An iron soleplate assembly with balanced temperature and setting method thereof

Abstract

An iron soleplate assembly with balanced temperature and its setting method include a heating plate assembly and an ironing soleplate, wherein the heating plate assembly includes a heating cover plate, a heating soleplate and a heating element, a heat-conducting gap is provided between the heating soleplate and the ironing soleplate, and the height of the heat-conducting gap close to the heating element is greater than the height of the heat-conducting gap far from the heating element. The setting method is to obtain the temperature value of each point on the lower surface of the heating soleplate after preheating and compare it with the temperature value set by the iron to calculate the temperature difference, and to set the height of the heat-conducting gap between the heating soleplate and the ironing soleplate according to the calculated temperature difference. The present invention has carried out physical structural transformation on the heating soleplate, and has adjusted the height of the heat-conducting gap at each location between the heating soleplate and the ironing soleplate, and has coordinated the temperature of the ironing soleplate with the characteristic that the heat conductivity of the heating soleplate itself is greater than the heat conductivity of the air in the heat-conducting gap, so as to make the temperature at each location of the ironing soleplate more balanced.

Description

Technical Field

[0001] The invention relates to the application field of clothing ironing appliances, in particular to an iron soleplate component with a balanced temperature and a setting method thereof. Background Art

[0002] Electric irons are tools for smoothing clothes and fabrics. Thermostatic irons can automatically adjust the temperature within the range of 60-250℃, and can automatically cut off the power supply. They can be ironed at the appropriate temperature according to different fabrics, which saves more electricity than ordinary irons. Steam spray irons have both thermostatic and steam generation functions, and some are equipped with spray devices, eliminating the trouble of manual water spraying, and the fabrics are more evenly moistened, resulting in better ironing effects.

[0003] The traditional electric iron soleplates are mostly heated by electric heating tubes and the temperature is controlled by temperature controllers to reach the safe range. In addition, the heating wire in the electric heating tube will also cause the disadvantage of uneven heating, which may cause some safety hazards. The specific structure is: the heating soleplate is heated by the heating tube, and then the temperature is transferred to the ironing soleplate. However, since the ironing soleplate is a complete plane and the heating tube is a local tube, the sizes of the two are not compatible, which causes the temperature of the area close to the heating tube on the ironing soleplate to be higher than the temperature of the area far from the heating tube, that is, the temperature of the ironing soleplate is uneven, which affects the actual use effect.

[0004] In order to solve the defect of uneven temperature of the ironing base plate, solutions have also appeared in the prior art. For example, Chinese Patent No.: 201520089774.6 discloses a constant temperature electric iron, including an iron body and a heating base plate arranged at the bottom of the iron body, an electric heating tube for heating the heating base plate is buried in the heating base plate, a steam generating chamber for vaporizing water into steam is arranged on the heating base plate, and a steam through hole connecting the steam generating chamber with the outside is provided on the heating base plate, and an ironing base plate is also covered under the heating base plate, and an air outlet is provided on the ironing base plate, and a PTC heating element and a temperature sensing element capable of detecting the temperature of the ironing base plate are attached to the ironing base plate, and the PTC heating element and the temperature sensing element are electrically connected to the control board. The present invention improves the base plate structure of the electric iron and sets a double-layer base plate, that is, an ironing base plate is set under the heating base plate, which greatly reduces the temperature, and compensates the temperature through the PTC heating element, thereby achieving constant temperature. This structure also has obvious shortcomings, namely, the added PTC heating element and related circuit structure will make the overall structure more complicated, the failure rate will increase, and the cost will further increase; in addition, the added PTC heating element for temperature compensation is essentially the same as the original heating tube, and there will still be a problem that the temperature of the area close to the PTC heating element on the ironing base plate will be higher than the temperature of the area far away from the PTC heating element, that is, there will still be the defect of uneven temperature of the ironing base plate. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides an iron soleplate assembly with a balanced temperature and a setting method thereof.

[0006] The technical solution to the technical problem of the present invention is: an iron soleplate assembly with a balanced temperature, comprising a heating plate assembly connected to an iron body, and an ironing soleplate arranged at the lower end of the heating plate assembly, the heating plate assembly comprising a heating cover plate, a heating soleplate and a heating body arranged between the heating cover plate and the heating soleplate, a heat conduction gap is arranged between the heating soleplate and the ironing soleplate, and the height of the heat conduction gap close to the heating body portion is greater than the height of the heat conduction gap away from the heating body portion.

[0007] Preferably, the lower end surface of the heating base plate is provided with a raised portion and a recessed portion; the recessed portion is arranged close to the heating element to increase the height of the thermal conductive gap corresponding to the position of the recessed portion; the raised portion is arranged away from the heating element to reduce the height of the thermal conductive gap corresponding to the position of the raised portion.

[0008] Preferably, the lower end surface of the heating base plate is a wave surface, the wave crests of the wave surface are the protrusions, and the wave troughs of the wave surface are the depressions.

[0009] Preferably, the raised portion is a plurality of bumps protruding from the lower end surface of the heating base plate, and the height of the bumps close to the heating element is smaller than the height of the bumps far from the heating element.

[0010] Preferably, the number of the protrusions close to the heating element is smaller than the number of the protrusions far from the heating element.

[0011] Preferably, the cross-sectional area of ​​the protrusion close to the heating element is smaller than the cross-sectional area of ​​the protrusion far from the heating element.

[0012] Preferably, the thermal conductivity of the heating base plate is greater than the thermal conductivity of the air in the heat-conducting gap.

[0013] The present invention also provides a setting method of an iron sole plate assembly, comprising the iron sole plate assembly with a balanced temperature as described above, obtaining the temperature value of each point on the lower surface of the heating sole plate after preheating and comparing it with the set temperature value of the iron to calculate the temperature difference, wherein the temperature value on the lower surface of the heating sole plate is positive when it is greater than the set temperature value of the iron, and negative when it is less than the set temperature value of the iron;

[0014] The height of the heat-conducting gap between the heating base plate and the ironing base plate is set according to the calculated temperature difference.

[0015] Preferably, the temperature values ​​of each point on the lower surface of the heating base plate are the temperature values ​​monitored when the iron is at the highest temperature gear.

[0016] Preferably, the base height of the heat-conducting gap between the heating base plate and the ironing base plate is D;

[0017] If the temperature difference at any point is above 40°C, the height of the thermal gap corresponding to that point is increased by 100%, that is, the height of the thermal gap at that point is 2D;

[0018] If the temperature difference at any point is 40℃~30℃, the height of the thermal gap corresponding to the point is increased by 80%, that is, the height of the thermal gap at the point is 1.8D;

[0019] If the temperature difference at any point is 30℃~20℃, the height of the thermal gap corresponding to the point is increased by 50%, that is, the height of the thermal gap at the point is 1.5D;

[0020] If the temperature difference at any point is 20℃~10℃, the height of the thermal gap corresponding to the point is increased by 30%, that is, the height of the thermal gap at the point is 1.3D;

[0021] If the temperature difference at any point is 10℃~5℃, the height of the thermal gap corresponding to the point is increased by 20%, that is, the height of the thermal gap at the point is 1.2D;

[0022] If the temperature difference at any point is 5℃~2℃, the height of the thermal gap corresponding to the point is increased by 10%, that is, the height of the thermal gap at the point is 1.1D;

[0023] If the temperature difference at any point is 2℃~﹣2℃, the height of the thermal gap corresponding to the point does not change, that is, the height of the thermal gap at the point is D;

[0024] If the temperature difference at any point is -5℃~-2℃, the height of the thermal gap corresponding to the point will be reduced by 10%, that is, the height of the thermal gap at the point will be 0.9D;

[0025] If the temperature difference at any point is -10℃~-5℃, the height of the thermal gap corresponding to the point will be reduced by 20%, that is, the height of the thermal gap at the point is 0.8D;

[0026] If the temperature difference at any point is -20℃~-10℃, the height of the thermal gap corresponding to the point will be reduced by 30%, that is, the height of the thermal gap at the point is 0.7D;

[0027] If the temperature difference at any point is -30℃~-20℃, the height of the thermal gap corresponding to the point will be reduced by 50%, that is, the height of the thermal gap at the point is 0.5D;

[0028] If the temperature difference at any point is -40℃~-30℃, the height of the thermal gap corresponding to the point will be reduced by 80%, that is, the height of the thermal gap at the point is 0.2D;

[0029] If the temperature difference at any point is below -40°C, the height of the thermal gap corresponding to the point is set to 0, that is, the heating base plate at the point is attached to the ironing base plate.

[0030] The beneficial effects of the present invention are as follows: 1. The physical structure of the heating base plate is modified, that is, by setting the raised part and the recessed part, the height adjustment of the heat conduction gaps at various locations between the heating base plate and the ironing base plate is realized, and the characteristic that the heat conductivity of the heating base plate itself is greater than the heat conductivity of the air in the heat conduction gap is combined with the function of coordinating the temperature of the ironing base plate, so that the temperature at various locations of the ironing base plate is more balanced and the temperature difference is smaller, thereby improving the ironing effect of clothes; 2. Compared with the existing structure of using PTC heating elements to compensate for the temperature of the ironing base plate to make the temperature balanced, the structure of the present invention is simpler and more practical, more stable, and has lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is an exploded view of the present invention.

[0033] Figure 3 It is a cross-sectional view of the first embodiment.

[0034] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0035] Figure 5 It is a cross-sectional view of the second embodiment.

[0036] Figure 6 yes Figure 5 Schematic diagram of the enlarged portion B. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Embodiment 1

[0039] Reference Figure 1 to Figure 4, an iron sole plate assembly with a balanced temperature, comprising a heating plate assembly connected to an iron body, and an ironing sole plate 1 arranged at the lower end of the heating plate assembly, the heating plate assembly comprising a heating cover plate 2, a heating sole plate 3 and a heating body 4 arranged between the heating cover plate 2 and the heating sole plate 3, a heat-conducting gap 5 is arranged between the heating sole plate 3 and the ironing sole plate 1, and the height of the heat-conducting gap 5 close to the heating body 4 is greater than the height of the heat-conducting gap 5 away from the heating body 4. The heat conductivity of the heating sole plate 3 is greater than the heat conductivity of the air in the heat-conducting gap 5. The heat-conducting gap 5 can be zero.

[0040] Of course, if the heating base plate 3 is made of a material with a thermal conductivity lower than that of the air in the thermal gap 5, the positions of the raised portion and the recessed portion can be interchanged to achieve the function of balanced heat conduction. That is, any simple modification, change and equivalent structural change of this type still falls within the protection scope of the technical solution of the present invention.

[0041] In order to set the height of the heat-conducting gap 5 of different heights, a protrusion 6 and a recess 7 are provided on the lower end surface of the heating base plate 3, and the gap between the protrusion 6 or the recess 7 and the ironing base plate 1 is the heat-conducting gap 5. Therefore, in this setting, the height of the heat-conducting gap 5 between the protrusion 6 and the ironing base plate 1 is relatively small, and the height of the heat-conducting gap 5 between the recess 7 and the ironing base plate 1 is relatively large. It is particularly important that the recess 7 is arranged near the heating element 4, that is, the position of the recess 7 corresponds to the position of the heating element 4, so as to increase the height of the heat-conducting gap 5 corresponding to the position of the recess 7; the protrusion 6 is arranged away from the heating element 4, that is, the position of the protrusion 6 is staggered with the position of the heating element 4, so as to reduce the height of the heat-conducting gap 5 corresponding to the position of the protrusion 6. This setting can reduce the temperature difference at various places of the ironing base plate 1 and play a role in balancing the temperature.

[0042] Preferably, the lower end surface of the heating soleplate 3 is a wave surface, the wave crest 11 of the wave surface is the protrusion 6, and the wave trough 12 of the wave surface is the recess 7. Preferably, the lower end surface of the heating soleplate 3 adopts a wave surface setting, and the wave shape presents a periodic and regular rise and fall characteristic, which is consistent with the protrusion 6 and the recess 7 required by the present invention, and can make the surface temperature of the ironing soleplate 1 more balanced.

[0043] In this embodiment, a vaporization chamber 8 is formed between the heating cover plate 2 and the heating base plate 3 , and a steam outlet hole 9 communicating with the vaporization chamber 8 is also formed on the ironing base plate 1 .

[0044] Embodiment 2

[0045] Reference Figure 5 , Figure 6The difference between this embodiment and the second embodiment is that: the protrusion 6 is a plurality of protrusions 10 protruding from the lower end surface of the heating base plate 3, and the height of the protrusion 10 near the heating element 4 is smaller than the height of the protrusion 10 far from the heating element 4, the number of the protrusions 10 near the heating element 4 is smaller than the number of the protrusions 10 far from the heating element 4, and the cross-sectional area of ​​the protrusion 10 near the heating element 4 is smaller than the cross-sectional area of ​​the protrusion 10 far from the heating element 4. In the arrangement of this embodiment, protrusions 10 with a larger height, a larger cross-sectional area, and a larger number (with a larger indexing density) are arranged in a part of the ironing base plate 1 far from the heating element 4, and the heat conduction gap 5 in this part is smaller, and the heat conduction capacity is stronger.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment according to the technical essence of the invention still falls within the protection scope of the technical solution of the present invention.

[0047] The shapes and actual usage of each iron product are different, that is, even if all variables are controlled for different products, the temperatures of the same area of ​​the heating base plate monitored will still be different in most cases. Therefore, the same structure of the heat-conducting gap cannot be applied to all products, and each design needs to be matched. The purpose of the setting method provided by the present invention is to set the height of the heat-conducting gap more scientifically and reasonably, so as to achieve the function of the iron base plate assembly having a balanced temperature. Specifically, it includes the iron base plate assembly with a balanced temperature as described above, using a thermostat 13 to obtain the temperature values ​​of each point on the lower surface of the heating base plate after preheating and compare it with the set temperature value of the iron to calculate the temperature difference, wherein the temperature value on the lower surface of the heating base plate is greater than the set temperature value of the iron, and the temperature value on the lower surface of the heating base plate is less than the set temperature value of the iron, and the temperature difference is calculated; the height of the heat-conducting gap between the heating base plate and the ironing base plate is set according to the calculated temperature difference. That is, each product is tested during the research and development stage. The thermal gap used in the testing stage is consistent with the existing technology, that is, the thermal gap has a uniform height value. After the test, the thermal gap is designed and adjusted according to the value to design the thermal gap setting method that best suits the product.

[0048] When the iron is at the highest temperature gear, the temperature difference at various points on the lower surface of the heating base plate is most obvious. According to the test results of existing products, the temperature difference can reach at least 30°C. Therefore, in order to achieve good results in setting the thermal conductive gap at all temperature gears, the temperature value of each point on the lower surface of the heating base plate is the temperature value monitored when the iron is at the highest temperature gear.

[0049] Specifically, the basic height of the heat conduction gap between the heating base plate and the ironing base plate is D. For example, the heat conduction gap of a conventional product is 10 mm, that is, D=10 mm;

[0050] If the temperature difference at any point during the test is more than 40°C, that is, the temperature of the point on the lower surface of the heating base plate is more than 40°C higher than the iron setting temperature, the height of the thermal gap corresponding to the point will be increased by 100%, that is, the height of the thermal gap at the point is 2D (20mm);

[0051] If the temperature difference at any point is 40℃~30℃, the height of the thermal gap corresponding to the point is increased by 80%, that is, the height of the thermal gap at the point is 1.8D (18mm);

[0052] If the temperature difference at any point is 30℃~20℃, the height of the thermal gap corresponding to the point is increased by 50%, that is, the height of the thermal gap at the point is 1.5D (15mm);

[0053] If the temperature difference at any point is 20℃~10℃, the height of the thermal gap corresponding to the point is increased by 30%, that is, the height of the thermal gap at the point is 1.3D (13mm);

[0054] If the temperature difference at any point is 10℃~5℃, the height of the thermal gap corresponding to that point is increased by 20%, that is, the height of the thermal gap at that point is 1.2D (12mm);

[0055] If the temperature difference at any point is 5℃~2℃, the height of the thermal gap corresponding to that point will be increased by 10%, that is, the height of the thermal gap at that point will be 1.1D (11mm);

[0056] If the temperature difference at any point is 2℃~﹣2℃, the difference is within a reasonable deviation range and has almost no effect on ironing clothes. Therefore, the height of the thermal gap corresponding to this point does not change, that is, the height of the thermal gap at this point is D (10mm);

[0057] If the temperature difference at any point is -5℃ to -2℃, the height of the thermal gap corresponding to that point will be reduced by 10%, that is, the height of the thermal gap at that point will be 0.9D (9mm);

[0058] If the temperature difference at any point is -10℃ to -5℃, the height of the thermal gap corresponding to that point will be reduced by 20%, that is, the height of the thermal gap at that point will be 0.8D (8mm);

[0059] If the temperature difference at any point is -20℃~-10℃, the height of the thermal gap corresponding to that point will be reduced by 30%, that is, the height of the thermal gap at that point will be 0.7D (7mm);

[0060] If the temperature difference at any point is -30℃ to -20℃, the height of the thermal gap corresponding to that point will be reduced by 50%, that is, the height of the thermal gap at that point will be 0.5D (5mm);

[0061] If the temperature difference at any point is -40℃ to -30℃, the height of the thermal gap corresponding to that point will be reduced by 80%, that is, the height of the thermal gap at that point will be 0.2D (2mm);

[0062] If the temperature difference at any point is below -40°C, the height of the thermal gap corresponding to the point is set to 0, that is, the heating base plate at the point is attached to the ironing base plate.

[0063] In the prior art, due to the limitation of the structure and distribution of the heating element 4 and the ironing sole plate 1 in the sole plate assembly of the iron, the problem is that the temperature of the part of the heating sole plate 3 close to the heating element 4 is higher, and the temperature of the part of the heating sole plate 3 far from the heating element 4 is lower, and there is a significant temperature difference, which affects the use effect. In the present invention, the physical structure of the heating sole plate 3 is redesigned, that is, by setting the raised part 6 and the recessed part 7, the height of the heat conduction gap 5 at each location between the heating sole plate 3 and the ironing sole plate 1 is changed, and the characteristic that the heat conductivity of the heating sole plate 3 itself is greater than the heat conductivity of the air in the heat conduction gap 5 is combined to coordinate the temperature of the ironing sole plate 1, so that the temperature at each location of the ironing sole plate 1 is more balanced and the temperature difference is smaller, thereby improving the ironing effect of clothes.

[0064] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An iron soleplate assembly with a balanced temperature, comprising a heating plate assembly connected to an iron body, and an ironing soleplate arranged at the lower end of the heating plate assembly, wherein the heating plate assembly comprises a heating cover plate, a heating soleplate, and a heating element arranged between the heating cover plate and the heating soleplate, characterized in that: A heat-conducting gap is provided between the heating base plate and the ironing base plate, and the height of the heat-conducting gap close to the heating element is greater than the height of the heat-conducting gap far from the heating element, and the heat conductivity of the heating base plate is greater than the heat conductivity of the air in the heat-conducting gap; The lower end surface of the heating base plate is provided with a raised portion and a recessed portion; the recessed portion is arranged near the heating element to increase the height of the heat-conducting gap corresponding to the position of the recessed portion; the raised portion is arranged far away from the heating element to reduce the height of the heat-conducting gap corresponding to the position of the raised portion; The protrusions are a plurality of protrusions protruding from the lower end surface of the heating base plate, and the height of the protrusions close to the heating element is smaller than the height of the protrusions far from the heating element; The number of the protrusions close to the heating element is smaller than the number of the protrusions far from the heating element, and the cross-sectional area of ​​the protrusions close to the heating element is smaller than the cross-sectional area of ​​the protrusions far from the heating element.

2. A method for arranging an iron sole plate assembly, comprising the iron sole plate assembly with a balanced temperature as claimed in claim 1, characterized in that: Obtain the temperature value of each point on the lower surface of the heating soleplate after preheating and compare it with the temperature value set by the iron to calculate the temperature difference, wherein the temperature value on the lower surface of the heating soleplate is positive if it is greater than the temperature value set by the iron, and negative if it is less than the temperature value set by the iron; The height of the heat-conducting gap between the heating base plate and the ironing base plate is set according to the calculated temperature difference.

3. The arrangement of the soleplate assembly of the iron according to claim 2, characterized in that: The temperature values ​​of various points on the lower surface of the heating base plate are the temperature values ​​monitored when the iron is at the highest temperature gear.

4. The arrangement of the soleplate assembly of the iron according to claim 2 or 3, characterized in that: The base height of the heat-conducting gap between the heating base plate and the ironing base plate is D; If the temperature difference at any point is above 40°C, the height of the thermal gap corresponding to that point is increased by 100%, that is, the height of the thermal gap at that point is 2D; If the temperature difference at any point is 40℃~30℃, the height of the thermal gap corresponding to the point is increased by 80%, that is, the height of the thermal gap at the point is 1.8D; If the temperature difference at any point is 30℃~20℃, the height of the thermal gap corresponding to the point is increased by 50%, that is, the height of the thermal gap at the point is 1.5D; If the temperature difference at any point is 20℃~10℃, the height of the thermal gap corresponding to the point is increased by 30%, that is, the height of the thermal gap at the point is 1.3D; If the temperature difference at any point is 10℃~5℃, the height of the thermal gap corresponding to the point is increased by 20%, that is, the height of the thermal gap at the point is 1.2D; If the temperature difference at any point is 5℃~2℃, the height of the thermal gap corresponding to the point is increased by 10%, that is, the height of the thermal gap at the point is 1.1D; If the temperature difference at any point is 2℃~﹣2℃, the height of the thermal gap corresponding to the point does not change, that is, the height of the thermal gap at the point is D; If the temperature difference at any point is -5℃ to -2℃, the height of the thermal gap corresponding to the point will be reduced by 10%, that is, the height of the thermal gap at the point will be 0.9D; If the temperature difference at any point is -10℃~-5℃, the height of the thermal gap corresponding to the point will be reduced by 20%, that is, the height of the thermal gap at the point will be 0.8D; If the temperature difference at any point is -20℃~-10℃, the height of the thermal gap corresponding to the point will be reduced by 30%, that is, the height of the thermal gap at the point is 0.7D; If the temperature difference at any point is -30℃~-20℃, the height of the thermal gap corresponding to the point will be reduced by 50%, that is, the height of the thermal gap at the point is 0.5D; If the temperature difference at any point is -40℃~-30℃, the height of the thermal gap corresponding to the point will be reduced by 80%, that is, the height of the thermal gap at the point is 0.2D; If the temperature difference at any point is below -40°C, the height of the thermal gap corresponding to the point is set to 0, that is, the heating base plate at the point is attached to the ironing base plate.

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