JP5176675B2 - Electric stove - Google Patents

Description

  The present invention relates to a structure of an electric heater that performs heating by radiant heat of a heater.

  The reflective electric stove has a frame body installed on the upper part of the base, a vertically long heater provided in the frame body, and a curved reflector plate that opens on the back and sides of the heater and has a front opening. When the heater is energized, the heat rays radiated forward from the heater and the heat rays reflected by the reflector are radiated forward from the opening on the front surface of the frame, and heating is performed by radiant heat of the heat rays.

In addition, in order to radiate the heat rays of the heater over a wide range in front of the frame, a rotation shaft is provided between the lower portion of the frame and the upper portion of the base so that the frame can be rotated and a drive device for driving the rotation shaft is provided. A swing mechanism for driving the frame to the left and right by the driving device is provided so that heat rays can be radiated in a wide range in front of the frame.
JP-A 63-57895

  In recent years, as the heating capacity and design diversify according to the user's request, the number of models tends to increase. It is necessary to prepare multiple types of heaters and reflectors according to the heating capacity and frame, but the heaters and reflectors are managed separately, and must be prepared correctly for each model to be produced, and parts management is required. It is very troublesome. In addition, the number of parts and assembly processes to be assembled in the production line has increased, resulting in poor work efficiency.

  In addition, when the swing mechanism is provided, the frame is supported by the rotating shaft, but most parts such as heaters, reflectors, and electrical components are placed in the frame of the electric stove. Since a heavy frame is arranged, the upper part of the frame is staggered and the structure is not stable. For this reason, it is necessary to rotate the driving device and the rotating shaft while supporting the heavy frame body, and a motor having a large driving force is required to drive the entire frame body. The shape of the base for storing the battery becomes large, and there is a problem that the installation space when using the electric stove, noise and vibration are increased.

  The present invention solves the above-described problem, and a vertically long heater 2 and a curve positioned on the side and back of the heater 2 while opening the front of the heater 2 in a frame 1 having an opening 1a on the front surface. A reflector 3, a top reflector 3a located at the top of the reflector 3 and the leading edge reaching the opening 1a, and a leading edge located at the bottom of the reflector 3 and reaching the opening 1a. A bottom reflecting plate 3b is provided, and a base 4 is provided at the lower part of the frame 1, and the base 4 is erected from the floor by the base 4 to radiate heat rays of the heater 2 from the front opening 1a of the frame 1. In the electric stove, the heater 2, the reflecting plate 3, and the upper and bottom reflecting plates 3a and 3b are attached, and a fixed plate 5 constituting an integrated heating element unit A is provided. A stop piece 6 is provided, and a fixing plate 5 is provided in the frame 1. A locking portion 7 corresponding to the locking piece 6 is provided, and the heating element unit A is mounted in the frame body 1 by engagement between the locking piece 6 of the fixing plate 5 and the locking portion 7 in the frame body 1. It is what.

  Further, a pair of rotating shafts 6a is provided in the locking piece 6 of the fixed plate 5, and a shaft hole 7a corresponding to the rotating shaft 6a is formed in the locking portion 7 in the frame 1, so that the heating element unit A indicates that the rotating shaft 6a of the fixed plate 5 is fitted into the shaft hole 7a in the frame 1, and is rotatably attached to the frame 1 by the rotating shaft 6a. , And the direction in which the openings of the heater 2 and the reflector 3 in the frame 1 face is changed, so that the heater 1 is spread over a wide area obliquely forward of the frame 1 with the frame 1 facing the front. Heat rays can be emitted.

  The fixing plate 5 is divided into upper and lower parts, an upper fixing plate 5a for attaching the upper part of the heater 2, the upper part of the reflecting plate 3, and the upper reflecting plate 3a, the lower part of the heater 2, the lower part of the reflecting plate 3, and the bottom reflecting plate 3b. The upper fixing plate 5a and the lower fixing plate 5b can be used in common regardless of the size and shape of the heater 2 and the reflecting plate 3.

  Further, since the heating element unit A is configured in a vertically symmetrical shape, the confirmation operation in the vertical direction of the heating element unit A in the assembly line becomes unnecessary, and the work efficiency can be improved.

In the present invention, the heater 2, the reflecting plate 3, the upper reflecting plate 3a, and the bottom reflecting plate 3b are attached to the fixed plate 5 in advance to form an integral heating element unit A, and the locking piece 6 provided on the fixed plate 5 and the frame The heating element unit A is attached in the frame 1 by engagement with the locking portion 7 in the body 1.
In this configuration, the heater 2 and the reflector 3 can be integrally managed in the state of the heating element unit A, so that the management work can be simplified. In the assembly line, only the heating element unit A is attached to the frame body 1, and the assembly process is reduced. It was able to decrease. Further, the locking piece 6 of the fixing plate 5 and the locking portion 7 in the frame body 1 can have a common structure. Even when the model is changed, the work procedure for mounting the heating element unit A in the frame body 1 is the same. Therefore, there is a possibility that work efficiency can be improved.

In addition, a rotation shaft 6 a is provided in the locking piece 6 of the fixed plate 5, a shaft hole 7 a is provided in the locking portion 7 in the frame 1, and the rotation shaft 6 a is fitted into the shaft hole 7 a, whereby the fixed plate 5 Is mounted so as to be rotatable about the rotation shaft 6a, the heating element unit A integrally formed by the fixed plate 5 is rotated about the rotation shaft 6a, and the heater 2 and the reflector 3 in the frame 1 are rotated. The direction in which the opening of the heater 2 faces is variable, and a structure that can radiate the heat rays of the heater 2 over a wide range obliquely forward of the frame 1 can be realized.
In this configuration, it is possible to heat a wide range in front of the frame body 1 with the front opening 1a of the frame body 1 facing the front, so that it is not necessary to rotate the entire frame body 1, and the frame body 1 becomes the base 4. A product having a stable structure that can be fixed and has no wobbling of the frame 1 can be realized.

  The fixing plate 5 is divided into an upper fixing plate 5a and a lower fixing plate 5b, and the upper part of the heater 2, the upper part of the reflecting plate 3, and the upper reflecting plate 3a are attached to the upper fixing plate 5a. The heating element unit A is configured by attaching the lower part and the bottom reflecting plate 3b to the lower fixing plate 5b. Even when a plurality of types of heaters 2 and reflectors 3 are prepared for each model, the upper and lower fixing plates 5a and 5b can be formed in the same shape, so that the upper fixing plate 5a and the lower fixing plate 5b are attached. Since there is no need to change the structure, it can handle multiple models as a common part, which makes it easier to manage parts and reduce production costs.

  In addition, since the heating element unit A is configured in a vertically symmetrical shape and has no vertical direction, no confirmation work in the vertical direction is required when the heating element unit A is mounted in the frame 1. Work efficiency can be improved. The upper reflecting plate 3a and the bottom reflecting plate 3b, and the upper fixing plate 5a and the lower fixing plate 5b can be composed of parts having the same shape, and the parts can be shared. This makes it possible to reduce the production cost.

  The present invention will be described with reference to the embodiments shown in the drawings. Reference numeral 1 denotes an electric stove frame, 1a denotes an opening provided on the front surface of the frame 1, 2 denotes a heater attached in the frame 1, and 3 denotes a front of the heater 2. The reflector is arranged so as to surround the back and sides of the heater 2 in a curved shape while opening the reflector 3a is an upper reflector attached to the upper part of the reflector 3 and 3b is a bottom reflector attached to the lower part of the reflector 3 Reference numeral 4 denotes a base attached to the bottom surface of the frame body 1, and the frame body 1 stands from the floor surface by the base 4.

  Reference numeral 16 denotes an operation switch provided on the upper portion of the frame 1. When an operation start signal is input by the operation switch 16, energization of the heater 2 is started, the heater 2 is heated and the whole becomes high temperature. Heat rays are radiated forward from the front opening 1a.

Reference numeral 5 denotes a fixing plate for attaching the heater 2, the reflecting plate 3, the upper reflecting plate 3a, and the bottom reflecting plate 3b, 8 denotes a fixing portion for the reflecting plate 3 provided on the upper and lower portions of the fixing plate 5, and 9 denotes a fixing portion for the reflecting plate 3. 8 is a fixing part for the upper reflecting plate 3a and the bottom reflecting plate 3b formed by bent pieces formed at the upper part and the lower part, and 10 is a fixing screw attached to the fixing parts 8 and 9, and the reflecting plate 3, the upper reflecting plate 3a, The bottom reflecting plate 3 b is attached to the fixing plate 5 with fixing screws 10.
Reference numeral 11 denotes a heater fixing portion composed of L-shaped bent pieces formed on the upper and lower portions of the fixing portion 8 of the reflector 3, and 12 denotes a fixing piece attached to the heater fixing portion 11. It is clamped by the heater fixing part 11 and the fixing piece 12 and fixed to the fixing plate 5.
The heating element unit A is configured in advance by attaching the heater 2, the reflecting plate 3, the upper reflecting plate 3a, and the bottom reflecting plate 3b to the fixed plate 5.

  6 is a locking piece formed on the upper and lower portions of the heater fixing portion 11 of the fixing plate 5, 7 is a locking portion provided on the upper and lower portions in the frame 1, and 13 is a locking piece 6 and the locking portion 7. The fixing plate 5 is fixed in the frame 1 by engaging the locking piece 6 of the fixing plate 5 with the locking portion 7 in the frame 1 and mounting the fixing screw 13. The heating element unit A can be mounted in the frame 1.

Conventionally, a plurality of types of heaters 2 and reflectors 3 prepared for each model are managed separately, and a heater 2 and a reflector 3 corresponding to each model to be produced are selected and installed on an assembly line. Therefore, the management work is very troublesome, and there is a problem that the number of parts and the number of assembly processes in the assembly line increase.
In this invention, the heater 2 and the reflector 3 can be integrally attached to the fixed plate 5 in advance and managed in the state of the heating element unit A. Since the heating element unit A corresponding to each model to be produced is selected, the management work is simplified. It became possible.
Further, in the assembly line, the heating element unit A can be mounted in the frame body 1 only by engaging the locking pieces 6 of the fixing plate 5 and the locking portions 7 in the frame body 1. Since the stopper 6 and the locking portion 7 in the frame 1 can be shared in structure regardless of the shape of the heater 2 or the reflector 3, the heating element unit A can be mounted even when the production model is changed. Since there is no change in the work procedure at the time of attachment, work efficiency may be improved.

In another embodiment of the present invention, 6a is a pair of upper and lower rotating shafts provided on the locking piece 6, 7a is a shaft hole provided on the locking portion 7 in the frame 1, and the rotation of the fixed plate 5 is performed. When the shaft 6a and the shaft hole 7a in the frame 1 are fitted, the fixing plate 5 is rotatably mounted in the frame 1.
In FIG. 2, reference numeral 7 b denotes a locking plate provided with a shaft hole 7 a constituting the upper locking portion 7, and the fixed plate 5 fits the lower rotating shaft 6 a into the lower shaft hole 7 a in the frame 1. On the other hand, the upper rotating shaft 6a is fitted into the shaft hole 7a of the locking plate 7b, and the locking plate 7b is fixed in the frame 1 with the fixing screw 13, thereby fixing the fixing plate 5 in the frame 1. It is attached to.

  In this configuration, the direction in which the heater 2 and the reflecting plate 3 in the frame 1 face is variable by rotating the heating element unit A integrally formed by the fixed plate 5 about the rotation shaft 6a. With the front opening 1a of the frame 1 facing the front, the direction of the heat rays radiated from the front opening 1a of the frame 1 is changed, so that the heat rays reach the diagonally forward side of the frame 1 and are wide. Can be heated.

Reference numeral 14 denotes a driving means for driving the heating element unit A mounted rotatably in the frame 1, 14 a denotes a motor of the driving means 14, 14 b denotes an eccentric cam driven by the motor 14 a, and 15 denotes locking of the fixed plate 5. It is a connecting part constituted by a long hole provided in the piece 7, and the long hole of the connecting part 15 is fitted with the pin of the eccentric cam 14 b when the rotating shaft 6 a of the fixed plate 5 is fitted into the shaft hole 7 a in the frame 1. Match.
When the eccentric cam 14b is rotated by the motor 14a, the eccentric cam 14b drives the fixed plate 5 via the connecting portion 15, and the heater 2 and the reflecting plate 3 attached to the fixed plate 5 are centered on the rotation shaft 6a. It swings left and right.

By making the heating element unit A rotatable, the frame body 1 is securely fixed to the base 4 so that the frame body 1 does not wobble and is used in a stable state even when the heating element unit A rotates. It became possible.
In addition, a motor with a large driving force is not required when driving the heater 2 or the reflector 3, noise and vibration due to the driving of the motor can be reduced, and the rotating shaft portion and the driving means can be downsized. It is possible to reduce the size and weight.

  FIG. 4 is an embodiment showing a structure in which the fixing plate 5 is divided into upper and lower parts, 5a is an upper fixing plate arranged at the upper part of the heating element unit A, and 5b is a lower fixing plate arranged at the lower part of the heating element unit A. The upper fixing plate 5a and the lower fixing plate 5b are composed of parts having the same shape.

In the embodiment of FIG. 4, the upper fixing plate 5 a and the lower fixing plate 5 b constitute the heater fixing portion 11 with L-shaped parts, and are reflected by the bent pieces formed at the ends of the L-shaped heater fixing portion 11. The fixing part 8 of the plate 3 is constituted, and the fixing part 9 of the upper reflecting plate 3a or the bottom reflecting plate 3b is constituted by a bent piece formed on the opposite side to the fixing part 8 of the reflecting plate 3.
Then, an upper fixing plate 5a and a lower fixing plate 5b are respectively attached to the upper and lower portions of the reflecting plate 3, and the reflecting plate 3, the upper fixing plate 5a and the lower fixing plate 5b are integrally formed, and the upper and lower portions of the heater 2 are formed as upper portions. The fixing plate 5a and the lower fixing plate 5b are attached to the heater fixing portion 11 and fixed by a fixing piece 12. The upper reflecting plate 3a is fixed to the fixing portion 9 of the upper fixing plate 5a, and the bottom reflecting plate 3b is fixed to the lower fixing plate 5b. When attached to 9, the heating element unit A is completed.

  The shape and size of the heater 2 and the reflector 3 are different for each model, but the upper and lower structures, which are the mounting positions of the upper fixing plate 5a and the lower fixing plate 5b, can be shared regardless of the shape and size. Therefore, it is not necessary to change the shape of the upper fixing plate 5a and the lower fixing plate 5b for each model, and since it is possible to support a plurality of models as common parts, the number of parts can be reduced, management work can be simplified, and cost can be reduced. It can contribute to the decline.

Further, when the heater 2 has a specification that can be energized regardless of the vertical direction, the heat generating unit A is configured in a vertically symmetrical shape so that heat is generated when the heat generating unit A is mounted in the frame 1. The confirmation work in the vertical direction of the body unit A is not necessary, and the work efficiency can be improved.
In this configuration, the upper reflecting plate 3a and the bottom reflecting plate 3b can be configured by parts having the same shape, and the upper fixing plate 5a and the lower fixing plate 5b can be configured by parts having the same shape, and the upper fixing plate 5a and the lower fixing plate 5b. Common parts and common parts of the upper reflector 3a and the bottom reflector 3b can be reduced, so that the number of parts can be greatly reduced, management work can be simplified, and production costs can be reduced. It was.

It is a longitudinal cross-sectional view of the electric heater which shows the Example of this invention. It is a longitudinal cross-sectional view of the electric heater which shows the other Example of this invention. It is principal part sectional drawing of the electric heater of the Example shown in FIG. It is a disassembled perspective view of the heat generating unit used in the Example of this invention.

Explanation of symbols

1 Frame 2 Heater 3 Reflector 3a Upper Reflector 3b Bottom Reflector 4 Base 5 Fixed Plate 5a Upper Fixed Plate 5b Lower Fixed Plate 6 Locking Piece 6a Rotating Shaft 7 Locking Portion 7a Shaft Hole A Heating Element Unit

Claims (4)

In a frame (1) having an opening (1a) on the front surface, a vertically long heater (2) and a curved shape located on the side and back of the heater (2) while opening the front of the heater (2). A reflector (3), an upper reflector (3a) located at the upper part of the reflector (3) and having a leading edge reaching the opening (1a), and a lower part of the reflector (3) A bottom reflector (3b) having a leading edge reaching the opening (1a);
A base (4) is provided at a lower portion of the frame (1), and the frame (1) is made to stand from the floor surface by the base (4), and the heater (2) is opened from the front opening (1a) of the frame (1). ) In an electric stove that emits heat rays
The heater (2), the reflector (3), and the top and bottom reflectors (3a) and (3b) are attached to provide a fixed plate (5) constituting an integral heating element unit (A). 5) A pair of locking pieces (6) are provided on the upper and lower parts of
And in the said frame (1), the latching | locking part (7) corresponding to the latching piece (6) of a fixed plate (5) is provided,
The heating element unit (A) is mounted in the frame (1) by the engagement between the locking piece (6) of the fixing plate (5) and the locking portion (7) in the frame (1). Electric stove. The locking piece (6) of the fixed plate (5) is provided with a pair of rotating shafts (6a),
A shaft hole (7a) corresponding to the rotation shaft (6a) is formed in the locking portion (7) in the frame (1),
In the heating element unit (A), the rotation shaft (6a) of the fixed plate (5) is fitted into the shaft hole (7a) in the frame (1), and the frame (1) is formed by the rotation shaft (6a). It is pivotally mounted inside
The heating element unit (A) rotates about the rotation axis (6a), and the direction in which the heater (2) and the reflector (3) in the frame (1) face is variable. The electric heater according to claim 1.   The fixing plate (5) is divided into upper and lower parts, an upper fixing plate (5a) for attaching an upper part of the heater (2), an upper part of the reflecting plate (3) and an upper reflecting plate (3a), a lower part of the heater (2), The electric heater according to claim 1 or 2, wherein the electric heater comprises a lower part of the reflector (3) and a lower fixing plate (5b) to which the bottom reflector (3b) is attached.   The electric heater according to any one of claims 1 to 3, wherein the heating element unit (A) has a vertically symmetrical shape.

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