CN217137494U - Cooking utensil - Google Patents

Abstract

The application relates to a cooking utensil, including shell, heat preservation cover, protective housing and circuit board, the heat preservation cover set up in the shell is inboard, and with the shell cooperation forms and holds the chamber, the protective housing set up in hold the intracavity, the protective housing includes first casing and second casing, first casing with the cooperation of second casing forms the protection chamber, the circuit board set up in protect the intracavity. The application provides a cooking utensil, the circuit board sets up in the space of enclosed type, and the protective housing can play thermal-insulated, waterproof effect to circuit board assembly back is used safelyr, has improved this cooking utensil's electrical apparatus security performance greatly.

Description

Cooking utensil

Technical Field

The application relates to the technical field of small household appliances, in particular to a cooking appliance.

Background

For cooking appliances such as electric stewpots and the like, a circuit board is arranged in a cavity formed between a shell and a heat-insulating cover. In some current schemes, the circuit board is installed on the heat preservation cover through the protective housing, however, one side of the circuit board towards the shell is in an exposed state, and therefore certain potential safety hazards exist in electronic components in the electric stewpot.

Disclosure of Invention

Accordingly, there is a need for a cooking appliance that can improve the safety of the appliance.

The utility model provides a cooking utensil, includes shell, heat preservation cover, protective housing and circuit board, the heat preservation cover set up in the shell is inboard, and with the shell cooperation forms and holds the chamber, the protective housing set up in hold the intracavity, the protective housing includes first casing and second casing, first casing with the cooperation of second casing forms the protection chamber, the circuit board set up in protect the intracavity.

The application provides a cooking utensil, because the protective housing includes first casing and second casing, first casing and the cooperation of second casing form the protection chamber, and the circuit board sets up in the protection chamber, and the circuit board setting is in the space of enclosed type promptly, and the protective housing can play thermal-insulated, waterproof effect promptly to circuit board assembly back is used safelyr, has improved this cooking utensil's electrical apparatus security performance greatly.

In one embodiment, the protective shell is connected to the heat-insulating cover and is arranged at a distance from the shell.

So, made things convenient for the installation of protective housing and circuit board, and the circuit of being connected between circuit board and the dish that generates heat can set up for short, and arrange the electric wire more easily.

In one embodiment, the first housing is connected to the heat-insulating cover, and the first housing includes a bottom wall with a gap therebetween.

So, the heat of heat preservation cover can not direct transfer for the diapire of first casing, avoids first casing temperature rise too high and influences the safety in utilization of circuit board in the protective housing.

In one embodiment, the gap between the bottom wall and the heat-insulating cover is more than 5 mm.

Therefore, a sufficient distance can be ensured between the bottom wall of the first shell and the heat-preservation cover, so that the protective shell and the circuit board can be kept at a low temperature rise level, and the safety of the circuit board is ensured.

In one embodiment, the heat preservation cover is provided with a positioning groove and a first fixing hole, the protective shell is provided with a positioning portion and a fixing portion, the fixing portion is provided with a second fixing hole, the positioning portion is inserted into the positioning groove, and the second fixing hole is fixedly connected with the first fixing hole through a fastening piece.

During the installation, confirm the mounted position of protective housing through location portion and constant head tank cooperation earlier, rethread fastener is connected second fixed orifices and first fixed orifices and can be installed the protective housing in the cover that keeps warm, this simple structure, simple to operate.

In one embodiment, the positioning portion and the fixing portion are respectively disposed on two opposite sides of the first housing.

So, simple to operate to, firm in connection between first casing and the heat preservation cover after the installation.

In one embodiment, the first shell is provided with a first cavity which is opened towards one side, and the second shell covers the opening of the first cavity.

Therefore, the inner cavity of the second shell and the first cavity of the first shell form a protection cavity, and the circuit board is convenient to mount in the protection cavity. Moreover, the structure is suitable for mounting the side, provided with the electronic elements, of the circuit board towards the second shell, so that the circuit board is more convenient to mount and overhaul.

In one embodiment, the circuit board is mounted in the first cavity in a snap fit manner through a snap structure.

Therefore, the circuit board is very convenient to mount and dismount.

In one embodiment, the fastening structure includes a rigid fastener and an elastic fastener, which are disposed on the inner wall of the first cavity, and the rigid fastener and the elastic fastener are disposed on two opposite side walls of the first housing, respectively.

The rigid buckles and the elastic buckles on the two opposite side walls can fix two ends of the circuit board, the rigid buckles are beneficial to limiting the circuit board, the elastic buckles are beneficial to mounting the circuit board, and after the circuit board is mounted, the elastic force of the elastic buckles can also support and push the circuit board, so that the circuit board is stably fixed in the first cavity.

In one embodiment, the rigid fastener is a protrusion protruding from the inner wall of the first cavity, a U-shaped through hole is formed in the side wall of the first housing, the portion of the first housing located inside the U-shaped through hole forms the elastic fastener, and the free end of the elastic fastener has a protruding point protruding towards the first cavity.

During installation, one end of the circuit board can be clamped into one side of the protrusion, the circuit board is continuously pushed, the other end of the circuit board extrudes the elastic buckle, the elastic buckle deforms, and the end, provided with the salient points, of the elastic buckle can abut against the other end of the circuit board, so that the circuit board is fixed in the first cavity. The rigid button and the elastic button provided by the embodiment have very simple structures and are easy to install on a circuit board.

In one embodiment, the first housing and the second housing are connected by snap-fit connection, bonding, riveting or welding.

So, first casing and second casing firm in connection to first casing and second casing can protect the circuit board effectively, and play better thermal-insulated effect.

In one embodiment, one of the first housing and the second housing is provided with a locking protrusion, and the other housing is provided with a locking hole, and the locking protrusion is buckled with the locking hole.

So, can realize the lock of first casing and second casing through the protruding cooperation with the card hole of card and be connected, the structure is very simple, and easy to process, and simple to operate.

In one embodiment, the side wall of the first shell is provided with a first outlet, the side wall of the second shell is provided with a second outlet, and the first outlet corresponds to the second outlet so as to form a channel for passing the power supply line.

So, the electric wire that the circuit board is connected can wear out the protective housing through first appearance mouth and second outlet to be convenient for the circuit board to go other electronic components through the electric wire and connect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a sectional view of a cooking appliance according to an embodiment of the present application;

fig. 2 is a partial structural sectional view of a cooking appliance according to an embodiment of the present application;

FIG. 3 is a perspective view of a heat retention shield according to an embodiment of the present application;

fig. 4 is an exploded view of the protective case and circuit board of an embodiment of the present application;

fig. 5 is an exploded view of a protective case and a circuit board according to another embodiment of the present application.

Reference numerals: 10. a housing; 101. a cavity; 20. a heat-preserving cover; 21. positioning a groove; 22. a first fixing hole; 30. a protective shell; 301. a protection cavity; 31. a first housing; 311. a first chamber; 313. a positioning part; 314. a fixed part; 3141. a second fixing hole; 315. a buckle structure; 3151. a rigid buckle; 3152. an elastic buckle; 316. clamping convex; 317. a first outlet port; 32. a second housing; 321. a clamping hole; 322. a second outlet; 40. a circuit board; 41. an electric wire; 50. a heating plate; 60. and (4) a pot body.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present application provides a cooking appliance including a housing 10, a heat-insulating cover 20, a protective case 30, and a circuit board 40. The heat-insulating cover 20 is disposed inside the housing 10 and cooperates with the housing 10 to form a cavity 101. The protective shell 30 is arranged in the accommodating cavity 101, the protective shell 30 comprises a first shell 31 and a second shell 32, the first shell 31 and the second shell 32 are matched to form a protective cavity 301, and the circuit board 40 is arranged in the protective cavity 301. So, circuit board 40 sets up in the space of enclosed type, and protective housing 30 can play thermal-insulated, waterproof effect to circuit board 40 uses safelyr after the assembly, this cooking utensil's electrical apparatus security performance greatly.

In this embodiment, cooking utensil is the electric stewpan, and heat preservation cover 20 inboard (that is to say heat preservation cover 20 keeps away from one side of protective housing 30) can set up the dish 50 that generates heat, and pot body 60 is arranged in on the dish 50 that generates heat to heat preservation cover 20 can effectively keep warm, and can the separation generate heat the dish 50 to the heat that holds the chamber 101 and give off. But not limited thereto, in other embodiments, the cooking appliance may be an electric rice cooker, an electric steamer, an electric chafing dish, or other types of products.

Referring to fig. 1, in an embodiment, the protection shell 30 is connected to the heat-insulating cover 20 and spaced apart from the housing 10. Thus, the mounting of the protective case 30 and the circuit board 40 is facilitated, and the circuit connected between the circuit board 40 and the heat generating tray 50 can be set shorter, and the electric wire 41 can be more easily arranged.

The protective shell 30 is connected to the heat-insulating cover 20, and may be such that the first shell 31 is connected to the heat-insulating cover 20, the second shell 32 is connected to the heat-insulating cover 20, or both the first shell 31 and the second shell 32 are connected to the heat-insulating cover 20.

In one embodiment, the first housing 31 is connected to the heat-insulating cover 20, and the first housing 31 includes a bottom wall having a gap with the heat-insulating cover 20. Therefore, the heat of the heat-insulating cover 20 is not directly transferred to the bottom wall of the first shell 31, and the problem that the use safety of the circuit board 40 in the protective shell 30 is affected due to the overhigh temperature of the first shell 31 is avoided.

Referring to fig. 2, further, the gap between the bottom wall of the first housing 31 and the heat-insulating cover 20 is more than 5 mm. In the drawing, a gap between the bottom wall of the first housing 31 and the heat insulating cover 20 is denoted by L. In this way, a sufficient space between the bottom wall of the first housing 31 and the heat-retaining cover 20 can be ensured, so that the protective case 30 and the circuit board 40 can be kept at a low temperature rise level, ensuring the safety of the circuit board 40.

Referring to fig. 3, the heat-insulating cover 20 has a positioning slot 21 and a first fixing hole 22. Referring to fig. 2, 4 and 5, the protective shell 30 has a positioning portion 313 and a fixing portion 314, the fixing portion 314 has a second fixing hole 3141, the positioning portion 313 is inserted into the positioning groove 21, and the second fixing hole 3141 is fixedly connected to the first fixing hole 22 through a fastening member (not shown). During installation, the installation position of the protective shell 30 is determined by matching the positioning part 313 and the positioning groove 21, and then the protective shell 30 can be installed on the heat-insulating cover 20 by connecting the second fixing hole 3141 and the first fixing hole 22 through the fastener. In this embodiment, the fasteners are screws.

Referring to fig. 4, the positioning portion 313 and the fixing portion 314 are respectively disposed on two opposite sides of the first housing 31. Therefore, the installation is convenient, and the first shell 31 and the heat preservation cover 20 are firmly connected after installation. In this embodiment, the positioning portion 313 and the fixing portion 314 both extend toward the heat-insulating cover 20, and when the heat-insulating cover is mounted, an end surface of the positioning portion 313 and an end surface of the fixing portion 314 both contact a bottom surface of the heat-insulating cover 20, so that a gap is formed between a bottom wall of the first housing 31 and the heat-insulating cover 20. That is, the first housing 31 directly contacts the heat-retaining cover 20 through the positioning portions 313 and the fixing portions 314, while a gap is provided between the bottom wall of the first housing and the heat-retaining cover 20. In this embodiment, the distance from the end surface of the positioning portion 313 to the outer surface of the bottom wall of the first housing 31 is equal to the distance from the end surface of the fixing portion 314 to the outer surface of the bottom wall of the first housing 31, and the distance is 5mm or more, so that the gap between the bottom wall of the first housing 31 and the heat insulating cover 20 is 5mm or more.

Referring to fig. 5, in an embodiment, the first housing 31 has a first cavity 311 opened toward one side, and the second housing 32 covers an opening of the first cavity 311. In this way, the inner cavity of the second housing 32 and the first cavity 311 of the first housing 31 form the protection cavity 301, thereby facilitating the installation of the circuit board 40 in the protection cavity 301. Moreover, such a structure is suitable for mounting the side of the circuit board 40 provided with the electronic components toward the second housing 32, so that the mounting and maintenance of the circuit board 40 are more convenient. As shown in fig. 4 and 5, the first housing 31 includes a bottom wall and a side wall, and the side wall is disposed on a side of the bottom wall away from the heat-insulating cover 20, so that the side wall and the bottom wall enclose a first cavity 311.

Further, the circuit board 40 is snap-fitted in the first cavity 311 by means of the snap-fit structure 315. Thus, the circuit board 40 is very convenient to mount and dismount.

Referring to fig. 5, the fastening structure 315 further includes a rigid fastener 3151 and an elastic fastener 3152 disposed on the inner wall of the first cavity 311, and the rigid fastener 3151 and the elastic fastener 3152 are respectively disposed on two opposite sidewalls of the first housing 31. The rigid fastener 3151 and the elastic fastener 3152 on the two opposite sidewalls can fix two ends of the circuit board 40, the rigid fastener 3151 is beneficial to limiting the circuit board 40, the elastic fastener 3152 is beneficial to mounting the circuit board 40, and after mounting, the elastic force of the elastic fastener 3152 can also push the circuit board 40, so that the circuit board 40 is stably fixed in the first cavity 311.

The rigid fastener 3151 is a protrusion protruding from the inner wall of the first cavity 311, the side wall of the first housing 31 is provided with a U-shaped through hole, the portion of the first housing 31 located inside the U-shaped through hole forms an elastic fastener 3152, and the free end of the elastic fastener 3152 has a protruding point protruding towards the first cavity 311. During installation, one end of the circuit board 40 may be first clamped into the protrusion side, and the circuit board 40 is continuously pushed, so that the other end of the circuit board 40 presses the elastic buckle 3152, and the elastic buckle 3152 is deformed, so that the end of the elastic buckle 3152 having the protruding point may push against the other end of the circuit board 40, thereby fixing the circuit board 40 in the first cavity 311. The rigid clasp 3151 and the elastic clasp 3152 provided by this embodiment have very simple structures, and are easy to mount the circuit board 40.

Further, the first housing 31 and the second housing 32 are connected by snap-fit, adhesive, riveting or welding. In this way, the first housing 31 and the second housing 32 are firmly connected, so that the first housing 31 and the second housing 32 can effectively protect the circuit board 40 and perform a good heat insulation function.

In one embodiment, the first housing 31 and the second housing 32 are connected by a snap fit, so that the assembly and disassembly are convenient and the maintenance is convenient. Specifically, one of the first housing 31 and the second housing 32 is provided with a locking protrusion 316, the other is provided with a locking hole 321, and the locking protrusion 316 is locked with the locking hole 321, so that the first housing 31 and the second housing 32 can be locked and connected, and the structure is very simple, easy to process and convenient to install. In this embodiment, the side wall of the first housing 31 is provided with a locking protrusion 316, and the side wall of the second housing 32 is provided with a locking hole 321.

Further, a first outlet 317 is disposed on a side wall of the first housing 31, a second outlet 322 is disposed on a side wall of the second housing 32, and the first outlet 317 corresponds to the second outlet 322 to form a channel through which the power supply line 41 passes. In this way, the electric wire 41 connected to the circuit board 40 can pass through the first outlet and the second outlet 322 and exit out of the protective shell 30, so that the circuit board 40 can be connected to other electronic components through the electric wire 41.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (13)

1. A cooking appliance is characterized by comprising a shell (10), a heat preservation cover (20), a protective shell (30) and a circuit board (40), wherein the heat preservation cover (20) is arranged on the inner side of the shell (10) and is matched with the shell (10) to form a containing cavity (101),

the protective housing (30) is arranged in the accommodating cavity (101), the protective housing (30) comprises a first shell (31) and a second shell (32), the first shell (31) and the second shell (32) are matched to form a protection cavity (301), and the circuit board (40) is arranged in the protection cavity (301).

2. The cooking appliance according to claim 1, wherein the protective casing (30) is connected to the heat-retaining cover (20) and is spaced apart from the outer casing (10).

3. The cooking appliance according to claim 1, wherein the first casing (31) is connected to the heat-retaining cover (20), the first casing (31) comprising a bottom wall with a gap between the bottom wall and the heat-retaining cover (20).

4. The cooking appliance according to claim 3, wherein the gap between the bottom wall and the heat retaining cover (20) is 5mm or more.

5. The cooking appliance according to claim 1, wherein the heat-retaining cover (20) is provided with a positioning groove (21) and a first fixing hole (22), the protective shell (30) is provided with a positioning portion (313) and a fixing portion (314), the fixing portion (314) is provided with a second fixing hole (3141), the positioning portion (313) is inserted into the positioning groove (21), and the second fixing hole (3141) is fixedly connected with the first fixing hole (22) through a fastening member.

6. The cooking appliance according to claim 5, wherein the positioning portion (313) and the fixing portion (314) are respectively provided at opposite sides of the first housing (31).

7. The cooking appliance according to claim 1, wherein the first housing (31) has a first cavity (311) open to one side, and the second housing (32) covers an opening of the first cavity (311).

8. The cooking appliance according to claim 7, wherein the circuit board (40) is snap-fitted into the first cavity (311) by means of a snap-fit structure (315).

9. The cooking appliance according to claim 8, wherein the snap structure (315) comprises a rigid snap (3151) and an elastic snap (3152) disposed on the inner wall of the first cavity (311), the rigid snap (3151) and the elastic snap (3152) being disposed on two opposite side walls of the first housing (31), respectively.

10. The cooking appliance according to claim 9, wherein the rigid clasp (3151) is a protrusion protruding from an inner wall of the first cavity (311),

the side wall of the first shell (31) is provided with a U-shaped through hole, the part of the first shell (31) located inside the U-shaped through hole forms the elastic buckle (3152), and the free end of the elastic buckle (3152) is provided with a convex point protruding towards the first cavity (311).

11. Cooking appliance according to claim 1, characterized in that the first shell (31) and the second shell (32) are snap-fit connected, glued, riveted or welded.

12. The cooking appliance according to claim 11, wherein one of the first housing (31) and the second housing (32) is provided with a locking protrusion (316), and the other is provided with a locking hole (321), and the locking protrusion (316) is locked with the locking hole (321).

13. The cooking appliance according to claim 1, wherein the side wall of the first casing (31) is provided with a first outlet (317), the side wall of the second casing (32) is provided with a second outlet (322), the first outlet (317) corresponding to the second outlet (322) to form a channel for the passage of the electrical supply line (41).

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