CN214099144U - Prevent overheated SMD bee calling organ - Google Patents

Abstract

The utility model relates to the technical field of buzzers, specifically provide an anti-overheating SMD buzzer, including base, casing, iron core, coil, magnet, heat dissipation cover, base and trembler, the iron core is fixed on the base, the coil sets up in the periphery of iron core, magnet sets up in the periphery of coil, the heat dissipation cover sets up in the periphery of magnet, the casing cover is established in the periphery of heat dissipation cover, the edge of trembler is fixed on the base, the interior top of trembler and casing is connected respectively to the both ends of base, trembler and casing interconnect and enclose and form the sound-making chamber; a plurality of cushion blocks are arranged between the magnet and the base; the heat dissipation sleeve is also provided with heat dissipation fins. The coil is cooled by the cooling sleeve, so that the coil can be prevented from being overheated and deformed, the base is arranged to separate the vibrating piece from the upper part of the coil, and the cushion block is arranged to separate the lower part of the magnet from the base, so that hot air flows out of the upper part of the coil, and cooler air flows through the coil from the lower part of the coil, and circulating cooling of the air flow is realized.

Description

Prevent overheated SMD bee calling organ

Technical Field

The utility model relates to a bee calling organ technical field especially relates to a prevent overheated SMD bee calling organ.

Background

The commonly used buzzer is mainly divided into two types of piezoelectric buzzer and electromagnetic buzzer, and the electromagnetic buzzer is long in service life due to excellent timbre and is widely applied to various electronic devices needing sounding. The electromagnetic buzzer principle is that a magnetic field generated after the coil is electrified acts on the metal diaphragm to enable the metal diaphragm to vibrate and sound, the coil can generate a large amount of heat after being electrified for a long time, the internal temperature of the electromagnetic buzzer is too high, the circuit is easily damaged, the coil is also deformed when being heated, and the normal work of the electromagnetic buzzer is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the heat dissipation problem of buzzer, the utility model provides a prevent overheated SMD buzzer and solve above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: an anti-overheating SMD buzzer comprises a base, a shell, an iron core, a coil, a magnet, a heat dissipation sleeve, a base and a vibrating piece, wherein the iron core is fixed on the base, the coil is arranged on the periphery of the iron core, the magnet is arranged on the periphery of the coil, the heat dissipation sleeve is arranged on the periphery of the magnet, the shell is covered on the periphery of the heat dissipation sleeve, an iron sheet is arranged in the center of the vibrating piece and located right above the iron core, the edge of the vibrating piece is fixed on the base, two ends of the base are respectively connected with the vibrating piece and the inner top of the shell, and the base, the vibrating piece and the shell are mutually connected and surround to form a sound generating cavity;

a plurality of cushion blocks are arranged between the magnet and the base, and the magnet is clamped on the cushion blocks;

and the heat dissipation sleeve is also provided with heat dissipation fins.

Preferably, the base and the shell are connected through a shock absorption rubber strip.

Preferably, a gap is left between the heat dissipation case and the vibrating piece.

Preferably, one end of the heat dissipation sleeve, which is close to the base, is also provided with heat dissipation holes.

Preferably, the top of the shell is further provided with a sound emitting hole, and the sound emitting hole is communicated with the sound emitting cavity.

Preferably, the inner top of the shell is provided with a dustproof sponge at the position of the sound hole.

Preferably, the bottom end of the iron core is further provided with a heat dissipation disc, the heat dissipation disc is fixed on the base, and the coil is located above the heat dissipation disc.

Preferably, the heat dissipation sleeve is a copper sleeve.

The beneficial effects of the utility model are that, dispel the heat around to the coil through setting up the heat dissipation cover, can prevent the overheated deformation of coil, set up the base with the upper portion separation of trembler and coil, set up the below and the base separation that the cushion made magnet for the hot gas flow flows from the upper portion of coil, and cooler air flows through the coil from the below of coil, has realized the circulation heat dissipation of air current.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a preferred embodiment of an anti-overheating SMD buzzer of the present invention;

fig. 2 is an exploded view of an anti-overheating SMD buzzer of the present invention;

fig. 3 is a schematic structural view of a heat dissipation sleeve of an anti-overheating SMD buzzer of the present invention;

fig. 4 is an internal structure schematic diagram of the anti-overheating SMD buzzer of the present invention.

In the figure, the heat dissipation plate comprises a base 1, a base 2, a shell 3, an iron core 4, a coil 5, a magnet 6, a heat dissipation sleeve 7, a base 8, a vibrating piece 801, an iron sheet 101, a shock absorption rubber strip 201, a sound emission hole 501, a cushion block 601, a heat dissipation hole 602, a heat dissipation fin 301 and a heat dissipation plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 4, the present invention provides an embodiment of an anti-overheating SMD buzzer, including a base 1, a housing 2, an iron core 3, a coil 4, a magnet 5, a heat dissipation sleeve 6, a base 7 and a vibrating reed 8, wherein the iron core 3 is fixed on the base 1, the coil 4 is arranged on the periphery of the iron core 3, the magnet 5 is arranged on the periphery of the coil 4, the heat dissipation sleeve 6 is arranged on the periphery of the magnet 5, the heat dissipation sleeve 6 is a copper sleeve, on one hand, the thermal conductivity of copper metal is good, which helps to dissipate heat, on the other hand, the copper sleeve is not attracted to the magnet 5, which can prevent the iron core 3 from attracting the heat dissipation sleeve 6 to shake when the coil 4 works, the housing 2 is covered on the periphery of the heat dissipation sleeve 6, a cavity formed by the housing 2 and the base 1, which plays a role of a resonance cavity, the center of the vibrating reed 8 has an iron sheet 801, the iron sheet 801 is, trembler 8 and casing 2's interior top is connected respectively at base 7's both ends, connect through damping rubber strip 101 between base 1 and the casing 2, when trembler 8 vibration sound production, can drive base 7 and 2 vibrations of casing, setting through damping rubber strip 101 this moment, can cushion the shock attenuation to casing 2, casing 2 has been reduced to base 1's impact, make the installation that base 1 can be stable fixed, base 7, trembler 8 and 2 interconnect of casing surround and form the sound-making chamber, thereby improve bee calling organ's volume.

The sound hole 201 has still been seted up at casing 2's top, and sound hole 201 intercommunication sound cavity makes the sound can be concentrated more send from sound hole 201, and simultaneously when buzzer pronunciation, the sound wave also can drive the air in casing 2 and exchange the heat dissipation with the outside air from sound hole 201, and the interior top of casing 2 is located sound hole 201 and still is provided with dustproof sponge and prevents dust.

A plurality of cushion blocks 501 are arranged between the magnet 5 and the base 1, the magnet 5 is clamped on the cushion blocks 501, after the magnet 5 is lifted through the cushion blocks 501, the bottom of the magnet 5 is separated from the base 1 to form a gap, which is beneficial to air exchange between the inner ring of the magnet 5 and the outer ring of the magnet 5, and assists in heat dissipation of the coil 4 positioned in the inner ring of the magnet 5, so that the heat dissipation effect is improved, a gap is reserved between the heat dissipation sleeve 6 and the vibrating plate, a heat dissipation hole 601 is also formed at one end of the heat dissipation sleeve 6, which is close to the base 1, when the vibrating plate vibrates, the air in the shell 2 is driven to flow, hot air flows out from the gap between the heat dissipation sleeve 6 and the vibrating plate, cold air flows in from the heat dissipation hole 601 at the bottom of the heat dissipation sleeve 6, so that air circulation is formed around the coil 4, and heat exchange is carried out with the shell 2 to carry out heat dissipation;

the heat dissipation sleeve 6 is further provided with heat dissipation fins 602, the contact area between the heat dissipation sleeve 6 and the air is increased through the heat dissipation fins 602, the heat exchange between the heat dissipation sleeve 6 and the air is accelerated, and then the heat is transferred to the shell 2 through the heat dissipation sleeve 6 to be dissipated.

The bottom of iron core 3 still has heat dissipation dish 301, and heat dissipation dish 301 is fixed on base 1, and coil 4 is located the top of heat dissipation dish 301, and heat dissipation dish 301 has increased the area of contact of iron core 3 and base 1, and on the one hand iron core 3 can carry out the heat exchange heat dissipation through heat dissipation dish 301 with base 1, and on the other hand heat dissipation dish 301 also makes the connection between iron core 3 and the base 1 more firm.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. The utility model provides an prevent overheated SMD bee calling organ which characterized in that: the coil is arranged on the periphery of the iron core, the magnet is arranged on the periphery of the coil, the heat dissipation sleeve is arranged on the periphery of the magnet, the shell is covered on the periphery of the heat dissipation sleeve, an iron sheet is arranged in the center of the vibration sheet and located right above the iron core, the edge of the vibration sheet is fixed on the base, two ends of the base are respectively connected with the vibration sheet and the inner top of the shell, and the base, the vibration sheet and the shell are mutually connected and surrounded to form a sound generating cavity;

a plurality of cushion blocks are arranged between the magnet and the base, and the magnet is clamped on the cushion blocks;

and the heat dissipation sleeve is also provided with heat dissipation fins.

2. An anti-overheating SMD buzzer as claimed in claim 1, characterised in that: the base is connected with the shell through a damping rubber strip.

3. An anti-overheating SMD buzzer as claimed in claim 2, characterised in that: and a gap is reserved between the heat dissipation sleeve and the vibrating plate.

4. An anti-overheating SMD buzzer as claimed in claim 3, characterised in that: one end of the heat dissipation sleeve close to the base is further provided with heat dissipation holes.

5. An anti-overheating SMD buzzer as claimed in claim 4, characterised in that: the top of the shell is further provided with a sounding hole, and the sounding hole is communicated with the sounding cavity.

6. An anti-overheating SMD buzzer as claimed in claim 5, characterised in that: the inner top of the shell is positioned at the sounding hole and is also provided with a dustproof sponge.

7. An anti-overheating SMD buzzer as claimed in claim 6, characterised in that: the bottom of iron core still has the heat dissipation dish, the heat dissipation dish is fixed on the base, the coil is located on the heat dissipation dish.

8. An anti-overheating SMD buzzer as claimed in claim 7, characterised in that: the heat dissipation sleeve is a copper sleeve.

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