CN214046109U - Circuit structure for cooking appliance and cooking appliance - Google Patents

Abstract

The utility model discloses a circuit structure and cooking utensil for cooking utensil. The circuit structure comprises a circuit board and at least two inserting pieces, wherein each inserting piece is connected with the circuit board through at least two pins, and the at least two inserting pieces comprise a grounding inserting piece and a protection inserting piece; the first grounding pin of the grounding insertion sheet is connected with the first protection pin of the protection insertion sheet to form a first printed circuit, the second grounding pin of the grounding insertion sheet is connected with the second protection pin of the protection insertion sheet to form a second printed circuit, and the first printed circuit is independent of the second printed circuit. Therefore, the circuit board can be fixed by adopting a plug-in mode instead of screws, the workload of workers can be reduced, the assembly efficiency of the workers is improved, and installation errors are not easy to occur. In addition, the circuit structure can form at least two mutually independent printed circuits, can meet the requirement of safety regulations and meets the national standard.

Description

Circuit structure for cooking appliance and cooking appliance

Technical Field

The utility model relates to a kitchen appliances field particularly relates to a circuit structure and cooking utensil for cooking utensil.

Background

The cooking appliance is one of electric appliances commonly used in a home kitchen, such as an electric rice cooker, an electric pressure cooker, an electric stewpan, or the like, and can satisfy various cooking requirements of a user. In order to meet the safety requirement, the grounding treatment is required for the cooking appliances. In the prior art, different metal wires and ground wires are generally electrically connected together on a circuit board through screws. However, when the cooking utensil is produced, the installation method using the screws can add extra workload to workers, affect the assembly efficiency of the workers, and have the phenomenon of installation errors.

Therefore, it is desirable to provide a circuit structure for a cooking appliance and a cooking appliance to at least partially solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

According to a first aspect of the present invention, there is provided a circuit arrangement for a cooking appliance, said circuit arrangement comprising a circuit board, and at least two inserts, each of said inserts being connected to said circuit board by at least two pins,

the at least two blades comprise a grounding blade and a protection blade;

the first grounding pin of the grounding insertion sheet is connected with the first protection pin of the protection insertion sheet to form a first printed circuit, the second grounding pin of the grounding insertion sheet is connected with the second protection pin of the protection insertion sheet to form a second printed circuit, and the first printed circuit is independent of the second printed circuit.

According to the utility model discloses a circuit structure, including circuit board and two at least inserted sheets, two at least inserted sheets include ground connection inserted sheet and protection inserted sheet, and ground connection inserted sheet and protection inserted sheet all can be connected and can form two mutually independent printed circuit through participating in with the circuit board. Therefore, the circuit board can be fixed by adopting a plug-in mode instead of screws, the workload of workers can be reduced, the assembly efficiency of the workers is improved, and installation errors are not easy to occur. In addition, the circuit structure can form at least two mutually independent printed circuits, can meet the requirement of safety regulations and meets the national standard.

Optionally, the circuit board further includes a first copper foil and a second copper foil, the first ground pin and the first protection pin are connected via the first copper foil to form the first printed circuit, and the second ground pin and the second protection pin are connected via the second copper foil to form the second printed circuit.

Through the arrangement mode, the copper foil is arranged on the circuit board, so that two mutually independent printed circuits are formed through the copper foil, the circuit safety is guaranteed, and potential safety hazards are avoided.

Optionally, the circuit board includes a first fixed terminal and a second fixed terminal electrically connected by the first copper foil, the first ground pin is connected to the first fixed terminal and the first protection pin is connected to the second fixed terminal to form the first printed circuit, and/or

The circuit board includes a third fixed terminal and a fourth fixed terminal electrically connected through the second copper foil, the second ground pin is connected to the third fixed terminal and the second protection pin is connected to the fourth fixed terminal to form the second printed circuit.

Through the setting mode, the plug pins of the insertion pieces can be electrically connected with the fixed terminals on the circuit board, so that the insertion pieces can be conveniently installed by workers, the circuit safety is ensured, and meanwhile, the structure of the circuit board can be simplified.

Optionally, the circuit board is provided with at least two insertion holes connected with the pins.

Through the arrangement mode, the plug pins of the inserting pieces can be inserted into the inserting holes formed in the circuit board, and the inserting pieces can be conveniently installed by workers.

Optionally, the plug hole is configured as a circular, square or triangular through hole.

Through the arrangement mode, multiple effective connection modes can be achieved between the inserting sheet and the inserting hole, and workers can selectively set the shape of the inserting hole according to installation requirements.

Optionally, one side of the insertion piece having the pins is further provided with an extension portion, the extension portion is configured such that one end is connected with the insertion piece and the other end extends downward away from the insertion piece, so as to be capable of abutting against the circuit board when the insertion piece is connected to the circuit board.

Through the arrangement mode, when the inserting sheet is connected to the circuit board, the inserting sheet can be positioned through the extending part, and the inserting sheet is prevented from inclining and shifting in the installation process.

Optionally, the first printed circuit and the second printed circuit are arranged side by side on the circuit board.

Through the arrangement mode, the position of the printed circuit can be more tidy, a worker can conveniently set the copper foil, and the structure of the circuit board can be simplified.

Optionally, the circuit structure further comprises a plug connected with the insertion piece, and the plug is connected with the insertion piece in an insertion manner.

Through the arrangement mode, the inserting pieces and the plug-in connector can be mutually plugged, the requirement of electric connection is effectively met, and meanwhile, the assembly burden of workers can be reduced.

According to a second aspect of the present invention, a cooking appliance is provided, comprising a circuit arrangement according to any one of the first aspects of the present invention.

According to the utility model discloses a cooking utensil, including circuit structure, this circuit structure includes circuit board and two at least inserted sheets, and two at least inserted sheets include ground connection inserted sheet and protection inserted sheet, and ground connection inserted sheet and protection inserted sheet all can be connected and can form two mutually independent printed circuit through participating in with the circuit board. Therefore, the circuit board can be fixed by adopting a plug-in mode instead of screws, the workload of workers can be reduced, the assembly efficiency of the workers is improved, and installation errors are not easy to occur. In addition, the circuit structure can form at least two mutually independent printed circuits, can meet the requirement of safety regulations and meets the national standard.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.

In the drawings:

fig. 1 is a schematic diagram of a circuit configuration according to an embodiment of the present invention; and

fig. 2 is a schematic structural diagram of a circuit board according to an embodiment of the present invention.

Description of reference numerals:

110: circuit board 111: first copper foil

112: second copper foil 113: first fixed terminal

114: second fixed terminal 115: third fixed terminal

116: fourth fixed terminal 120: grounding insertion sheet

121: first ground pin 122: second grounding pin

130: protection insert 131: first protection pin

132: second protection pin

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, like elements are denoted by like reference numerals for clarity, and thus their description will be omitted.

The utility model discloses a circuit structure and cooking utensil for cooking utensil. The cooking utensil of the utility model can be an electric cooker, an electric pressure cooker or an electric stewpot, etc. The cooking appliance according to the present invention has substantially the same structure as a conventional cooking appliance except for a circuit structure, and thus, for the sake of brevity, only it will be briefly described hereinafter.

In an embodiment according to the present invention, the cooking appliance may include a pot body and a lid body, the pot body may have an inner pot accommodating portion of a cylindrical shape (or other shapes), and the inner pot may be freely put into or taken out from the inner pot accommodating portion to facilitate cleaning of the inner pot. The inner pot is made of a metal material and has a circular opening on an upper surface, and the inner pot may be configured as a rotational body formed of a pot wall having an opening and an inner cavity. The capacity of the inner pot is usually below 6L, for example, the capacity of the inner pot can be 2L or 4L.

The cover body may include a detachable cover and an upper cover, the detachable cover being detachably connected to the upper cover. The lid body may be pivotably connected to the pot body by a pivot shaft for covering the pot body. When the cover body covers the cooker body, a cooking space is formed between the detachable cover and the inner pot. In addition, the cooking utensil can also be provided with a temperature sensing device, such as an upper temperature sensing device arranged in the cover body and/or a lower temperature sensing device arranged below the inner pot accommodating part.

The cooking appliance may comprise control means for effecting cooking control of the cooking appliance. For example, the Control device may be a Micro Control Unit (MCU). Lower temperature sensing device and last temperature sensing device all are connected to cooking utensil's controlling means to the temperature signal feedback to controlling means that will sense after the temperature of pot in the sensing, thereby controlling means can realize more accurate control to the process of culinary art based on temperature signal. When the inner pot is arranged in the inner pot accommodating part of the cooker body, the lower temperature sensing device can sense the temperature of the bottom wall of the inner pot, for example, the lower temperature sensing device can be directly or indirectly contacted with the bottom wall of the inner pot.

In addition, the cooker body can also comprise a power supply board, and a display board (also called as a panel) can be arranged on the cooker body. Wherein the power panel can be used for supplying power for a control device, a display panel and the like.

It should be noted that, although a partial structure of the cooking appliance is schematically described at this time, these lists are merely exemplary and cannot be regarded as a structural limitation of the cooking appliance of the embodiment of the present invention.

In order to avoid safety accidents, some metal parts of the cooking appliance, such as the metal casing, the metal cover and the metal base of the cooking appliance, need to be grounded. In contrast, the cooking appliance in the present embodiment further includes a circuit structure through which the metal component of the cooking appliance can be grounded.

Specifically, as shown in fig. 1, the circuit structure includes a circuit board 110 and at least two blades, wherein each blade is capable of being connected to the circuit board 110 by at least two pins. The circuit board 110 may be provided thereon with electrical components for performing a cooking function.

The utility model discloses in, circuit structure includes two at least inserted sheets, promptly, circuit structure can include the inserted sheet of two and above quantities, for example 2, 3, 5. Furthermore, each blade comprises at least two pins, i.e. each blade may comprise two and more numbers of pins, e.g. 2, 3, 5.

In order to explain the technical solution of the present invention in detail, in the present embodiment, as shown in fig. 1, at least two blades include a grounding blade 120 and a protection blade 130. Of course, the present invention is not limited to this embodiment, and in other embodiments, at least two inserts may have other numbers. For example, in yet another embodiment, not shown, the at least two blades may include three blades that may be used to connect the metal shell, the metal base, and the ground, respectively, with the metal shell and the metal base being capable of being grounded via the circuit structure.

In the present embodiment, the ground blade 120 has a first ground pin 121 and a second ground pin 122, and the protection blade 130 has a first protection pin 131 and a second protection pin 132. The grounding insertion sheet 120 can be connected to a ground wire, and the protection insertion sheet 130 can be connected to a metal wire to be grounded.

Preferably, the grounding tab 120 and the protection tab 130 are at least partially constructed of a metallic material, such as copper, aluminum.

Further, in the present embodiment, when the ground blade 120 and the protection blade 130 are respectively connected to the circuit board 110, the first ground pin 121 and the second ground pin 122 can be connected to the circuit board 110 independently of each other, and the first protection pin 131 and the second protection pin 132 can also be connected to the circuit board 110 independently of each other.

Also, the first ground pin 121 and the first protection pin 131 are electrically connected on the circuit board 110 and form a first printed circuit, the second ground pin 122 and the second protection pin 132 are electrically connected on the circuit board 110 and form a second printed circuit, and the first printed circuit and the second printed circuit are independent of each other on the circuit board 110, that is, the first printed circuit and the second printed circuit are spaced apart on the circuit board 110 and are not electrically connected.

Thus, in the present embodiment, when the ground blade 120 to which the ground wire is connected and the protection blade 130 to which the metal wire is connected are simultaneously connected to the circuit board 110, the ground of the cooking appliance can be grounded. Moreover, the grounding insertion sheet 120 and the protection insertion sheet 130 can be connected with the circuit board 110 through the pins and can form two mutually independent printed circuits, the installation mode through insertion reduces the labor intensity of workers, improves the assembly efficiency of the workers, is not easy to make installation errors, and in addition, the circuit structure can form at least two mutually independent printed circuits, can meet the requirement of safety regulations and accords with the national standard.

It is understood that the ground blades 120 and the protection blades 130 may also have other numbers of pins. For example, in a further embodiment, not shown, the ground and protection blades are each provided with three pins. When the grounding insertion sheet and the protection insertion sheet are connected to a circuit board, three pins of the grounding insertion sheet and the protection insertion sheet can form three mutually independent printed circuits on the circuit board.

Further, the circuit board 110 in this embodiment further includes a first copper foil 111 and a second copper foil 112. As shown in fig. 2, the first copper foil 111 and the second copper foil 112 are independently and separately disposed, the first ground pin 121 and the first protection pin 131 are electrically connected to each other through the first copper foil 111 to form a first printed circuit, and the second ground pin 122 and the second protection pin 132 are electrically connected to each other through the second copper foil 112 to form a second printed circuit.

As one implementation, the first copper foil 111 and the second copper foil 112 are at least partially wrapped by an insulating material and are embedded in the circuit board 110. Also, the pins on the insert are constructed at least partially of a metallic material that can contact the copper foil to make an electrical connection when the insert is connected to the circuit board 110.

Further, the circuit board 110 may include a first fixed terminal 113 and a second fixed terminal 114, the first fixed terminal 113 and the second fixed terminal 114 are each constructed of a metal material, and the first fixed terminal 113 and the second fixed terminal 114 are electrically connected through the first copper foil 111.

When the ground tab 120 and the protection tab 130 are respectively connected to the circuit board 110, the first ground pin 121 can be electrically connected with the first fixing terminal 113, and the first protection pin 131 can be electrically connected with the second fixing terminal 114, whereby the first ground pin 121 and the first protection pin 131 can be electrically connected and form a first printed circuit. As one implementation, the first fixing terminal 113 and the second fixing terminal 114 may be at least partially wrapped by an insulating material and at least partially exposed to metal.

Correspondingly, the circuit board 110 may further include a third fixed terminal 115 and a fourth fixed terminal 116, each of the third fixed terminal 115 and the fourth fixed terminal 116 is constructed of a metal material, and the third fixed terminal 115 and the fourth fixed terminal 116 are electrically connected through the second copper foil 112.

Similarly to the first and second fixing terminals 113 and 114, when the ground tab 120 and the protection tab 130 are respectively connected to the circuit board 110, the second ground pin 122 can be electrically connected to the third fixing terminal 115, and the second protection pin 132 can be electrically connected to the fourth fixing terminal 116, whereby the first ground pin 121 and the first protection pin 131 can be electrically connected and form a second printed circuit. As an implementation, each of the third and fourth fixing terminals 115 and 116 may be at least partially wrapped by an insulating material and at least partially exposed to metal.

Further, in order to enable the circuit board 110 to be effectively connected with the blades, the circuit board 110 is further provided with at least two insertion holes capable of being connected with pins, and the pins of the blades can be inserted into the insertion holes to be connected to the circuit board 110. As one implementation, the fixed terminal may be at least partially disposed in the insertion hole and may be capable of contacting the fixed terminal when the pin is inserted into the insertion hole. Preferably, the pin and the fixed terminal may be fixedly connected by soldering or the like.

Furthermore, the plug-in holes may be configured as circular, square or triangular through-holes provided on the circuit board 110. Illustratively, as shown in fig. 2, the insertion hole in the present embodiment is configured as a circular through hole.

Of course, in other embodiments, the socket may be configured in other shapes, depending on the installation requirements. For example, in one embodiment, the fixed terminals connected to the same copper foil may be correspondingly provided with the same-shaped insertion holes, and the fixed terminals connected to different copper foils may be correspondingly provided with different-shaped insertion holes, for example, the fixed terminal connected to the first copper foil may be correspondingly provided with a circular insertion hole, and the fixed terminal connected to the second copper foil may be correspondingly provided with a square insertion hole, so that different copper foils can be distinguished through different-shaped insertion holes.

In the actual installation process, the ground wire and the metal wire are detachably connected with the circuit structure, so that the circuit structure further comprises a plug connector capable of being connected with the inserting sheet for connecting the ground wire and the metal wire conveniently, and the plug connector is connected with the inserting sheet in an inserting mode. For example, the circuit structure in this embodiment includes a first plug and a second plug. One end of the first plug connector is connected with a ground wire, the other end of the first plug connector can be plugged with the grounding insertion sheet 120, one end of the second plug connector is connected with a metal wire, and the other end of the second plug connector can be plugged with the protection insertion sheet 130. As an implementation manner, a side of the insertion sheet far away from the circuit board 110 may be configured as a long strip-shaped metal sheet, and an end portion of the plug may be configured as a metal sleeve capable of being sleeved outside the metal sheet, so that the insertion sheet can be inserted into the plug.

Thus, in the cooking appliance of the present embodiment, the ground wire can be electrically connected to the ground blade 120, and the metal member requiring grounding can be electrically connected to the protection blade 130 through the metal wire. When the grounding tab 120 and the protection tab 130 are connected to the circuit board 110, metal parts of the cooking appliance that need to be grounded can be grounded via the circuit structure. Moreover, because two mutually independent printed circuits are formed in the circuit structure, even if one of the printed circuits on the circuit board 110 is damaged, the grounding element of the cooking utensil can be effectively grounded, the potential safety hazard is avoided, and the requirement of national safety regulations is fully met.

Further, to avoid tilting and shifting of the blade relative to the circuit board 110 during mounting, the side of the blade having the pins is also provided with an extension. Specifically, the extension portion may be configured such that one end is connected with the male tab and the other end extends downward away from the male tab, whereby, when the pin is inserted into the insertion hole, the extension portion can contact and abut against the circuit board 110, so that the male tab is maintained in a perpendicular state with respect to the circuit board 110 to facilitate mounting of the plug. Illustratively, the extension of the ground blade 120 is disposed between the first ground pin 121 and the second ground pin 122, and the extension of the protection blade 130 is disposed between the first protection pin 131 and the second protection pin 132.

Preferably, the first printed circuit and the second printed circuit may be disposed in parallel on the circuit board 110. More preferably, the fixing terminals connected to the same blade may be disposed side by side on the circuit board 110. For example, in the present embodiment, as shown in fig. 2, a first copper foil 111 and a second copper foil 112 are provided side by side on a circuit board 110, a first fixing terminal 113 and a third fixing terminal 115, which can be connected to a ground blade 120, are provided side by side, and a second fixing terminal 114 and a fourth fixing terminal 116, which can be connected to a protection blade 130, are provided side by side. Therefore, the staff can conveniently connect the inserting sheet with the fixed terminals on different printed circuits, and the structure of the circuit board 110 can be simplified.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. Circuit arrangement for a cooking appliance, characterized in that the circuit arrangement comprises a circuit board (110), and at least two inserts, each of which is connected with the circuit board (110) by at least two pins,

the at least two blades include a ground blade (120) and a protection blade (130);

the first grounding pin (121) of the grounding insertion sheet (120) is connected with the first protection pin (131) of the protection insertion sheet (130) to form a first printed circuit, the second grounding pin (122) of the grounding insertion sheet (120) is connected with the second protection pin (132) of the protection insertion sheet (130) to form a second printed circuit, and the first printed circuit is independent of the second printed circuit.

2. The circuit structure for cooking appliances according to claim 1, further comprising a first copper foil (111) and a second copper foil (112) on the circuit board (110), wherein the first ground pin (121) and the first protection pin (131) are connected via the first copper foil (111) to form the first printed circuit, and the second ground pin (122) and the second protection pin (132) are connected via the second copper foil (112) to form the second printed circuit.

3. The circuit structure for a cooking appliance according to claim 2,

the circuit board (110) includes a first fixing terminal (113) and a second fixing terminal (114), the first fixing terminal (113) and the second fixing terminal (114) are electrically connected by the first copper foil (111), the first ground pin (121) is connected to the first fixing terminal (113) and the first protection pin (131) is connected to the second fixing terminal (114) to form the first printed circuit, and/or

The circuit board (110) includes a third fixed terminal (115) and a fourth fixed terminal (116), the third fixed terminal (115) and the fourth fixed terminal (116) are electrically connected through the second copper foil (112), the second ground pin (122) is connected to the third fixed terminal (115) and the second protection pin (132) is connected to the fourth fixed terminal (116) to form the second printed circuit.

4. The circuit structure for a cooking appliance according to claim 1, wherein the circuit board (110) is provided with at least two insertion holes to which the pins are connected.

5. The circuit structure for a cooking appliance according to claim 4, wherein the insertion hole is configured as a circular, square or triangular through hole.

6. The circuit structure for a cooking appliance according to claim 1, wherein the side of the blade having the pins is further provided with an extension portion configured to have one end connected with the blade and the other end extending downward away from the blade to be able to abut to the circuit board when the blade is connected to the circuit board.

7. The circuit structure for a cooking appliance according to claim 1, wherein the first printed circuit and the second printed circuit are provided in parallel on the circuit board.

8. The circuit structure for cooking utensil of claim 1 further comprising a plug connected to the insert, wherein the plug is connected to the insert in a plug-in manner.

9. Cooking appliance, characterized in that it comprises a circuit arrangement according to any one of claims 1 to 8.

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