Heater of steam iron

Abstract

The utility model relates to a heater of a steam iron, which comprises a heating main body and a water injection pipe, the heating main body is provided with a water inlet and a water storage evaporation cavity, the water storage evaporation cavity is provided with a channel part extending to the water inlet, and the water inlet comprises a first water inlet and a second water inlet. The channel part further communicates with the first steam channels on the two sides through the first water inlet and the second water inlet correspondingly. A mounting groove is formed in the upper surface of the top wall of the water storage evaporation cavity and provided with a temperature controller. The top wall of the water storage evaporation cavity is a part of the heating main body, the temperature controller is arranged in the mounting groove in the top wall, and the temperature controller can sense the temperature change at the first time, such as the temperature change before steam generation and the temperature change after steam generation, so that the temperature of a steam generation source is directly monitored, and the temperature of the steam generation source can be effectively controlled. The temperature condition in the steam generation process is fed back more timely and accurately, so that the heater is better controlled, and the heat utilization rate of the heater is improved.

Description

Technical Field

[0001] The utility model relates to the field of steam irons, in particular to a heater for a steam iron. Background Art

[0002] A steam iron is a household appliance that converts electrical energy into thermal energy and uses a continuous spray of high-temperature and high-pressure steam to iron clothes. For clothes that are wrinkled after washing, high-temperature steam is used to soften the clothing fibers, and then the clothes are restored to flatness after ironing with the high-temperature ironing board of the steam iron.

[0003] In order to increase the steam output and improve the heating efficiency of the steam iron, the heater structure of the existing steam iron has been improved. For example, the heating steam outlet structure of a steam iron disclosed in Chinese patent application number CN202320305622.X includes a heating body, a cover plate fixed on the heating body, and a steam outlet panel. Two channels are formed between the heating body and the cover plate. Each channel includes a preheating section, a heating section, and a steam section. The cover plate is provided with water inlets on both sides of the preheating section corresponding to the preheating section, and water flows into the preheating section. It can be seen that the preheating section is used as a source of steam generation. Liquid water is heated and converted into gas at the preheating section, and then passes through a complex steam channel to improve the steam conversion efficiency. In addition, in the above-mentioned prior art solution, a temperature controller is provided on the cover plate away from the water inlet to monitor the temperature in real time and control the heating switch state of the heating element.

[0004] The steam iron with the above structure has the following disadvantages: the temperature controller is far away from the preheating section and does not directly monitor the temperature of the steam source, so it is impossible to timely and accurately feedback the temperature change of the steam generation process. Therefore, it is necessary to develop a new steam iron heater that can capture the temperature change of the steam generation process in the first place. Utility Model Content

[0005] In order to solve the shortcomings of temperature monitoring of the heater of the existing steam iron, the utility model provides a heater of the steam iron.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heater of a steam iron comprises a heating body and a water injection pipe, wherein the heating body is provided with a water inlet, the water injection pipe is connected to the water inlet, first steam channels are provided on both sides of the upper surface of the heating body, the heating body is provided with a water storage evaporation chamber, the water storage evaporation chamber is provided with a channel portion extending to the water inlet, the water inlet comprises a first water inlet and a second water inlet, the channel portion is also connected to the first steam channels on both sides through the first water inlet and the second water inlet respectively; an installation groove is provided on the upper surface of the top wall of the water storage evaporation chamber, the installation groove is provided with a temperature controller, and the temperature controller is used to monitor the temperature of the water storage evaporation chamber located directly below it.

[0008] By adopting the above technical scheme, the first water inlet and the second water inlet are connected to the same water storage evaporation chamber, and the water injection pipe injects liquid water into the water storage evaporation chamber through the first water inlet or the second water inlet; after the liquid water is heated in the water storage evaporation chamber and converted into gaseous water, the steam flows from the channel portion to the first water inlet and the second water inlet, and respectively enters the first steam channels on both sides, thereby outputting the steam; the top wall of the water storage evaporation chamber is a part of the heating body, and as the heating body is heated up, the temperature of the top wall of the water storage evaporation chamber also changes, and as the steam is generated in the water storage evaporation chamber, the temperature of the top wall further changes, and the temperature controller on the upper surface of the top wall can sense the temperature change at the first time, thereby timely and accurately feeding back the temperature of the steam source.

[0009] As a preferred technical solution of the utility model, the lower surface of the water injection pipe is provided with two water outlets, and the two water outlets are respectively connected to the first water inlet and the second water inlet; the lower surface of the water injection pipe is also provided with a slot, and the slot is located between the two water outlets, and a partition is provided between the first water inlet and the second water inlet, and the slot is plugged into the partition so that the two water outlets are respectively connected to the first water inlet and the second water inlet.

[0010] As a preferred technical solution of the utility model, a water inlet guide surface is provided on the side of the water inlet, and the water outlet of the water injection pipe is located above the water inlet guide surface, so that the water outlet of the water injection pipe falls on the water inlet guide surface and then flows into the water storage evaporation chamber.

[0011] As a preferred technical solution of the utility model, heating tubes are embedded on both sides of the heating body, and the first steam channel is arranged along the tube body of the heating tube, first extending from one end of the heating body to the other end along the upper surface of the heating tube, and then returning to the side of the water inlet along the inner side of the heating tube.

[0012] Furthermore, a second steam channel is provided on the lower surface of the heating body, and a first connecting port is provided next to the water inlet. The second steam channel is connected to the first steam channel through the first connecting port; the first steam channel and the second steam channel are respectively located on the upper and lower sides of the heating tube.

[0013] Furthermore, a third steam channel is provided on the upper surface of the heating body and between the first steam channels on both sides, a second connecting port is provided at one end of the third steam channel away from the water storage evaporation chamber, and the third steam channel is connected to the second steam channel through the second connecting port.

[0014] Furthermore, the third steam channel includes two outer channels and one inner channel arranged in parallel, one end of the two outer channels is connected to the second steam channel through the second connecting port, and the other end of the two outer channels is connected to the inner channel.

[0015] Furthermore, the inner channel is provided with a plurality of steam outlets, and the lower surface of the heating body is provided with a fourth steam channel, and the fourth steam channel is connected with the inner channel through the steam outlets.

[0016] Furthermore, the fourth steam channel extends from the third steam channel to the water storage evaporation chamber, and a cavity partition is provided between the water storage evaporation chamber and the fourth steam channel.

[0017] As a preferred technical solution of the utility model, it also includes a cover plate and an ironing base plate, the cover plate is fixedly arranged above the heating body, and the ironing base plate is fixedly arranged below the heating body; the ironing base plate is provided with a plurality of steam columns corresponding to the fourth steam channel of the heating body, and the plurality of steam columns are staggered with the plurality of steam outlets on the heating body.

[0018] The utility model according to the above scheme has the following beneficial effects:

[0019] The top wall of the water storage evaporation chamber of the utility model is formed by the heating body arching upward, so the top wall of the water storage evaporation chamber is a part of the heating body, and the upper surface of the top wall is provided with a mounting groove, and the mounting groove is provided with a temperature controller, and the temperature controller can monitor the temperature of the water storage evaporation chamber located directly below it. As the heating body is heated, the temperature of the top wall of the water storage evaporation chamber also changes, and the temperature change process can be detected by the temperature controller; after the heating body is heated for a certain period of time, steam is generated in the water storage evaporation chamber, and the temperature of the top wall of the water storage evaporation chamber further changes, and the temperature controller can also sense the temperature change at the first time; therefore, the utility model directly monitors the temperature of the steam generation source, and timely and accurately feeds back the temperature of the steam generation process by detecting the temperature of the water storage evaporation chamber, so as to better control the heater and improve the heat utilization rate of the heater;

[0020] The top wall of the water storage evaporation chamber provides a larger sensing area for the temperature controller, and the temperature sensing sensitivity is higher, further improving the accuracy of temperature monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural exploded diagram of the utility model;

[0023] Figure 3 It is a structural cross-sectional view of the utility model;

[0024] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the upper surface structure of the heating body;

[0026] Figure 6 It is a schematic diagram of the lower surface structure of the heating body;

[0027] Figure 7 It is a structural schematic diagram of the water injection pipe;

[0028] Figure 8 This is the assembly drawing of the water injection pipe and the heating body.

[0029] In the figure,

[0030] 1. Heating body; 11. First steam channel; 12. Second steam channel; 13. Third steam channel; 131. Steam outlet; 14. Fourth steam channel; 15. Water storage evaporation chamber; 151. Channel portion; 152. First water inlet; 153. Second water inlet; 154. Baffle; 155. Mounting groove; 156. Water inlet guide surface; 157. Cavity baffle; 16. First connection port; 17. Second connection port;

[0031] 2. water injection pipe; 21. water outlet; 22. slot;

[0032] 3. Cover plate;

[0033] 4. Ironing base plate; 41. Steam column;

[0034] 5. Thermostat;

[0035] 6. Heating tube. DETAILED DESCRIPTION

[0036] In order to better understand the purpose, technical solution and technical effect of the utility model, the utility model is further explained in conjunction with the drawings and embodiments below. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

[0037] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may also be a central element, and when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time.

[0038] The indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when used, or the orientation or position relationship commonly understood by technical personnel in this field, or the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] like Figure 1 , Figure 3 and Figure 4 As shown, a heater of a steam iron comprises a heating body 1 and a water injection pipe 2. The heating body 1 is provided with a water inlet, and the water injection pipe 2 is connected to the water inlet. An external water source is input through the water injection pipe 2 and provides water to the heating body 1. The heating body 1 is provided with a water storage evaporation chamber 15, and the water storage evaporation chamber 15 is provided with a channel portion 151 extending to the water inlet. The water inlet comprises a first water inlet 152 and a second water inlet 153. The first water inlet 152 and the second water inlet 153 are both connected to the channel portion 151, and are both connected to the same water storage evaporation chamber 15 through the channel portion 151. The water injection pipe 2 injects liquid water into the water storage evaporation chamber 15 through either the first water inlet 152 or the second water inlet 153. When the liquid water in the water storage evaporation chamber 15 is vaporized into steam, it is also output through the first water inlet 152 and the second water inlet 153, respectively. Therefore, the first water inlet 152 and the second water inlet 153 are both the inlet of the water source and the outlet of the steam.

[0040] like Figure 8As shown, it should be noted that, although the two water outlets 21 of the water injection pipe 2 are respectively connected to the first water inlet 152 and the second water inlet 153, the water injection pipe 2 does not block the first water inlet 152 and the second water inlet 153. The first water inlet 152 and the second water inlet 153 have larger diameters and a gap is left between them and the water injection pipe 2, and steam can still be output from the gap between the first water inlet 152 and the second water inlet 153.

[0041] First steam channels 11 are provided on both sides of the upper surface of the heating body 1, and the channel portion 151 is connected to the first steam channels 11 on both sides through the first water inlet 152 and the second water inlet 153 respectively; the steam output from the water storage evaporation chamber 15 is divided into two paths, one path of steam is transported to the first steam channel 11 on one side through the first water inlet 152, and the other path of steam is transported to the first steam channel 11 on the other side through the second water inlet 153.

[0042] In the present invention, a mounting groove 155 is provided on the upper surface of the top wall of the water storage evaporation chamber 15, and a thermostat 5 is provided on the mounting groove 155. The thermostat 5 is electrically connected to the heating tube 6 of the heating body 1, and controls the working state of the heating tube 6 by comparing the monitored temperature value with the set temperature, thereby controlling the temperature of the heating body 1. The top wall of the water storage evaporation chamber 15 is formed by the heating body arching upward, so the top wall of the water storage evaporation chamber 15 is a part of the heating body 1. As the heating body 1 heats up, the top wall temperature of the water storage evaporation chamber 15 also changes, and the temperature change process can also be detected by the thermostat 5. During the continuous heating process of the heating body 1, steam is generated in the water storage evaporation chamber 15, and the top wall temperature of the water storage evaporation chamber 15 further changes. The thermostat 5 can also sense the temperature change in the first time, thereby timely and accurately feeding back the temperature of the steam source. It can be seen that the temperature controller 5 can monitor the temperature of the water storage evaporation chamber 15 located directly below it, including the temperature changes before steam generation and the temperature changes after steam generation, and timely and accurately feedback the temperature conditions of the steam generation process to better control the heater and improve the thermal utilization rate of the heater.

[0043] The top wall of the water storage evaporation chamber 15 provides a large sensing area for the temperature controller 5, and the temperature sensing sensitivity is high, which further improves the accuracy of temperature monitoring. In addition, the utility model directly monitors the temperature of the steam generation source and can also improve the safety of product use. For example, when the water volume of the steam source is insufficient and close to dry burning, the top wall temperature of the water storage evaporation chamber 15 increases sharply, and the temperature controller 5 can also capture the temperature increase in the first time and send a corresponding signal to prevent the steam iron from burning.

[0044] like Figure 7As shown, two water outlets 21 are provided on the lower surface of the water injection pipe 2, and the two water outlets 21 are respectively connected to the first water inlet 152 and the second water inlet 153. Since the first water inlet 152 and the second water inlet 153 have larger diameters, a gap is left between each water inlet and the water injection pipe 2, and the water injection pipe 2 does not block the first water inlet 152 and the second water inlet 153, thereby ensuring that the steam generated in the water storage evaporation chamber 15 is smoothly output from the first water inlet 152 and the second water inlet 153.

[0045] The lower surface of the water injection pipe 2 is also provided with a slot 22, which is located between the two water outlets 21, and a partition 154 is provided between the first water inlet 152 and the second water inlet 153 of the heating body. The slot 22 is plugged into the partition 154 and the two water outlets 21 are respectively connected to the first water inlet 152 and the second water inlet 153. The water injection pipe 2 is fixed at the water inlet of the heating body 1 through the slot 22, so that the installation of the water injection pipe 2 is more stable, and its water outlet 21 is vertically downward, and water flows smoothly into the water inlet.

[0046] like Figure 3 and Figure 8 As shown, the water injection pipe 2 does not inject water directly into the center of the water inlet, but drops water on the water inlet guide surface 156 beside the water inlet, and the water inlet guide surface 156 is formed by the side wall beside the water inlet. When the water falls on the side wall, it flows into the channel part 151 along the wall surface and enters the water storage evaporation chamber 15, so that splashing water can be avoided during the water injection process.

[0047] like Figure 2 As shown, the heating body 1 also includes a cover plate 3 and an ironing base plate 4. The cover plate 3 is fixedly arranged above the heating body 1, and the ironing base plate 4 is fixedly arranged below the heating body 1. The cover plate 3 is provided with openings at positions corresponding to the water injection pipe 2 and the thermostat 5. The head of the water injection pipe 2 is larger than the corresponding opening, and the smaller bottom passes through the cover plate 3, while the top is fixed on the cover plate 3. The installation groove 155 of the heating body 1 passes through the opening of the thermostat 5 corresponding to the cover plate 3 from bottom to top, so that the thermostat 5 is placed in the installation groove 155 of the heating body 1, and the temperature-sensitive bottom surface of the thermostat 5 directly contacts the top wall of the water storage evaporation chamber 15, thereby improving the accuracy of temperature monitoring of the water storage evaporation chamber 15.

[0048] like Figure 2 and Figure 5As shown, in the utility model, the heating tube 6 of the heater is U-shaped, and the heating tube 6 is embedded inside the heating body 1 along the side of the heating body 1, and the two power connection ends pass through the heating body 1 from the end away from the water inlet. The first steam channel 11 is provided on both sides of the upper surface of the heating body 1. The first steam channel 11 is arranged along the tube body of the heating tube 6, first extending from one end of the heating body 1 to the other end along the upper surface of the heating tube 6, and then returning to the side of the water inlet along the inner side of the heating tube 6. In this way, the steam generated by the water storage evaporation chamber 15 flows from one end to the other end on the upper surface of the heating body 1 along the outer heating tube 6, and then returns, and is fully heated in the first steam channel 11 close to the heating tube 6, thereby improving the steam effect.

[0049] A first connection port 16 is provided beside the water inlet, and the first connection port 16 passes through the heating body 1 from top to bottom. A second steam channel 12 is provided on the lower surface of the heating body 1, and the first connection port 16 connects the first steam channel 11 and the second steam channel 12. The steam returning to the side of the water inlet along the first steam channel 11 can enter the second steam channel 12 through the first connection port 16.

[0050] like Figure 6 As shown, the second steam channel 12 has only one channel, and the first steam channel 11 is divided into two bidirectional channels by a baffle. The first steam channel 11 and the second steam channel 12 are respectively located at the upper and lower sides of the heating tube 6, and the width of the second steam channel 12 is larger than that of the first steam channel 11, and the flow rate is slowed down, and the heating tube 6 is heated again below. The steam in the second steam channel 12 flows from one end near the water inlet to the other end, further improving the gasification effect and increasing the heat utilization rate.

[0051] like Figure 5 As shown, a second connection port 17 is provided at one end of the heating body 1 away from the first connection port 16. The second connection port 17 also penetrates the heating body 1 from top to bottom, and the second connection port 17 is a large U-shaped opening, connecting the second steam channels 12 on both sides. The steam of the second steam channel 12 flows to the second connection port 17 and then returns to the upper surface of the heating body 1. A third steam channel 13 is provided on the upper surface of the heating body 1 and between the first steam channels 11 on both sides. The third steam channel 13 is connected to the second steam channel 12 through the second connection port 17. The third steam channel 13 includes two outer channels and one inner channel arranged in parallel. One end of the two outer channels is connected to the second connection port 17, and the other end of the two outer channels is connected to the inner channel; the inner channel and the two outer channels are provided with baffles, and the steam flow direction is: the steam of the second steam channel 12 enters the outer channels on both sides through the second connection port 17, and comes to the upper surface of the heating body 1, and the two steam flows along the two outer channels and converges into the inner channel. The inner channel is provided with a plurality of steam outlets 131 , and the steam flows out through the plurality of steam outlets 131 of the inner channel.

[0052] like Figure 6 As shown, a fourth steam channel 14 is provided on the lower surface of the heating body 1, and the fourth steam channel 14 is connected to the inner channel through a plurality of steam outlets 131. The steam in the inner channel of the third steam channel 13 enters the fourth steam channel 14 through a plurality of steam outlets 131. The fourth steam channel 14 is the last channel of the steam channel of the heater, and the fourth steam channel 14 is surrounded by the heating body 1 above and the ironing base plate 4 below, and the steam can be directly output from the ironing base plate 4 to the steam iron. Moreover, the fourth steam channel 14 has the largest space, extending from the third steam channel 13 to the water storage evaporation chamber 15, so that the steam iron has a larger steam surface, thereby improving the ironing efficiency of the iron. Among them, a cavity partition 157154 is provided between the water storage evaporation chamber 15 and the fourth steam channel 14, refer to Figure 4 , so as to isolate the water storage evaporation chamber 15 from the fourth steam channel 14 and prevent liquid water from entering the fourth steam channel 14.

[0053] like Figure 3 As shown, the ironing soleplate 4 is provided with a plurality of steam columns 41 at the fourth steam channel 14 corresponding to the heating body 1, and the plurality of steam columns 41 are staggered with the plurality of steam outlets 131 on the heating body 1. It is prevented that the steam is sprayed directly from the steam outlet 131 into the steam column 41; the steam can only enter the fourth steam channel 14 first, and then spray out of the ironing soleplate 4 from the inside of the fourth steam channel 14 through the steam column 41, which can reduce the water spraying effect of the iron and improve the user experience.

[0054] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heater of a steam iron, comprising a heating body and a water injection pipe, wherein the heating body is provided with a water inlet, the water injection pipe is connected to the water inlet, and first steam channels are provided on both sides of the upper surface of the heating body, characterized in that: The heating body is provided with a water storage evaporation chamber, and the water storage evaporation chamber is provided with a channel portion extending to the water inlet, the water inlet includes a first water inlet and a second water inlet, and the channel portion is also connected with the first steam channels on both sides through the first water inlet and the second water inlet respectively; An installation groove is provided on the upper surface of the top wall of the water storage evaporation chamber. The installation groove is provided with a temperature controller, which is used to monitor the temperature of the water storage evaporation chamber located directly below the installation groove.

2. The heater of the steam iron according to claim 1, characterized in that: The lower surface of the water injection pipe is provided with two water outlets, and the two water outlets are respectively connected to the first water inlet and the second water inlet; A slot is also provided on the lower surface of the water injection pipe, and the slot is located between the two water outlets. A partition is provided between the first water inlet and the second water inlet. The slot is plugged into the partition and enables the two water outlets to be connected to the first water inlet and the second water inlet respectively.

3. The heater of the steam iron according to claim 1 or 2, characterized in that: A water inlet guide surface is provided beside the water inlet, and the water outlet of the water injection pipe is located above the water inlet guide surface, so that the water outlet of the water injection pipe falls on the water inlet guide surface and then flows into the water storage evaporation chamber.

4. The heater of the steam iron according to claim 1, characterized in that: Heating tubes are embedded on both sides of the heating body, and the first steam channel is arranged along the tube body of the heating tube, first extending from one end of the heating body to the other end along the upper surface of the heating tube, and then returning to the side of the water inlet along the inner side of the heating tube.

5. The heater of the steam iron according to claim 4, characterized in that: A second steam channel is provided on the lower surface of the heating body, a first connecting port is provided next to the water inlet, and the second steam channel is connected to the first steam channel through the first connecting port; the first steam channel and the second steam channel are respectively located on the upper and lower sides of the heating tube.

6. The heater of the steam iron according to claim 5, characterized in that: A third steam channel is provided on the upper surface of the heating body and between the first steam channels on both sides. A second connecting port is provided at one end of the third steam channel away from the water storage evaporation chamber. The third steam channel is connected to the second steam channel through the second connecting port.

7. The heater of the steam iron according to claim 6, characterized in that: The third steam channel includes two outer channels and one inner channel arranged in parallel, one end of the two outer channels are connected to the second steam channel through the second connecting port, and the other ends of the two outer channels are connected to the inner channel.

8. The heater of the steam iron according to claim 7, characterized in that: The inner channel is provided with a plurality of steam outlets, and the lower surface of the heating body is provided with a fourth steam channel, and the fourth steam channel is communicated with the inner channel through the steam outlets.

9. The heater of the steam iron according to claim 8, characterized in that: The fourth steam channel extends from the third steam channel to the water storage evaporation chamber, and a cavity partition is provided between the water storage evaporation chamber and the fourth steam channel.

10. The heater of the steam iron according to claim 1, characterized in that: It also includes a cover plate and an ironing sole plate, wherein the cover plate is fixedly arranged above the heating body, and the ironing sole plate is fixedly arranged below the heating body; The ironing soleplate is provided with a plurality of steam columns at the fourth steam passage corresponding to the heating body, and the plurality of steam columns are staggered with the plurality of steam outlets on the heating body.

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