CN211720726U

CN211720726U - Passive radiation module and electronic equipment

Info

Publication number: CN211720726U
Application number: CN202020884654.6U
Authority: CN
Inventors: 张永龙
Original assignee: Goertek Intelligent Technology Co Ltd
Current assignee: Goertek Intelligent Technology Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-10-20
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a passive radiation module and electronic equipment, passive radiation module include passive radiator and body, the tip of body has a sound port, the lateral wall of body is equipped with the installation through-hole, go out the sound port with form the biography sound passageway between the installation through-hole, passive radiator install in installation through-hole. The pipe body is the platykurtic, the pipe body includes two platykurtics that set up relatively, the installation through-hole is located the platykurtic. The pipe body is further provided with a support lug, and the support lug is provided with a fixing hole. The pipe body is integrally formed by injection molding. Above-mentioned passive radiation module, occupation space is less, and passive radiation module can conveniently install in electronic equipment's inside firmly.

Description

Passive radiation module and electronic equipment

Technical Field

The utility model relates to an acoustics equipment technical field, in particular to passive radiation module and electronic equipment.

Background

As known, an electronic device capable of generating sound for a sound box or the like generally includes a housing, an active speaker unit and a passive unit (i.e., a passive radiator), wherein the active speaker unit is disposed in the housing.

The passive radiator, which is often similar in appearance to the active speaker unit, but is not connected to any voice coil or circuitry, is typically used to adjust the bass and thus the overall timbre of the enclosure. In the working process, the active loudspeaker unit drives the air in the box body to flow, and the passive radiator is driven by the air in the box body to produce sound passively.

In the prior art, for the installation of the passive radiator, the passive radiator is usually disposed at the bottom of the box or at two sides of the box, and the passive radiator is supported by the support member, so that the passive radiator resonates at different frequencies.

However, the miniaturization trend of the sound box is more and more practical, the volume of the box is also smaller and smaller, the installation position of the passive radiator is greatly limited, the installation operation of the passive radiator is more and more inconvenient, the passive radiator can not be conveniently and stably assembled relative to the box, and on the basis, technicians in the field need to focus on the installation mode of the passive radiator, and the corresponding structure of the passive radiator is necessary to be optimized and improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a passive radiation module and electronic equipment, the occupation space of passive radiation module is less, and the passive radiation module can conveniently be installed in electronic equipment's inside firmly.

In order to achieve the above object, the utility model provides a passive radiation module, including passive radiator and body, the tip of body has a sound port, the lateral wall of body is equipped with the installation through-hole, go out the sound port with form the sound channel between the installation through-hole, passive radiator install in the installation through-hole.

Optionally, the tube body is flat, the tube body includes two flat surfaces that are arranged oppositely, and the installation through hole is arranged on the flat surfaces.

Optionally, the body still is equipped with the journal stirrup, the journal stirrup is equipped with the fixed orifices.

Optionally, the tube body is integrally injection molded.

Optionally, the number of the sound outlet ports is two, the two sound outlet ports are respectively arranged at two ends of the pipe body, the pipe body is provided with a partition plate to form two sound transmission channels, and any sound transmission channel comprises at least one installation through hole.

Optionally, the pipe body is provided with two of the installation through holes, and the two installation through holes are arranged on different sides of the pipe body relatively.

Optionally, the pipe body is provided with two installation through holes, and the two installation through holes are arranged on the same side of the pipe body.

Optionally, the isolation plate is removably connected to the tube.

The utility model also provides an electronic equipment, including foretell passive radiation module.

Optionally, the electronic device is specifically a sound box.

Compared with the prior art, the passive radiation module provided by the utility model has the advantages that the passive radiator is arranged in the installation through hole of the tube body, so that the relative positions of the passive radiator and the tube body are fixed, in the working process, the passive radiator vibrates under the action of the active loudspeaker unit, the sound wave is transmitted in the sound transmission channel and is finally transmitted out from the sound outlet port, and the sound is generated; according to the passive radiation module, the position of the passive radiator can be fixed by utilizing the mounting through hole of the tube body, so that the passive radiator can realize a low-frequency effect without supporting the passive radiator through other complex supporting pieces, and the occupied space of the passive radiation module is favorably reduced; meanwhile, after the passive radiator and the tube body are installed, the passive radiating module can be conveniently and stably installed in the electronic equipment, so that the position fixing of the passive radiating module and the electronic equipment is ensured.

The utility model discloses still provide an electronic equipment with passive radiation module, beneficial effect is as mentioned above, and the here will not be repeated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of a passive radiating module according to an embodiment of the present invention;

fig. 2 is a structural diagram of an angle of a tube of a passive radiating module according to an embodiment of the present invention;

fig. 3 is a structural diagram of another angle of the tube of the passive radiating module according to an embodiment of the present invention;

fig. 4 is an overall structural diagram of an electronic device with a passive radiating module according to an embodiment of the present invention;

fig. 5 is an exploded view of an electronic device with a passive radiating module according to an embodiment of the present invention.

Wherein:

1-a passive radiator;

2-pipe body, 20-flat surface, 21-sound outlet port, 22-mounting through hole, 23-lug, 231-fixing hole and 24-isolation plate;

the acoustic emission device comprises a 3-reflection cone acoustic radiation mesh enclosure, a 4-driving unit, a 5-upper cavity, a 6-passive radiation module, a 7-lower cavity, an 8-base and a 71-sound outlet window.

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.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The passive radiation module 6 provided by the embodiment of the present invention, referring to fig. 1 to fig. 3 of the specification, includes a passive radiator 1 and a pipe body 2, obviously, the pipe body 2 should have an internal pipeline, and the internal pipeline of the pipe body 2 is communicated with the outside; the end of the pipe body 2 has a sound outlet port 21, that is, the sound outlet port 21 is the end of the inner pipe, and the inner pipe is communicated with the outside through the sound outlet port 21.

The side wall of the pipe body 2 is provided with a mounting through hole 22, the mounting through hole 22 communicates with the internal pipe, and a sound transmission channel is formed between the mounting through hole 22 and the sound outlet port 21, and the sound transmission channel can be considered as a part of the internal pipe.

Obviously, the sound wave located outside the mounting through-hole 22 can flow in the following path:

the sound wave enters the sound transmission channel (i.e. the inner pipe) through the installation through hole 22, and then passes through the sound transmission channel and is transmitted out from the sound outlet port 21.

The passive radiator 1 is mounted in the mounting through hole 22, and generally, the passive radiator 1 is in a shape of a circular disc, and then the mounting through hole 22 may also be a circular hole, so that the passive radiator 1 is fixed to the mounting through hole 22. Obviously, when the passive radiator 1 is mounted compared to the mounting through hole 22, the relative position between the passive radiator 1 and the body 2 is fixed.

It is believed that the mounting through hole 22 is sealed by the passive radiator 1, the inner side of the passive radiator 1 is located in the sound transmission channel (i.e., the inner pipe), and the outer side of the passive radiator 1 communicates with the air located in the cavity of the electronic device.

In the working process, the passive radiator 1 vibrates and sounds under the action of the active loudspeaker unit, sound waves are transmitted in the sound transmission channel and are transmitted out from the sound outlet port 21, and the passive radiator 1 achieves a low-frequency effect.

The passive radiation module 6 can fix the position of the passive radiator 1 only by using the installation through hole 22 of the tube body 2, and the tube body 2 and the passive radiator 1 are convenient and reliable to install, so that the passive radiator 1 realizes a low-frequency effect; meanwhile, the concrete size of the pipe body 2 can be reduced according to actual needs, so that the passive radiation module can be conveniently and stably installed in the electronic equipment, and the requirement for installation in a narrow and small space area is met to a certain extent.

Referring to the description of fig. 2 and 3, the tube 2 may be disposed in a flat shape, the tube 2 includes two flat surfaces 20 disposed opposite to each other, and the mounting through hole 22 is disposed on the flat surfaces 20.

Taking the orientation shown in fig. 2 and 3 of the specification as an example, the upper surface and the lower surface of the tube body 2 are two flat surfaces 20, the height of two side surfaces of the tube body 2 is low, the surface area of the flat surface 20 is far larger than that of the side surfaces, and the mounting through hole 22 is arranged on the flat surface 20 with the larger surface area.

For example, the mounting through hole 22 may be disposed on the upper surface (the flat surface 20) of the tube body 2, and the passive radiator 1 should be mounted on the upper surface of the tube body 2, so that the mounting through hole 22 is disposed by utilizing the characteristic of the large surface area of the flat surface 20, and the outer edge of the passive radiator 1 can be sufficiently contacted with the mounting through hole 22, thereby realizing the stable mounting of the passive radiator 1, and helping to ensure the stable mounting of the tube body 2 and the passive radiator 1. Meanwhile, because the thickness of the tube body 2 is thin, the height space is greatly saved, and the passive radiation module is suitable for being installed in ultrathin electronic equipment.

In order to realize the installation of the passive radiating module 6 in comparison with the electronic device, the pipe body 2 may further be provided with a support lug 23, the support lug 23 is provided with a fixing hole 231, and obviously, when the passive radiating module needs to be installed at a preset position, the pipe body 2 may be fixed at the preset position by utilizing the cooperation of fasteners such as bolts and the like and the fixing hole 231, so that the installation of the passive radiating module 6 in comparison with the electronic device is completed.

Of course, for the installation manner of the passive radiation module 6, the connection may also be implemented by clamping, gluing, or the like in the prior art, which will not be described herein again.

Aiming at the specific manufacturing mode of the pipe body 2, the pipe body can be produced and processed in an integrated injection molding mode, so that the technical effect is ensured, the production and the processing can be facilitated, and the cost is reduced; for the production and processing of the passive radiator 1, reference is made in particular to the prior art, and no improvement is made here.

Referring to the description and shown in fig. 1 to 3, the two ends of the pipe body 2 may be provided with sound outlet ports 21, that is, the two sound outlet ports 21 are respectively disposed at the two ends of the pipe body 2, the pipe body 2 is provided with a partition plate 24, so as to divide the inner pipe of the pipe body 2 into two parts and form two sound transmission channels, and each sound transmission channel includes at least one installation through hole 22.

In other words, one sound transmission channel includes one sound outlet port 21 and at least one mounting through hole 22, and the two sound transmission channels are separated from each other by the partition plate 24, do not interfere with each other, and are independent from each other.

Here, the isolation plate 24 can not only serve to isolate the two sound transmission channels, but also improve the structural strength of the tube body 2, thereby ensuring that the tube body 2 is reliable in use. Meanwhile, the partition plate 24 is used for dividing the inner pipeline of the pipe body 2 into two parts, so that the length of each sound transmission channel can be shortened, and the interference can be reduced.

Taking an example in which an acoustic channel includes an acoustic port 21 and a mounting through hole 22, one mounting through hole 22 is provided with one passive radiator 1, so that the acoustic channel takes one passive radiator 1 as an input to transmit acoustic waves from the acoustic port 21; in case that one sound transmission channel includes one sound outlet port 21 and two mounting through holes 22, two passive radiators 1 are correspondingly provided to the two mounting through holes 22, so that the sound transmission channel transmits sound waves from the sound outlet port 21 with the two passive radiators 1 as inputs.

In the case that one sound transmission channel includes one sound outlet port 21 and one mounting through hole 22, the tube 2 is provided with two mounting through holes 22 in total, and the two mounting through holes 22 can be respectively arranged on the upper and lower surfaces of the tube 2, as shown in the orientation of fig. 1 in the specification as an example.

Here, the isolation plate 24 should obviously be located between the two mounting through holes 22, that is, the isolation plate 24 is located between the two passive radiators 1, so as to form two sound transmission channels on the left and right; meanwhile, two installation through holes 22 are respectively located two upper and lower surfaces of the pipe body 2, so that mutual noninterference can be achieved when installing two passive radiators 1, installation operation is respectively performed on different sides of the pipe body 2, and the installation effect is favorably improved.

Of course, in the case where one sound transmission channel includes one sound outlet port 21 and one mounting through hole 22, two mounting through holes 22 may be provided on the same surface of the pipe body 2, and two mounting through holes 22 may be provided on the upper surface of the pipe body 2 or on the lower surface of the pipe body 2.

Similarly to the above, the partition plate 24 is located between the two mounting through holes 22, that is, the partition plate 24 is located between the two passive radiators 1, thereby forming two left and right sound transmission passages. Two installation through-holes 22 set up the same surface at body 2, also can avoid overturning body 2 in the installation, promote the installation effectiveness.

It can be seen that the two mounting through holes 22, whether located on the upper and lower surfaces of the tubular body 2 or on the same surface of the tubular body 2, have their own benefits and can therefore be set according to actual needs.

It is known that the higher the number of passive radiators 1 for the acoustic channel, the better the low frequency effect. From the above, one sound transmission channel may further include one sound outlet port 21 and two mounting through holes 22, and for this situation, similarly to the above, the two mounting through holes 22 of each sound transmission channel may be disposed on different sides of the tube body 2, or the two mounting through holes 22 may be disposed on the same side of the tube body 2; of course, one sound transmission channel may further include one sound outlet port 21 and other number of mounting through holes 22, and the specific position of the mounting through hole 22 may be determined as required, and will not be described herein again.

Division board 24 detachably connects in body 2, to some special cases, when need not to use two sound channels, can demolish division board 24 from body 2 to the application universality of passive radiation module has been promoted.

Specifically, since the isolation plate 24 is to be disposed in the internal pipeline of the pipe body 2, the sidewall of the pipe body 2 may be provided with a slot, the slot is communicated with the internal pipeline, and the isolation plate 24 extends into the slot and enters the internal pipeline, so as to divide the internal pipeline into two sound transmission channels; the partition plate 24 can also be taken out from the slot, so that the partition plate 24 can be detachably connected to the pipe body 2.

Of course, the isolation plate 24 can also be placed in the inner pipe through the sound outlet port 21, and the isolation plate 24 can also be taken out from the inner pipe through the sound outlet port 21, so that the isolation plate 24 can be detachably connected to the pipe body 2, which is not described in detail herein.

The utility model provides an electronic device with passive radiating module 6, which comprises the passive radiating module 6 described in the above embodiment; other parts of the electronic device may be referred to in the art and will not be expanded upon herein.

The electronic device may specifically be a sound generating device such as a sound box, and taking fig. 4 and fig. 5 of the specification as an example, the sound box includes a reflective cone acoustic radiation mesh enclosure 3, a driving unit 4, an upper cavity 5, a passive radiation module 6, a lower cavity 7, and a base 8, where the specific arrangement modes of the reflective cone acoustic radiation mesh enclosure 3, the driving unit 4, the upper cavity 5, and the base 8 may all refer to the prior art, and the passive radiation module 6 and the lower cavity 7 are improved parts of the text.

As mentioned above, in order to fix the position of the passive radiation module 6, the passive radiation module 6 may be fixed in the lower cavity 7, the lower cavity 7 is provided with a mounting surface, the mounting surface is provided with an assembly hole coaxial with the fixing hole 231, and the passive radiation module 6 and the lower cavity 7 are fixed by fastening members such as bolts and the like to the fixing hole 231 and the assembly hole.

Meanwhile, in order to realize sound output of the passive radiation module 6, the side wall of the lower cavity 7 is provided with a sound output window 71, the sound output window 71 is tightly attached to the sound output port 21, and sound waves transmitted from the sound output port 21 are transmitted to the outside of the sound box through the sound output window 71.

Taking the directions shown in the attached fig. 4 and 5 in the specification as examples, the sound outlet ports 21 are located at the left and right ends of the tube body 2, and the left and right end faces of the tube body 2 can be attached to the side wall of the lower cavity 7; that is, the side wall of the lower chamber 7 is arc-shaped, and the left and right end faces of the pipe body 2 may also be arc-shaped, so that the left and right end faces of the pipe body 2 and the side wall of the lower chamber 7 are attached to each other, thereby ensuring close attachment of the sound outlet window 71 and the sound outlet port 21.

Obviously, if the passive radiator 1 is required to be installed on the lower surface of the tube body 2, when the tube body 2 is installed compared with the lower cavity 7, a gap should be formed between the front end surface and the rear end surface of the tube body 2 and the lower cavity 7, that is, the tube body 2 cannot completely block the cross section where the sound outlet window 71 is located, so that sound waves can be transmitted from top to bottom to the lower part of the tube body 2, and the passive radiator 1 located on the lower surface of the tube body 2 can achieve a low-frequency effect.

It is right above that the utility model provides a passive radiation module and electronic equipment have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The passive radiation module is characterized by comprising a passive radiator (1) and a pipe body (2), wherein the end part of the pipe body (2) is provided with a sound outlet port (21), the side wall of the pipe body (2) is provided with a mounting through hole (22), a sound transmission channel is formed between the sound outlet port (21) and the mounting through hole (22), and the passive radiator (1) is mounted in the mounting through hole (22).

2. The passive radiating module of claim 1, wherein the tube (2) is flat, the tube (2) includes two flat surfaces (20) disposed opposite to each other, and the mounting through hole (22) is formed in the flat surfaces (20).

3. The passive radiating module of claim 1, characterized in that the tube body (2) is further provided with a support lug (23), and the support lug (23) is provided with a fixing hole (231).

4. The passive radiating module of claim 1, characterized in that the tube body (2) is injection molded in one piece.

5. The passive radiating module of any one of claims 1 to 4, wherein the number of the sound outlet ports (21) is two, the two sound outlet ports (21) are respectively disposed at two ends of the tube body (2), the tube body (2) is provided with a partition plate (24) to form two sound transmission channels, and each sound transmission channel includes at least one mounting through hole (22).

6. The passive radiating module of claim 5, characterized in that the tube body (2) is provided with two of the mounting through holes (22), the two mounting through holes (22) being oppositely arranged on different sides of the tube body (2).

7. The passive radiating module of claim 5, characterized in that the tube body (2) is provided with two of the mounting through holes (22), the two mounting through holes (22) being provided on the same side of the tube body (2).

8. A passive radiating module according to claim 5, characterized in that the isolating plate (24) is removably connected to the tubular body (2).

9. An electronic device comprising the passive radiating module of any of claims 1-8.

10. The electronic device according to claim 9, characterized in that the electronic device is in particular a sound box.