CN218041766U

CN218041766U - Magnetic circuit heat dissipation rear cover for double-voice-coil loudspeaker

Info

Publication number: CN218041766U
Application number: CN202221980311.5U
Authority: CN
Inventors: 曹永耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-13
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a magnetic circuit heat dissipation rear cover for a double-voice coil loudspeaker, which belongs to a loudspeaker part and comprises a rear cover body, wherein the lower part of the rear cover body is provided with a pit, and the side wall of the pit is provided with a plurality of strip-shaped heat dissipation holes which are consistent with the radial direction of the rear cover body; the side wall of the pit is also provided with a plurality of reinforcing ribs, and the reinforcing ribs and the heat dissipation holes are distributed on the side wall of the pit at intervals. Through add independent pit structure at the back lid body to set up the louvre and the strengthening rib of a plurality of bars on the lateral wall of pit, not only increased the area of louvre from this, promoted heat dispersion, reduced the heat that loudspeaker low voice coil loudspeaker voice coil work produced, also reserved the position of strengthening rib, can promote the support intensity of back lid body through the strengthening rib.

Description

Magnetic circuit heat dissipation rear cover for double-voice-coil loudspeaker

Technical Field

The utility model relates to a loudspeaker spare part, more specifically the utility model relates to a lid behind magnetic circuit heat dissipation that can be used to two voice coil loudspeaker voice coil.

Background

At present, the heat dissipation of a magnetic circuit of a loudspeaker is basically realized by additionally arranging air holes at the bottommost part of a rear cover or additionally arranging the air holes in the middle part and the bottom of the rear cover. For some loudspeakers with large heat productivity, the heat radiation performance is poor, and the air holes are increased to influence the magnetic circuit supporting strength of the rear cover, so that the structure of the rear cover is single, and more supporting mechanisms cannot be added for assistance, so that the structure of the rear cover of the loudspeakers, especially the loudspeaker with large heat productivity, needs to be researched and improved.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to above-mentioned not enough, provide a magnetic circuit heat dissipation back lid that can be used to two voice coil loudspeaker to expect to solve among the prior art back lid single structure of the same kind, heat dispersion is not good, and can influence the magnetic circuit bearing structure scheduling technical problem of back lid because of addding the bleeder vent heat dissipation.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a magnetic circuit heat dissipation rear cover for a double voice coil loudspeaker, which comprises a rear cover body, wherein the lower part of the rear cover body is provided with a pit, the side wall of the pit is provided with a plurality of strip-shaped heat dissipation holes, and the heat dissipation holes are consistent with the radial direction of the rear cover body; the side wall of the pit is also provided with a plurality of reinforcing ribs, and the reinforcing ribs and the heat dissipation holes are distributed on the side wall of the pit at intervals.

Preferably, the further technical scheme is as follows: the outer contour of the rear cover body is integrally in a circular truncated cone shape, and the side wall of the concave pit is an annular inclined surface.

The further technical scheme is as follows: the outer wall of the rear cover body is provided with a plurality of radiating fins, and the radiating fins are consistent with the radial direction of the rear cover body.

The further technical scheme is as follows: the rear cover body is arranged at the bottom of the double-voice-coil loudspeaker, and the heat dissipation holes are located between the bottom of the rear cover body and the lower washer sheet inside the double-voice-coil loudspeaker.

Compared with the prior art, one of the beneficial effects of the utility model is that: through addding independent pit structure at the back lid body to set up the louvre and the strengthening rib of a plurality of bars on the lateral wall of pit, not only increased the area of louvre from this, promote heat dispersion, reduce the heat that loudspeaker voice coil work produced, also reserved the position of strengthening rib, can promote the support intensity of back lid body through the strengthening rib, simultaneously the utility model provides a can be used to two voice coil loudspeaker's magnetic circuit heat dissipation back lid simple structure is suitable for and installs the use at the two voice coil loudspeaker rear portions of all kinds of specifications, and the range of application is wide.

Drawings

Fig. 1 is a schematic structural diagram for explaining an embodiment of the present invention;

fig. 2 is a view for explaining a dual voice coil speaker according to an embodiment of the present invention;

in the figure, 1 is a rear cover body, 2 is a pit, 3 is a heat dissipation hole, 4 is a reinforcing rib, 5 is a heat dissipation fin, 6 is a lower washer piece, and 7 is a voice coil.

Detailed Description

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

Referring to fig. 1, an embodiment of the present invention is a magnetic circuit heat dissipation rear cover for a dual voice coil speaker, including a rear cover body 1, a pit 2 is designed at the lower part of the rear cover body 1, a rim is arranged around the pit 2, then a plurality of strip-shaped heat dissipation holes 3 are arranged on the side wall of the pit 2, the heat dissipation holes 3 are in accordance with the radial direction of the rear cover body 1; the side wall of the pit 2 is also provided with a plurality of reinforcing ribs 4, and the reinforcing ribs 4 and the heat dissipation holes 3 are distributed on the side wall of the pit 2 at intervals as shown in the figure. As shown in fig. 1, preferably, the overall profile of the back cover body 1 is designed to be a circular truncated cone, and the side wall of the recess 2 is an annular inclined surface, so that the back cover structure better conforms to the general structural design of a dual voice coil speaker, and can be conveniently installed at the back of the dual voice coil speaker in a manner substantially the same as that of a similar back cover.

In this embodiment, through add independent pit 2 at back lid body 1 to set up the louvre 3 and the strengthening rib 4 of a plurality of bars on the lateral wall of pit 2, not only increased louvre 3's area from this, promoted heat dispersion, reduced the heat that loudspeaker voice coil work produced, also reserved the position of strengthening rib 4, can promote the support intensity of back lid body through strengthening rib 4.

Moreover, for further promoting the heat dispersion of back lid, still can design a plurality of radiating fin 5 on the outer wall of back lid body 1 to this radiating fin 5 also need design to be consistent with the radial of back lid body 1, through radiating fin 5 heat conduction on back lid body 1, realize supplementary heat dissipation. When the rear cover is used, the rear cover body 1 is installed at the bottom of the double-voice-coil loudspeaker, as shown in fig. 2, after the installation, the heat dissipation holes 3 are located between the bottom of the rear cover body 1 and the lower washer sheet 6 inside the double-voice-coil loudspeaker.

Referring to fig. 1 and 2, the rear cover is installed at the rear of the dual voice coil speaker when in use, at this time, the heat dissipation holes in the rear cover body 1 are arranged between the bottom of the rear cover body 1 and the lower washer sheet 6, so that the dual voice coil speaker is in use, the heat generated by the operation of the voice coil 7 is directly contacted with the air through the heat dissipation holes in a plurality of strip shapes, the heat is dissipated under the action of the air flow, and the heat dissipation fins 5 pass through the outer side of the rear cover body 1, the heat dissipation is synchronously realized, the overhigh temperature when the dual voice coil speaker is in use is avoided, the use is influenced, the use efficiency and the service life of the dual voice coil speaker are further improved, and the stable reliability of the high-power use of the speaker is improved.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a lid behind magnetic circuit heat dissipation that can be used to two voice coil loudspeaker, includes back lid body (1), its characterized in that: the lower part of the rear cover body (1) is provided with a pit (2), the side wall of the pit (2) is provided with a plurality of strip-shaped heat dissipation holes (3), and the heat dissipation holes (3) are consistent with the radial direction of the rear cover body (1); the side wall of the pit (2) is also provided with a plurality of reinforcing ribs (4), and the reinforcing ribs (4) and the heat dissipation holes (3) are distributed on the side wall of the pit (2) at intervals.

2. The magnetic circuit heat dissipation back cover for a dual voice coil speaker as claimed in claim 1, wherein: the whole external profile of the rear cover body (1) is in a circular truncated cone shape, and the side wall of the concave pit (2) is an annular inclined surface.

3. The magnetic circuit heat dissipation back cover for a dual voice coil speaker as claimed in claim 1, wherein: the outer wall of the rear cover body (1) is provided with a plurality of radiating fins (5), and the radiating fins (5) are consistent with the radial direction of the rear cover body (1).

4. The magnetic circuit heat dissipation back cover for a dual voice coil speaker as claimed in claim 1, wherein: the rear cover body (1) is installed at the bottom of the double-voice-coil loudspeaker, and the heat dissipation holes (3) are located between the bottom of the rear cover body (1) and the lower washer pieces (6) inside the double-voice-coil loudspeaker.