CN221005145U - Power box and electric stove - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of electric stoves and discloses a power box and an electric stove, wherein the power box comprises a shell; a circuit board and a fan are arranged in the shell; the circuit board is inversely arranged on the inner top wall of the shell and fixedly connected with the shell, an electronic component is connected to the circuit board, the circuit board and the electronic component form an inverse structure, and the fan is arranged on one side of the inverse structure. The power supply box disclosed by the utility model is arranged in the electric combustion stove, and accumulated dust can be blown away by the fan in the working process of the electric combustion stove, so that the dust is prevented from being deposited on the circuit board, and the service life of the power supply box is prevented from being influenced.

Description

Power box and electric stove

Technical Field

The utility model relates to the technical field of electric stoves, in particular to a power supply box and an electric stove.

Background

The utility model provides an electric stove, a pair of plasma heads that communicate respectively positive negative pole of power respectively are utilized and are ionized the novel cooking utensils that the high temperature plasma that produces similar flame was cooked, usually need the power supply box to carry out power supply and adjust, and set up on the circuit board of power supply box inside in the bottom of power supply box generally, be connected with the electronic components such as condenser and inductor through the pin on it, in the course of the work of power supply box, the very easy dust that has on the circuit board, the fan that is equipped with in the power supply box inside can blow these dust in the gap that circuit board and various electronic components are connected, because the electronic components on the circuit board set up more closely generally, the dust falls into the gap after hardly being blown away, can be backlogged on the circuit board gradually, influence the normal work of circuit board.

Disclosure of utility model

In view of the above, the utility model provides a power box and an electric stove, which are used for solving the problems that dust is easy to accumulate on a circuit board in the prior art and the normal operation of the circuit board is influenced.

To achieve one or a part or all of the above or other objects, the present application provides a power box, including a housing;

A circuit board and a fan are arranged in the shell;

The circuit board is inversely arranged on the inner top wall of the shell and fixedly connected with the shell, an electronic component is connected to the circuit board, the circuit board and the electronic component form an inverse structure, and the fan is arranged on one side of the inverse structure.

Further, a plurality of through holes are formed in the circuit board, and the electronic components are electrically connected with the circuit board through the through holes.

Further, the electronic component comprises a plurality of field effect transistors, and the field effect transistors are arranged in a row along the wind direction of the fan.

Further, a heat dissipation structure is further arranged in the shell, and the heat dissipation structure is fixed on the circuit board and is located at one side of the fan.

Further, the heat radiation structure comprises a connecting plate and a plurality of radiating fins, wherein the upper end of the connecting plate is fixedly connected with the circuit board, the radiating fins are mutually parallel and fixed at the lower end of the connecting plate, the connecting plate and the radiating fins are vertically arranged, and the field effect tube is fixed at one side of the upper end of the connecting plate.

Further, the field effect transistors are arranged on one fixing piece and fixed with the connecting plate through the fixing piece.

Further, the electronic component further comprises a capacitor and an inductor, and the capacitor and the inductor are inverted on the circuit board.

Further, the whole power box is L-shaped, and the circuit board is also L-shaped.

Further, the electronic component further comprises an inductance coil, and the inductance coil is arranged on one side, opposite to the fan, of the circuit board.

In order to achieve one or a part or all of the above objects or other objects, the present application also provides an electric stove, including the power box and the bottom case of any one of the above objects, wherein the power box is disposed in the bottom case, and a ventilation fence is disposed on a side wall of the bottom case, and corresponds to a position of the fan.

The implementation of the embodiment of the utility model has the following beneficial effects:

When dust exists in the power supply box, the dust can fall onto the bottom plate of the power supply box due to the action of gravity, and is not easy to deposit in a gap between the circuit board and the electronic components, and the fan can blow out the dust more easily, so that dust accumulation is avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic diagram of an exploded view of one embodiment of a power box according to the present application;

FIG. 2 is a schematic diagram of an embodiment of a power box according to the present application;

FIG. 3 is a schematic view of a power box according to an embodiment of the present application, without the housing;

FIG. 4 is a schematic view of an embodiment of an electric stove according to the present application;

Fig. 5 is a top view of an embodiment of an electric cooker according to the present application.

Reference numerals:

1. A housing;

2. A circuit board; 21. a via hole; 22. a fixing hole;

3. a fan;

41. a field effect transistor; 42. a heat dissipation structure; 421. a connecting plate; 422. a heat sink; 43. a fixing piece; 44. a capacitor; 45. an inductor; 46. an inductance coil;

5. a bottom case; 51. a ventilation fence; 52. and a furnace end.

Detailed Description

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 applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In order to make the person skilled in the art better understand the solution of the present application, the technical solution of the embodiment of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present application proposes a power box comprising a housing 1;

a circuit board 2 and a fan 3 are arranged in the shell 1;

The circuit board 2 is inversely arranged on the inner top wall of the shell 1 and fixedly connected with the shell 1, a plurality of through holes 21 are formed in the circuit board 2, a plurality of electronic components are electrically connected with the circuit board 2 through the through holes 21, the circuit board 2 and the electronic components form an inversely arranged structure, and the fan 3 is arranged on one side of the inversely arranged structure. The air intake of fan 3 is located the power supply box outside, the air outlet is located the power supply box inboard, the power supply box during operation, wind blows to the air outlet from the air intake, this in-process can drive the dust in the air along wind direction motion, and the dust still receives gravity effect whereabouts simultaneously, because circuit board 2 and each electronic components all invert in the power supply box, the dust can fall on heat radiation structure 42 or the bottom plate of power supply box, heat radiation structure 42 and the surface of bottom plate are all comparatively smooth, and be equipped with the trompil on the lateral wall of power supply box, under the circumstances of fan 3 work, the dust just can be blown out the power supply box very easily after falling down, and can not receive the barrier of the pin of electronic components, deposit in the gap on circuit board 2, influence the work of circuit board 2.

In different embodiments, the fan 3 may be provided with a dust screen, which is preferably made of metal, to primarily block dust, so as to prevent dust from affecting the air volume entering the power box as much as possible.

The electronic component includes a plurality of field effect transistors 41, and the plurality of field effect transistors 41 are arranged in a row along the wind direction of the fan 3. The field effect tubes 41 are arranged on the fixing piece 43, pins at one end of the field effect tubes 41 are inserted on the circuit board 2, through holes are formed in the pins, the through holes are connected with the fixing piece 43 and the heat dissipation structure 42 through the fixing structure, the field effect tubes 41 are located on the same plane, an air channel can be prevented as far as possible, the contact area between the field effect tubes 41 and wind is small, resistance is reduced, and unnecessary energy loss is reduced.

The power box is L-shaped as a whole, and the circuit board 2 is also L-shaped. The electric stove is also internally provided with a transformer, a stove head 52, a heat dissipation air duct and other structures, and the transformer is arranged at a notch of the L-shaped power supply box and is electrically connected with the power supply box, so that the space can be saved as much as possible, and the whole volume of the electric stove is reduced.

The electronic component further includes a capacitor 44, an inductor 45, and an inductance coil 46, wherein the capacitor 44 and the inductor 45 are located on one side of the field effect transistor 41, inverted on the circuit board 2, and the inductance coil 46 is disposed on the opposite side of the circuit board 2 from the fan 3. Each electronic component is closely arranged on the circuit board 2, so that space is saved as much as possible, each electronic component is in the range of the air duct, and dust deposition caused by dead angles is avoided.

The circuit board 2 is further provided with a plurality of fixing holes 22, fasteners are arranged in the fixing holes 22, the circuit board 2 is fixed on the inner side of the top wall of the shell 1 through the fasteners, electronic components on the circuit board 2 are not contacted with the bottom plate of the power supply box, and the fasteners provide support for the circuit board 2 and the electronic components connected with the circuit board 2.

The inside fan 3 of power supply box can blow out the dust, also plays radiator fan's effect simultaneously, and power supply box during operation, circuit board 2 can generate heat, and in addition, this power supply box is used on electric stove, and furnace end 52 also can produce high temperature when electric stove is worked, produces the influence to the work of power supply box, is equipped with heat radiation structure 42 in the shell 1 of power supply box, and this heat radiation structure 42 is fixed on circuit board 2 to be located one side of fan 3, and the cold wind that fan 3 brought blows through heat radiation structure 42 takes away a part of hot air when carrying out the heat exchange.

The heat dissipation structure 42 includes a connection board 421 and a plurality of heat dissipation fins 422, the upper end of the connection board 421 is fixedly connected with the circuit board 2, heat generated by the circuit board 2 during operation is conducted to the heat dissipation fins 422 through the connection board 421, and both the connection board 421 and the heat dissipation fins 422 can be made of metal materials with good heat conduction properties.

The plurality of cooling fins 422 are fixed at the lower end of the connecting plate 421 in parallel, the field effect tube 41 is fixed at one side of the upper end of the connecting plate 421 through the fixing plate 43, the connecting plate 421 and the plurality of cooling fins 422 are vertically arranged, when the electric stove works, the fan 3 blows air with lower external temperature to the cooling fins 422, and the cooling fins 422 divide the space in the power box into a plurality of air channels.

The cold air passes through the gaps between the radiating fins 422, so that the contact area with the radiating structure 42 is wide, the heat exchange can be fully performed with the cold air, the heat is taken away, the temperature in the power supply box is reduced, and the high temperature is prevented from influencing the work of the circuit board 2 and each electronic component.

Referring to fig. 4 to 5, the present application further provides an electric stove, which includes any one of the above power boxes and a bottom case 5, wherein the power boxes are disposed in the bottom case 5, and a ventilation fence 51 is disposed on a side wall of the bottom case 5, and the ventilation fence 51 corresponds to a position of the fan 3.

It is apparent that the above-described embodiments are only some embodiments of the present application, but not all embodiments, and the preferred embodiments of the present application are shown in the drawings, which do not limit the scope of the patent claims. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the scope of the application.

Claims (10)

1. A power box, comprising a housing;

A circuit board and a fan are arranged in the shell;

The circuit board is inversely arranged on the inner top wall of the shell and fixedly connected with the shell, an electronic component is connected to the circuit board, the circuit board and the electronic component form an inverse structure, and the fan is arranged on one side of the inverse structure.

2. The power box according to claim 1, wherein a plurality of via holes are provided on the circuit board, and the electronic component is electrically connected to the circuit board through the via holes.

3. The power box of claim 1, wherein the electronic component comprises a plurality of field effect transistors, the plurality of field effect transistors being aligned in a row along a wind direction of the fan.

4. A power box according to claim 3, wherein a heat dissipation structure is further provided in the housing, and the heat dissipation structure is fixed on the circuit board and located at one side of the fan.

5. The power box according to claim 4, wherein the heat dissipation structure comprises a connection plate and a plurality of heat dissipation fins, the upper end of the connection plate is fixedly connected with the circuit board, the plurality of heat dissipation fins are fixed at the lower end of the connection plate in parallel with each other, the connection plate is perpendicular to the plurality of heat dissipation fins, and the field effect transistor is fixed at one side of the upper end of the connection plate.

6. The power box according to claim 5, wherein a plurality of the field effect transistors are provided on one fixing piece and are fixed to the connection plate by the fixing piece.

7. The power box of claim 1, wherein the electronic components further comprise a capacitor and an inductor, the capacitor and the inductor being inverted on the circuit board.

8. The power box of claim 1, wherein the power box is generally L-shaped and the circuit board is also L-shaped.

9. The power box of claim 1, wherein the electronic component further comprises an inductor coil disposed on a side of the circuit board opposite the fan.

10. An electric cooker characterized by comprising the power box and a bottom shell according to any one of claims 1-9, wherein the power box is arranged in the bottom shell, and a ventilation fence is arranged on the side wall of the bottom shell and corresponds to the position of the fan.