JP4748238B2 - Cooking device - Google Patents

Description

  The present invention relates to a cooker used for home or business use, and more particularly to a cooker having a voice guide function.

  Conventionally, as this type of cooking device, there is a cooking device equipped with a speaker and performing voice guidance (see, for example, Patent Document 1).

  FIG. 4 is a view showing a state in which the outer cover of the conventional cooking device described in Patent Document 1 is removed. In FIG. 4, the cooking device includes a cooking chamber 1 and a door 2 that can be opened and closed on the entire surface of the cooking chamber 1, and an operation unit 3 is formed on the right front surface of the door 2. The operation unit 3 is provided with a display tube 4, a timer 5, a menu selection switch 6 and the like as shown in the figure. An electric heater 7 is provided in the cooking cabinet 1 so as to penetrate the wall of the cooking cabinet 1.

Various control parts (not shown) are arranged in the space on the right side of the cooking cabinet 1. On the bottom plate 8 of the cooking device, the speaker 10 is attached with a screw (not shown) with the sound radiation direction facing downward, and the portion of the bottom plate 8 corresponding to the sound radiation direction of the speaker 10 facilitates the passage of sound. For this purpose, a punching hole (not shown) is provided. Reference numeral 9 denotes a leg screwed to the bottom plate 8 from the back surface.
JP 58-13944 A

  However, in the above-described conventional cooker configuration, since the speaker 10 is directly attached to the bottom plate 8, if the flatness of the bottom plate 8 on which the speaker 10 is installed cannot be ensured accurately, the sound of the speaker 10 There was a problem that sound cracking occurred due to vibration at the time of discharge. In addition, since the cooker is normally used in a cooking place, moisture, which is a use environment peculiar to the cooking place, adheres to the speaker 10 in which high humidity, dust, oily smoke, etc. are directly attached to the bottom plate 8. There was a problem that the sound deteriorated.

  This invention solves the said conventional subject, and it aims at providing the cooking appliance which can ensure a high quality audio | voice without being influenced by the use environment peculiar to a cooking appliance.

  In order to solve the above-mentioned conventional problems, the cooking device of the present invention cools a pan, a main body incorporating a pan heating means for heating the pan, a speaker provided in the main body, and a heat generating component in the main body. A fan motor that has at least a part of the speaker faced in the flow of air from the fan motor. Even when foreign matter that reduces the sound quality of the speaker, such as moisture, dust, or oil smoke, adheres to the fan motor Therefore, it is possible to easily remove high-quality sound.

  The cooker according to the present invention can realize a voice guide in which water and foreign matter hardly adhere to the speaker and high quality voice is ensured.

The first invention includes a pan, a main body incorporating a pan heating means for heating the pan, a speaker provided in the main body, and a fan motor that cools a heat generating component in the main body. Even if a foreign object that lowers the sound quality of the speaker, such as moisture, dust, or smoke, adheres to the speaker, it can be removed by the fan motor wind. This makes it easy to secure high quality audio.

(Reference Embodiment 1)
The cooker according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of a rice cooker in the embodiment of the present reference, and FIG. 2 is a diagram showing a configuration for mounting a speaker of the rice cooker.

  In FIG. 1, 31 is a main body of the rice cooker, and has a substantially cylindrical shape with an upper surface opened. An upper frame 32 is fitted into the opening 31 a of the main body 31. Inside the main body 31, a pan housing part 31 c for housing the pan 34 with the upper frame 32 and the coil base 33 is formed. The coil base 33 is formed in a bottomed cylindrical shape, and the upper end portion of the coil base 33 is fixed to the upper frame 32. The coil base 33 is provided with an in-bottom induction coil 35a as a pot heating means for induction heating the pot 34.

  In addition, on the side surface of the coil base 33, an out-bottom induction coil 35b is installed as a pot heating means for induction heating the side bottom surface of the pot 34. A heating substrate 37 for inductively heating the pan 34 by passing a high-frequency current through the in-bottom induction coil 35a and the out-of-bottom induction coil 35b is installed in a space constituted by the coil base 33 and the inner surface of the main body 31. In order to cool a heat generating component (not shown) installed on the heating substrate 37, a heat sink 36 is installed below the heating substrate 47.

  Reference numeral 38 denotes a speaker for voice guidance, which is installed on the speaker base 39 in the direction of the floor, is fixed by a speaker holder 40, and is set on the coil base 33. The speaker base 39 on which the speaker 38 is installed The coil base 33 is fastened together with the main body 31 and fixed.

  The installation of the speaker 38 in the direction of the floor surface is related to the usage environment unique to a cooker such as a rice cooker. For audio from the speaker 38, it may be installed in front of the side of the rice cooker, On the side of the rice cooker, there is a high possibility that water used for cooking will adhere to the speaker 38, and it is impossible to ensure the sound quality of the speaker 38. For this reason, the speaker 38 is set in the direction of the bottom surface of the rice cooker, where water hardly adheres to the speaker 38.

  The shape of the speaker base 39 will be described in more detail. The speaker base 39 is provided with a recess 39a for setting the speaker 38, and the speaker 38 is installed with the sound radiation direction side of the speaker 38 facing the speaker base 39 side. To do. Further, the speaker 38 is fixed by a speaker holder 40. The speaker holder 40 has one end inserted into the speaker holder fitting portion 39b of the speaker base 39 and the other end fixed to the speaker base 39 by screws. The speaker 38 and the speaker base 39 are fixed in a configuration in which the central magnet portion 38a is pressed.

  The speaker base 39 is provided with a large number of slits 39c so as to protect the diaphragm (not shown) of the speaker 38. Further, a slit 31a is provided at a position of the main body 31 opposite to the slit 39c provided on the speaker base 39, so that the sound from the speaker 38 is radiated efficiently.

Further, unlike the normal slit, the slit 31a of the main body 31 has a louver shape in order to prevent moisture, dust and oil smoke coming from the outside of the rice cooker from directly contacting the speaker 38. Furthermore, a predetermined distance between the speaker base 39 and the bottom surface of the main body 31 can be secured between the outside of the rice cooker and the speaker 38 by securing a certain distance in the vertical direction. 38 is double protected by the slit 31 a of the main body 31 and the slit 39 c of the speaker base 39. In addition, the main body 31 and the speaker base 39 are not configured so that the sound emission direction of the speaker 38 is a sealed space, but a gap is always provided between the main body 31 and the speaker base 39.

  As described above, according to the embodiment of the present reference, the speaker 38 is fixed to the speaker base 39, a certain distance is secured from the outer surface of the main body 31, and the slit 31 a of the main body 31 and the slit of the speaker base 39 are provided. Since the speaker 38 can be double protected with 39c, water adhesion to the speaker 38 can be reduced even when the rice cooker is placed and used on a sink with a lot of water. . Even if this double protection slips through and water enters and adheres to the speaker 38, a gap is provided between the speaker 38 and the main body 31, so that evaporation of water adhering to the speaker 38 is promoted. Can do it.

  In addition, in the kitchen, there are many foreign substances that degrade the sound quality of the speaker 38, such as fine dust and oily smoke, as well as moisture. Thus, the sound quality of the speaker 38 can be prevented from being lowered.

  In addition, the opening direction of the louver of the slit 31a provided in the main body 31 is opened in the forward direction in order to radiate the sound of the speaker 38 forward efficiently.

  In addition, the slit 39 c provided in the speaker base 39 also serves to protect the diaphragm of the speaker 39 when the speaker 38 is assembled.

  Further, if the speaker retainer 40 for fixing the speaker 38 is formed of an elastic material, the speaker 38 as a vibration part can be sufficiently fixed using the elastic force, and the sound quality due to the vibration of the speaker 38 can be improved. Decline can be prevented.

  Further, the speaker holder 40 can obtain the same effect by using the elastic force of the resin or the elastic force of the metal.

  In the above-described reference embodiment, one end of the speaker retainer 40 is inserted into the speaker retainer fitting portion 39b of the speaker base 39 and the other end is screwed to the speaker base 39. However, the elastic force of the speaker retainer 40 is used. By fixing the speaker 38, it is possible to fix both ends not by screws but also by locking, and suppress the vibration of the speaker 38.

  Further, if the speaker base 39 is provided with a rib (not shown) having a certain height on the outer periphery of the recess 39a for installing the speaker 38, the flatness of the speaker base 39 can be easily secured. The speaker 38 can be installed stably.

  Further, in the embodiment of the present reference, the configuration in which the speaker base 39 side is a normal slit and the slit 31a on the main body 31 side is formed in a louver shape, but the slit 39c on the speaker base 39 side is in a louver shape, Even if the slit 31a on the 31st side is a normal slit, the same effect can be obtained.

Further, the speaker 38 is fixed to the speaker base 39 with the speaker holder 40, and then the speaker base 39 is fixed inside the main body 31. However, the coil base 33 is provided with a speaker installation portion (not shown), A similar effect can be obtained by a configuration in which the speaker 38 is set in the speaker installation portion and fixed by the speaker base 39.

  Further, a bottom sensor 20 for detecting the temperature of the pan 34 is urged by a sensor spring (not shown) on the bottom surface of the pan 34 to detect the temperature of the pan 34 when cooking and keeping warm, and cooking in the pan 34. Control means (not shown) controls the object so as to reach an optimum temperature state.

  The outer lid 41 is made of synthetic resin, and the outer lid 41 is fitted to the outer lid cover 42. The outer lid 41 is connected to a hinge shaft (not shown) installed on the outer lid cover 42 with the upper frame 32. A hinge member 32a formed integrally with the rear portion is rotatably supported via a pin (not shown).

  The heat generating plate 43 is a detachable heat generating plate with a pot packing 44, and is attached to the outer lid cover 42 constituting the lower surface of the outer lid 41. The heating plate 43 is provided with a steam hole 43a for discharging steam during cooking to the outside of the main body, and is configured to communicate the space in the pan 34 with the outside. The outer lid cover 42 is provided with a lid induction heating coil 45 for inductively heating the heat generating plate 43. An aluminum lid reflector 46 is installed above the lid induction heating coil 45 to prevent radiation noise generated from the lid induction heating coil 45.

  In the heat generating plate 43, the heating amount of the heat generating plate 43 is determined by the magnitude of the current supplied to the lid induction heating coil 45, the number of turns of the lid induction heating coil 45, and the like, similarly to the heating principle of the electromagnetic cooker. Here, the number of turns of the lid induction heating coil 45 is proportional to the size of the inductance, and the inductance increases as the number of turns of the coil increases. Further, since the heat generation amount is proportional to the inductance, the heat generation amount at the portion where the lid induction heating coil 45 is installed increases.

  A lid sensor 47 is pressed against the heat generating plate 43 by a coil spring (not shown), and is used to control the temperature of the heat generating plate 43. The microcomputer 49 installed on the operation board 48 controls the energization rate for energizing the pan 34 and the heat generating plate 43 based on the temperature signals of the bottom sensor 20 and the lid sensor 47. A predetermined control program is memorized, and rice cooking and heat insulation are performed.

(Embodiment 1)
FIG. 3 shows a cross-sectional view of the rice cooker in the first embodiment of the present invention.

  In the present embodiment, as shown in FIG. 3, the speaker 38 is placed on the floor surface of the main body 31 and installed in the lower part of the pan 34, and other configurations are the same as those in the first reference implementation. Since it is the same as the form, the description of that part is omitted.

  A heat sink 36 for cooling a board component (not shown) installed on the heating substrate 37 is installed inside the main body 31. A fan motor 50 is attached to the heat sink 36 for cooling the heat sink 36 that has been heated by the substrate components to become a heat generating component. The fan motor 50 is attached in an inclined state so as to follow the shape of the main body 31.

By installing the speaker 38 below the pan 34 according to the above configuration, the pan 34 becomes high temperature for every rice cooking, so that moisture adhering to the speaker 38 can be evaporated by the heat of the pan 34. Furthermore, if the speaker 38 is installed on the wind flow path of the fan motor 50, the moisture attached to the speaker 38 can be evaporated more effectively by the wind of the fan motor 50 as well as the heat from the pot 34. In addition, the wind of the fan motor 50 is not only used for evaporation of moisture, but also allows foreign matters such as dust attached to the speaker 38 to be blown away.

  Moreover, in removing foreign substances such as moisture, it is not necessary to install the speaker 38 below the pan 34 and install the fan motor 50 inside the main body 31, and if either one is implemented, the same effect can be obtained. If both are implemented, the effect of removing foreign matters can be obtained more effectively.

  Further, a part of the speaker 38 may be installed below the pan 34, and the same effect can be obtained even if the entire speaker 38 is not completely installed on the lower surface of the pan 34.

  Further, the speaker 38 can be installed in the wind passage of the fan motor 50 to efficiently remove foreign matters, but the fan 38 can be installed without installing the speaker 38 directly in the wind passage. By installing the motor 50 inside the main body 31, the air inside the main body 31 can be circulated, so that foreign matter such as water and dust from the speaker 38 can be removed.

  As described above, the cooking device according to the present invention can be applied to various cooking appliances having a speaker for voice guidance because water and foreign matters are hardly attached to the speaker and easily removed.

Sectional drawing of the rice cooker in 1st Embodiment of reference of this invention (A) Plan view of speaker stand of rice cooker (b) AA sectional view of FIG. 2 (a) (c) BB sectional view of FIG. 2 (a) Sectional drawing of the rice cooker in the 1st Embodiment of this invention. The perspective view which shows the state which removed the outer shell cover of the conventional cooking appliance

31 Main body 31a Slit (Main body side)
34 Pan 35a Induction coil in the bottom (pan heating means)
35b Outer bottom induction coil (pot heating means)
36 Heat sink
38 Speaker 39 Speaker stand 39c Slit (Speaker stand side)

Claims (1)

A pan, a main body incorporating a pan heating means for heating the pan, a speaker provided in the main body, and a fan motor for cooling the heat generating components in the main body, and the flow of wind by the fan motor A cooker with at least part of the speaker inside.

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