KR102492198B1 - Induction heating griddle cooling system - Google Patents

Abstract

The present invention discloses a griddle cooling device comprising: a griddle body; a partition wall; an air inlet; a first cooling pan; and an air outlet. The partition wall divides a cooling zone of the griddle body into a second cooling zone for dividing a strong voltage load side, and a first cooling zone for dividing a weak voltage load side. The air inlet is configured in the first cooling zone, cools external cooling air, and cools the first cooling zone. The first cooling pan is introduced through the air inlet, and introduces the cooling air for cooling the first cooling zone into the second cooling zone. The air outlet is provided in a back surface unit of the griddle body to discharge the cooling air, which is introduced into the second cooling zone by the first cooling fan and cools the strong voltage load, to the outside through a second cooling fan. The present invention can improve cooling efficiency.

Description

Griddle cooling system {Induction heating griddle cooling system}

The present invention relates to a cooling device for a griddle to increase cooling efficiency by forming a cooling passage from a relatively low-temperature low-voltage load side to a high-voltage load side in a griddle body.

A griddle (in particular, an IH (Induction Heating) griddle) is a type of cooking appliance whose upper surface is composed of a cooking surface. In general, a heating means such as a gas burner or heating wire is installed under a cooking plate with an open top. It is a typical cooking appliance used to cook by placing meat or vegetables on noodles, or making and cooking various currents. In particular, the electromagnetic induction heating type griddle using a hot wire as a heating means adopts a hot wire that is usually electrically heated to dissipate heat, and is widely used because it has the advantage of free and convenient temperature control. For example, the 'griddle' disclosed in Korean Registered Patent Publication No. 10-2205797 has a cooling fan that cools a generator connected to an induction heating coil (working coil), and uses air introduced from an air inlet at the bottom to cool the generator. It cools down, and the heat is discharged to the outside through a cooling fan. However, conventional griddles have a structural problem in that heat is brought into contact with the user because a discharge passage for discharging heat is located on the front of the product and discharged toward the operation unit. In addition, since the flow path inside the product passes through the generator that generates the most heat first, there is a structural problem in that the introduced air flows in a heated state and continuously increases the temperature inside the product.

Patent Document 1. Korean Registered Patent Publication No. 10-2205797 (Public Date January 21, 2021)

Patent Document 2. Domestic Patent Publication No. 10-2009-0058116 (published on June 9, 2009)

One of the technical problems to be solved by the present invention is to increase the cooling efficiency by forming a cooling passage from the low voltage load side at a relatively low temperature to the low voltage load in cooling the griddle body by introducing cooling air into the griddle body. there is

One of the technical problems to be solved by the present invention is to provide a cooling zone that minimizes the effect of heat generated from high-voltage load-side components on low-voltage load-side components.

One of the technical problems to be solved by the present invention is to provide an exhaust passage through which cooling air is smoothly exhausted to the outside of the griddle body in a state in which cooling zones partitioned in the griddle body are cooled with cooling air.

One of the technical problems to be solved by the present invention is to effectively block the inflow of wet steam or water from the bottom of the griddle body to the high voltage load side.

One of the technical problems to be solved by the present invention is to freely circulate air and effectively prevent condensation even in a poor environment in which the rear and left and right surfaces of the griddle body are blocked.

The above objects, according to the present invention, the griddle body; partition walls dividing the cooling zone of the griddle main body into a second cooling zone constituting a high-voltage load and a first cooling zone constituting a low-voltage load; an air inlet configured in the first cooling zone to cool the first cooling zone by introducing external cooling air; a first cooling fan for introducing cooling air introduced through the air inlet and cooling the first cooling zone into the second cooling zone; and an air outlet provided on the rear side of the griddle body to discharge the cooling air, which is introduced into the second cooling zone by the first cooling fan and cools the low-voltage load, to the outside through the second cooling fan. It can be achieved from a griddle cooling system.

According to an embodiment of the present invention, the air inlet may be configured by directly forming an air flow path at a lower end of the partition wall.

According to an embodiment of the present invention, the first cooling zone may include a manipulation unit, and the second cooling zone may include a working coil and a main substrate connected to the working coil.

According to an embodiment of the present invention, the air inlet of the first cooling zone may be configured to be positioned below the first cooling fan.

According to an embodiment of the present invention, the control unit may be disposed at a position facing the air inlet of the first cooling zone and the first cooling fan.

According to an embodiment of the present invention, the air outlet includes a vertical discharge hole and a horizontal discharge hole disposed below the vertical discharge hole, and the cooling air discharged via the second cooling zone passes through the vertical discharge hole. It may be configured to flow in the direction of the horizontal discharge hole.

According to an embodiment of the present invention, when the plurality of working coils are configured, the plurality of first cooling fans are configured to correspond to the working coils, and each of the first cooling fans is arranged to be located in the center of the griddle body. It can be.

The present invention has an effect of improving cooling efficiency by forming a cooling passage from a weak voltage load side at a relatively low temperature to a high voltage load side in cooling the griddle body by introducing cooling air into the griddle body.

In addition, the present invention prevents the heat generated from the high-voltage load-side parts in the griddle body from moving to the weak-voltage load side, thereby minimizing the thermal effect on the low-voltage load-side parts to prevent deterioration of the griddle electric parts and to enhance durability. It has the effect of extending life and improving product reliability.

In addition, in the present invention, the cooling air is smoothly exhausted to the outside of the griddle body in a state in which the cooling zones partitioned in the griddle body are cooled with cooling air, thereby minimizing the thermal effect of the electrical components due to residual heat and It has the effect of preventing deterioration, extending lifespan by strengthening durability, and improving product reliability.

In addition, the present invention effectively blocks the inflow of wet steam or water from the bottom of the griddle body to the high-voltage load side, thereby preventing durability degradation of electrical components, extending lifespan, and improving product reliability. .

In addition, the present invention has an effect of improving product reliability by inducing air circulation to be freely maintained even in a poor environment in which the rear and left and right surfaces of the griddle body are blocked and preventing dew condensation.

1 is an example showing the appearance of a griddle according to an embodiment of the present invention in a perspective view.
FIG. 2 is an example of a griddle cooling device in accordance with an embodiment of the present invention, in which a part of a griddle is cut and its appearance is shown in a perspective view in order to explain the griddle cooling device.
3 is an example showing a flow state of cooling air through a griddle cooling device according to an embodiment of the present invention.
4 is an example of an air outlet constituting a griddle cooling device according to an embodiment of the present invention.
Figure 5 (a) (b) is an example showing the air discharge port constituting the griddle cooling device according to an embodiment of the present invention in detail, (a) is the external shape of the air discharge duct forming the vertical discharge hole And, (b) is an example showing the external shape of the air discharge duct forming the horizontal discharge hole.
Figure 6 (a) (b) is an example of a preferred arrangement state of the cooling fan constituting the griddle cooling device according to an embodiment of the present invention, (a) is a two-hole type with two working coils is a cooling fan arrangement state, and (b) is an example of a cooling fan arrangement state in a three-hole type with three working coils.

Hereinafter, a 'cooling device of a griddle' according to an embodiment of the present invention will be described.

Looking at the existing griddle cooling device, a cooling fan for cooling a generator connected to an induction heating coil (working coil) is provided, the generator is cooled with air introduced from an air inlet at the bottom, and hot air is discharged to the outside through the cooling fan. is meant to be discharged.

However, in the existing griddle cooling device, since the exhaust passage for discharging heat is located on the front side of the product and discharged toward the control unit, there is a problem in that the product reliability is lowered by structurally allowing hot heat to come into contact with the user, and the flow path inside the product Since the generator is designed to pass through the generator that generates the most heat first, the introduced air flows in a heated state, structurally continuously increasing the temperature inside the product, thereby reducing product durability and reliability.

Accordingly, the present invention, in cooling the griddle body by introducing cooling air into the griddle body, forms a cooling passage from the weak voltage load side at a relatively low temperature to the high voltage load side to structurally improve the cooling efficiency. presented

In addition, the present invention prevents the heat generated from the high-voltage load-side parts in the griddle body from moving to the weak-voltage load side, thereby minimizing the thermal effect on the low-voltage load-side parts to prevent deterioration of the griddle electric parts and to enhance durability. It is proposed to extend the life span and thereby improve product reliability.

In addition, in the present invention, the cooling air is smoothly exhausted to the outside of the griddle body in a state in which the cooling zones partitioned in the griddle body are cooled with cooling air, thereby minimizing the thermal effect of the electrical components due to residual heat and It is proposed to prevent deterioration, extend lifespan by strengthening durability, and improve product reliability.

In addition, the present invention effectively blocks the inflow of wet steam or water from the bottom of the griddle body to the high-voltage load side, thereby preventing durability degradation of electrical components, extending lifespan, and improving product reliability Suggested do.

In addition, the present invention is proposed to induce air circulation to be freely maintained even in a poor environment in which the rear and left and right surfaces of the griddle body are blocked, prevent dew condensation, and improve product reliability.

As shown in FIGS. 1 to 4, the griddle cooling device according to the present invention uses DC voltage as the second cooling zone 130 on the step-down load side using AC220V as a voltage in the griddle body 110. It is configured to divide the inside of the griddle body 110 by the partition wall 140 so that the low voltage load side to be divided into the first cooling zone 120, respectively.

In addition, the external cooling air (a1) is introduced through the air inlet 150 of the first cooling zone 120 to cool the first cooling zone 120, and then the second cooling fan 160 by the first cooling fan 160. It is configured to flow into the cooling zone 130 to cool the lower voltage load side, and then be guided to the air outlet 180 by the second cooling fan 170 and discharged to the rear side of the griddle body 110.

The griddle cooling device according to the present invention will be described in more detail with reference to FIGS. 1 to 4.

1 is an example showing the appearance of a griddle according to an embodiment of the present invention in a perspective view. FIG. 2 is an example of a griddle cooling device according to an embodiment of the present invention, in which a part of the griddle is cut away and the exterior is shown in a perspective view to explain the griddle cooling device. 3 is an example showing a flow state of cooling air through a griddle cooling device according to an embodiment of the present invention. 4 is an example of an air outlet constituting a griddle cooling device according to an embodiment of the present invention.

In the griddle cooling device according to the present invention, the griddle main body 110 constituting the griddle 100, the second cooling zone 130 separating the cooling zone of the griddle main body 110 from the lower voltage load side, and It may be configured to include a partition wall 140 partitioned so as to be divided into the first cooling zone 120 that divides the weak voltage load side.

And, it is configured in the first cooling zone 120 may be configured to include an air inlet 150 for cooling the first cooling zone 120 by introducing the external cooling air (a1).

And, it may be configured to include a first cooling fan 160 for introducing the cooling air introduced through the air inlet 150 to cool the first cooling zone 120 back into the second cooling zone 130.

And, the griddle body 110 in order to discharge the cooling air introduced into the second cooling zone 130 by the first cooling fan 160 and cooling the lower voltage load side to the outside through the second cooling fan 170. It may be configured to include an air outlet 180 disposed on the rear side of the.

In addition, the air inlet 150 may be formed directly at the lower end of the partition wall 140 dividing and dividing the first cooling zone 120 and the second cooling zone 130 to form an air inlet passage.

In addition, the first cooling zone 120 includes a manipulation unit 111, and the second cooling zone 130 includes a working coil 112 and a main substrate 113 connected to the working coil 112, respectively. can

Here, in the first cooling zone 120, as shown in FIGS. 2 to 4, after first cooling the operation unit 111, which is a low voltage load with relatively little overheating, the cooling air a1 is a low voltage load. Flows into the assembled second cooling zone 130, where the second cooling zone 130 cools the main board 113 including the control PCB and the heat sink including the working coil 112 and the inverter PCB. It is discharged to the outside through the air outlet 180.

Therefore, by first cooling the low thermal load side divided into the first cooling zone 120, overheating of the control unit 111 can be effectively prevented, and the outside air passes through the first cooling zone 120 in a heated state. Since it flows into the second cooling zone 130, it flows into the second cooling zone 130 in a state in which the relative humidity is lowered, so that cooling air having a low relative humidity can be introduced into the second cooling zone 130, thereby reducing voltage. It is possible to effectively protect the electrical components on the load side.

In addition, it may be preferable to arrange the air inlet 150 of the first cooling zone 120 below the first cooling fan 160 . In this case, as shown in FIG. 3 , the cooling air introduced by driving the first cooling fan 160 first contacts the control unit 111, changes its flow direction to an upward airflow, passes through the partition wall 140, and It can smoothly flow toward the electrical components on the side of the lower voltage load of the cooling zone 130 .

In addition, the control unit 111 may be preferably configured at a position facing the air inlet 150 and the first cooling fan 160 of the first cooling zone 120 . In this case, as shown in FIG. 3 , the cooling air introduced by driving the first cooling fan 160 first contacts the control unit 111, changes its flow direction to an upward airflow, passes through the partition wall 140, and It can smoothly flow toward the electrical components on the side of the lower voltage load of the cooling zone 130 .

In addition, when the operation unit 111 is configured at a position facing the air inlet 150 and the first cooling fan 160 of the first cooling zone 120, the air under the griddle body 110 passes through the air inlet ( 150), wet steam or water generated in the cooking chamber may flow in, which may flow into the low-voltage load side. By forming an air flow path as much as possible, it is possible to obtain a significant effect of preventing the operation unit 111 from malfunctioning first when the cooling air is abnormal.

Figure 5 (a) (b) is an example showing the air discharge port constituting the griddle cooling device according to an embodiment of the present invention in detail, (a) is the external shape of the air discharge duct forming the vertical discharge hole And, (b) is an example showing the external shape of the air discharge duct forming the horizontal discharge hole.

According to the present invention, the air outlet 180 is configured to include a vertical discharge hole 181 and a horizontal discharge hole 182 disposed below the vertical discharge hole 181, as shown in FIG. It may be preferable to configure the exhaust air (a2) to flow in the direction toward the horizontal discharge hole 182 via the vertical discharge hole 181.

As shown in FIG. 5, when the air outlet 180 is configured, even if the rear surface of the griddle body 110 is blocked, the exhaust air a2 discharged through the vertical discharge hole 181 is discharged through the horizontal discharge hole 182. Through this, an exhaust flow path is formed to be discharged in the lower direction of the griddle body 110, and the installability is improved, and when the hot air is discharged, the condensation generated when it comes into contact with the cold air passes through the vertical discharge hole 181. Since it flows through the horizontal discharge hole 182, it is possible to effectively block condensation from entering the inside of the griddle body 110.

Figure 6 (a) (b) is an example of a preferred arrangement state of the cooling fan constituting the griddle cooling device according to an embodiment of the present invention, (a) is a two-hole type with two working coils is a cooling fan arrangement state, and (b) is an example of a cooling fan arrangement state in a three-hole type with three working coils.

According to the present invention, the position of the first cooling fan 160 constituting the griddle cooling device is as shown in FIG. 6, when a plurality of working coils 112 are configured, the first cooling fan 160 is It may be preferable to configure a plurality of coils 112 to correspond to each other, but to arrange each of the first cooling fans 160 so as to be located in the center of the griddle body 110 .

That is, a grid of a type in which a plurality of working coils 112 such as 2 as shown in (a) of FIG. 6 or 3 as shown in (b) of FIG. 6 is configured, and When the first cooling fan 160 is disposed in the central portion, this may be an advantageous arrangement for preventing water from entering the left and right or lower portions of the griddle body 110 .

As described above, according to the present invention, in cooling the griddle body by introducing cooling air into the griddle body, the cooling efficiency can be structurally improved by forming a cooling passage from the weak voltage load side at a relatively low temperature to the high voltage load side. There is an advantage to being

In addition, in the present invention, the heat generated from the high-voltage load-side components in the griddle body is conducted to the weak-voltage load side, thereby minimizing the thermal effect on the low-voltage load-side components to prevent deterioration of the griddle electrical components and to improve the lifespan by enhancing durability. extension, and through this, there is an advantage of improving product reliability.

In addition, in the present invention, the cooling air is smoothly exhausted to the outside of the griddle body in a state in which the cooling zones partitioned in the griddle body are cooled with cooling air, thereby minimizing the thermal effect of the electrical components due to residual heat and It has the advantage of preventing deterioration, extending lifespan by enhancing durability, and improving product reliability.

In addition, the present invention effectively blocks the inflow of wet steam or water from the bottom of the griddle body to the high-voltage load side, thereby preventing durability degradation of electrical components, extending lifespan, and improving product reliability Advantages there is

In addition, the present invention has the advantage of improving product reliability by inducing free air circulation and preventing condensation even in a poor environment in which the rear and left and right surfaces of the griddle body are blocked.

As described above, the present invention has been described with reference to an embodiment shown in the drawings, but is not limited to the embodiment, and can be practiced by modifying and transforming within the scope of not departing from the gist of the present invention, and modifications and variations have been made It is included in the technical idea of the present invention.

100: griddle 110: griddle body
111: control unit 112: working coil
113: main board 120: first cooling zone
130: second cooling zone 140: bulkhead
150: air inlet 160: first cooling fan
170: second cooling fan 180: air outlet
181: vertical discharge hole 182: horizontal discharge hole

Claims (7)

griddle body; partition walls dividing the cooling zone of the griddle main body into a second cooling zone dividing a high voltage load side and a first cooling zone dividing a low voltage load side; an air inlet configured in the first cooling zone to cool the first cooling zone by introducing external cooling air; a first cooling fan for introducing cooling air introduced through the air inlet and cooling the first cooling zone into the second cooling zone; and an air outlet provided on the rear side of the griddle body to discharge the cooling air, which is introduced into the second cooling zone by the first cooling fan and cools the low-voltage load, to the outside through the second cooling fan. The air outlet includes a vertical discharge hole and a horizontal discharge hole disposed below the vertical discharge hole, and the cooling air discharged through the second cooling zone passes through the vertical discharge hole to the horizontal discharge hole. Griddle cooling device, characterized in that configured to flow in the direction. According to claim 1,
The air inlet is a griddle cooling device, characterized in that formed at the lower end of the partition wall. According to claim 1,
The first cooling zone includes a manipulation unit, and the second cooling zone includes a working coil and a main substrate connected to the working coil. According to claim 1,
Griddle cooling device, characterized in that the air inlet of the first cooling zone is configured in the lower part of the first cooling fan. According to claim 3,
The griddle cooling device, characterized in that the control unit is disposed at a position facing the air inlet of the first cooling zone and the first cooling fan. delete According to claim 3,
When the working coil is composed of a plurality, the first cooling fan is composed of a plurality corresponding to the working coil, and each of the first cooling fans is arranged to be located in the center of the griddle body. .

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