CN212724705U

CN212724705U - Electromagnetic buzzer with heat dissipation function

Info

Publication number: CN212724705U
Application number: CN202020786192.4U
Authority: CN
Inventors: 冯茂祥; 王永健; 弘富顺
Original assignee: Xinghua Huaxunda Electronics Co ltd
Current assignee: Xinghua Huaxunda Electronics Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-03-16
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses an electromagnetic type buzzer that possesses heat dissipation function, which comprises a housin, the inside meso position in upper end of casing is provided with the sound hole, the upper end laminating of casing is connected with the sealing layer, the bottom joint of casing has the bottom plate, the inside of casing is provided with vibrates the circuit board, it is connected with the terminal to vibrate circuit board bottom. The beneficial effects of the utility model are that the inside of casing is provided with a plurality of curved heat transfer plates, the heat transfer plate is the unclosed setting of arc, the heat transfer plate is a plurality of settings, carry out inside thermal derivation through a plurality of heat transfer plates, the heat transfer plate that the arc was unclosed sets up can avoid causing the influence to inside magnetic circuit, the heat transfer plate passes through the heat conduction pole with the heat and transmits the heat dissipation strip on, the heat dissipation strip can be with heat and air heat exchange, the heat dissipation of carrying out the device, a plurality of evenly distributed's fin can form vertically direction air current, cold air current flows in from the bottom, hot gas flow top after the heat exchange flows, accomplish quick heat dissipation.

Description

Electromagnetic buzzer with heat dissipation function

Technical Field

The utility model belongs to the technical field of buzzer, concretely relates to electromagnetic type buzzer that possesses heat dissipation function.

Background

The electromagnetic buzzer is a buzzer, different from a piezoelectric buzzer, and is an electronic sound device which utilizes the action of an electromagnetic coil on a buzzer to produce sound and is used as a sound production device for an electronic product.

According to the electromagnetic buzzer with the heat dissipation function, disclosed by the authorized publication number CN108010509A, the waterproof protective cover, the heat dissipation layer, the heat dissipation groove, the heat dissipation hole and the heat dissipation fin are arranged, so that the problems that the existing electromagnetic buzzer is poor in heat dissipation effect and the temperature inside the device is easily overhigh after long-time operation are solved, but the heat dissipation effect is not ideal enough and cannot achieve the preset heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electromagnetic type buzzer that possesses heat dissipation function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electromagnetic type buzzer that possesses heat dissipation function, includes the casing, the inside meso position in upper end of casing is provided with the sound hole, the upper end laminating of casing is connected with the sealing layer, the bottom joint of casing has the bottom plate, the inside of casing is provided with vibrates the circuit board, it is connected with the terminal to vibrate circuit board bottom, the upper end central point that vibrates the circuit board puts and is connected with the iron core, cup joint on the iron core and be connected with the coil, the inner wall joint of casing has magnet, the upper end of casing is inlayed and is connected with the heat transfer plate, one side of heat transfer plate is connected with the heat conduction pole, the one end of heat conduction pole is connected with the heat dissipation strip, the outer arm of casing is connected with the fin, the inside of fin is inlayed and is connected with the.

Preferably, the bottom of casing sets up and bottom plate assorted joint groove, the bottom plate passes through colloid sealing connection with the casing.

Preferably, the number of the binding posts is two, and the two binding posts are different in length.

Preferably, the heat transfer plates are arranged in a plurality, and the heat transfer plates are arranged in an arc-shaped unclosed manner.

Preferably, the heat conduction rods are arranged in plurality and correspond to the fins.

Preferably, the heat dissipation strip is vertically arranged inside the fin, and the heat dissipation strip protrudes out of the fin.

Preferably, the fins are arranged in a plurality, and the fins are distributed at equal intervals on the outer arm of the shell.

Preferably, the vibrating diaphragm is arranged elastically, and the iron sheet is arranged in the center of the axis of the device.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a heat dissipation device, including casing, heat transfer plate, heat dissipation strip, cold air flow, the inside heat transfer plate that is provided with a plurality of arcs at the casing, the heat transfer plate is the arc setting of not closing, the heat transfer plate is a plurality of settings, carry out inside thermal derivation through a plurality of heat transfer plates, the heat transfer plate that the arc set up of not closing can avoid causing the influence to inside magnetic circuit, the heat transfer plate transmits the heat to the heat dissipation strip through the conducting rod, the heat dissipation strip can be with heat and air heat exchange, carry out the heat dissipation of device, a plurality of evenly distributed's fin can form vertically direction air current, cold air flow.

(2) The upper end and the bottom of the shell are connected with the corresponding sealing layer and the bottom plate, so that the sealing performance of the device on the whole can be guaranteed, the defect that the traditional perforated heat conduction enters dust is avoided, the whole stable operation of the device can be guaranteed, and the service life of the device is prolonged.

Drawings

Fig. 1 is a schematic plan view of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the heat transfer plate connection of the present invention;

fig. 4 is an enlarged view of a structure in fig. 1.

In the figure: 1. a housing; 2. a sound hole; 3. a sealing layer; 4. a base plate; 5. vibrating the circuit board; 6. a binding post; 7. an iron core; 8. a coil; 9. a magnet; 10. a heat transfer plate; 11. a heat conducting rod; 12. a heat dissipating strip; 13. a fin; 14. a vibrating membrane; 15. iron sheets.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model provides an electromagnetic buzzer with heat dissipation function, casing 1's the inside meso position in upper end is provided with sound hole 2, casing 1's upper end laminating is connected with sealing layer 3, casing 1's bottom joint has bottom plate 4, casing 1's inside is provided with vibrates the circuit board 5, it is connected with terminal 6 to vibrate circuit board 5 bottom, the upper end central point that vibrates circuit board 5 puts and is connected with iron core 7, cup joint has coil 8 on the iron core 7, casing 1's inner wall joint has magnet 9, casing 1's upper end is inlayed and is connected with heat transfer plate 10, one side of heat transfer plate 10 is connected with heat conduction pole 11, heat conduction pole 11's one end is connected with heat dissipation strip 12, casing 1's outer arm is connected with fin 13, fin 13's inside is inlayed and is connected with heat dissipation strip 12, casing 1's internal.

In this embodiment, it is preferred, casing 1's bottom set up with bottom plate 4 assorted joint groove, bottom plate 4 and casing 1 pass through colloid sealing connection, encapsulate casing 1's bottom through bottom plate 4, casing 1 carries out holistic encapsulation.

In this embodiment, preferred, terminal 6 sets up two, and two terminals 6 are different in size and set up, and terminal 6 through the bottom carries out the switch-on of internal line, and terminal 6 of two different settings can connect the resolution of electrode, and it is convenient to connect.

In this embodiment, it is preferable that the heat transfer plates 10 are provided in plural, the heat transfer plates 10 are provided in an arc shape, and the heat transfer plates 10 provided in the arc shape are not closed, so that the heat transfer plates 10 provided in the arc shape are not closed, and the influence on the magnetic circuit inside can be avoided.

In this embodiment, preferably, the heat conduction rod 11 is provided in plurality, the heat conduction rod 11 is provided corresponding to the fins 13, the heat conduction rod 11 provided in plurality is used for guiding out the internal heat to dissipate the heat, and the fins 13 allow the air flow to flow longitudinally to perform heat exchange and dissipation.

In this embodiment, preferably, the heat dissipation strips 12 are vertically arranged inside the fins 13, the heat dissipation strips 12 protrude from the fins 13, and the vertically arranged heat dissipation strips 12 increase the contact area to facilitate heat dissipation by contacting the protruding heat dissipation strips 12 with air.

In this embodiment, preferably, the fins 13 are provided in a plurality, the fins 13 are distributed at the outer arm of the housing 1 at uniform intervals, and an air duct is formed by the plurality of uniformly provided fins 13, so that the longitudinal flow of the air flow is ensured, and the heat dissipation effect is good.

In this embodiment, preferably, the vibration membrane 14 is disposed elastically, the iron sheet 15 is disposed at the center of the axis of the device, and the elastic vibration membrane 14 drives the iron sheet 15 to vibrate elastically to form a buzzer.

The utility model discloses a theory of operation and use flow: when the device is used, a plurality of arc-shaped heat transfer plates 10 are arranged in a shell 1, the heat transfer plates 10 are arranged in an arc-shaped unclosed mode, the heat transfer plates 10 are arranged in a plurality of modes, internal heat is led out through the heat transfer plates 10, the heat transfer plates 10 arranged in the arc-shaped unclosed mode can avoid influencing an internal magnetic loop, the heat transfer plates 10 transfer the heat to heat dissipation strips 12 through heat conduction rods 11, the heat dissipation strips 12 can exchange heat with air to dissipate heat of the device, a plurality of uniformly distributed fins 13 can form vertical guide airflow, cold airflow flows in from the bottom, hot airflow flows out from the top after heat exchange to finish rapid heat dissipation, corresponding sealing layers 3 and bottom plates 4 are connected to the upper end and the bottom of the shell 1, the sealing performance of the device on the whole can be guaranteed, the defect that the traditional tapping heat conduction enters dust is avoided, and the stable operation of the device on, the service life of the device is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electromagnetic type buzzer that possesses heat dissipation function, includes casing (1), its characterized in that: a sound hole (2) is formed in the middle inside the upper end of the shell (1), a sealing layer (3) is connected to the upper end of the shell (1) in a laminating mode, a bottom plate (4) is connected to the bottom of the shell (1) in a clamping mode, a vibration circuit board (5) is arranged inside the shell (1), a binding post (6) is connected to the bottom of the vibration circuit board (5), an iron core (7) is connected to the upper end center of the vibration circuit board (5), a coil (8) is connected to the iron core (7) in a sleeved mode, a magnet (9) is connected to the inner wall of the shell (1) in a clamping mode, a heat transfer plate (10) is connected to the upper end of the shell (1) in an embedded mode, a heat conduction rod (11) is connected to one side of the heat transfer plate (10), a heat dissipation strip (12) is connected to one end of the heat conduction rod (11, the inside connection of casing (1) has vibrations membrane (14), the central point of vibrations membrane (14) puts and is connected with iron sheet (15).

2. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the bottom of casing (1) sets up and bottom plate (4) assorted joint groove, bottom plate (4) pass through colloid sealing connection with casing (1).

3. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the wiring terminal (6) is provided with two wiring terminals (6) which are different in length.

4. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the heat transfer plates (10) are arranged in a plurality of ways, and the heat transfer plates (10) are arranged in an arc-shaped unclosed way.

5. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the heat conducting rods (11) are arranged in a plurality, and the heat conducting rods (11) and the fins (13) are arranged correspondingly.

6. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the radiating strip (12) is vertically arranged inside the fin (13), and the radiating strip (12) protrudes out of the fin (13).

7. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the fins (13) are arranged in a plurality of ways, and the fins (13) are distributed on the outer arm of the shell (1) at uniform intervals.

8. The electromagnetic buzzer with the heat radiation function according to claim 1, characterized in that: the vibrating membrane (14) is arranged elastically, and the iron sheet (15) is arranged in the center of the axis of the device.