CN216822959U - Food preparation machine with good heat transfer effect - Google Patents

Abstract

The utility model discloses a food preparation machine that heat transfer effect is good, including casing and last casing down, the casing is equipped with the food processing chamber down, the bottom in food processing chamber is equipped with the food heater block, the food heater block includes the heating pipe, the heating pipe is fixed in the fixed bolster, the fixed bolster is fixed with lower casing, the fixed bolster is equipped with two at least heating pipe fixed parts along the extending direction of heating pipe. The utility model discloses an solitary fixed bolster is fixed the heating pipe to the fixed bolster has realized the multiple spot along the extending direction of heating pipe and has fixed, can effectively restrict the deformation of heating pipe, improves the plane degree of heating pipe, improves the heat transfer effect.

Description

Food preparation machine with good heat transfer effect

Technical Field

The utility model relates to a kitchen appliances technical field especially relates to food preparation machine.

Background

The heating pipes are used for heating food processing machines such as air fryer in the market. Taking an air fryer as an example, after a heating pipe is bent into a plurality of sections, only a part of the sections are fixed by clamping clips, and due to the reason of the processing technology of the heating pipe, the flatness of the heating pipe is poor, so that the gap between the heating pipe and a baking tray placed on the heating pipe is uneven, the position of a part of the heating pipe is larger, the heat transfer effect is uneven, and the temperature uniformity on the surface of the baking tray is poor.

Or the heating pipe is bent and divided into a plurality of sections and then passes through the steel wire for fixation, the strength of the steel wire is not high, the deformation of the heating pipe can not be effectively prevented, the surface flatness of the heating pipe is poor, the gap between the heating pipe and a baking tray placed on the heating pipe is uneven, the partial position is larger, the heat transfer effect is uneven, and the temperature uniformity on the surface of the baking tray is poor.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, the utility model aims to solve the technical problem that a food processor with good heat transfer effect is provided.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a food preparation machine that heat transfer effect is good, includes casing and last casing down, the casing is equipped with food processing chamber down, the bottom in food processing chamber is equipped with the food heater block, the food heater block includes the heating pipe, the heating pipe is fixed in the fixed bolster, the fixed bolster is fixed with casing down, the fixed bolster is equipped with two at least heating pipe fixed parts along the extending direction of heating pipe.

Preferably, the fixing support comprises a horizontal portion and a vertical portion extending vertically upwards from the side surface of the horizontal portion, and the heating pipe fixing portion is arranged on the vertical portion.

Preferably, the heating pipe fixing part comprises a groove arranged on the vertical part and bending clamping feet arranged on two sides of the groove and used for fixing the heating pipe in the groove.

Preferably, the bending clamping pin is of a structure with a narrow root part and a wide head part, so that the root part is deformed when the bending clamping pin is bent; or the bending clamping pin is of a structure with a wide root part and a narrow head part, so that the head part is deformed when the bending clamping pin is bent.

Preferably, the fixed supports are arranged along the circumferential whole circle of the heating pipe distribution area or arranged at intervals and enclose to form a local heating cavity for locally gathering heat generated by the heating pipe.

Preferably, the fixed support is a sheet metal part.

Preferably, a metal outer cover is arranged on the outer side of the heating pipe and connected with the lower shell, and the end part of the heating pipe outwards penetrates through the metal outer cover and is connected with a lead.

Preferably, the metal outer cover is provided with a heating pipe clamp for fixing the heating pipe at the position where the heating pipe passes through.

Preferably, a sealing ring is sleeved outside the end part of the heating pipe, and the sealing ring is arranged in a gap between the heating pipe and the metal outer cover; and/or the fixing bracket is fixed on the metal outer cover through screws or rivets.

Preferably, the heating pipe is of a disc-shaped structure; or the heating pipes are connected in sequence by a plurality of S-shaped pipe sections along the horizontal direction.

The utility model discloses a technical scheme, following beneficial effect has:

1. the heating pipe is fixed by adopting the independently designed fixing support, and the fixing support is provided with at least two heating pipe fixing parts along the extending direction of the heating pipe, so that the heating pipe is fixed at multiple points. During the installation, be fixed in the fixed bolster with the heating pipe earlier, then be fixed in the casing down with the fixed bolster, because the fixed bolster can design to the heating pipe that corresponds the structure to can adopt the higher metal material of intensity to make, have intensity height, advantage that the plane degree is good, consequently, can reliably fix the heating pipe, effectively restrict the deformation of heating pipe, improve the plane degree of heating pipe, improve the heat transfer effect.

2. The fixed bolster includes horizontal part and the vertical portion that makes progress vertical extension from the horizontal part side, and the horizontal part can be fixed through the fastener, can set up the recess in vertical portion to the both sides of recess are equipped with the card foot of bending, and during the installation heating pipe, the heating pipe is placed in the recess, through the card foot of bending firmly fixed with the heating pipe, not only fixed convenient, it is firm moreover.

3. The fixing support is arranged in a circumferential whole circle or at intervals along the distribution area of the heating pipe and is surrounded to form a local heating cavity for locally gathering heat generated by the heating pipe, so that the heat generated by the heating pipe is concentrated to the area right above the heating pipe, and for a general food processing machine, such as a steam fryer, the heat is concentrated on food due to the fact that the food is placed in the area above the heating pipe, and therefore the heating efficiency can be remarkably improved.

4. The fixed support can adopt a sheet metal part, and compared with the production and processing of forging and casting, the sheet metal part has the advantages of light weight, capability of saving metal materials, simple processing technology, capability of reducing the production cost, capability of saving the production cost and the like. And parts with complex shapes can be processed, the product has sufficient shape and dimensional accuracy, the surface quality of the product is better, and the product has higher strength. Therefore, the heating pipe is fixed on the fixing frame, the heating pipe can be reliably fixed, the deformation of the heating pipe is effectively limited, the flatness of the heating pipe is improved, and the heat transfer effect is improved.

5. The outside of heating pipe is equipped with the metal dustcoat, metal dustcoat and lower body coupling to can form thermal-insulated cavity between metal dustcoat and lower casing, avoid the heat that the heating pipe produced to outwards scatter and disappear on the one hand, be favorable to improving heating efficiency, also avoid shell body temperature too high on the other hand, the shell body if the high temperature causes the user to scald easily.

6. The metal outer cover is provided with a heating pipe clamp for fixing the heating pipe at the position where the heating pipe penetrates, so that the fixing point of the heating pipe is increased, the deformation of the heating pipe is further limited, and the heating pipe clamp is also used for tightly pressing and fixing the sealing ring to prevent the sealing ring from loosening.

7. The sealing ring is used for sealing the gap where the heating pipe penetrates through the metal outer cover, water is prevented from flowing to the power supply end part of the heating pipe, the electric leakage risk is prevented, and meanwhile, the heat is prevented from being dissipated outwards through the gap where the heating pipe penetrates through the metal outer cover.

The utility model discloses a specific technical scheme and the beneficial effect that brings will give detailed disclosure in the following embodiment in combination with the accompanying drawings.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

FIG. 1 is a schematic view of the internal structure of the food processor of the present invention;

FIG. 2 is a plan view showing the installation state of a heating pipe;

FIG. 3 is a schematic view of the lower casing being cut longitudinally at the location of the fixed portion of the heating tube;

FIG. 4 is a schematic view of the lower housing being cut longitudinally at a location where the heating tube passes through the metal housing;

FIG. 5 is a diagram showing a fitting structure of the heating pipe, the heating pipe clamp and the sealing ring;

FIG. 6 is a schematic view of a bending clamp with a narrow root and a wide head;

FIG. 7 is a schematic view of a bending clamp with a wide root and a narrow head;

in the figure: the heating device comprises a lower shell 1, a metal outer cover 11, a boss 111, an outer folded edge 112, a fixed support 12, a horizontal portion 121, a vertical portion 122, a groove 123, a bent clamping foot 124, a heating pipe 13, an end portion 131 of the heating pipe, a baking tray 14, a heating pipe clamping clip 15, a sealing ring 16, a clamping groove 17, an upper shell 2 and a heating cavity 3.

Detailed Description

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 1 to 3, the utility model provides a food preparation machine that heat transfer effect is good, including casing 1 and last casing 2 down, casing 1 is equipped with the food processing chamber down, the bottom in food processing chamber is equipped with the food heater block, the food heater block includes heating pipe 13, heating pipe 13 is fixed in fixed bolster 12, fixed bolster 12 is fixed with casing 1 down, fixed bolster 12 is equipped with two at least heating pipe fixed parts along the extending direction of heating pipe 13.

Compared with the prior art, in the present embodiment, the heating pipe 13 is fixed to the fixing bracket 12, and then the fixing bracket 12 is fixed to the lower casing 1. Because the fixed bolster can be designed to the heating pipe that corresponds the structure to can adopt the higher metal material of intensity to make, the rethread two at least heating pipe fixed parts realize that the heating pipe multiple spot is fixed, consequently, the fixed bolster has intensity height, and the advantage that the plane degree is good can effectively restrict the deformation of heating pipe, improves the plane degree of heating pipe, improves heat transfer effect.

It can be understood that heating pipe fixed part can adopt multiple structure, for example for the structure of constant head tank cooperation fixed block, sets up the constant head tank on the fixed bolster, and the heating pipe is located the constant head tank, and the fixed block passes through the fastener, for example when the screw fixation is in the fixed bolster, and the heating pipe is held tightly with the constant head tank cooperation and is realized fixing.

In order to avoid too rapid dissipation of the heat generated by the heating tube to the outside of the food processing chamber, as shown in fig. 1, a metal outer cover 11 may be generally disposed on the outside of the heating tube, wherein the metal outer cover 11 is connected to the lower housing 1, and an insulating cavity is formed between the metal outer cover 11 and the lower housing 1. Therefore, on one hand, the heat generated by the heating pipe is prevented from dissipating outwards, which is beneficial to improving the heating efficiency, on the other hand, the temperature of the outer shell is also prevented from being too high, and if the temperature of the outer shell is too high, a user is easy to scald. As shown in fig. 3, a slot 17 is provided along the circumferential direction at the edge of the upper opening of the lower casing 1, an outer folded edge 112 is provided at the upper end periphery of the metal outer cover 11, and the outer folded edge 112 is engaged with the slot 17 to connect the metal outer cover 11 and the lower casing 1. In addition, the end 131 of the heating tube passes outward through the metal housing 11 and is connected to the lead wires, hiding the location of the connection lead wires inside the machine.

In order to avoid loosening of the heating tube ends, the metal jacket 11 is provided with heating tube clips 15, as shown in fig. 4 and 5, at the positions where the heating tubes 13 pass through, for fixing the heating tubes 13. The deformation of the heating tube is further limited due to the increase of the fixing point of the heating tube. The heating pipe clamp 15 is provided with a clamping hole and a fixing hole, wherein the clamping hole is externally sleeved on the heating pipe, and the fixing hole can be connected with a fastening piece such as a screw, a rivet and the like and is fixed on the metal outer cover 11. In addition, the periphery of the clamping hole can be provided with a flanging, so that the contact area with the heating pipe can be increased, and the fixing stability is ensured.

Further, a sealing ring 16 may be sleeved on the end of the heating tube, and the sealing ring 16 is disposed in the gap between the heating tube 13 and the metal outer cover 11. The sealing ring can be an O-shaped ring or other ring-shaped structures which can be sleeved on the heating pipe.

As shown in fig. 5, in the present embodiment, the metal housing 11 is provided with a boss 111 protruding upward corresponding to the position where the heating pipe 13 passes, the heating pipe clamp 15 is fixed on the boss 111, and a through hole is formed in the boss, the heating pipe 13 passes through the through hole, the through hole is provided with a flange turned downward, the through hole is provided with an arc transition port at the root of the flange, and the diameter of the sealing ring 16 is larger than that of the through hole, so that the sealing ring is supported on the arc transition port and is pressed and fixed by the heating pipe clamp 15 above.

When the heating tube clamp 15 is locked on the boss 111 of the metal outer cover 11, the sealing ring 16 is squeezed to seal the gap between the heating tube 13 and the metal outer cover 11, thereby preventing the risk of electric leakage caused by water flowing onto the wire at the end of the heating tube, and simultaneously preventing heat from being dissipated outwards through the gap where the heating tube passes through the metal outer cover.

It will be appreciated that the mounting bracket 12 may be secured to the metal housing by a variety of means, such as screws or rivets.

It can be understood that the food processor of the present invention can be an air fryer, and can also be other food processors with a heating tube heating structure.

The food processor is described by taking an air fryer as an example, the food heating part also comprises a baking tray 14, the heating pipe 13 is attached to the lower surface of the baking tray 14, and the flatness of the heating pipe is better, so that the gap between the heating pipe and the baking tray can be reduced, the heat transfer effect of the heating pipe to the baking tray is improved, and the uniformity of the surface temperature of the baking tray is improved.

In addition, refer to the structure of current air frying pan, the air frying pan still includes the steam generation subassembly, the top in food processing chamber is equipped with heating chamber 3, be equipped with wind scooper and hot-blast subassembly in the heating chamber 3, hot-blast subassembly is installed in the wind scooper, hot-blast subassembly includes fan and heating tube, the steam generation subassembly includes the water pump, steam generator and take the water tank in water storage chamber, the water storage intracavity is equipped with the outlet pipe that leads to with the water pump, steam generator passes through water pump extraction water tank water source and heats formation steam, the steam that hot-blast subassembly produced and the steam generation subassembly produced flows into the food processing chamber, the heating of cooperation overware, cook food together.

Example two

As shown in fig. 1 to 3, in the present embodiment, the fixing bracket 12 is a metal member, and a sheet metal member may be used. Compared with the production and processing of forging and casting, the sheet metal component has the advantages of light weight, metal material saving, simple processing technology, production cost reduction, production cost saving and the like. And parts with complex shapes can be processed, the product has sufficient shape and dimensional accuracy, the surface quality of the product is better, and the product has higher strength. Therefore, the heating pipe is fixed on the fixing frame, the heating pipe can be reliably fixed, the deformation of the heating pipe is effectively limited, the flatness of the heating pipe is improved, and the heat transfer effect is improved.

Of course, the fixing bracket can also be made of die casting to increase the thickness, further improve the strength of the fixing bracket and resist deformation, but relatively speaking, the contact area with the heating pipe is increased, and the heat transfer performance is increased.

As for the specific structural design of the fixing bracket, as shown in fig. 1 to 7, the fixing bracket 12 includes a horizontal portion 121 and a vertical portion 122 extending vertically upward from a side surface of the horizontal portion, wherein the horizontal portion 121 can be fixed to the metal housing 11 by a fastening member, and the heating pipe fixing portion is provided on the vertical portion 122. The heating pipe fixing portion includes a groove 123 opened in the vertical portion 122 and bending clamping legs 124 provided on both sides of the groove 123 and fixing the heating pipe 13 in the groove 123. Since the fixing bracket 12 is made of sheet metal, the horizontal portion 121 and the vertical portion 122, the groove 123 of the vertical portion, and the bent clamping legs 124 on both sides thereof can be formed by stamping. During assembly, the heating tube 13 is placed in the groove 123, and the heating tube 13 is firmly fixed by bending the clamping legs 124.

Because the contact width of the groove and the heating pipe is only the thickness of the plate, the contact area of the fixing support and the heating pipe is reduced, and the heat of the heating pipe is further transmitted to the shell of the machine through the fixing frame.

It will be appreciated that the bent clip 124 can be configured to have a narrower root and wider head as shown in fig. 6, with the bent clip being configured such that when a tool is used to bend the bent clip toward the tube grip, the base of the clip deforms and the head tapers to grip the tube 13. As shown in fig. 7, the bending clamping leg 124 may also be made into a structure with a wider root and a narrower head, and the head is deformed to narrow and clamp the heating tube 13 during bending.

It is understood that the fixing bracket may be an integral structure or may be formed by combining a plurality of separate components.

Because the fixing bracket has a certain height, correspondingly, the fixing bracket 12 is arranged along the whole circumferential circle of the distribution area of the heating pipe 13 or arranged at intervals, and encloses to form a local heating cavity for locally gathering the heat generated by the heating pipe 13, so that the heat generated by the heating pipe 13 is concentrated to the area right above the heating pipe 13, and still taking an air fryer as an example, the heat can be concentrated to the baking tray 14 above.

It is understood that the shape of the heating tube is various, for example, the heating tube may be a more common disk-shaped structure, and specifically, the heating tube may be coiled into a disk shape, a rectangular disk shape, or the like; alternatively, as shown in fig. 2, the heating pipes may be connected in series by a plurality of S-shaped pipe sections in the horizontal direction. Other shapes of the heating tube can be referred to in the prior art, and are not listed here. Of course, after the shape of the heating pipe changes, the shape of the fixing support 12 also changes correspondingly, and the setting position and the setting number of the fixing parts of the heating pipe can be adjusted correspondingly to meet the requirement of reliable fixing. Taking the example that the heating pipe is composed of a plurality of S-shaped pipe sections as shown in fig. 2, a heating fixing portion is provided near each bending position.

In addition, other structures not described can be referred to in the first embodiment.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The food processor is characterized in that the heating pipe is fixed on a fixing support, the fixing support is fixed with the lower shell, and the fixing support is provided with at least two heating pipe fixing parts along the extending direction of the heating pipe.

2. The heat transfer efficient food processor of claim 1, wherein the mounting bracket comprises a horizontal portion and a vertical portion extending vertically upward from a side of the horizontal portion, and the heating tube mounting portion is disposed at the vertical portion.

3. The food processor as claimed in claim 2, wherein the heating pipe fixing portion comprises a groove formed in the vertical portion and bent locking legs disposed at both sides of the groove for fixing the heating pipe to the groove.

4. The food processor with good heat transfer effect as claimed in claim 3, wherein the bending clamping pin is of a structure with a narrow root part and a wide head part, so that the root part is deformed when the bending clamping pin is bent; or the bending clamping pin is of a structure with a wide root part and a narrow head part, so that the head part is deformed when the bending clamping pin is bent.

5. The food processor as claimed in claim 1, wherein the fixing brackets are disposed along a whole circumference of the distribution area of the heating pipe or spaced from each other, and enclose a local heating cavity for locally concentrating heat generated by the heating pipe.

6. A food processor as claimed in any one of claims 1 to 5, wherein the fixed support is a sheet metal part.

7. The food processor as claimed in claim 1, wherein a metal outer cover is disposed outside the heating tube, the metal outer cover is connected to the lower housing, and the end of the heating tube passes through the metal outer cover and is connected to a lead.

8. The food processor as claimed in claim 7, wherein the metal housing has a heating pipe clamp for fixing the heating pipe at a position where the heating pipe passes through.

9. The food processor as claimed in claim 7, wherein a sealing ring is sleeved outside the end of the heating tube, and the sealing ring is arranged in a gap between the heating tube and the metal outer cover; and/or the fixing bracket is fixed on the metal outer cover through screws or rivets.

10. The food processor as claimed in claim 1, wherein the heating tube has a disk-like structure; or the heating pipes are connected in sequence by a plurality of S-shaped pipe sections along the horizontal direction.

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