CN2847097Y

CN2847097Y - Electromagnetic oven set with turbine fan

Info

Publication number: CN2847097Y
Application number: CN 200520120318
Authority: CN
Inventors: 米永峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-19
Filing date: 2005-12-19
Publication date: 2006-12-13
Anticipated expiration: 2015-12-19

Abstract

The utility model discloses an electromagnetic oven with turbine fans, which comprises a microcrystalline plate, a coil disc, radiation fins and electronic components arranged on a circuit plate, and the utility model also comprises that one end of a bottom shell of the interior of the electromagnetic oven is provided with two trubine fans; the wind outlet of one turbine fan is opposite to the radiation fins, and the wind outlet of the other turbine fan is opposite to the electronic components. The utility model uses centrifugal type diversion, and the utility model has the advantages of smooth and concentrating delivered airflow, few turbulent flow, without blind area and multiple number of vanes; the total projected area of the over wind surface is even greater than the over wind area; with using the centrifugal effect, compared with an axial flow fan, the utility model can provide much bigger wind pressure; the utility model has favorable heat radiating system, and the working state of the electromagnetic oven can achieve sustained optimum; in addition, the utility model optimizes the working atmosphere of each component, prolongs the service life of the electromagnetic oven and reduces the noise in the process of the work of the electromagnetic oven.

Description

A kind of electromagnetic oven that turbofan is set

Technical field

The utility model relates to the electromagnetic oven of food heating usefulness, particularly a kind of electromagnetic oven that turbofan is set.

Background technology

A good electromagnetic oven, how very crucial its radiating effect is! Because electromagnetic oven is as a high-power electric appliance, in the course of the work, temperature can raise in the stove, particularly core component high power valve IGBT and Qiao Dui, quite strict to temperature requirement, as it is bad to dispel the heat, and can cause the hazard rate height, poor stability, accelerated ageing, even burn IGBT and Qiao Dui, and this just needs a good cooling system, and radiating efficiency is determining the service life of electromagnetic oven to a great extent.

Wind-cooling heat dissipating is adopted in the heat radiation of electromagnetic oven, so-called air-cooled radiator, its radiating principle i.e. metal fin by closely contacting with thermal objects, the heat that thermal objects is produced conducts on the fin with bigger thermal capacity and area of dissipation, utilize the guide functions of fan to make air pass through fin surface fast again, accelerate the thermal convection current between fin and the air, i.e. forced convertion heat radiation.Fan acting as in air-cooled radiator: the guide functions that relies on self, make air pass through fin with certain speed, certain mode, utilize the heat exchange between air and the fin to take away the heat of piling up on it, thereby realize the radiating mode of " forced convertion ".

The radiator fan that the tradition electromagnetic oven adopts, it be that flabellum is the axial flow flabellum of propeller-like, be positioned at bottom air inlet, can keep watch forcibly up sucks in the stove, and wind direction up keeps off by face-piece and crystallite plate resistance, the wind direction overflow that scatters, some is used for dispelling the heat, and most has slatterned, and efficient is lower.So the fan design of traditional electromagnetic oven exists certain drawback.

Summary of the invention

The purpose of this utility model is intended to overcome the deficiencies in the prior art and provides a kind of air-flow of sending smooth-going, concentrated, and turbulent flow is few, the electromagnetic oven that turbofan is set of non-blind area.

The purpose of this utility model is achieved in that

A kind of electromagnetic oven that turbofan is set, comprise the crystallite plate, electronic devices and components on coil panel 1, fin 2 and the circuit board, comprise that also drain pan one end in the electromagnetic oven is provided with two turbofan 3,4, the air outlet A of a turbofan is to living fin 1, and the air outlet B of another turbofan is to living electronic devices and components.

---described vortex flow fan is centrifugal water conservancy diversion, housing such as snail shelly, and turbofan is installed wherein.

---the mounting column that the housing of described turbofan is separately fixed on the drain pan by blower tray 5,6.

---described turbofan housing is among the deep bead 15,16 that only stays an air outlet.

For the better heat dissipation problem that solves electromagnetic oven, the utility model adopts turbofan to make radiator fan.Turbofan is another big class of running neck and neck with aerofoil fan, and air conducting equipment has been exactly Blower, and being translated into Chinese is hair-dryer, pressure fan, and the most common in the daily life is exactly the sort of the same air blast of hodmadod of keeping large-scale inflatable toys.

The working method of turbofan and aerofoil fan have bigger different, comparatively similar to water pump on the contrary.Its flabellum is vertical with the surfaces of revolution, circular array, air is by axially entering the space that annular flabellum surrounds, the centrifugal effect that is driven by the flabellum rotation laterally throws away, pushed during by straight tabular cross section, blown out along the tangent line of flabellum direction of rotation, at the peripheral gyrate scattering air-flow together that forms of flabellum equally based on the flabellum of Joukowski wing cross section curve design, be subjected to the water conservancy diversion of snail shelly housing again, tangentially blow out from the opening of a side.

The advantage of turbofan is:

1. can on a large scale length of blade, width of blade, blade quantity, air outlet shape etc. be adjusted according to using needs;

2. centrifugal water conservancy diversion, it is smooth-going, concentrated to send air-flow, and turbulent flow is few, non-blind area;

3. blade quantity is many, cross on the wind face the total projection area in addition greater than crossing the wind area, utilize centrifugal effect, can provide bigger blast than aerofoil fan;

The advantage of turbofan is outstanding, is used for electromagnetic oven, and heat dissipation problem is fully solved.

Drain pan of the present utility model has the flow-guiding structure of snail shelly housing, and turbofan is installed wherein, and structure as shown in Figure 1.

The utility model adopts two turbine modes, and a big turbofan is mainly dispelled the heat to core component high power valve IGBT and Qiao Dui, and it is than using conventional fan, low 8～10 ℃ of cooling-down effect.Another little turbofan is mainly dispelled the heat to resistance, electric capacity, transistor, transformer and coil panel etc.The utility model has good cooling system, makes the duty of electromagnetic oven reach lasting best, has also optimized the working environment of each components and parts, prolongs the service life of electromagnetic oven, and the noise when making electromagnetic oven work reduces greatly.

Description of drawings

Fig. 1 is the vertical view after the utility model is opened the crystallite plate.

Fig. 2 is the upward view of the utility model drain pan.

In Fig. 1～Fig. 2,1 is coil panel, and 2 is fin, and 3,4 is turbofan, and 5,6 is blower tray, and 7,8,9,10,11,12,13,14 is mounting column, and 15,16 is deep bead, and A, B are air outlet, and 17,18 is air inlet.

The specific embodiment

During enforcement,,, be equipped with suitable turbofan, when electromagnetic oven drain pan die sinking tool, fixed bit, the air inlet of turbofan and the position design of keeping out the wind entered injection mo(u)lding in the lump according to the needs of electromagnetic oven model with reference to shown in Figure 1.The hodmadod housing of built-in turbofan is pressed card with blower tray and be fixed on the pillar big turbofan air outlet aligning fin, little turbofan air outlet aligning resistance, electric capacity, transistor, transformer and coil panel with screw.Each electronic devices and components is added a cover the crystallite plate after installing properly, just finishes the utility model.

Claims

1. electromagnetic oven that turbofan is set, comprise the crystallite plate, electronic devices and components on coil panel (1), fin (2) and the circuit board, it is characterized in that also comprising that drain pan one end in the electromagnetic oven is provided with two turbofan (3,4), the air outlet of a turbofan (A) is to living fin (1), and the air outlet of another turbofan (B) is to living electronic devices and components.

2. electromagnetic oven according to claim 1 is characterized in that described vortex flow fan is centrifugal water conservancy diversion, housing such as snail shelly, and turbofan is installed wherein.

3. electromagnetic oven according to claim 1 is characterized in that the housing of described turbofan is separately fixed at the mounting column on the drain pan by blower tray (5,6).

4. electromagnetic oven according to claim 1 is characterized in that described turbofan housing is among the deep bead (15,16) that only stays an air outlet.