CN201207279Y - Magnetic feedback apparatus construction with improved trumpet - Google Patents

Abstract

The utility model relates to an improved structure of magnetic back device with horn head, which comprises a receiving disc body, a magnetic washer and a metal washer. The utility model is characterized in that: the middle position of the receiving disc body is downwards provided with a concaved part, the concaved part is provided with at least one or more heat dispersion holes, the magnetic washer is arranged in the concaved part of the receiving disc body, the metal washer is arranged on the upper end face of the magnetic washer and closes the end face of the concaved part of the receiving disc body. The utility model has the advantages of double heat dispersion, simple structure, and low cost.

Description

The magnetic return device structure of improved head of the trumpet

Technical field

The utility model relates to a kind of magnetic return device of head of the trumpet, specifically, is a kind of magnetic return device structure of sending the improved head of the trumpet of the alert song of high-decibel.

Background technology

Along with rapid economic development, the people's lives quality also improves constantly now, therefore, for working work or go sightseeing and often utilize automobile as walking-replacing tool, also has been the indispensable necessitys of people.When ordinary consumer was bought new car, manufacturer all can give alarm mostly, and to prevent liking that car suffers the thieves or robbers who act under cover of night's theft, therefore, the alarm that the consumer utilizes manufacturer mostly and given is locked the love car of oneself, provides safe guarantee with this.If when having the thieves or robbers who act under cover of night to attempt deathwatch consumer's vehicle, be bound to trigger alarm, and the head of the trumpet in the alarm will produce the loud sound of high-decibel,, make consumer's vehicle be able to safety approximately in this way to give up thieves or robbers who act under cover of night deathwatch's movement.

Above-mentioned alarm produces the sound of high-decibel, as long as utilize the magnetic return device structure of alarm inside trumpet head, after alarm drove, the magnetic return device in the head of the trumpet promptly can vibrate up and down at a high speed, collocation is connected mutually with head of the trumpet again, can send the sound of high-decibel; Yet the magnetic return device can produce high temperature under high speed vibration, at this moment, if can't effectively distribute high temperature, easily causes head of the trumpet Yin Gaowen and shortens the life-span.

Therefore the magnetic return device of known head of the trumpet exists above-mentioned all inconvenience and problem.

Summary of the invention

The purpose of this utility model is to provide a kind of and utilizes the accommodating disc body by integral forming and offer louvre and understand the magnetic return device structure of the improved head of the trumpet of two heat radiation functions thoroughly.

Another purpose of the present utility model is to provide a kind of magnetic return device structure of simple in structure, improved head of the trumpet that cost of manufacture is low.

The technical scheme that realizes the utility model purpose is: a kind of magnetic return device structure of improved head of the trumpet, comprise a ccontaining disk body, and a magnetic pad and a metallic gasket is characterized in that,

The place is arranged with downwards and forms a recess in the middle of the described ccontaining disk body, and offers more than one heat radiation hole in described recess at least;

Described magnetic pad sets in the recess of described ccontaining disk body;

Described metallic gasket is arranged on the upper surface of described magnetic pad, and seals the end face of ccontaining disk body recess.

The magnetic return device structure of improved head of the trumpet of the present utility model can also be further achieved by the following technical measures.

The magnetic return device structure of aforesaid improved head of the trumpet, wherein said magnetic pad produces changes of magnetic field.

After adopting technique scheme, the magnetic return device structure of improved head of the trumpet of the present utility model has the following advantages:

The accommodating disc body by integral forming and offer the heat radiation hole have dual heat radiation function.

2. the magnetic return device of improved head of the trumpet is simple in structure, cost of manufacture is low.

Description of drawings

Fig. 1 is an isometric exploded view of the present utility model;

Fig. 2 is that solid of the present utility model is in conjunction with view;

Fig. 3 is an embodiment constitutional diagram of the present utility model;

Fig. 4 is another embodiment constitutional diagram of the present utility model.

Embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is illustrated further.

At first see also Fig. 1 and Fig. 2, Fig. 1 is an isometric exploded view of the present utility model, and Fig. 2 is that solid of the present utility model is in conjunction with view.As shown in the figure, the place is arranged with downwards and forms a recess 111 in the middle of the described ccontaining disk body 11, and appropriate location is offered more than one heat radiation hole 112 at least in described recess.Described magnetic pad 12 sets in the recess 111 of ccontaining disk body 11; Described magnetic pad 12 produces changes of magnetic field.Described metallic gasket 13 is arranged on the upper surface of magnetic pad 12, and seals the recess 111 of ccontaining disk body 11.

Now see also Fig. 3 and Fig. 4, they are respectively embodiment constitutional diagram of the present utility model.Described magnetic return device 1 of the present utility model is arranged to be connected mutually state with head of the trumpet 2, promptly after energising, magnetic pad 12 in the described magnetic return device 1 produces the variation in magnetic field, at this moment, sound eardrum 21 in the head of the trumpet 2 is subjected to the influence of changes of magnetic field, make in the described head of the trumpet 2 sound eardrum 21 fast on, following vibrations, and send the alert song of high-decibel, at this moment, magnetic pad 12 in the described magnetic return device 1 produces high temperature, if continue to allow high temperature be stranded in the magnetic return device 1, easily cause magnetic pad 12 the demagnetization situation to take place because of high temperature, and the utility model slightly is the mode of a U-shaped body by described ccontaining disk body 11, except its area of dissipation big, thin thickness is offered more than one heat radiation hole 112 on the ccontaining disk body 11 of arranging in pairs or groups again at least, can avoid high temperature to overstock in described ccontaining disk body 11, and can high temperature be given out the outside rapidly by heat radiation hole 112 by heat radiation hole 112, and effectively the high temperature in the magnetic return device 1 is given out the outside with this, make it reach the purpose of best radiating effect.

Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique under the situation that does not break away from spirit and scope of the present utility model, can also be made various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

The element numbers explanation

1 magnetic return device

11 accommodating disk bodies

111 recesses

112 heat radiation holes

12 magnetic pads

13 metallic gaskets

2 head of the trumpet

21 sound eardrums.

Claims (1)

1. the magnetic return device structure of an improved head of the trumpet comprises a ccontaining disk body, and a magnetic pad and a metallic gasket is characterized in that:

The place is arranged with downwards and forms a recess in the middle of the described ccontaining disk body, and offers more than one heat radiation hole in described recess at least;

Described magnetic pad sets in the recess of described ccontaining disk body;

Described metallic gasket is arranged on the upper surface of described magnetic pad, and seals the end face of ccontaining disk body recess.

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