Pot support and stove

Abstract

The utility model discloses a pot support and kitchen range relates to kitchen range technical field, the pot support includes the support body, the support body encloses the centre hole, the support body includes the upper plate and the lower plate, and the isolation space is formed between the upper plate and the lower plate, a plurality of isolation bosses are arranged on the inner edge and / or the outer edge of the isolation space at intervals, and the upper disc is installed on the lower disc through the isolation bosses. According to the technical scheme, the heat dissipation efficiency of the upper plate can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a pot support and stove. Background Technology

[0002] In existing technologies, pot supports typically consist of a separately manufactured upper plate and a lower plate, with their side edges joined together by welding. This design suffers from a high heat loss rate in the upper plate, resulting in significant heat loss and consequently, lower stove thermal efficiency and energy efficiency. Utility Model Content

[0003] The main purpose of this invention is to provide a pot support and stove that aims to reduce the heat loss efficiency of the upper plate.

[0004] To achieve the above objectives, the present invention proposes a pot support, which includes a support body with a central hole. The support body includes an upper plate and a lower plate, and an isolation space is formed between the upper plate and the lower plate. The inner edge and / or outer edge of the isolation space are provided with a plurality of isolation protrusions at intervals. The upper plate is mounted on the lower plate through the isolation protrusions.

[0005] In one embodiment, a plurality of the isolation bosses are circumferentially spaced at the outer edge of the support body, and the upper plate and the lower plate are spaced at their inner edges by an annular gap, the annular gap communicating with the inner edge of the isolation space.

[0006] In one embodiment, the pot support further includes an upper support disposed on the support body, the top surface of the upper support protruding from the upper surface of the support body and having a bearing surface for supporting the heating element, the center of the bearing surface being radially close to the outer edge of the support body.

[0007] In one embodiment, the upper plate includes a first plate body and a second plate body disposed below the first plate body, the first plate body and the second plate body being connected at least at their inner and outer edges, and the upper support being disposed on the first plate body.

[0008] In one embodiment, the first disc and the second disc together enclose the upper heat insulation cavity.

[0009] In one embodiment, the lower plate includes a third plate and a fourth plate disposed below the third plate. The third plate and the fourth plate are connected at least at their inner and outer edges, and together they enclose a lower heat insulation cavity.

[0010] In one embodiment, an external air passage is formed between two adjacent isolation bosses. The external air passage connects to the outer edge of the isolation space, and the external air passage, the isolation space, and the annular gap together constitute an air replenishment channel.

[0011] In one embodiment, the external air passage includes a first channel and a second channel distributed radially from the outside to the inside. The first channel extends radially, and the second channel extends downward from the outside to the inside. The isolation boss includes a first protrusion and a second protrusion. The first protrusion is disposed corresponding to the first channel, and the second protrusion is disposed corresponding to the second channel.

[0012] In one embodiment, the first protrusion and the second protrusion are disposed on the lower side of the upper plate; or, the first protrusion and the second protrusion are disposed on the upper side of the lower plate; or, one of the first protrusion and the second protrusion is disposed on the upper side of the lower plate, and the other is disposed on the lower side of the upper plate.

[0013] In one embodiment, the first protrusion and the second protrusion are connected.

[0014] In one embodiment, the isolation boss is integrally formed on the lower side of the upper plate or the upper side of the lower plate (120).

[0015] In one embodiment, an air supply channel is provided between the upper and lower plates. The air supply channel includes an air inlet section, a preheating section, and an air outlet section connected radially from the outside to the inside. The air inlet section is connected to the outer peripheral space of the pot support, and the air outlet section is connected to the central hole. The vertical width of the preheating section is greater than the vertical width of the air inlet section, and / or the vertical width of the preheating section is greater than the vertical width of the air outlet section.

[0016] In one embodiment, the vertical width of the air intake section ranges from 1 mm to 6 mm.

[0017] In one embodiment, the vertical width of the air outlet section ranges from 1 mm to 6 mm.

[0018] In one embodiment, the vertical width of the preheating section is greater than or equal to 5 mm.

[0019] In one embodiment, the inner edge of the upper surface of the upper plate is lower than the outer edge, and the preheating section extends downward first and then upward in a radial direction from the outside to the inside.

[0020] In one embodiment, the gas outlet section extends radially, and the outlet of the gas outlet section is located above the burner of the stove.

[0021] In one embodiment, the vertical width of the air intake section is 3 mm.

[0022] In one embodiment, the vertical width of the air outlet section is 2 mm.

[0023] In one embodiment, the ratio of the vertical width of the preheating section to the vertical width of the air outlet section is greater than 2.

[0024] In one embodiment, the ratio of the radial length of the preheating section to the radial length of the air outlet section is greater than 3.

[0025] This utility model also proposes a stove, including the aforementioned pot support.

[0026] In this invention, the upper and lower plates are partially in contact via an isolation boss, which separates most of their areas vertically. Compared to full contact through welding around the inner and outer edges, this significantly reduces the heat transfer path between the upper and lower plates, thereby lowering the heat loss rate of the upper plate. Secondly, a large isolation space filled with air is provided between the upper and lower plates. Utilizing the poor thermal conductivity of air, this space prevents heat from the upper plate from being conducted downwards, ensuring that as much heat generated by the burner as possible remains on the upper plate and is transferred to the cookware, thus improving the stove's thermal efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of an embodiment of the pot support provided by this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the upper and lower plates after separation in the embodiment shown;

[0030] Figure 3 for Figure 1 A structural diagram of the upper part of the structure from a low-angle view;

[0031] Figure 4 for Figure 1 The structure shown is installed behind the stove;

[0032] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0033] Figure 6 for Figure 1 Another sectional view of the structure shown installed behind the stove;

[0034] Figure 7 for Figure 6 A magnified view of a section at point B.

[0035] Explanation of icon numbers:

[0036] 100. Support body; 101. Central hole; 102. Isolation space; 103. Annular gap; 104. External air passage; 104a. First passage; 104b. Second passage; 105. Air supply passage; 106. Air inlet section; 107. Preheating section; 108. Air outlet section; 110. Upper plate; 111. First plate; 112. Second plate; 113. Upper insulation cavity; 120. Lower plate; 121. Third plate; 122. Fourth plate; 123. Lower insulation cavity; 130. Isolation boss; 131. First protrusion; 132. Second protrusion;

[0037] 200, Upper support; 201, Bearing surface; 300, Burner; 301, Central combustion section; 302, Outer ring combustion section; 303, Lower supplementary channel.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] This utility model proposes a pot support. Please refer to [link / reference]. Figure 1 and Figure 2 In one embodiment of the present invention, the pot support includes a support body 100, the support body 100 includes an upper plate 110 and a lower plate 120, and the upper plate 110 is installed above the lower plate 120.

[0043] Generally speaking, a pot support is typically mounted on the saucer of a stove and is used to support items to be heated, such as cookware or pots (including but not limited to frying pans, woks, etc.). The pot support has a central hole 101 in the middle, which is typically used to house the burner 300 of the stove (also called a burner cap or flame spreader) and to allow the flame generated by the burner 300 to act on the bottom surface of the cookware. That is, the upper plate 110 and the lower plate 120 are coaxially arranged around the outer periphery of the burner 300, with the lower plate 120 located on the side of the upper plate 110 away from the pot, i.e., below the upper plate 110.

[0044] It is understandable that when the flame spreads over a large area, the flame will directly contact the upper plate 110 of the pot support and transfer heat to the upper plate 110, thus heating the upper plate 110 to a higher temperature. If a good heat conduction path is allowed between the upper plate 110 and the lower plate 120, some of the heat from the flame will be continuously transferred through this heat conduction path to the lower plate 120, the liquid tray, and the cooktop surface. At the same time, the heat will be dissipated into the air through the lower plate 120, the liquid tray, and the cooktop surface, which is not conducive to maintaining a high thermal efficiency level for the cooktop.

[0045] To reduce the rate of heat loss from the upper plate 110 and thus improve the cooktop's thermal efficiency, please refer to... Figures 3 to 5Optionally, the bracket body 100 is provided with a plurality of isolation bosses 130 at intervals on its inner edge and / or outer edge, and the upper plate 110 is mounted on the lower plate 120 through the isolation bosses 130 to form an isolation space 102 between the upper plate 110 and the lower plate 120.

[0046] Thus, the upper plate 110 and the lower plate 120 make partial contact through the isolation boss 130, which allows most areas of the upper plate 110 and the lower plate 120 to be separated in the vertical direction. Compared with the full contact method through welding of the inner and outer perimeters, the heat conduction path between the upper plate 110 and the lower plate 120 is significantly reduced, thereby reducing the heat loss rate of the upper plate 110. Secondly, a large isolation space 102 is provided between the upper plate 110 and the lower plate 120. This isolation space 102 is filled with air, which can utilize the poor thermal conductivity of air to block the downward conduction of heat energy from the upper plate 110. This allows as much of the heat generated by the burner 300 combustion as possible to remain in the upper plate 110 and be transferred to the cookware, thereby improving the thermal efficiency of the stove.

[0047] It should be noted that the inner edge of the support body 100 refers to the edge closest to the central hole 101, and correspondingly, the outer edge of the support body 100 refers to the edge furthest from the central hole 101. That is, the outer edge and inner edge of the support body 100 are distributed sequentially from the outside to the inside in the radial direction of the pot support.

[0048] Please see Figure 5 Optionally, the upper plate 110 is provided with an upper heat insulation cavity 113, and the lower plate 120 is provided with a lower heat insulation cavity 123. Specifically, the upper heat insulation cavity 113 is located above the isolation space 102, and the lower heat insulation cavity 123 is located below the isolation space 102. Both the upper heat insulation cavity 113 and the lower heat insulation cavity 123 are filled with air. Thus, the upper heat insulation cavity 113, the isolation space 102, and the lower heat insulation cavity 123 together constitute a three-layer air insulation layer structure distributed from top to bottom, so as to further reduce the heat loss rate of the upper plate 110 and improve the thermal efficiency of the stove. Of course, in other embodiments, the upper heat insulation cavity 113 and the lower heat insulation cavity 123 may not be provided, or only one of the upper heat insulation cavity 113 and the lower heat insulation cavity 123 may be provided.

[0049] It should be noted that in this embodiment, the formation method of the three-layer air insulation layer of the support body 100 is rather special. First, the upper insulation cavity 113 is constructed using the structure of the upper plate 110 itself, and the lower insulation cavity 123 is constructed using the structure of the lower plate 120 itself. Then, the isolation space 102 is constructed by assembling the upper plate 110 and the lower plate 120 into the support body 100. In this way, the formation of the three-layer air insulation layer of the support body 100 is easy to achieve and the structure is simple.

[0050] Please see Figure 5Optionally, multiple isolation bosses 130 are circumferentially spaced along the outer edge of the support body 100, and the upper plate 110 and lower plate 120 are spaced together by annular gaps 103 at their inner edges, the annular gaps 103 connecting to the inner edge of the isolation space 102. That is, in this embodiment, isolation bosses 130 are only provided on the outer edge of the support body 100, and no isolation bosses 130 are provided on the inner edge of the support body 100. In this way, on the one hand, the heat conduction path between the upper plate 110 and the lower plate 120 can be further reduced, thereby reducing the heat dissipation rate of the upper plate 110. On the other hand, the structure is simple and easy to manufacture the support body 100.

[0051] Of course, in other embodiments, the isolation boss 130 may be provided only on the inner edge of the support body 100, and the isolation boss 130 may not be provided on the outer edge of the support body 100; or, the isolation boss 130 may be provided on both the inner and outer edges of the support body 100.

[0052] To increase the stability of the structure containing the annular gap 103, please refer to Figure 5 Optionally, the pot support also includes an upper support 200 disposed on the support body 100. The top surface of the upper support 200 protrudes from the upper surface of the support body 100 and has a bearing surface 201 for supporting the item to be heated. The center of the bearing surface 201 is radially close to the outer edge of the support body 100. Specifically, the upper support 200 is also referred to as a furnace ear. The item to be heated, such as a pot, can be suspended above the burner 300 by being supported by the upper support 200. In this embodiment, since the bearing surface 201 of the upper support 200 is closer to the outer edge of the support body 100, and the isolation boss 130 is disposed on the outer edge of the support body 100, the weight of the pot borne by the upper support 200 can be directly transferred to the lower plate 120 through the isolation boss 130, so as to better maintain the structural stability of the upper plate 110, thereby keeping the annular gap 103 located at the inner edge of the support body 100 stable in shape. That is, it can avoid the problem of the upper plate 110 and the lower plate 120 having a large contact area at the inner edge due to the failure of the annular gap 103, which would increase the heat dissipation efficiency of the upper plate 110. Of course, in other embodiments, the center of the bearing surface 201 may be closer to the inner edge of the support body 100 in the radial direction, or the center of the bearing surface 201 may be centrally located in the radial direction.

[0053] Optionally, the upper plate 110 includes a first plate 111 and a second plate 112 formed in a split manner. The first plate 111 and the second plate 112 are connected and together enclose the upper heat insulation cavity 113. This facilitates the manufacturing and forming of the upper plate 110. Secondly, of course, in other embodiments, the upper plate 110 may be integrally formed to form the upper heat insulation cavity 113, or the upper plate 110 may be composed of three or more parts assembled together.

[0054] Please see Figure 5 Optionally, the first disc 111 and the second disc 112 are distributed from top to bottom, and the first disc 111 and the second disc 112 are connected at least at their inner and outer edges. The upper support 200 is provided on the first disc 111. That is, in this embodiment, the upper disc 110 is composed of two parts distributed vertically, and the splicing seam of the upper disc 110 can be well concealed at its outer and inner periphery, thereby improving the aesthetics and ease of cleaning of the upper disc 110. Secondly, in this embodiment, the upper disc 110 is a double-layer disc structure, which has good structural strength and rigidity, thus further improving the morphological stability of the annular gap 103 at the inner edge of the support body 100. Furthermore, the upper heat insulation cavity 113 is a closed cavity, and the air inside it will not undergo heat convection and heat exchange with the outside air, thereby achieving better heat insulation effect. The structure is simple and easy to implement. Optionally, the first disc 111 and the second disc 112 are fixed together by welding at their inner and outer edges.

[0055] Of course, in some other embodiments, the first disc 111 and the second disc 112 may be radially distributed. In still other embodiments, the upper disc 110 may not be a double-layer disc structure, but rather a single-layer disc structure. In other embodiments, the first disc 111 and the second disc 112 may be assembled into one piece by means of screws or snap-fit ​​structures.

[0056] Optionally, the lower plate 120 includes a third plate 121 and a fourth plate 122 formed separately, which are connected and together enclose the lower heat insulation cavity 123. This facilitates the manufacturing and forming of the lower plate 120. Alternatively, in other embodiments, the lower plate 120 may be integrally formed to form the lower heat insulation cavity 123, or the lower plate 120 may be assembled from three or more parts.

[0057] Please see Figure 5Optionally, the third disc 121 and the fourth disc 122 are distributed from top to bottom, and are connected at least at their inner and outer edges. That is, in this embodiment, the lower disc 120 is composed of two parts distributed vertically, and the seam of the lower disc 120 can be well concealed at its outer and inner periphery, thereby improving the aesthetics and ease of cleaning of the lower disc 120. Secondly, in this embodiment, the lower disc 120, as a double-layer disc structure, has good structural strength and rigidity, thus further improving the morphological stability of the annular gap 103 at the inner edge of the support body 100. Furthermore, the lower insulation cavity 123 is a sealed chamber, and the air inside does not undergo heat convection and heat exchange with the outside air, thereby achieving better heat insulation and preservation effects. The structure is simple and easy to implement. Optionally, the third disc 121 and the fourth disc 122 are fixed together by welding at their inner and outer edges.

[0058] Of course, in other embodiments, the third disc 121 and the fourth disc 122 may be radially distributed. In still other embodiments, the lower disc 120 may not be a double-layer disc structure, but rather a single-layer disc structure. In other embodiments, the third disc 121 and the fourth disc 122 may also be assembled into one piece by means of screws or snap-fit ​​structures.

[0059] Optionally in this embodiment, the upper plate 110 is detachably mounted on the lower plate 120. That is, the second plate 112 of the upper plate 110 is directly mounted on the upper side of the third plate 121 of the lower plate 120 via the isolation boss 130. This facilitates cleaning of the upper plate 110 and the lower plate 120 by the user. Of course, in other embodiments, the upper plate 110 and the lower plate 120 can also be welded together or assembled together with screws.

[0060] Please see Figure 6 and Figure 7Optionally, an external air passage 104 is formed between two adjacent isolation protrusions 130. The external air passage 104 connects to the outer edge of the isolation space 102. The external air passage 104, the isolation space 102, and the annular gap 103 together constitute the air supply passage 105. In this way, the air in the isolation space 102 expands when heated and flows along the annular gap 103 to the burner 300 located in the central hole 101, and participates in combustion. Since this part of the air is preheated in the isolation space 102, its participation in combustion can increase the flame temperature to a certain extent, thereby further improving the combustion thermal efficiency. When the isolation space 102 generates negative pressure due to the air flowing from its interior to the central hole 101, fresh air located outside the pot support can be supplied into the isolation space 102 through the external air passage 104, and after being preheated in the isolation space 102, it flows to the burner 300. That is, in this embodiment, the isolation space 102 is reused as part of the air supply channel 105, which can form a secondary air channel for air to flow to the burner 300.

[0061] Of course, in some other embodiments, an additional air supply channel 105 may be provided outside the isolation space 102, with the isolation space 102 and the air supply channel 105 being separated from each other. In other embodiments, the external air supply channel 104 and the air supply channel 105 may not be provided; for example, heat insulation material may be filled in the gap between two adjacent isolation bosses 130.

[0062] Please see Figure 6 and Figure 7 Optionally, the external air passage 104 includes a first passage 104a and a second passage 104b arranged radially from the outside to the inside. The first passage 104a extends radially, and the second passage 104b extends downward from the outside to the inside. The isolation boss 130 includes a first protrusion 131 and a second protrusion 132. The first protrusion 131 is disposed corresponding to the first passage 104a, and the second protrusion 132 is disposed corresponding to the second passage 104b. Thus, the first protrusion 131 mainly serves to support the upper plate 110, and the second protrusion 132 mainly serves to restrict the lateral movement of the upper plate 110. That is, the upper plate 110 can be stably mounted on the lower plate 120 through the second protrusion 132. Of course, in other embodiments, only the first protrusion 131 or the second protrusion 132 may be provided.

[0063] Please see Figure 3 and Figure 5Optionally, the first protrusion 131 and the second protrusion 132 are located on the lower side of the upper plate 110. This results in a simple and easy-to-implement structure. Furthermore, in the embodiment where the upper plate 110 is detachably mounted on the lower plate 120, when the user removes the upper plate 110, the isolation protrusion 130 on the lower side of the upper plate 110 is not easily observed, and the upper side of the lower plate 120 appears cleaner due to the absence of the isolation protrusion 130. Of course, in other embodiments, the first protrusion 131 and the second protrusion 132 may be located on the upper side of the lower plate 120, or one of the first protrusion 131 and the second protrusion 132 may be located on the upper side of the lower plate 120, and the other on the lower side of the upper plate 110.

[0064] Please see Figure 3 Optionally, the first protrusion 131 and the second protrusion 132 are connected, and the upper plate 110 is integrally formed with the first protrusion 131 and the second protrusion 132 facing the isolation space 102. That is, the isolation boss 130 is approximately L-shaped in longitudinal section, and the isolation boss 130 is integrally formed on the lower side of the upper plate 110. For example, the lower side of the upper plate 110 is formed by partial stamping of the isolation boss 130. In this way, the structure is simple and easy to implement. Of course, in other embodiments, the first protrusion 131 and the second protrusion 132 may be spaced apart, or the first protrusion 131 and the second protrusion 132 may be independently formed structures and assembled on the upper plate 110 by welding or riveting.

[0065] Please see Figure 6 and Figure 7 Optionally, an air supply channel 105 is provided between the upper plate 110 and the lower plate 120. The air supply channel 105 includes an air inlet section 106, a preheating section 107 and an air outlet section 108 connected in sequence from the outside to the inside in the radial direction. The air inlet section 106 is connected to the outer peripheral space of the pot support, and the air outlet section 108 is connected to the central hole 101 (i.e., the inner peripheral space of the pot support).

[0066] Specifically, after the air in the preheating section 107 of the air supply channel 105 expands due to heat, it flows along the air outlet section 108 to the burner 300 located in the central hole 101 and participates in combustion. Since this part of the air is preheated in the preheating section 107, its participation in combustion can increase the flame temperature to a certain extent, thereby further improving the combustion thermal efficiency. When the preheating section 107 generates negative pressure due to the air flowing from its interior to the central hole 101, fresh air located around the pot support can be supplied to the preheating section 107 through the air inlet section 106, and after being preheated in the preheating section 107, it flows to the burner 300. That is, the air supply channel 105 can form a secondary air channel for air to flow to the burner 300.

[0067] Please see Figure 5 and Figure 7 In an embodiment where the boiler support includes an external air passage 104, an isolation space 102, and an annular gap 103, optionally, the external air passage 104 is configured as an air inlet section 106, the isolation space 102 is configured as a preheating section 107, and the annular gap 103 is configured as an air outlet section 108. That is, in this embodiment, the isolation space 102 is reused as part of the air replenishment channel 105. Of course, in other embodiments, the isolation space 102 may not be provided, and only the air replenishment channel 105 may be provided.

[0068] Please see Figure 7 Optionally, the vertical width of the preheating section 107 is greater than the vertical width of the intake section 106. It is understood that a larger vertical width in the preheating section 107 is beneficial for improving the preheating effect of the air inside. Specifically, the vertical width of the intake section 106 can range from 1mm to 6mm, and the vertical width of the preheating section 107 can be greater than or equal to 5mm. For example, the vertical width of the intake section 106 can be 3mm (e.g.,...). Figure 7 As indicated by L1 in the diagram, the vertical width of the preheating section 107 is 5 mm. It should be noted that the vertical width refers to the average width of the cross-sectional shape of the air supply channel 105 perpendicular to the airflow direction in the vertical direction. For example, please refer to... Figure 7 , Figure 7 L3 and L4 indicate the vertical width at different positions on the preheating section 107, with both L3 and L4 being greater than 5mm.

[0069] Thus, on the one hand, the air intake section 106 has a relatively small vertical width, which can prevent the air in the preheating section 107 from significantly leaking out to the outer periphery of the pot support through the air intake section 106. That is, a relatively stable air layer is established in the area where the preheating section 107 is located, thereby improving the heat insulation effect of the air intake section 106 and the preheating section 107. On the other hand, if the vertical width of the air intake section 106 is too small, it may be easy for the upper plate 110 and the lower plate 120 to directly contact and conduct heat at the air intake section 106.

[0070] Please see Figure 7 Optionally, the vertical width of the preheating section 107 is greater than the vertical width of the air outlet section 108. Specifically, the vertical width of the air outlet section 108 can range from 1mm to 6mm; for example, the vertical width of the air outlet section 108 can be 2mm (e.g., ...). Figure 7 (As indicated by L2 in the middle). Thus, the smaller vertical width of the exhaust section 108 is beneficial for increasing the air velocity in the preheating section 107 as it flows through the exhaust section 108, so that the preheated air can accelerate its flow to the burner 300. On the other hand, if the vertical width of the intake section 106 is too small, it may be easy for the upper plate 110 and the lower plate 120 to come into direct contact and conduct heat at the intake section 106.

[0071] Of course, in other embodiments, the vertical widths of the intake section 106, preheating section 107, and exhaust section 108 can also be other ranges. For example, the vertical widths of the intake section 106 and exhaust section 108 can be 7mm to 15mm, and the vertical width of the preheating section 107 can be less than 5mm. In other embodiments, only one of the intake section 106 and exhaust section 108 can have a vertical width less than the vertical width of the preheating section 107, while the other has a vertical width greater than or equal to the vertical width of the preheating section 107.

[0072] Optionally, the ratio of the vertical width of the preheating section 107 to the vertical width of the air outlet section 108 is greater than 2, and the ratio of the radial length of the preheating section 107 to the radial length of the air outlet section 108 is greater than 3. It should be noted that the radial length refers to the projected length of the cross-sectional shape of the air supply channel 105 on the longitudinal section passing through the axis of the central hole 101 onto the horizontal plane. Thus, the preheating section 107 has a large radial length and vertical width, allowing it to have a sufficiently large volume to accommodate and preheat a large amount of air, thereby improving the preheating effect of the preheating section 107 on the secondary air. Of course, in other embodiments, the ratio of the vertical width of the preheating section 107 to the vertical width of the air outlet section 108 can also be other values, for example, less than or equal to 2; the ratio of the radial length of the preheating section 107 to the radial length of the air outlet section 108 can also be other values, for example, less than or equal to 3.

[0073] Please see Figure 7 Optionally, the inner edge of the upper surface of the upper plate 110 is lower than the outer edge, and the preheating section 107 extends downwards first and then upwards in a radial direction from the outside to the inside. Specifically, Figure 7 The preheating section 107, indicated by L3, extends downwards at an angle, while the preheating section 107, indicated by L4, extends upwards at an angle. Thus, in the radial direction from the outside to the inside, the upper surface of the upper plate 110 tends to extend downwards at an angle, forming a recessed groove. This allows the flame generated by the burner 300 to be better concentrated in the central hole 101 and its surrounding area, creating a high-temperature zone between the upper plate 110 and the bottom of the pot, which helps improve the thermal efficiency of the stove. Furthermore, in the radial direction from the outside to the inside, the preheating section 107 extends downwards at an angle and then upwards to connect with the exhaust section 108, allowing for a higher outlet height for the exhaust section 108 and facilitating smoother airflow from the preheating section 107 to the burner 300.

[0074] Please see Figure 6 and Figure 7Optionally, the gas outlet section 108 extends radially, and the outlet of the gas outlet section 108 is located above the burner 300 of the stove. In this way, the outlet of the gas outlet section 108 can be placed closer to the upper surface of the burner 300, so that the air flowing through the gas supply channel 105 can flow directly to the high-temperature zone above the burner 300 and participate in combustion.

[0075] Of course, in other embodiments, both the preheating section 107 and the gas outlet section 108 may extend radially, or the outlet of the gas outlet section 108 may be located to the side or below the burner 300 of the stove.

[0076] This utility model also proposes a stove, which includes a pot support. The specific structure of the pot support is as described in the above embodiments. Since this stove adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0077] Please see Figure 6 and Figure 7 Furthermore, the stove also includes a burner 300, which is disposed in the central hole 101 of the pot support (i.e., the pot support surrounds the outer periphery of the burner 300), and includes a central combustion section 301 (i.e., a central burner cap) and an outer ring combustion section 302 (i.e., an outer ring burner cap). A lower supplementary channel 303 is formed between the inner edge of the lower plate 120 and the outer edge of the outer ring combustion section 302. Fresh air located below the lower plate 120 can flow to the outer ring combustion section 302 through this lower supplementary channel 303; that is, this lower supplementary channel 303 also constitutes a secondary air passage for airflow to the burner 300. Please refer to [link / reference]. Figure 6 The lower air supply channel 303 and the air supply channel 105 simultaneously serve as two independent secondary air channels, allowing fresh air to flow from the outer periphery and bottom of the boiler support to the burner 300. Figure 6 The direction of secondary air flow is indicated by arrows and thin solid line segments.

[0078] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pot support, characterized in that, The pot support includes a support body with a central hole. The support body includes an upper plate and a lower plate, and an isolation space is formed between the upper plate and the lower plate. Multiple isolation bosses are provided at intervals on the inner edge and / or outer edge of the isolation space. The upper plate is mounted on the lower plate through the isolation bosses.

2. The pot support as described in claim 1, characterized in that, Multiple isolation bosses are circumferentially spaced on the outer edge of the support body, and the upper plate and the lower plate are spaced together by an annular gap at their inner edges, the annular gap connecting to the inner edge of the isolation space.

3. The pot support as described in claim 2, characterized in that, The pot support also includes an upper support disposed on the support body. The top surface of the upper support protrudes from the upper surface of the support body and has a bearing surface for supporting the heating element. The center of the bearing surface is radially close to the outer edge of the support body.

4. The pot support as described in claim 3, characterized in that, The upper plate includes a first plate body and a second plate body disposed on the lower side of the first plate body. The first plate body and the second plate body are connected at least at their inner and outer edges. The upper support is disposed on the first plate body.

5. The pot support as described in claim 4, characterized in that, The first and second discs together enclose the upper heat insulation cavity; And / or, the lower plate includes a third plate and a fourth plate disposed below the third plate, the third plate and the fourth plate being connected at least at their inner and outer edges, and the third plate and the fourth plate together enclosing the lower heat insulation cavity.

6. The pot support as described in claim 2, characterized in that, An external air passage is formed between two adjacent isolation protrusions. The external air passage connects to the outer edge of the isolation space. The external air passage, the isolation space, and the annular gap together constitute an air replenishment channel.

7. The pot support as described in claim 6, characterized in that, The external air passage includes a first channel and a second channel distributed radially from the outside to the inside. The first channel extends radially, and the second channel extends downward from the outside to the inside. The isolation boss includes a first protrusion and a second protrusion. The first protrusion is disposed corresponding to the first channel, and the second protrusion is disposed corresponding to the second channel.

8. The pot support as described in claim 7, characterized in that, The first protrusion and the second protrusion are disposed on the lower side of the upper plate; or, the first protrusion and the second protrusion are disposed on the upper side of the lower plate; or, one of the first protrusion and the second protrusion is disposed on the upper side of the lower plate, and the other is disposed on the lower side of the upper plate. And / or, the first protrusion and the second protrusion are connected.

9. The pot support as described in claim 1, characterized in that, The isolation boss is integrally formed on the lower side of the upper plate or the upper side of the lower plate.

10. A stove, characterized in that, Includes the pot support as described in any one of claims 1 to 9.

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