JP2012132646A - Panel type heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel type heater in which a displacement of a wire heater hardly occurs in a housing.SOLUTION: A panel type heater 10 has a wire heater 15 in a housing 11. A movable pin 14 that comes in contact with and supports the wire heater 15 is provided at a bending part of wire heater 15. A maintaining hole 18 for maintaining the movable pin 14 is provided in the housing 11. A projection 19 includes the maintaining hole 18, allowing the movable pin 14 to easily move in one direction and to hardly move in the other direction. As a result, the wire heater 15 can be firmly supported and fixed in the housing 11 and the wire heater 15 can be subjected to tension on a regular basis.

Description

  The present invention relates to a panel heater that houses a linear heating element, and more particularly to a panel heater suitable for melting snow outdoors.

  A floor heating panel is known as a heater that uses a linear heating element as a heat source. In this floor heating panel, linear heating elements are arranged in a wave shape under the surface material and installed on the indoor floor surface, which contributes to floor heating that warms the room naturally by heating the floor. . Such a floor heating panel is described, for example, in JP-A-9-79593 (Patent Document 1).

JP-A-9-79593

The linear heating element is housed in the floor heating panel using a heat-insulating material or a heat equalizing sheet for transferring heat from the linear heating element to the floor. Is pressed from above and below and fixed in the panel.
However, panel heaters used outdoors for snow melting and the like, unlike floor heating panels that are placed on the indoor floor, the installation surface is not limited to horizontal, but may be placed vertically or diagonally depending on the installation situation. . Further, when a moving body such as a snowplow, a large truck, or a train is used so that snow does not accumulate on the mudguard (mudguard), vibration and impact may be applied. In a panel heater used under such circumstances, the position of the linear heating element is not stable only by pressing on the upper and lower surfaces, and there is a possibility that effective heat generation cannot be performed by moving in the housing and causing positional displacement. .

  In other words, the present invention has been made to solve these problems, and the positional deviation of the linear heating element in the housing is maintained so that effective heat generation can be maintained even when used outdoors or on a moving object. The present invention provides a panel heater that is difficult to get up.

In order to achieve the above object, the present invention is configured as follows.
That is, a panel-type heater having a linear heating element in a casing, wherein a locking pin for contacting and supporting the linear heating element is provided on an inner portion of the casing that becomes a bent portion of the linear heating element. A mold heater is provided.

  Since a locking pin that comes into contact with and supports the linear heating element is provided on the inner portion of the housing that becomes a bent portion of the linear heating element, the movement of the linear heating element in the panel surface direction can be suppressed. That is, in addition to the vertical pressing and fixing to the panel surface, which is performed in the conventional floor heating panel, the locking and fixing in the panel surface direction is added, so the vertical and diagonal directions are not limited to installation in the horizontal direction. The positional deviation of the linear heating element can be suppressed even for installation on a moving body that is not limited to installation and stationary installation.

A panel heater in which the locking pin is a movable pin can be used.
Since the locking pin is formed of a movable movable pin, the position of the locking portion where the linear heating element and the movable pin come into contact can be moved. By making the locking portion movable, the slack of the linear heating element can be suppressed and appropriate tension can be applied.
Further, since the linear heating element can be locked to the standing movable pin, the linear heating element and the movable pin can be brought into close contact with each other at the bent portion of the linear heating element. Thereby, the heat from a bending part can be transmitted to a housing | casing via a movable pin, and the heat_generation | fever from the bending part of a linear heat generating body can be utilized effectively.
Further, since the linear heating element can be arranged so that the linear heating element is wound around the movable pin, the arrangement of the linear heating element is easy and the assembly is easy.

It is possible to provide a panel heater in which a long hole-like holding hole in which the movable pin can move along the hole shape is provided in the housing, and a protrusion for restricting the movement of the movable pin is provided in the holding hole.
A long hole-shaped holding hole that allows the movable pin to move along the shape of the long hole is provided in the housing, and a protrusion that restricts the movement of the movable pin is provided in the holding hole. Can be changed in multiple stages. Since the position of the movable pin can be changed, the slack of the linear heating element can be prevented regardless of the length of the linear heating element. In addition, after the linear heating element is loosened, it can be pulled again, and the tension state of the linear heating element can be maintained for a long time.

The projection can be a panel heater that is a biased projection that makes the movable pin movable easily on one side and difficult on the other side.
Since the projection is a bias projection that makes the movable pin movable easily on one side and difficult on the other side, the movable pin does not easily move in the slack direction of the linear heating element. In the tightening direction, the movable pin can be easily moved and tightened. Therefore, it is a structure that is not loose and easy to tighten.

The linear heating element has a long cross section, and is a panel heater that locks the wide surface of the linear heating element along the locking pin.
Since this is a panel heater having a linear heating element in the casing, the linear heating element needs to be bent and arranged in the casing. This linear heating element has a long and long cross section, and it is reasonable to place the wide part of the linear heating element in contact with the housing at the location where the linear heating element is extended. It is. On the other hand, at the bent part of the linear heating element, the wide part rises. Therefore, it becomes difficult to ground the wide part to the housing. However, since the locking pin is provided at the bent portion, the wide surface of the linear heating element can be locked along the locking pin, and the linear heating element can be engaged at the bent portion. In addition to increasing the supporting force of the linear heating element, heat can be easily transferred to the outside from the bent portion of the linear heating element.

  Therefore, the linear heating element can be brought into close contact with the casing at the extended portion of the linear heating element, and the heat from the linear heating element can be effectively transmitted to the casing, and even at the bent portion of the linear heating element. Heat can be transferred to the housing through the locking pin in close contact with the locking pin. And the position shift of a linear heating element can be suppressed. If the location where the linear heating element rises and swells cannot be locked with the locking pin, even if it is extended, it will be lifted from the housing at the extended location, and the extended location will not be sufficiently adhered to the housing. Although the possibility that the linear heating element moves in the body increases, such inconvenience can be avoided.

According to the present invention, it is a panel heater that prevents a linear heating element from moving and causing a positional shift in a housing that houses the linear heating element, and generates stable heat generation.
Moreover, it is a panel type heater which can also effectively transmit the heat generated from the bent portion of the linear heating element to the outside.

It is a cross-sectional perspective view in the SB-SB line cross section of FIG. 2 which shows the internal structure of a panel type heater. It is a schematic cross section in the SA-SA line cross section of the panel type heater of FIG. It is explanatory drawing explaining the shape in the bending part of a linear heat generating body. It is the SC-SC line expanded sectional view of FIG. It is a cross-sectional view which shows the holding hole and movable pin which were provided in the housing | casing.

The present invention will be described in detail with reference to the drawings.
FIG. 1 is a transverse sectional view for explaining the inside of the panel heater 10 of the present invention, and FIG. 2 is a longitudinal sectional view of the panel heater 10.
As shown in FIG. 1, the panel heater 10 is provided with a holding hole 18 for holding the movable pin 14 in the base material 12 constituting the housing 11. The linear heating element 15 is bent and arranged in a wave shape (zigzag shape) using the movable pin 14 fixed in the holding hole 18 as a support. As shown in FIG. 2, a linear heating element 15 is enclosed in a casing 11 made of a base material 12 and a cover material 13.

  Although details of the linear heating element 15 will be described later, the cross-sectional shape thereof may be an elongated shape such as an array shape or an oval shape. As shown in FIGS. 3 and 4, the wide portion 15 b of the linear heating element 15 is in close contact with the inner side surface 12 a of the base material 12 through the cushion material 16 at the extended portion 15 a of the linear heating element 15. At the same time, the wide portion 15 b directly contacts the inner surface of the cover material 13 with respect to the cover material 13. On the other hand, the bent portion 15c of the linear heating element 15 has a long cross section of the linear heating element 15, so that it has to be changed from horizontal installation to vertical installation, resulting in swelling due to vertical installation. End up. Therefore, although it is difficult to transfer heat directly from the bent portion 15 c to the cover material 13, the wide portion 15 b of the linear heating element 15 is in close contact with the side surface of the movable pin 14. Can be effectively transmitted, and the heat generated from the bent portion 15c of the linear heating element 15 can also be used effectively.

  As shown in FIG. 5, the holding hole 18 has an elongated cross section, and the movable pin 14 is fixed in the elongated hole, while the movable pin can move in the elongated hole. Yes. In other words, the elongated hole is provided with a projection 19 for restricting the movement of the movable pin 14 so that the movable pin 14 cannot move easily due to resistance when it moves away from the fixed state. .

As shown in FIG. 5, the shape of the protrusion 19 is a flat protrusion 19 with one surface being smooth and the other surface being steep, so that the movable pin 14 can be easily moved to one side (downward in FIG. 3). This makes it difficult to move to the other side (upper side in FIG. 3). In FIG. 5, four pairs of protrusions 19 are provided symmetrically, but the number of protrusions 19 can be changed as appropriate depending on the number of stable positions of the movable pin 14. Moreover, the movement resistance to the one side and the other side of the movable pin 14 can also be made the same, without using a protrusion.
The shape of the movable pin 14 may be a shape corresponding to the shape of the protrusion 19 as shown in FIG. 5B in addition to a circular cross section as shown in FIG.

The upper and lower portions of the movable pin 14 may have different cross-sectional shapes or cross-sectional areas so that the position of the movable pin 14 can be easily changed during maintenance or the like.
For example, a flange is provided at the lower portion of the movable pin 14 and a groove corresponding to the flange is provided at the lower portion of the holding hole 18, and the flange is slid into the groove to make the movement of the movable pin 14 smooth. be able to. Further, when the movable pin 14 is removed, the movable pin 14 is rotated to release the engagement with the groove of the flange, and then lifted vertically toward the cover material 13 to come into contact with the flange protrusion 19. Thus, the movable pin 14 can be removed.

  Further, the protrusion 19 can have a shape that protrudes over the entire depth in the vertical direction of the holding hole 18, but can also have a shape that protrudes to a part of the depth in the vertical direction of the holding hole 18. In this case, the portion of the movable pin 14 that abuts against the projection 19 is shaped to engage with the projection 19 as shown in FIG. 5B, and the portion of the movable pin 14 that does not abut against the projection 19 is shown in FIG. It can be made circular as shown. With such a structure, the movable pin 14 is rotated to release the engagement, and the movable pin 14 can be easily moved by pulling up vertically, so that the movable pin 14 can be removed and moved.

  As described above, the shape and size of the movable pin 14 can be appropriately changed so that the movable pin 14 can be removed or moved while avoiding contact with the protrusion 19. However, the movable pin 14 may have a shape that is uniform in the vertical direction, such as a simple columnar shape. Even in such a shape, the vertical direction of the movable pin 14 is regulated by the cover material 13 and is accommodated in the housing 11. When it is, the movable pin 14 is difficult to come off.

Specific examples of the above-described members constituting the panel heater 10 will be described.
The linear heating element 15 generates heat by taking in electricity from a power cord (not shown) communicating with both ends thereof. For example, the linear heating element 15 has a plurality of PTC elements (not shown) serving as heat sources arranged along the linear direction. And a conductor (not shown) for connecting the PTC elements, and the PTC element and the conductor are preferably a linear heating element 15 covered with a flexible synthetic resin insulator. The cross section of the heating element 15 is long.
The cover member 13 is a member for heating the outside air by directly or indirectly transferring the heat from the linear heating element 15 provided in the cover member 13 to warm the outside air and for melting the snow that contacts the cover member 13. It is. Therefore, it is preferable that the cover material 13 is made of an aluminum alloy in consideration of thermal conductivity. Moreover, since the lead wire of the linear heating element 15 is copper, it is preferable to use a copper alloy considering the difference in thermal expansion coefficient from the lead wire. And since a heat | fever is transmitted effectively, a sheet metal shape is preferable.

The base material 12 presses the linear heating element 15 against the cover material 12 via the cushion material 16 at the extended portion 15 a of the linear heating element 15, and serves as a base that supports the movable pin 14. . For this reason, heat insulation and light weight are required, and resin or rubber is preferable.
The movable pin 14 is preferably made of a metal such as aluminum or copper alloy in consideration of fixing to the housing 11, groove processing, and thermal conductivity.
The cushion material 16 is a member that presses the linear heating element 15 against the cover material 13 and fills the gap between the cover material 13 and the base material 12, and is preferably made of a material having cushion performance and heat insulation performance. Rubber materials and foam molded products are used.
3 and 4, the cushion material 16 is used for the extended portion 15 a of the linear heating element 15. However, after the linear heating element 15 is brought into close contact with the cover material 13, the linear heating element 15 and the base are formed. A cushion material can be spread over the entire gap formed between the material 12 and the material 12.

The above embodiment is an example of the panel heater 10 of the present invention, and appropriate corrections and changes within the scope of the present invention are also included in the scope of the present invention.
For example, the base material 12 and the cover material 13 can be fixed by various methods such as fixing with an adhesive in addition to screwing.
Various functional materials other than the cushion material 16 can also be used. For example, appropriate changes such as covering the linear heating element 15 with the sheet-like heat transfer material and then covering with the cushion material 16 are possible.

  The base material 12 and the cover material 13 may be plate-shaped, or may be provided with columnar or beam-like protrusions for maintaining strength, or may be bent to provide unevenness. By providing the base material 12 and the cover material 13 with a recess that can accommodate the extended portion 15a of the linear heat generating element 15, a stable arrangement of the linear heat generating element 15 and reinforcement of the base material 12 and the cover material 13 can be achieved simultaneously. be able to.

The movable pin 14 does not have a structure that is fixed to the holding hole 18, and a tension may always be applied in a direction in which the linear heating element 15 is pulled.
For example, a groove in which the movable pin 14 can be slid is provided in the base material 12, a flange that engages with the groove is provided in the movable pin 14, and a tension spring is attached to the flange. In this way, in FIG. 5A, the movement of the movable pin 14 is not restricted by the protrusion 19 so that tension is always applied to the movable pin 14 below the drawing, and the linear heating element 15 is supported for some reason. If the tension of the movable pin 14 is reduced, the movable pin 14 automatically moves downward in the drawing, and the tension for supporting the linear heating element 15 can be increased. In this way, the movable pin 14 can move naturally (automatically) even if the linear heating element 15 receives vibrations or shocks that cause the linear heating element 15 to loosen, and the tension of the linear heating element 15 is maintained. can do.

  The panel heater 10 can be suitably used as a non-horizontal installation location such as a roof or a drainage groove, or a mudguard (mudguard) of a moving body such as a snowplow.

DESCRIPTION OF SYMBOLS 10 Panel type heater 11 Housing | casing 12 Base material 12a Inner side surface 13 Cover material 14 Movable pin 15 Linear heating element 15a Elongation part 15b Wide part 15c Bending part 16 Cushion material 18 Holding hole 19 Protrusion (deviation)

Claims (5)

A panel heater having a linear heating element in a housing,
A panel-type heater in which a locking pin for contacting and supporting the linear heating element is provided on an inner portion of the casing that is a bent portion of the linear heating element.   The panel heater according to claim 1, wherein the locking pin is a movable pin.   The panel heater according to claim 2, wherein a long hole-like holding hole in which the movable pin can move along the hole shape is provided in the housing, and a protrusion for restricting the movement of the movable pin is provided in the holding hole.   4. The panel heater according to claim 3, wherein the protrusion is a protrusion that makes the movable pin movable easily on one side and difficult on the other side. The panel heater according to any one of claims 1 to 4, wherein a cross section of the linear heating element is long, and a wide surface of the linear heating element is locked along the locking pin.

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