Steam heating body and instant heating type heating equipment

Abstract

The utility model discloses a steam heating body and instant heating type heating equipment, comprising a first substrate and a second substrate, a heating cavity is formed between the first substrate and the second substrate, the heating cavity is connected with a water inlet used for injecting water into the heating cavity and a steam outlet used for discharging steam in the heating cavity; the steam heating body is characterized in that a resistance heating circuit is arranged on the side, opposite to the heating cavity, of the first substrate and / or the second substrate, the resistance heating circuit is provided with a plurality of heating areas with different power densities, and the power densities of the heating areas are sequentially decreased in the direction from the water inlet to the steam outlet. The heating cavity is formed between the first base plate and the second base plate, the size is smaller, saturated steam can be rapidly generated in the heating cavity, the saturated steam is discharged through the steam outlet, the use requirement of the saturated steam is effectively met, the structure is simple, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of instant heating, in particular to a steam heating body and instant heating equipment. Background Art

[0002] A heating plate is an electric heating plate that generates heat on the surface of the plate without open flames after being powered on. It is often used in instant heating equipment to heat liquids to achieve the effect of using hot water and producing steam, such as coffee machines and sweeping robots. When heating, existing coffee machines and sweeping robots achieve the steam effect by controlling the water intake and heating power. Coffee machines use steam to brew coffee, and sweeping robots use high-temperature steam for cleaning. However, in actual use, it is costly and complex in structure, and the saturated steam it heats cannot meet the use requirements, resulting in poor use results. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a steam heating body and an instant heating device, so as to better meet the use demand of saturated steam.

[0004] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0005] The first aspect of the utility model provides a steam heating body, comprising a first substrate and a second substrate, a heating chamber is formed between the first substrate and the second substrate, the heating chamber is connected to a water inlet for injecting water into the heating chamber and a steam outlet for discharging steam in the heating chamber; the first substrate and / or the second substrate is provided with a resistive heating circuit on a side facing away from the heating chamber, the resistive heating circuit has a plurality of heating areas with different power densities, and the power densities of the plurality of heating areas decrease successively along the direction from the water inlet to the steam outlet.

[0006] In the present utility model, at least one first isolation zone extending along the length direction of the first substrate or the second substrate is provided in the heating chamber.

[0007] In the present invention, further, the first isolation zone and the steam outlet are located on the same straight line, and one end of the first isolation zone extends to the steam outlet position.

[0008] Furthermore, in the utility model, there are multiple steam outlets, and the first isolation zone is provided in the heating chamber corresponding to each steam outlet.

[0009] In the present invention, at least one second isolation zone extending along the width direction of the first substrate or the second substrate is further provided in the heating chamber.

[0010] In the present invention, the second isolation zone is arranged obliquely so that the steam can flow back along the track of the second isolation zone after being cooled to a liquid state.

[0011] The utility model further provides a plurality of third isolation zones extending along the width direction of the first substrate or the second substrate on both sides of the heating chamber, and the third isolation zones between the two sides of the heating chamber are alternately distributed in sequence along the length direction of the first substrate or the second substrate, and there is a gap between the free end of the third isolation zone and the side wall of the accommodating chamber, thereby forming a reciprocatingly bent steam channel.

[0012] In the present invention, the third isolation zone is arranged obliquely so that the steam can flow back along the trajectory of the steam channel after being cooled to a liquid state.

[0013] In the present invention, a frame is provided between the first substrate and the second substrate, and the first substrate, the frame and the second substrate jointly enclose and form the heating chamber.

[0014] The second aspect of the utility model provides an instant heating device, comprising the steam heating body described above.

[0015] The beneficial effects of the utility model are as follows: the utility model forms a heating chamber between the first substrate and the second substrate, which has a smaller volume. Therefore, when a certain amount of water to be heated is injected into the heating chamber through the water inlet, the resistance heating circuits on the first substrate and the second substrate are energized to heat the water to be heated in the heating chamber. Since the power density of the multiple heating areas decreases successively from the water inlet to the steam outlet, each heating area heats a different position in the heating chamber, so that saturated steam can be quickly generated in the heating chamber, and the saturated steam is discharged through the steam outlet, thereby effectively meeting the use requirements of saturated steam, and the structure is simple and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded schematic diagram of a steam heating body provided in Embodiment 1 of the present utility model;

[0017] Figure 2 It is an exploded schematic diagram of the steam heating body provided in the first embodiment of the utility model from another perspective;

[0018] Figure 3 This is a cross-sectional state diagram of the steam heating body provided in the first embodiment of the utility model;

[0019] Figure 4 This is an exploded schematic diagram of a steam heating body provided in the second embodiment of the present utility model;

[0020] Figure 5 This is an exploded schematic diagram of a steam heating body provided in Embodiment 3 of the present utility model;

[0021] Figure 6 This is an exploded schematic diagram of a steam heating body provided in Embodiment 4 of the present utility model;

[0022] Figure 7 This is an exploded schematic diagram of a steam heating body provided in Embodiment 5 of the present utility model;

[0023] Figure 8 It is an exploded schematic diagram of the steam heating body provided in the fifth embodiment of the present utility model from another perspective;

[0024] Fig. 9 This is an exploded schematic diagram of a steam heating body provided in Embodiment 6 of the present utility model;

[0025] Fig.10 It is an exploded schematic diagram of the steam heating body provided in the seventh embodiment of the present utility model;

[0026] Fig.11 This is an exploded schematic diagram of a steam heating body provided in Embodiment 8 of the present utility model;

[0027] Fig.12 It is an exploded schematic diagram of the steam heating body provided by the ninth embodiment of the present utility model;

[0028] Explanation of the reference numerals: 1. first substrate; 2. second substrate; 3. heating chamber; 31. first isolation zone; 32. second isolation zone; 33. third isolation zone; 4. water inlet; 5. steam outlet; 6. resistance heating circuit; 61. heating area; 7. frame; 8. first patch NTC; 9. second patch NTC; 10. third patch NTC; 11. mounting lug; 12. groove; 13. block. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0030] Embodiment 1: Figures 1 to 3As shown, a steam heating body described in this embodiment includes a first substrate 1 and a second substrate 2, a heating chamber 3 is formed between the first substrate 1 and the second substrate 2, and the heating chamber 3 is connected with a water inlet 4 for injecting water into the heating chamber 3 and a steam outlet 5 for discharging steam in the heating chamber 3; the first substrate 1 and / or the second substrate 2 is provided with a resistance heating circuit 6 on the side facing away from the heating chamber 3, and the resistance heating circuit 6 has a plurality of heating areas 61 with different power densities, and the power densities of the plurality of heating areas 61 decrease in sequence along the direction from the water inlet 4 to the steam outlet 5. In this embodiment, preferably, the first substrate 1 and the second substrate 2 are both provided with a resistance heating circuit 6 on the side facing away from the heating chamber 3 to improve the heating efficiency of the steam; specifically, the first substrate 1 and the second substrate 2 of this embodiment are respectively provided with a groove 12 on the side facing away from the resistance heating circuit 6, so that the heating chamber 3 is formed by sealing and enclosing the groove 12 between the two substrates. In this embodiment, preferably, two heating areas 61 are provided, and the power density of the heating area 61 close to the water inlet 4 is greater than the power density of the heating area 61 close to the steam outlet 5 .

[0031] Specifically, when the steam heating body described in this embodiment is actually used, a certain amount of water to be heated is injected into the heating chamber 3 through the water inlet 4, and then the resistance heating circuit 6 on the first substrate 1 and the second substrate 2 is energized to work, thereby heating the water to be heated in the heating chamber 3. Since the power density of the multiple heating areas 61 decreases successively from the water inlet 4 to the steam outlet 5, each heating area 61 heats a different position in the heating chamber 3, so that saturated steam is quickly generated in the heating chamber 3, and the saturated steam is discharged through the steam outlet 5, thereby effectively meeting the use requirements of saturated steam, and the structure is simple and the production cost is reduced.

[0032] The steam heating body described in this embodiment, specifically, is provided with a first patch NTC8 for monitoring the inlet water temperature at a position near the water inlet 4 on the first substrate 1. Of course, a first patch NTC8 for monitoring the inlet water temperature can also be provided at a position near the water inlet 4 on the second substrate 2. It can be set according to actual design needs. In this embodiment, the first patch NTC8 is provided to monitor the water temperature flowing in from the water inlet 4 so as to control the heating temperature.

[0033] The steam heating body described in this embodiment, specifically, the position of the first substrate 1 corresponding to the steam outlet 5 is provided with a second patch NTC9 for monitoring the steam temperature. Of course, a second patch NTC9 for monitoring the steam temperature can also be provided at a position of the second substrate 2 close to the steam outlet 5. It can be set according to actual design needs. In this embodiment, the second patch NTC9 is provided to monitor the temperature of the steam discharged from the steam outlet 5 so as to control the steam temperature.

[0034] The steam heating body described in this embodiment, specifically, the first substrate 1 or the second substrate 2 is provided with a third patch NTC10 for preventing dry burning. Specifically, in order to facilitate the layout of the resistance heating circuit 6, the third patch NTC10 is arranged on the second substrate 2, and the first patch NTC8 and the second patch NTC9 are arranged on the first substrate 1. This embodiment monitors the working temperature of the entire steam heating body by setting the third patch NTC10 to prevent the steam heating body from being damaged due to excessive temperature; this embodiment can also control the amount of water entering the heating chamber 3 by detecting the temperature through the third patch NTC10.

[0035] The steam heating body described in this embodiment, specifically, the peripheral wall of the first substrate 1 or the second substrate 2 is provided with mounting lugs 11. Preferably, in this embodiment, mounting lugs 11 are provided on both side walls of the first substrate 1, so that the entire steam heating body can be installed in an external mounting position for easy assembly.

[0036] Embodiment 2: Figures 1 to 4 As shown, the difference between this embodiment and the first embodiment is that, in the steam heating body described in this embodiment, at least one first isolation zone 31 extending along the length direction of the first substrate 1 or the second substrate 2 is provided in the heating chamber 3. In the steam heating body described in this embodiment, the first isolation zone 31 is located on the same straight line as the steam outlet 5, and one end of the first isolation zone 31 extends to the position of the steam outlet 5. This embodiment separates the space of the heating chamber 3 by providing the first isolation zone 31, so that the saturated steam discharged from the steam outlet 5 is drier, thereby improving the heating efficiency and steam discharge effect of the saturated steam, and also facilitating the discharge of the saturated steam in the heating chamber 3; at the same time, it can also reduce the heat concentration in the heating chamber 3, so that the temperature detection of the third patch NTC10 is faster and more accurate. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

[0037] Of course, for the steam heating body described in this embodiment, the number of the steam outlets 5 can be set to multiple, so that the saturated steam in the heating chamber 3 can be discharged from the steam outlet 5 in time, avoiding the saturated steam from accumulating in the heating chamber 3 for a long time and causing the dry burning problem. The first isolation zone 31 is provided corresponding to each steam outlet 5 in the heating chamber 3, which further makes the saturated steam discharged from the steam outlet 5 drier, and further improves the heating efficiency and steam discharge effect of the saturated steam.

[0038] Embodiment 3: Figures 1 to 5 As shown, the difference between this embodiment and the second embodiment is that, in the steam heating body described in this embodiment, at least one second isolation zone 32 extending along the width direction of the first substrate 1 or the second substrate 2 is further provided in the heating chamber 3. The rest of the structure is the same as that of the second embodiment and will not be described again.

[0039] On the basis of the second embodiment, this embodiment further divides the heating chamber 3 by setting a second isolation zone 32 in the heating chamber 3, so that the saturated steam discharged from the steam outlet 5 is drier, thereby improving the heating efficiency and steam discharge effect of the saturated steam.

[0040] It should be noted that, in the steam heating body described in this embodiment, the number of the second isolation zones 32 is set to be multiple, and the arrangement of the multiple second isolation zones 32 has multiple ways, which can be automatically set according to actual design needs;

[0041] For example, second isolation zones 32 are arranged on both sides of the heating chamber 3 near the steam outlet 5, which can be defined as side isolation zones, and the position near the steam outlet 5 in the center in the width direction can be defined as a central isolation zone. The number of side isolation zones can be set to multiple, and the number of central isolation zones can also be set to multiple.

[0042] In the steam heating body described in this embodiment, the second isolation zone 32 is arranged at an angle so that the steam can flow back along the track of the second isolation zone after it is cooled to a liquid state. In this embodiment, the second isolation zone 32 is arranged at an angle so that the steam in the heating chamber 3 forms liquid after it is cooled, and the liquid flows back into the heating chamber 3 along the inclined second isolation zone 32, effectively reducing the liquid formed by the steam cooling remaining on the second isolation zone 32 and affecting the steam output effect next time.

[0043] In this embodiment, preferably, Figure 5 As shown, the first isolation zone 31 and the second isolation zone 32 are vertically cross-connected to facilitate the production of the steam heating body.

[0044] Embodiment 4: Figures 1 to 3 , Figure 6 As shown, the difference between this embodiment and the first embodiment is that, in the steam heating body described in this embodiment, a plurality of third isolation belts 33 extending along the width direction of the first substrate 1 or the second substrate 2 are respectively arranged on both sides of the heating chamber 3, and the third isolation belts 33 between the two sides of the heating chamber 3 are alternately distributed along the length direction of the first substrate 1 or the second substrate 2, and there is a gap between the free end of the third isolation belt 33 and the side wall of the accommodating chamber, thereby forming a reciprocatingly bent steam channel. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

[0045] The steam heating body described in this embodiment, when actually used, forms a reciprocatingly bent steam channel between each third isolation zone 33, and cooperates with the heating areas 61 with different power densities, so that the steam generated in the heating chamber 3 flows along the steam channel, and the heating area 61 corresponding to the steam channel further heats the steam in the steam channel, so that saturated steam can be quickly discharged from the steam outlet 5, and the steam is drier, thereby effectively meeting the use requirements of saturated steam.

[0046] Preferably, the low-density power resistance heating circuit 6 corresponding to the steam channel partially extends to an end of the third insulation belt closest to the water inlet 4 away from the gap, so as to effectively avoid the problem of dry burning caused by steam accumulation at this position.

[0047] In the steam heating body described in this embodiment, the third isolation zone 33 is arranged at an angle so that the steam can flow back along the trajectory of the steam channel after it is cooled into liquid. In this way, the steam in the steam channel can flow back to the heating chamber 3 along the trajectory of the steam channel after it is cooled into liquid. Such an arrangement effectively reduces the liquid formed by steam cooling remaining in the steam channel and affecting the next steam output effect, and the structure is more reasonable to use.

[0048] It should be noted that, based on the first embodiment, a stopper 13 may be provided at a position corresponding to the steam outlet 5 in the heating chamber 3, and the stopper 13 may be in a semicircular arc shape, a U shape, or a V shape, and a notch may be provided through the stopper 13, so that the stopper 13 may be symmetrically divided into two halves. For example, if the stopper 13 is provided in a semicircular arc shape, the boiling water in the heating chamber 3 may be prevented from overflowing from the steam outlet 5, thereby achieving drier steam. Specifically, the stopper 13 may be fixed on the inner side wall of the first substrate 1 or the second substrate 2.

[0049] Embodiment 5: Figure 7 and Figure 8 As shown, the difference between this embodiment and the above-mentioned embodiment is that, in the steam heating body described in this embodiment, a frame 7 is arranged between the first substrate 1 and the second substrate 2, and the first substrate 1, the frame 7 and the second substrate 2 jointly enclose the heating chamber 3; in this embodiment, since the frame 7 is added between the first substrate 1 and the second substrate 2, it is not necessary to open a groove 12 on the first substrate 1 and the second substrate 2, so that saturated steam can be quickly discharged from the steam outlet 5, and the steam is drier, effectively meeting the use requirements of saturated steam. In this embodiment, the frame 7 is arranged between the first substrate 1 and the second substrate 2 to enclose the heating chamber 3 to ensure the strength and thermal conductivity of the first substrate 1 and the second substrate 2, so that the resistance heating circuit 6 is arranged on the first substrate 1 and the second substrate 2, which is also convenient for the production of the steam heating body; the structure is simple and the production cost is reduced.

[0050] Example 6: Figures 7 to 9As shown, the difference between this embodiment and embodiment five is that, in the steam heating body described in this embodiment, at least one first isolation zone 31 extending along the length direction of the first substrate 1 or the second substrate 2 is provided in the heating chamber 3. In the steam heating body described in this embodiment, the first isolation zone 31 is located on the same straight line as the steam outlet 5, and one end of the first isolation zone 31 extends to the position of the steam outlet 5. This embodiment separates the space of the heating chamber 3 by providing the first isolation zone 31, so that the saturated steam discharged from the steam outlet 5 is drier, thereby improving the heating efficiency and steam discharge effect of the saturated steam, and also facilitating the discharge of the saturated steam in the heating chamber 3; at the same time, it can also reduce the heat concentration in the heating chamber 3, so that the temperature detection of the third patch NTC10 is faster and more accurate. The remaining structure is the same as that of embodiment five, and will not be repeated here.

[0051] Embodiment 7: Figures 7 to 10 As shown, the difference between this embodiment and the sixth embodiment is that, in the steam heating body of this embodiment, the heating chamber 3 is further provided with at least one second isolation zone 32 extending along the width direction of the first substrate 1 or the second substrate 2. The rest of the structure is the same as that of the second embodiment and will not be described here.

[0052] On the basis of the sixth embodiment, this embodiment further divides the heating chamber 3 by setting a second isolation zone 32 in the heating chamber 3, so that the saturated steam discharged from the steam outlet 5 is drier, thereby improving the heating efficiency and steam discharge effect of the saturated steam.

[0053] Embodiment 8: Figure 7 , Figure 8 and Fig.11 As shown, the difference between this embodiment and the fifth embodiment is that, in the steam heating body described in this embodiment, a plurality of third isolation belts 33 extending along the width direction of the first substrate 1 or the second substrate 2 are respectively arranged on both sides of the heating chamber 3, and the third isolation belts 33 between the two sides of the heating chamber 3 are alternately distributed along the length direction of the first substrate 1 or the second substrate 2, and there is a gap between the free end of the third isolation belt 33 and the side wall of the accommodating chamber, thereby forming a reciprocatingly bent steam channel. The rest of the structure is the same as that of the fifth embodiment, and will not be repeated here.

[0054] In actual use, a reciprocatingly bent steam channel is formed between each third isolation zone 33, and the heating areas 61 with different power densities are used to make the steam generated in the heating chamber 3 flow along the steam channel. The heating area 61 corresponding to the steam channel further heats the steam in the steam channel, so that saturated steam can be quickly discharged from the steam outlet 5, and the steam is drier, thereby effectively meeting the use requirements of saturated steam.

[0055] Embodiment 9: Figure 7 , Figure 8 and Fig.12 As shown, the difference between this embodiment and the fifth embodiment is that the steam heating body described in this embodiment is provided with a stopper 13 at a position corresponding to the steam outlet 5 in the heating chamber 3, and the stopper 13 is in a semicircular arc shape, a U shape or a V shape, and a notch is provided through the stopper 13, so that the stopper 13 is symmetrically divided into two halves. In the embodiment, the stopper 13 is set in a semicircular arc shape, so as to prevent the boiling water in the heating chamber 3 from overflowing from the steam outlet 5, thereby achieving drier steam. The rest of the structure is the same as that of the fifth embodiment, and will not be repeated here.

[0056] It should be noted that this embodiment can also be combined with the sixth embodiment to obtain a drier steam effect.

[0057] In the sixth embodiment, the first isolation zone 31 can be arranged on the inner wall of the first substrate 1 or the second substrate 2. In the seventh embodiment, optionally, the second isolation zone 32 is arranged on the inner wall of the frame 7, and the first isolation zone 31 and the second isolation zone 32 are vertically cross-connected to facilitate the production of the steam heating body. In the eighth embodiment, optionally, the third isolation zone 33 can be arranged on the inner side wall of the frame 7 to facilitate the production of the steam heating body. In the ninth embodiment, the block 13 can be arranged on the inner wall of the first substrate 1 or the second substrate 2.

[0058] In the fifth to ninth embodiments, the first substrate 1, the frame 7 and the second substrate 2 may be sealed by welding, such as laser welding or brazing; or may be sealed by crimping.

[0059] The utility model embodiment also provides an instant heating device, including the above-mentioned steam heating body. Since the present embodiment adopts the above-mentioned steam heating body, it has all the beneficial effects of the above-mentioned steam heating body, which will not be described in detail here.

[0060] The above are only several preferred embodiments of the present utility model. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the present utility model patent application are included in the protection scope of the present utility model patent application.

Claims

1. A steam heating element, characterized in that: It includes a first substrate and a second substrate, a heating chamber is formed between the first substrate and the second substrate, the heating chamber is connected to a water inlet for injecting water into the heating chamber and a steam outlet for discharging steam in the heating chamber; the first substrate and / or the second substrate is provided with a resistive heating circuit on the side facing away from the heating chamber, the resistive heating circuit has a plurality of heating areas with different power densities, and the power densities of the plurality of heating areas decrease successively from the water inlet to the steam outlet.

2. A steam heating element according to claim 1, characterized in that: At least one first isolation zone extending along the length direction of the first substrate or the second substrate is arranged in the heating chamber.

3. A steam heating element according to claim 2, characterized in that: The first isolation zone and the steam outlet are located on the same straight line, and one end of the first isolation zone extends to the steam outlet position.

4. A steam heating element according to claim 3, characterized in that: There are multiple steam outlets, and the first isolation zone is provided in the heating chamber corresponding to each steam outlet.

5. A steam heating element according to claim 2, characterized in that: At least one second isolation zone extending along the width direction of the first substrate or the second substrate is also arranged in the heating chamber.

6. A steam heating element according to claim 5, characterized in that: The second isolation zone is arranged obliquely so that the steam can flow back along the track of the second isolation zone after being cooled to a liquid state.

7. A steam heating element according to claim 1, characterized in that: A plurality of third isolation zones extending along the width direction of the first substrate or the second substrate are respectively arranged on both sides of the heating chamber, and the third isolation zones between the two sides of the heating chamber are alternately distributed in sequence along the length direction of the first substrate or the second substrate. There is a gap between the free end of the third isolation zone and the side wall of the accommodating chamber, thereby forming a reciprocatingly bent steam channel.

8. A steam heating element according to claim 7, characterized in that: The third isolation zone is arranged at an angle so that the steam can flow back along the trajectory of the steam channel after being cooled to a liquid state.

9. A steam heating element according to any one of claims 1 to 8, characterized in that: A frame is disposed between the first substrate and the second substrate, and the first substrate, the frame and the second substrate together enclose the heating chamber.

10. An instant heating device, characterized in that: The invention comprises a steam heating body as claimed in any one of claims 1 to 9.

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