JPH0629910Y2 - Heating element support device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heating element supporting device used for an electric kotatsu or the like having a ring-shaped heating element, and particularly to a shape change caused by a thermal change of the heating element. It is characterized by the corresponding structure.

2. Description of the Related Art As shown in FIG. 6, a conventional heating element support device sandwiches the surface of the outer circumference of a glass tube at the end of a heating element such as an infrared lamp made of a glass tube with a support body 1 and a support piece 2. It was fixed with screws 3 or the like.

However, if the above configuration can be used,
Only in the case of a rod-shaped heating element in which the direction of thermal deformation when the heating element is turned on and off is limited only to the length direction of the heating element, and when used for a ring-shaped heating element. At the end of the heating element, there is thermal deformation in the direction connecting the center of the ring shape and the outer circumference circle (hereinafter referred to as the radial direction of the heating element) due to thermal deformation in the length direction of the heating element. If the part is fixed, the heat deformation in the radial direction of the heat generating element, which is weak in strength, is restricted and the heat generating element is damaged. Further, since the support body 1 is fixed to the both ends of the heating element by the support pieces 2, when the lead wire of the heating element receives an external force due to being caught by the moving object, the both ends of the heating element are There is an extremely high risk that the external force is directly applied to damage both ends of the heating element. Therefore, it is necessary to fix the lead wire by a lead wire attaching device provided separately, resulting in an increase in cost.

SUMMARY OF THE INVENTION The present invention solves the above problems and provides a heating element support device capable of holding a ring-shaped heating element made of a glass tube with a simple structure.

Means for Solving the Problems A heating element holding device according to the present invention includes a fixing portion fixed to a substrate, a standing portion bent from the fixing portion in an L-shape, and the standing portion. An elastically deformable elastic portion that is bent and extended in the direction of the fixing portion in a V shape from each side plate thickness surface of the upright portion, and further outward than each tip of the elastic portion. Support arms extending toward the front end and an elastically deformable bent portion formed by bending the tips of the support arms in an L shape, and a holding space for sandwiching a ring-shaped heating element therebetween. A holding part consisting of a pair of holding pieces each curved downward in a half-moon shape so as to form and a tip of the other holding piece so as to hold the tip of the one holding piece by caulking. The formed holding portion and the end portion of the heating element are provided. A lead wire mounting piece bent in a position opposite to the fixing portion is integrally formed through the strut portion formed on the strut portion so as to sandwich the lead wire, and each of the holding spaces The both ends of the arranged ring-shaped heating element are fixed by the crimping of the holding crimping portion.

The heating element holding device of the present invention fixes the both ends of the ring-shaped heating element by the holding portion formed at the tip of the elastic portion, so that the ring-shaped heating element can hold the heating element. Since the ring-shaped heating element does not rotate carelessly due to impact without restricting the deformation in the length direction (axial direction) and the radial direction, both ends of the ring-shaped heating element are more than the holding part. As a result, the ring-shaped heating element and the lead wire can be prevented from being damaged. Further, since the ring-shaped heating element and the lead wire are supported and fixed by one heating element holding device which is integrally formed, the ring-shaped heating element and the lead wire are provided at both ends of the heating element 1 generated when the heating element is transported. Further, it is possible to prevent the lead wire from breaking due to the vibration of the lead wire, and to prevent the external force from being applied to both ends of the heating element due to the elastic deformation of the elastic member even when an external force is applied to the lead wire.

Embodiment Hereinafter, a heating device supporting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

In FIG. 2, reference numeral 1 denotes a plate-shaped support portion, and the support portion 1 is bent in an L shape to form a fixed portion 2 and a standing portion 3. The fixing portion 2 has a mounting hole 5 formed on the substrate 4 shown in FIG. 1 through which the fixing portion 2 is screwed in order to screw the fixing portion 2 with the screw. Each side plate thickness surface located on the tip side of the standing portion 3, that is, a plate-shaped elastic portion 6 elastically deformable outward from each side end surface portion is bent in the direction in which the fixing portion 2 is located. Each is extended. That is,
Each elastic portion 6 is extended so as to be positioned in a V shape around the standing portion 3. A support arm 7 extending further outward is provided at the tip of each elastic portion 6. An elastically deformable first bent portion 8 formed by bending the tip of each support arm 7 into an L-shape and an L-shaped bend from one end surface of the support arm 7 are formed. Second bent portions 9 are provided respectively. Due to the second bent portion 9, the portion of each support arm 7 where the second bent portion 9 is located is not elastically deformed. Positioned below the elastic portion 6 in which a circular space 10 is formed by a pair of holding pieces that are curved in a semicircular shape and extend downward at the tips of the respective first bent portions 8. The holding unit 11 is provided. A holding caulking portion 13 having a pair of caulking pieces 12 facing each other is formed at one tip end of the pair of holding pieces, and the other tip end is held by caulking the pair of caulking pieces 12. It is designed to be held by the caulking portion 13. Further, the above-mentioned standing portion 3 of the supporting portion 1 is provided with a pair of opposing lead wire mounting pieces 14 extending from respective side end surfaces thereof in a direction perpendicular to the plate surface of the standing portion 3. ing. As shown in FIG. 1, the heating element supporting device integrally formed by the sheet metal configured as described above is provided between the both ends of the heating element and in the extension line direction of the end of the heating element. It is fixed in parallel with the substrate 4 so that the standing part is located,
The circular cross section of each end portion 16 of the heating element 15 is attached to the holding portion 1.
The heating element 15 is fixed by locating it in the space 10 and crimping the holding crimping portion 13 of the holding portion 11. At that time, the heating element 15 is held by the heating element supporting device and a heating element holding device described later so as to be substantially parallel to the surface of the substrate 4. Further, the lead wires 17 provided at the respective end portions 16 of the heating element 15 are sandwiched by the pair of lead wire attachment pieces 14 of the holding portion 11, respectively.

Next, referring to FIG. 3 and FIG. 4, a description will be given of a heating element holding device for holding another portion of the heating element 15, that is, the heating portion of the heating element 15.

Reference numeral 18 denotes a plate-shaped quadrilateral fixing base portion, and a supporting standing portion 19 extending upward from the plate surface of the fixing base portion 18 is provided at one end thereof. An elastically deformable U-shaped holding piece 20 is provided at the tip of the supporting upright 19.
Is provided, and the heating element 15 is detachably held as shown in FIG. The holding element 20 has a heating element 1
Slotted grooves 21 are formed so as to reduce the contact area with the outer peripheral surface of No. 5 and reduce the thermal influence.
Further, an L-shaped first locking piece 22 is provided downward at the other end of the fixing substrate 18 facing the end of the fixing substrate 18 where the supporting standing portion 19 is located. A second locking piece 23 is provided downwardly at each end of the first locking piece 22 and the other opposing fixing base 18 where the supporting standing portion 19 is not located. . Then, the first locking pieces 22 and the second locking pieces 23 are inserted into the first locking holes 24 and the second locking holes 25 provided in the substrate 4, respectively.

In FIG. 4, the fixing base portion 18 is fixed to the substrate 4 by bending the second locking piece 23 inserted into the second locking hole 25.

The heating element holding device configured as described above is located at a position where the heating element 15 is divided into three equal parts based on the above-mentioned heating element supporting device fixed to the substrate 4 as shown in FIG. Board 4
Fixed to the heating element 15 together with the supporting device for the heating element.
Is held.

Therefore, even if the direction of thermal deformation of the heating element 15 during lighting and non-lighting occurs in the axial direction A (shown in FIG. 5) of the heating element 15 and the like, and the radius of the heating element changes, the heating element changes. Since the elastic body 6 of the supporting device elastically deforms in the plate thickness direction thereof, that is, in the radial direction of the heating element, the thermal deformation of the heating element 15 is not blocked as in the conventional case, and the heating element 15 is not damaged. Further, by providing the elastically deformable first bent portion 8 as in the present embodiment, the axial direction A of the heating element 15 is
The thermal deformation of is absorbed by the deformation of the first bent portion 8.

As described above, according to the heating element support device of the present invention, by holding both ends of the ring-shaped heating element by the holding portion formed at the tip of the elastic portion, the ring-shaped heating element can be heated. Length direction (axial direction) of the heating element due to heat generation of the body
In addition, since the ring-shaped heating element does not inadvertently rotate and move due to impact or the like without restricting the radial deformation, both ends of the ring-shaped heating element fall off from the holding part, and the ring-shaped heating element It is possible to prevent the heating element and the lead wire from being damaged. Further, since the ring-shaped heating element and the lead wire are supported and fixed by one heating element holding device which is integrally formed, the ring-shaped heating element and the lead wire are provided at both ends of the heating element 1 generated when the heating element is transported. Further, it is possible to prevent the lead wire from breaking due to the vibration of the lead wire, and to prevent the external force from being applied to both ends of the heating element due to the elastic deformation of the elastic member even when an external force is applied to the lead wire.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a heating element support device in use according to an embodiment of the present invention, FIG. 2 is a perspective view of the device, and FIG. 3 is an exploded perspective view showing a main part of the same embodiment. 4, FIG. 4 is a cross-sectional side view showing the main part of the same embodiment, FIG. 5 is a plan view showing the same embodiment, and FIG. 6 is a perspective view showing a conventional heating element support device. 1 ... Support part, 2 ... Fixed part, 3 ... Standing part, 4 ... Board, 6 ... Elastic part, 8 ... First bent part, 10 ... Space, 11 ... Holding part, 15 ... Heating element, 16 ... Edge.

Claims (1)

[Scope of utility model registration request] 1. A fixing portion fixed to a substrate, a standing portion formed by bending the fixing portion in an L-shape, and a side plate thickness surface of the standing portion centering on the standing portion. An elastically deformable elastic portion that is bent and extended in a direction in which the fixing portion is positioned in a V-shape, and a support arm that extends further outward from the tip of each elastic portion, Each of the support arms has an elastically deformable bent portion formed by bending each tip into an L shape, and curved downward in a half-moon shape so as to form a holding space for sandwiching a ring-shaped heating element therebetween. A holding portion formed of a pair of holding pieces extending toward each other, a holding crimping portion formed at the tip of the other holding piece so as to hold the tip of one of the holding pieces by crimping, and the heat generation. To hold the lead wire provided at the end of the body, Of the ring-shaped heating element that is integrally formed with the lead wire attachment piece that is bent at a position opposite to the fixing portion via the pillar portion formed in the pillar portion, and that is respectively arranged in the holding space. A heating element support device having both ends fixed by crimping of the holding crimping portion.