TWI732477B - Warm wind generator - Google Patents

Abstract

A warm air generating device includes a fan, an air duct connected to the fan, and a temperature rise component. The fan provides an air flow. The air channel receives the air flow. The air guide channel through which the air flow can only be restricted, a heating element arranged in the air guide channel and heating the air flow passing through the air guide channel, a power switch electrically connected to the heating element, and a The heat dissipation element assembled with the power switch has a first heat dissipation portion for heat exchange with the power switch and a second heat dissipation portion extending from the first heat dissipation portion and located at the air inlet of the air guiding channel, The second heat dissipation part exchanges heat with the air flow that is about to enter the air guiding channel.

Description

Warm wind generator

The present invention relates to a warm air generating device, in particular to a warm air generating device that eliminates the need for active heat dissipation of an electronic control element and at the same time makes the wind flow that is about to enter an air guiding channel have a preliminary temperature before entering the air guiding channel.

According to investigations, the commercially available toilet seats provide users with the purpose of drying the cleaned parts after washing the human body in the toilet. Therefore, hot air drying devices are often installed on the toilet seats. The related patents of the existing hot air drying device are disclosed in JP Shikaihei 7-25070, JP JP 2014-134003, and JP JP 2012-225055. Take JP Shikaihei 7-25070 as an example. Although the patent discloses that the hot air drying device has a blower inside the housing, and sucks air from the suction port based on the rotation of the blower. During implementation, the air passes through the heater to achieve the heating effect, and is further blown from the outlet to the body parts. However, during actual operation of the hot air drying device, the heater must be additionally equipped with a heat dissipation element, or the heater can be actively dissipated. Furthermore, the conventional hot-air drying device can only use the heater to heat the air after it is generated, and the heater must have a relatively large power to quickly heat the air in a certain space.

The main purpose of the present invention is to solve the problem that the conventional device must additionally install a heat dissipating element for the heater or make the heater actively dissipate heat.

The secondary purpose of the present invention is to solve the problem that the conventional heater must have a relatively large power to heat the air quickly.

To achieve the above objective, the present invention provides a warm air generating device comprising a fan, an air duct connected to the fan, and a temperature rise assembly. The fan provides an air flow, the air duct receives the air flow, and the temperature rise assembly includes An air guiding channel arranged in the air duct and restricting the air flow from only passing therethrough, a heating element arranged in the air guiding channel and heating the air flow passing through the air guiding channel, and an electrical connection to the heating element And a heat dissipation element connected to the power switch. The heat dissipation element has a first heat dissipation portion for heat exchange with the power switch and a first heat dissipation portion extending from the first heat dissipation portion and located at the inlet of the air guiding channel. The second heat dissipation part in the wind, the second heat dissipation part exchanges heat with the wind flow that is about to enter the air guide channel.

In one embodiment, the air guide channel has a first extension direction, and the second heat dissipation portion has a second extension direction that is staggered with the first extension direction.

In one embodiment, the air guide channel is made of a thermally conductive material.

In one embodiment, the cross-sectional area of the air guiding channel at the air inlet is smaller than the cross-sectional area of the air guiding channel at the air outlet.

In one embodiment, the warm air generating device includes a housing, the housing includes a bearing part for providing the fan, an air duct forming part connected to the bearing part and forming the air duct, and a housing connected to the air duct. The channel forming part connects and provides the component receiving part in which the power switch is placed, a passage is formed between the air passage forming part and the component receiving part, and the second heat dissipation part of the heat dissipation element enters the passage through the passage Inside the air duct forming part.

In one embodiment, the temperature rising component includes a plurality of conductive wires, and each conductive wire is electrically connected to the power switch and the heating element through the via.

In one embodiment, the heat dissipation element has a mounting portion extending from the first heat dissipation portion and disposed in the element receiving portion.

In one embodiment, the warm air generating device has a temperature detecting element arranged at one end of the air guiding channel away from the fan to detect the temperature of the air flow when the air is discharged.

In one embodiment, the power switch is a three-way double-ended AC switch (Triode AC Semiconductor Switch, TRIAC for short).

According to the foregoing disclosure of the invention, compared with the conventional technology, the present invention has the following characteristics: the present invention provides the heat dissipation element with the second heat dissipation portion, and allows the second heat dissipation portion to extend to be located in the air duct where the wind enters. At the same time, the air flow first exchanges heat with the second heat dissipation part before entering the air guide channel for heating. In this way, the present invention eliminates the need for the power switch to actively dissipate heat, and at the same time allows the wind to enter the air guide channel The air flow inside has a preliminary temperature, so that when the air flow enters the air guiding channel, it can be quickly heated to a desired temperature.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings:

Please refer to FIGS. 1 to 5, the present invention provides a warm air generating device 10, the warm air generating device 10 is mounted on an electric control position of a toilet seat 100. The warm air generating device 10 includes a fan 11, an air duct 12 and a temperature rise component 13. To explain in detail, when the fan 11 starts, it sucks outside air and generates an air flow 111. The air duct 12 is connected to the fan 11 and is arranged at the outlet of the fan 11, and the air duct 12 is used to receive the air provided by the fan 11 The wind flow 111 guides the wind flow 111 to flow. In addition, the temperature rise component 13 is disposed on the air duct 12 and is located at the outlet of the fan 11. The temperature rise component 13 includes an air guide channel 131 arranged in the air duct 12, and an air guide channel 131 is arranged in the air guide channel 131. The inner heating element 132, a power switch 133 electrically connected to the heating element 132, and a heat dissipation element 134 combined with the power switch 133, wherein the air guide channel 131 is disposed facing the outlet of the fan 11, The air guiding channel 131 receives the air flow 111 from the fan 11 and restricts the air flow 111 to only pass therethrough. In one embodiment, the air guiding channel 131 has a smaller cross-sectional area at the inlet than the air guiding channel 131 at the outlet. The cross-sectional area of the wind. In addition, the heating element 132 is disposed in the air guiding channel 131, and the heating element 132 is electrically connected to the power switch 133. The heating element 132 is controlled by the power switch 133 to control the air flow entering the air guiding channel 131. 111 for heating. Further, the power switch 133 may be a three-way double-ended AC switch (Triode AC Semiconductor Switch, TRIAC for short). When the power switch 133 is controlled to activate the heating element 132, the power switch 133 will generate heat due to the operation, so the power switch 133 will dissipate heat through the heat dissipation element 134.

Continuing, please refer to FIGS. 1 to 5 again. The heat dissipating element 134 is connected to the power switch 133, and the heat dissipating element 134 is disposed between the fan 11 and the air guide channel 131. The heat dissipating element 134 includes a The first heat dissipation portion 135 connected to the power switch 133, and a second heat dissipation portion 136 extending from the first heat dissipation portion 135, wherein the first heat dissipation portion 135 is used for heat exchange with the power switch 133, and the first heat dissipation portion 135 is used to exchange heat with the power switch 133. The heat dissipating portion 135 contacts the heat transferred from the power switch 133 and is guided to the second heat dissipating portion 136. In an embodiment, the first heat dissipation portion 135 may be bent relative to the second heat dissipation portion 136. In addition, the second heat dissipation portion 136 extends to a position corresponding to the outlet of the fan 11 and is located at the inlet of the air duct 131.

Then, please refer to Figures 2 to 5. First, suppose that the fan 11 and the power switch 133 are controlled to start to operate. After the fan 11 is started, the air flow 111 is output to the air duct 12, and the power switch 133 is controlled so that the heating element 132 starts to generate heat. After the power switch 133 is activated, heat energy is also generated and transferred to the heat dissipation element 134. The air duct 12 guides the air flow 111 to the air inlet of the air guide channel 131, and makes the air flow 111 contact the second heat dissipation portion 136 before entering the air guide channel 131, so as to communicate with the second heat dissipation portion 136. One heat exchange, thereby causing the power switch 133 to be dissipated. After that, the air guide channel 131 receives the air flow 111 that has undergone the first heat exchange, and when the air flow 111 flows toward the air outlet, it is acted on by the heating element 132 to perform a second heat exchange, so that the air flow 111 is subjected to the second heat exchange. The wind flow 111 can have a suitable temperature when it is discharged from the warm wind generating device 10.

In summary, the present invention provides the heat dissipation element 134 with the second heat dissipation portion 136, and extends the second heat dissipation portion 136 to the air inlet of the air guiding channel 131, so that the air flow 111 enters the air guiding channel 131 first performs heat exchange with the second heat sink 136 before heating. In this way, the present invention eliminates the need for the power switch 133 to actively dissipate heat. At the same time, the air flow 111 that is about to enter the air guide channel 131 has a preliminary The temperature allows the air flow 111 to be quickly heated to a desired temperature when entering the air guiding channel 131.

In an embodiment, and please refer to FIGS. 2 to 5, the air guide channel 131 has at least one hole 137 on both sides, and the heating element 132 has at least one pair of lugs 138 that should be provided with the holes 137. The lugs The 138 is assembled in the hole 137 so that the heating element 132 can be stably disposed in the air guiding channel 131. Further, in an embodiment, the air guiding channel 131 can be made of a heat-conducting material, that is, the air guiding channel 131 receives the heat energy transferred by the heating element 132 when the heating element 132 heats up, so that it enters the In addition to heat exchange with the heating element 132, the air flow 111 in the air guiding channel 131 is also heated by the air guiding channel 131. On the other hand, the air guiding channel 131 has a first extending direction 139, and the second heat dissipation portion 136 has a second extending direction 140 staggered with the first extending direction 139, so that the air guiding channel 131 can receive the The air flow 111 from the second heat dissipation portion 136.

On the other hand, please refer to FIGS. 2 to 5 again. The warm air generating device 10 further includes a casing 15 which can be composed of two half-shells 151, which can be combined by buckling and other methods. Become. In addition, the housing 15 includes a supporting portion 152 for providing the setting of the fan 11, an air duct forming portion 153 connected to the supporting portion 152, and a duct forming portion 153 connected to the air duct forming portion 153 and providing the power switch 133 therein. Component placement section 154. Specifically, the supporting portion 152 is formed with an opening 155, and the fan 11 has an air inlet 112, and the opening 155 is arranged corresponding to the air inlet 112 to allow the fan 11 to extract external air and provide the air flow 111. In addition, the air duct forming part 153 is disposed on the side of the carrying part 152 facing the air guide channel 131 and used to form the air duct 12, and the end of the air duct forming part 153 is formed to discharge the air flow 111 to The outlet 121 outside the warm air generating device 10. In addition, the component receiving portion 154 is disposed on the side of the air duct forming portion 153 facing the supporting portion 152. The component receiving portion 154 provides the power switch 133 to be placed therein, and enables the heat dissipation component 134 to be disposed on the Between the fan 11 and the air guide channel 131, in more detail, a passage 156 is formed between the element receiving portion 154 and the air duct forming portion 153, and the passage 156 provides the second heat dissipation element 134 The heat dissipation portion 136 penetrates and extends into the air duct forming portion 153. In addition, in one embodiment, the temperature rising component 13 further includes a plurality of conductive wires 141, and each of the conductive wires 141 can also be electrically connected to the power switch 133 and the heating element 132 through the via 156.

Please refer to FIGS. 2 to 5 again. In one embodiment, the present invention is to enable the casing 15 to be assembled with the fan 11, the casing 15 has at least one notch 157 provided in the carrying portion 152, and the fan 11 There is at least one positioning block 113 corresponding to the notch 157, and the positioning block 113 is assembled in the notch 157 to position the fan 11. In addition, in order that the heat dissipation element 134 can be assembled with the power switch 133, the heat dissipation element 134 has a mounting portion 142 disposed in the component receiving portion 154, and the mounting portion 142 is extended from the first heat dissipation portion 135. In one embodiment, the extension direction of the mounting portion 142 intersects the extension direction of the first heat dissipation portion 135 and is parallel to the extension direction of the second heat dissipation portion 136.

2 and 5, in one embodiment, the warm air generating device 10 has a temperature detecting element 16 disposed at the outlet 121, and the temperature detecting element 16 is used to detect the air flow flowing out of the air guiding channel 131 111 for temperature detection. Further, the housing 15 has an assembly hole 158 provided at the end of the air duct forming part 153 and for the temperature detection component 16 to be assembled therein.

In summary, it is only a preferred embodiment of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, all equal changes and modifications made in accordance with the scope of the patent application of the present invention should still belong to the present invention. The scope of patent coverage.

100: toilet seat 10: Warm wind generator 11: Fan 111: Love 112: air inlet 113: positioning block 12: Wind tunnel 121: Exit 13: Temperature rise components 131: Air duct 132: heating element 133: Power switch 134: Heat Dissipation Components 135: The first heat sink 136: second heat sink 137: Broken Hole 138: Lug 139: The first extension direction 140: second extension direction 141: Conductive thread 142: Installation Department 15: shell 151: Half Shell 152: Bearing Department 153: Air duct forming part 154: Component Placement Department 155: open 156: Secret 157: Gap 158: Assembly hole 16: temperature detection parts

Figure 1 is a schematic diagram of an embodiment of the present invention assembled on a toilet seat. Figure 2 is an exploded schematic diagram (1) of the structure of an embodiment of the present invention. Figure 3 is an exploded schematic diagram (2) of the structure of an embodiment of the present invention. Figure 4 is a top view of part of the components of an embodiment of the present invention. Fig. 5 is a schematic diagram of an implementation of an embodiment of the present invention.

10: Warm wind generator

11: Fan

112: air inlet

113: positioning block

12: Wind tunnel

121: Exit

13: Temperature rise components

131: Air duct

132: heating element

133: Power switch

134: Heat Dissipation Components

135: The first heat sink

136: second heat sink

142: Installation Department

15: shell

151: Half Shell

157: Gap

16: temperature detection parts

Claims (6)

A warm wind generating device for a toilet seat is assembled at an electric control position of the toilet seat. The warm wind generating device comprises: a shell, including a bearing part, an air duct forming part connected with the bearing part, and a The component receiving part connected to the air duct forming part has an opening formed between the air duct forming part and the component receiving part; a fan is arranged on the carrying part and provides an air flow; An air duct forming part is formed and connected with the fan to receive the air flow; and a temperature rise component including an air guide channel made of heat-conducting material and arranged in the air duct and restricting the air flow to only pass through, A heating element arranged in the air guiding channel and heating the air flow passing through the air guiding channel, a power switch placed in the element receiving portion and electrically connected to the heating element, and a power switch assembly connected to the power switch The heat dissipation element has a first heat dissipation portion for heat exchange with the power switch, and a first heat dissipation portion that extends from the first heat dissipation portion and enters the air duct forming portion through the opening so as to be located at the wind inlet of the air duct The second heat dissipation portion, the second heat dissipation portion exchanges heat with the wind flow that is about to enter the air guiding channel, the air guiding channel has a first extension direction, and the second heat dissipation portion has a crossover with the first extension direction The second extension direction. The warm air generating device according to claim 1, wherein the cross-sectional area of the air guiding channel at the air inlet is smaller than the cross-sectional area of the air guiding channel at the air outlet. The warm wind generating device according to claim 1, wherein the temperature rising component includes a plurality of conductive wires, and each conductive wire is electrically connected to the power switch and the heating element through the via. The warm air generating device according to claim 1, wherein the heat dissipation element has There is a mounting part extending from the first heat dissipating part and arranged in the component receiving part. The warm air generating device according to claim 1, wherein the warm air generating device has a temperature detecting element arranged at one end of the air guiding channel away from the fan to detect the temperature of the air flow when the air is discharged. According to the warm wind generating device of claim 1, wherein the power switch is a three-way double-ended AC switch (Triode AC Semiconductor Switch, TRIAC for short).

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