CN211822617U

CN211822617U - Heat shield for stove

Info

Publication number: CN211822617U
Application number: CN201921338399.9U
Authority: CN
Inventors: 徐强; 刘晓刚; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-10-30
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to a kitchen is with separating heat exchanger, including the cover body, the cover body is including upper cover and the lower floor's cover that closes each other, and upper cover and lower floor's cover between at least the part be formed with cavity, its characterized in that: the cavity in be provided with upper cover and lower floor's cover connect integrative connection structure, compare with prior art, the utility model has the advantages of upper cover and lower floor's cover can dismantle for dividing the body structure to in inside anticorrosive treatment, in addition, upper cover and lower floor's cover are direct to be fixed at the last connecting seat and the lower connecting seat that separate heat exchanger stabilizer blade department through the connecting piece setting that will correspond, and heat-conduction area of contact is little.

Description

Heat shield for stove

Technical Field

The utility model relates to a domestic kitchen utensils and appliances technical field especially relates to a kitchen is with separating heat exchanger.

Background

In the actual use process of the existing gas stove, because a pot is placed on a pot support for heating, and a certain space interval is formed between the pot and a burner, a part of heat energy generated by gas combustion is escaped to the surrounding environment except for heating the pot, so that energy waste is caused; in order to solve the problems, some heat collecting and energy gathering structures appear in China in recent years, for example, the Chinese utility model 'a heat shield for a stove and a stove using the heat shield for the stove' applied by the applicant, ZL201721665758.2(CN207962760U) discloses an annular cover body, which is characterized in that: the cover body is the bilayer structure who constitutes by upper cover and lower floor's cover, the bottom of lower floor's cover has concave convex structure and forms downward bellied protruding muscle, on the basis of current gas-cooker, add the kitchen and use thermal-insulated cover, the cover body is the bilayer structure who constitutes by upper cover and lower floor's cover, the bottom of lower floor's cover has concave convex structure and forms downward bellied protruding muscle, utilize concave convex structure to form the bottom partition of lower floor's cover and become the passageway of preheating secondary air, promote the gas combustion and improve the gas utilization ratio, it is thermal-insulated in order to realize, it needs to form cavity to separate the thermal-insulated cover. At present, a plurality of parts are mainly used for mounting to form a cavity, but the number of the parts is large, so that errors are accumulated, and further the machining precision of each part needs to be improved. And the flanging of the sheet metal part is directly utilized for riveting and fixing, so that the sheet metal part cannot be disassembled, and the technical problem that the inside cannot be subjected to anticorrosive treatment such as spraying exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a thermal shroud for kitchen range that can also avoid the heat source to conduct downwards under the prerequisite that can satisfy easy to assemble is provided to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this kitchen is with separating heat exchanger, including the cover body, the cover body is including upper cover and the lower floor's cover that closes each other, and upper cover and lower floor cover between at least the part be formed with cavity, its characterized in that: and a connecting structure for connecting the upper layer cover and the lower layer cover into a whole is arranged in the cavity.

The lower cover has downwardly extending legs at a bottom wall corresponding to the cavity. The feet are arranged below the bottom wall of the cavity, so that heat conduction to the feet can be effectively reduced due to the obstruction of the cavity, thereby not only avoiding heat dissipation and improving the energy gathering effect of the heat shield, but also effectively avoiding the damage to a supporting surface (such as a cooker panel) due to the high temperature of the feet,

the connecting structure adopts the following mode: the upper layer cover is provided with an upper connecting seat extending downwards on the inner wall corresponding to the cavity, and the connecting piece penetrates through the support legs from bottom to top and is connected with the upper connecting seat into a whole.

In order to reduce the number of mounting parts, it is preferable that the legs have a recessed cavity recessed from bottom to top to have a longitudinal section in a zigzag shape, a lower connecting seat is provided in the recessed cavity, and a connecting member penetrates the lower connecting seat from bottom to top to be integrally connected with the upper connecting seat. The connecting structure is arranged in the cavity, so when heat is conducted to the upper connecting seat from the pot bottom through the pot support legs and the upper layer cover, the heat is dissipated in the cavity, and heat conducted to the connecting piece and the lower connecting seat is reduced.

Furthermore, the upper connecting seat is embedded with a nut seat, and the connecting piece is a screw and is in threaded connection with the nut seat.

Furthermore, the upper connecting seat is provided with a groove for embedding the nut seat, the nut seat comprises an inserting part inserted into the groove and a clamping part clamped outside the groove, and the inserting part is provided with a threaded hole matched with the limiting screw.

In order to be able to give the connecting piece a certain mounting adjustability when mounting, it is preferred that the edge of the insert part tapers in the insertion direction of the nut socket. So that the insertion portion can move relative to the groove.

Besides the above structure, the nut seat may also be: the upper connecting seat is provided with a groove for the nut seat to be embedded, the nut seat is an elastic sheet, two sides of the elastic sheet are provided with bending edges to form elastic feet which can be clamped in the groove, and the elastic sheet is provided with a threaded hole suitable for the limiting screw. The elastic foot can be firmly arranged in the groove to avoid falling off in the installation process, the elastic sheet can be a flexible elastic sheet, and the elastic sheet is provided with the elastic foot which can be clamped in the groove, so that the elastic sheet can be relatively thinner to reduce the contact area of heat conduction.

Further, the insertion holes of the support legs are detachably connected with the support legs. The foot pad can avoid impact and sliding between the heat insulation cover and the liquid containing disc or the cooker panel, and has the advantages of shock absorption, buffering and damping increase.

Compared with the prior art, the utility model has the advantages of upper cover and lower floor's cover can be dismantled for the components of a whole that can function independently structure to in inside anticorrosive treatment, in addition, upper cover and lower floor's cover directly set up the connection structure in the cavity and connect integratively, with further reducing heat conduction to lower floor's cover, also avoided the damage that causes because of the heat conduction of lower floor's cover to bearing surface (for example cooking utensils panel) effectively.

Drawings

Fig. 1 is a schematic structural view of a heat shield for a range according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at one angle;

FIG. 3 is a schematic view of another angle of FIG. 1;

FIG. 4 is a cross-sectional view at an angle of FIG. 1;

FIG. 5 is a cross-sectional view at another angle from FIG. 1;

fig. 6 is a schematic structural view of an angle of the upper layer cover in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a lower layer cover in embodiment 1 of the present invention;

FIG. 8 is a schematic view of the bottom of the lower housing of FIG. 7;

FIG. 9 is a schematic view of the lower housing of FIG. 7 at another angle;

fig. 10 is a schematic structural view of a nut seat in embodiment 1 of the present invention;

fig. 11 is a schematic structural view of a nut seat in embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 10, the preferred embodiment of the present invention is shown. The heat shield for the kitchen range in the embodiment comprises a shield body 1 which is surrounded to form a central hole, the shield body 1 comprises an upper layer shield 11 and a lower layer shield 12 which are mutually combined, a cavity 10 is at least partially formed between the upper layer shield 11 and the lower layer shield 12, the lower layer shield 12 is provided with a support leg 121 which extends downwards and corresponds to the bottom wall of the cavity 10, and the support leg 121 is only arranged below the bottom wall of the cavity 10, so that heat conduction to the support leg 121 can be effectively reduced due to the obstruction of the cavity 10, thereby not only avoiding heat dissipation and improving the energy gathering effect of the heat shield, but also effectively avoiding damage to a supporting surface (such as a kitchen range panel) due to the high temperature of the support leg 121, and in order to further reduce heat conduction to the support leg 121, the upper layer shield 11 is also provided with a pot support leg 111 which extends. Thus, when heat is conducted from the bottom of the pan to the pan leg 111, the heat on the pan leg 111 is not easily conducted to the leg 121 through the upper cover 11 and the lower cover 12 due to the cavity 10. The pan legs 111 and the legs 121 may be vertically aligned for visual uniformity, which is more convenient for the heat shield to be accurately placed on the cooktop, or may be misaligned by simply allowing both the pan legs 111 and the legs 121 to correspond to the cavities 10, which is described in the embodiment with the pan legs 111 and the legs 121 aligned. Because the pan supporting legs 111 can avoid the fire holes, the heat accumulated in the combustion process of the pan supporting legs 111 can be reduced to be conducted to the supporting legs 121, and then the heat conducted downwards by the supporting legs 121 to the panel or the liquid containing plate 7 can be reduced, and the problem of temperature rise of the panel of the cooking range is not easily caused.

In order to further reduce the heat transfer between the upper and

lower shells

11, 12, the upper and

lower shells

11, 12 have circumferential annular slits 14 at the interface of the inner and/or outer peripheries for communicating the central bore 13 with the outside atmosphere. At least one of the upper cover 11 and the lower cover 12 has a projection projecting toward the other at a circumferential interval at a position adjacent to the inner circumferential edge or the outer circumferential edge, so that an annular slit 14 is formed at a position adjacent to both the inner circumferential edge and the outer circumferential edge. The presence of the annular slit 14 described above effectively reduces heat conduction between the upper and

lower covers

11 and 12, and consequently reduces heat conduction to the leg 121. Because cavity 10 among the prior art can obstruct upper cover 11 to lower floor cover 12 downward heat transfer for closed cavity 10, but cavity 10 of this scheme not only is open cavity 10, can make the air in cavity 10 take place the flow of small range, can reduce the heat conduction that upper cover 11 gathers in the combustion process to lower floor cover 12, make the heat of pot stabilizer blade 111 concentrate on upper cover 11, the heat of reducible pot stabilizer blade 111 transmits to stabilizer blade 121 simultaneously, also can reduce lower floor cover 12 and downward heat conduction to the panel or on liquid containing dish 7, be difficult for causing the temperature rise problem of panel. In order to meet the requirement that the annular gap 14 has enough static air layer thickness for heat insulation and avoid the heat convection loss caused by large-amplitude air flow, the annular gap 14 needs to be not more than 2mm, so that the contact area between two layers can be reduced, the contact heat transfer loss is reduced, and the small-amplitude air flow between the two layers can be ensured.

Referring to fig. 4 to 9 in this embodiment, in order to further reduce the heat conduction to the legs 121, a connection structure for integrally connecting the upper cover 11 and the lower cover 12 may be provided in the cavity 10. Wherein the connecting structure can adopt the following modes: the upper cover 11 has an upper connecting seat 112 extending downward at the inner wall corresponding to the cavity 10, and the connecting member 3 is integrally connected with the upper connecting seat 112 through the leg 121 from bottom to top. The leg 121 may have a concave 1210 recessed from bottom to top to have a longitudinal section in a zigzag shape, the lower coupling seat 122 is provided in the concave 1210, and the connecting member 3 penetrates the lower coupling seat 122 from bottom to top to be integrally coupled with the upper coupling seat 112. Since the connection structure is disposed in the cavity 10, when heat is transferred from the bottom of the pan to the upper connection base 112 through the pan leg 111 and the upper cover 11, the heat is dissipated in the cavity 10, thereby reducing the heat transferred to the connection member 3 and the lower connection base 122, and since the lower connection base 122 is disposed in the cavity 1210 of the leg 121, the heat transferred to the lower connection base 122 is not easily transferred to the leg 121 directly. The upper connecting base 112 can be embedded with a nut base 4, and the connecting piece 3 can be a screw or a limit screw and is in threaded connection with the nut base 4. In addition, the upper layer cover 11 and the lower layer cover 12 directly fix the upper connecting seat 112 and the lower connecting seat 122 through the connecting piece 3, and the heat conduction contact area is small. In order to reduce the number of mounting parts, it is preferable that the bottom of the leg 121 has a hole 1211 into which the connector 3 is inserted, the hole wall of the hole 1211 extends upward toward the upper cover 11 to form a cavity 1210, and the end of the hole wall of the hole 1211 extends toward the center of the hole 1211 to form the lower connector holder 122. Meanwhile, the upper connection seat 112 is provided with a groove 1121 for inserting the screw seat 4, wherein the screw seat 4 can move relative to the groove 1121, so as to provide a certain installation adjustability for the connection member 3 during installation, the screw seat 4 of the present embodiment includes an insertion portion 42 inserted into the groove 1121 and a fastening portion 41 fastened outside the groove 1121, and the insertion portion 42 has a threaded hole 421 adapted to the limiting screw. In order to be able to give the connecting element 3 a certain adjustability of the installation when it is installed, it is preferred that the edge of the insertion section 42 tapers in the insertion direction of the screw receptacle 4. When the connecting member 3 is a setscrew, the head 31 of the setscrew is screwed into the screw seat 4, and the tail 32 of the setscrew is engaged with the lower connecting seat 122, so that the lower cover 12 is connected to the upper cover 11. In order to avoid the hole wall of the insertion hole 1211 acting as a "conductor" for conducting heat downward through the heat shield, the hole wall of the insertion hole 1211 is further opened with at least two through holes 1213 along the circumferential direction, and the through holes 1213 make the cavity 1210 communicate with the cavity 10, thereby making it more difficult for the legs 121 to conduct heat. Wherein, the plug 1211 of the supporting leg 121 is detachably connected with a pad 5, the pad 5 can avoid the impact and the sliding between the heat shield and the liquid containing plate 7 or the kitchen range panel, absorb shock and buffer, increase damping, and simultaneously can be used as a sealing element of the cavity 1210 of the shield body 1. The upper cover 11 and the lower cover 12 are detachable in a split structure, and the inside is subjected to anticorrosion treatment conveniently.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the nut seat 4 is an elastic piece 43, two sides of the elastic piece 43 have bent edges to form an elastic leg 431 that can be clamped in the groove 1121, and the elastic piece 43 has a threaded hole 421 suitable for the limit screw. The elastic piece 43 can be a flexible elastic piece 43, which can be made thinner than the nut seat 4 of embodiment 1 to reduce the contact area of heat conduction, since it has the elastic leg 431 capable of being engaged with the groove 1121, as shown in fig. 11.

Claims

1. The utility model provides a kitchen is with heat exchanger that separates, including the cover body (1), cover body (1) is including upper cover (11) and lower cover (12) that mutually involutes, and upper cover (11) and lower cover (12) between at least local cavity (10), its characterized in that are formed with: the cavity (10) is internally provided with a connecting structure which integrally connects the upper layer cover (11) and the lower layer cover (12).

2. The cooktop heat shield of claim 1, wherein: the lower cover (12) has downwardly extending legs (121) at the bottom wall corresponding to the cavity (10).

3. The cooktop heat shield of claim 2, wherein: the connecting structure adopts the following mode: the upper layer cover (11) is provided with an upper connecting seat (112) which extends downwards on the inner wall corresponding to the cavity (10), and the connecting piece (3) penetrates through the supporting leg (121) from bottom to top and is connected with the upper connecting seat (112) into a whole.

4. The cooktop heat shield of claim 3, wherein: the supporting leg (121) is provided with a concave cavity (1210) which is concave from bottom to top so as to have a longitudinal section in a shape like a Chinese character 'ji', a lower connecting seat (122) is arranged in the concave cavity (1210), and the connecting piece (3) penetrates through the lower connecting seat (122) from bottom to top and is connected with the upper connecting seat (112) into a whole.

5. The cooktop heat shield of claim 4, wherein: the upper connecting seat (112) is embedded with a nut seat (4), and the connecting piece (3) is a screw and is in threaded connection with the nut seat (4).

6. The heat shield for a cooktop according to any one of claims 3 to 5, wherein: the upper connecting seat (112) is provided with a groove (1121) for embedding the nut seat (4), the nut seat (4) comprises an inserting part (42) inserted into the groove (1121) and a clamping part (41) clamped outside the groove (1121), and the inserting part (42) is provided with a threaded hole (421) matched with a limiting screw.

7. The cooktop heat shield of claim 6, wherein: the edge of the insertion part (42) is gradually reduced along the insertion direction of the nut seat (4).

8. The cooktop heat shield of claim 7, wherein: the plug holes (1211) of the support legs (121) are detachably connected with the pad legs (5).