JP-7854583-B2 - heating equipment

JP7854583B2JP 7854583 B2JP7854583 B2JP 7854583B2JP-7854583-B2

Inventors

石原大也
河本裕文
橋本卓也
水谷幸二郎

Assignees

パナソニックＩＰマネジメント株式会社

Dates

Publication Date: 20260507
Application Date: 20220829

Claims (8)

A first heating section and a first element unit that drives the first heating section, The first heat sink arranged in the first element unit, The second heating section, A second element unit that drives the second heating section, The second heat sink arranged in the second element unit, A fan for blowing air, A wind duct unit that forms the airflow direction from the aforementioned fan, The device comprises a housing that houses the first heating unit, the first element unit, the first heat sink, the second heating unit, the second element unit, the second heat sink, and the air passage unit, and has an exhaust port at the rear of the device. The aforementioned air passage unit is A first air passage that guides the air blown from the fan, and a second air passage that intersects the first air passage and extends toward the rear, The system includes a third air passage that intersects the first air passage and extends toward the rear, and is provided spaced apart from the fan relative to the second air passage , A heating device in which the first heat sink is arranged in the second air passage and the second heat sink is arranged in the third air passage, The first heating section comprises a first coil component, and the second heating section comprises a second coil component. A heating device characterized in that the second coil component is arranged in the second air passage and is provided downstream of the first heat sink in the direction of airflow from the fan .
Equipped with a rectifier that rectifies AC power and converts it to DC, The aforementioned air passage unit is The system includes a fourth air passage that intersects the first air passage and extends toward the rear, and is provided spaced apart from the fan relative to the third air passage, The heating device according to claim 1 , wherein the rectifier is arranged in the fourth air passage.
The heating device according to claim 2 , wherein the rectifier generates less heat than each of the first element unit and the second element unit.
The first coil component is arranged in the second air passage, and is provided downstream of the first heat sink in the airflow direction, and downstream of the second coil component in the airflow direction. The heating device according to claim 1 , wherein the first heat sink, the second coil component, and the first coil component are arranged in this order from the upstream side to the downstream side in the airflow direction of the second air passage.
The second air passage is provided branching off from the first air passage. The heating device according to claim 1 , wherein the third air passage is provided branching off from the first air passage at a point downstream in the airflow direction from the branching point of the second air passage in the first air passage.
The airflow unit has a first inner wall that branches the airflow in the first airflow path and guides it to the second airflow path, and a second inner wall provided downstream of the first inner wall in the direction of airflow that branches the airflow in the first airflow path and guides it to the third airflow path. The heating device according to claim 1, wherein the distance between the second inner wall in the first air passage and the inner surface facing the front side of the air passage unit is smaller than the distance between the first inner wall in the first air passage and the inner surface facing the front side of the air passage unit.
First heating section and The first element unit that drives the first heating section, The first heat sink arranged in the first element unit, The second heating section, A second element unit that drives the second heating section, The second heat sink arranged in the second element unit, A fan for blowing air, A wind duct unit that forms the airflow direction from the aforementioned fan, The device comprises a housing that houses the first heating unit, the first element unit, the first heat sink, the second heating unit, the second element unit, the second heat sink, and the air passage unit, and has an exhaust port at the rear of the device. The aforementioned air passage unit is A first air passage that guides the air blown from the fan, and a second air passage that intersects the first air passage and extends toward the rear, The system includes a third air passage that intersects the first air passage and extends toward the rear, and is provided spaced apart from the fan relative to the second air passage, A heating device in which the first heat sink is arranged in the second air passage and the second heat sink is arranged in the third air passage, The first heating section comprises a first coil component, and the second heating section comprises a second coil component. The distance between the first heating element and the fan is smaller than the distance between the second heating element and the fan. The first element unit of the first heating section, the first heat sink, and the first coil component are arranged in the second air passage. A heating device in which the second element unit and the second heat sink of the second heating section are arranged in the third airflow path, and the second coil component of the second heating section is arranged in the second airflow path.
First heating section and The first element unit that drives the first heating section, The first heat sink arranged in the first element unit, The second heating section, A second element unit that drives the second heating section, The second heat sink arranged in the second element unit, A fan for blowing air, A wind duct unit that forms the airflow direction from the aforementioned fan, The device comprises a housing that houses the first heating unit, the first element unit, the first heat sink, the second heating unit, the second element unit, the second heat sink, and the air passage unit, and has an exhaust port at the rear of the device. The aforementioned air passage unit is A first air passage that guides the air blown from the fan, and a second air passage that intersects the first air passage and extends toward the rear, The system includes a third air passage that intersects the first air passage and extends toward the rear, and is provided spaced apart from the fan relative to the second air passage, A heating device in which the first heat sink is arranged in the second air passage and the second heat sink is arranged in the third air passage, The first heating section comprises a first coil component, and the second heating section comprises a second coil component. The enclosure is provided with a grill inside, the fan is positioned on a different side of the enclosure from the grill, and the distance between the first heating element and the grill is greater than the distance between the second heating element and the grill. The first element unit of the first heating section, the first heat sink, and the first coil component are arranged in the second air passage. A heating device in which the second element unit and the second heat sink of the second heating section are arranged in the third airflow path, and the second coil component of the second heating section is arranged in the second airflow path.

Description

This disclosure relates to heating equipment. Patent Document 1 discloses a heating device for cooling multiple inverter boards. This heating device comprises an inverter board equipped with multiple heating coils and an inverter circuit that supplies alternating current to each heating coil, and a cooling intake fan for drawing in air from an intake port formed at the rear. According to this heating device, air drawn in by the intake fan through the intake port is directly blown onto the inverter board, cooling the heated inverter board. Japanese Patent Publication No. 2008-59985 Perspective view of the induction cooker in Embodiment 1Top view of the inside of an induction cooker in Embodiment 1Top view of the inside of an induction cooker in Embodiment 1Electrical configuration diagram of the inverter circuit section of the control board for the left and right coils in Embodiment 1Top view of the inside of an induction cooker in Embodiment 1Top view of the inside of an induction cooker in Embodiment 1 The embodiments will be described in detail below with reference to the drawings. However, unnecessary details may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. This is to avoid the following explanation becoming unnecessarily verbose and to facilitate understanding for those skilled in the art. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims. (Embodiment 1) Embodiment 1 will be described below with reference to Figures 1 to 6. [1-1. Structure] [1-1-1. Overall configuration of an induction cooktop] In the following text, the terms front, back, left, and right refer to the positional relationship of the device body relative to the front. In Figure 1, the induction cooktop consists of a top unit 1 and a main unit 2. The top unit 1 includes a glass plate 3, a frame 4, and an operating interface 5. The glass plate 3 is rectangular and made of heat-resistant glass such as crystallized glass. The glass plate 3 is placed on the top surface of the induction cooktop, and cooking containers such as pots are placed on its surface. The frame 4 is used to connect the glass plate 3 to the main unit 2. This frame 4 is made of metal and surrounds the outer periphery of the glass plate 3. Furthermore, the operating interface 5 is positioned in front of the top unit 1 and receives heating commands for the induction cooktop. This operating interface 5 can be appropriately selected from mechanical switches, electrostatic switches, touch switches, touch LCDs, etc. Referring further to Figure 2, the main unit 2 comprises an upper housing 6, a lower housing 7, a left coil unit 8 which is the second heating section, a right coil unit 9 which is the first heating section, a rear coil unit 10 which is the third heating section, a fan 11, control boards 12 for the left and right coils, a control board 13 for the rear coil, and an airflow unit 14. The upper housing 6 houses the left coil unit 8, the right coil unit 9, the rear coil unit 10, the fan 11, the control boards 12 for the left and right coils, the control board 13 for the rear coil, and the airflow unit 14. This upper housing 6 has a box-like shape with a hollow interior and is made of metal. On the other hand, the lower housing 7 also has a box-like shape with a hollow interior and is made of metal, and is fixed to the upper housing 6 with screws or the like. This lower housing 7 houses the grill unit 15 (Figure 1). The grill unit 15 is positioned biased to either the left or right side within the housing. In this embodiment, it is positioned biased to the left when viewed from the front in the drawing. In other words, the center of the lower housing 7 in the left-right direction is positioned to the left of the center of the IH cooker in the left-right direction. This grill unit 15 is equipped with a heater, which is used for heating and cooking. While the grill unit 15 in this embodiment is positioned off-center to the left when viewed from the front, it is not limited to this position; it may also be positioned off-center to the right when viewed from the front, or even in the central part of the housing when viewed from the front. The left coil unit 8, the right coil unit 9, and the rear coil unit 10 each heat the pot placed on the glass plate 3 by induction heating. The left coil unit 8 is positioned on the left side at the front when viewed from above. The right coil unit 9 is positioned on the right side at the front when viewed from above. The rear coil unit 10 is positioned behind the left coil unit 8 and the right coil unit 9 when viewed from above. The left coil unit 8, the right coil unit 9, and the rear coil unit 10 are each equipped with a coil, ferrite, a case to house the ferrite and coil