CN106792388B

CN106792388B - Miniature loudspeaker shell and loudspeaker monomer

Info

Publication number: CN106792388B
Application number: CN201611218553.XA
Authority: CN
Inventors: 韩志磊
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2022-10-14
Anticipated expiration: 2036-12-26
Also published as: CN106792388A

Abstract

The invention relates to a micro-speaker shell and a speaker monomer. The micro loudspeaker shell comprises a main shell and an elastic sheet, wherein the elastic sheet is provided with a root part, a bent part and a floating part, the root part is connected with the bent part, the floating part is connected with the bent part, the root part and the bent part are fixed in the main shell in an injection molding mode, the floating part extends out of the main shell, and a retaining wall is formed on one side of the bent part, which is far away from the root part, of the main shell; the elastic sheet has an initial state and an assembly state, and in the initial state, the floating part and the root part are respectively positioned at two sides of the bending part and opposite to the extension direction of the bending part; in an assembly state, the floating part is reversely bent from the position connected with the bending part, the floating part and the root part are positioned at the same side of the bending part, one end of the floating part, which is far away from the bending part, is provided with a hook, and the hook is configured to be capable of being clamped on the main shell. The technical problem to be solved by the invention is that the loudspeaker shell is deformed by the deformation acting force of the elastic sheet.

Description

Miniature loudspeaker shell and loudspeaker monomer

Technical Field

The invention belongs to the technical field of loudspeakers, and particularly relates to a miniature loudspeaker shell and a loudspeaker monomer.

Background

In current consumer electronics, speakers have become an important accessory, and are used for electro-acoustic conversion to provide sound effects. At present, a loudspeaker and a receiver monomer are mainly contacted with a client terminal welding pad through an elastic sheet to play a communication role. When the loudspeaker is assembled on the client complete machine, the elastic sheet on the loudspeaker shell is tightly pressed on the bonding pad of the client complete machine through elastic deformation, so that the electric connection between the loudspeaker and the complete machine is realized.

In the prior art, injection molding of the elastic sheet on the speaker housing is a common technical means, but the elastic sheet generates a large elastic force after being bent and fixed by the hook, as shown in fig. 1, such a force is most obvious particularly at the bending position 01 of the root of the elastic sheet. Correspondingly, the shell part 02 at the bending position of the root of the elastic sheet is influenced most by the stress of the elastic sheet, so that the risk of warping and deformation exists, and the reliability is reduced. The performance and reliability of the loudspeaker can be affected if significant deformation of the loudspeaker housing occurs.

In order to avoid deformation of the speaker housing or to reduce the risk of deformation, it is necessary to improve the structure of the speaker housing or the structure of the spring plate.

Disclosure of Invention

It is an object of the invention to reduce the risk of deformation of the loudspeaker housing under the force of the spring.

According to one aspect of the invention, a micro speaker shell is provided, which comprises a main shell and an elastic sheet, wherein the elastic sheet is provided with a root part, a bending part and a floating part, the root part is connected with the bending part, the floating part is connected with the bending part, the root part and the bending part are fixed in the main shell by injection molding, the floating part extends out of the main shell, and a wall blocking part is formed on one side of the bending part far away from the root part;

the elastic sheet has an initial state and an assembly state, and in the initial state, the floating part and the root part are respectively positioned at two sides of the bending part and opposite to the extending direction of the bending part;

in an assembly state, the floating part is reversely bent from the position connected with the bent part, the floating part and the root part are positioned at the same side of the bent part, one end of the floating part, far away from the bent part, is provided with a hook, and the hook is configured to be clamped on the main shell

Optionally, a hanging groove is formed in the main housing, and the hook is configured to be capable of being clamped in the hanging groove.

Optionally, the floating portion includes a linear initial segment, and in an initial state, an included angle between the initial segment and the bent portion is 90 °.

Optionally, in an assembled state, an angle between the initial segment and the bent portion is 90 °.

Optionally, an included angle between the root portion and the bent portion is 90 degrees.

Optionally, the main housing has a bent support portion formed above the root portion, the bent support portion being located between the floating portion and the root portion in an assembled state.

Optionally, the main casing is fixed with two spring pieces by injection molding.

The invention also provides a loudspeaker single body, which comprises the miniature loudspeaker shell and a loudspeaker assembly, wherein the loudspeaker assembly is arranged in the miniature loudspeaker shell.

One technical effect of the invention is that the structural stability of the main housing around the bending portion of the elastic piece is improved, and the risk of deformation of the main housing is reduced.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic side view of a prior art micro-speaker enclosure;

FIG. 2 is a schematic side view of a micro-speaker housing according to the present invention;

FIG. 3 is a schematic side view of a micro-speaker housing according to the present invention;

fig. 4 is a schematic perspective view of a micro-speaker housing according to the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The invention provides an improved micro loudspeaker shell, in the micro loudspeaker shell, a main shell around a bending part of an elastic sheet is strengthened, the root part and the bending part of the elastic sheet are fixed in the main shell by injection molding, the structure of the main shell is more stable, and the possibility of deformation is reduced. Fig. 2 shows the side structure of the micro-speaker housing, showing the structure and location of the spring inside the main housing 1. The miniature speaker casing includes main casing body 1 and the integrative shell fragment of fixing in main casing body 1 of moulding plastics, the shell fragment has root 21, kink 22 and unsteady portion 23, root 21 is connected with kink 22, kink 22 is connected with unsteady portion 23, the shell fragment is whole to be in the position bending of kink 22. The floating part 23 is extended out of the main shell body 1, the elastic sheet has elastic deformation capacity, the floating part 23 can float up and down under the action of external force, and the root and the bent part are fixed in the main shell body in an injection molding mode. Be formed with barricade portion 11 on the main casing body, barricade portion 11 is located keeping away from of kink 22 one side of root 21, barricade portion 11 is right kink 22 plays backstop, fixed effect, strengthens the intensity of the main casing body prevents to be close to the perk deformation takes place for the main casing body of kink 22 and root 21.

The elastic sheet has an initial state and an assembled state, the initial state indicates that the elastic sheet is not pre-bent, as shown in fig. 3, the floating portion 23 and the root portion 21 are respectively located at two sides of the bent portion 22, in the figure, the floating portion 23 is shown to be located at the left side of the bent portion 22, and the fixed portion is shown to be located at the right side of the bent portion 22. The floating portion 23 is opposite to the extending direction of the root portion 21 with respect to the bent portion 22.

The spring plate is transformed from the initial state to the assembled state through the bending operation, and the floating portion 23 is reversely bent from the position connected with the bent portion 22, as shown in fig. 2. The floating portion 23 is provided with a hook, the hook is usually located at one end of the floating portion 23 far away from the root portion 21, and the hook is used for hooking and clamping the floating portion 23 on the main casing 1 so as to limit the position of the floating portion and prevent the floating portion 23 from deviating to the direction far away from the main casing 1 in a free state. As shown in fig. 2, in the assembled state of the elastic sheet, the floating portion 23 is clamped on the main housing 1, the floating portion 23 and the root portion 21 are located on the same side of the bending portion 22, and in fig. 2, the floating portion 23 and the root portion 21 are located on the right side of the bending portion 22.

In the prior art, the shell is deformed by the stress generated by the elastic sheet, but in the present invention, the root 21 and the bent portion 22 are fixed in the main shell by injection molding, the main shell has the retaining wall portion 11, the position of the retaining wall portion 11 corresponds to the position of the bent portion 22, and the retaining wall portion 11 is attached to the bent portion 22.

The position of the wall portion 11 can be known by comparing the structure of fig. 2 with that of fig. 1, and in the prior art shown in fig. 1, the wall portion 11 is not provided on the housing. In the invention, the retaining wall part plays a role in strengthening and protecting the main shell and the elastic sheet, the retaining wall part is coated on the side surface of the bending part, and when the root of the elastic sheet and the bending part have an upward tilting movement trend, the retaining wall part limits the space around the root and the bending part, so that the root and the bending part are prevented from tilting and deforming. Further, the retaining wall portion can also reduce the occurrence of bending of the main casing portion between the root portion and the bent portion by the root portion.

Alternatively, the main housing may be provided with a hanging groove configured to catch and fix the floating portion. The external force action can make the floating part be close to the groove of hanging on the main casing body to make the couple can hang on hang the groove, hang the groove and couple cooperation restriction the position of floating part prevents the floating part is kept away from the main casing body. The main casing is provided with the hanging groove, so that the hook can be conveniently clamped on the main casing.

The floating portion 23 may include an initial section 231 extending in a straight line, as shown in fig. 2 and 3. Alternatively, when the resilient piece is in the initial state, the angle between the initial segment 231 and the bent portion 22 may be 90 °. Alternatively, when the resilient piece is in the assembled state, the angle between the initial segment 231 and the bent portion 22 may also be 90 °. In this embodiment, the floating portion 23 and the initial segment 231 in the initial state are bent by 90 ° to a side away from the root portion 21 with respect to the bent portion 22, and when the assembled state is switched, the initial segment 231 is turned and bent by 180 ° to a side close to the root portion 21 with respect to the bent portion 22, and an included angle formed by the initial segment 231 and the bent portion 22 is 90 °.

In the present invention, the final assembly state and the use state of the micro-speaker housing are close to the case shown in fig. 2, and the floating portion 23 of the spring plate is configured to abut against the pad of the external device under the action of its own elastic deformation. This functional configuration requires the spring plate to have sufficient elastic deformation force as a whole to cause the floating portion 23 to have a tendency to move away from the main housing 1. In the configuration shown in fig. 2, i.e., the floating portion 23 has an upward movement tendency, the pad of the external device can be located on the upper side of the main housing 1, and closely attached to the floating portion 23. Under the performance requirement, if the relative included angle between the bending part 22 and the floating part 23 is close to 90 degrees in a free state, when the included angle between the floating part 23 and the bending part 22 after being turned and bent is close to 90 degrees again, the whole deformation acting force of the elastic sheet is larger, and the performance requirement can be better met.

In particular, the main housing may further have a bending support portion 12, as shown in fig. 2 and 3, the bending support portion 12 is located above the root portion 21. On one hand, the bending support portion 12 is used for pressing and fixing the root portion 21, and further, the bending support portion 12 is configured to be attached to the bending portion 22, and the bending support portion 12 and the wall blocking portion 11 are respectively located at two sides of the bending portion 22, as shown in fig. 2 and 3. The bending support portion 12 and the retaining wall portion 11 are respectively attached to the bending portion 22 from two sides of the bending portion 22 to limit the positions of the bending portion and the root portion 21, so that the structural reliability of the micro-speaker shell is further improved, and the bending of the elastic sheet and the main shell by the elastic force of the elastic sheet is reduced. In the assembled state, the bent support portion is located between the floating portion 23 and the root portion 21. In the prior art as shown in fig. 1, although the root of the elastic sheet is covered with a partial structure of the main housing, the partial structure is not attached to the bent portion, and no retaining wall portion can be engaged with the bent portion. Therefore, the part of the main shell structure above the root part is most easily bent and tilted by the elastic sheet. In the invention, the root part and the bent part are integrally fixed in the main shell body in an injection molding manner, so that the retaining wall part 11 and the bent supporting part 12 can be formed, the two parts are matched to play a reinforcing role, the retaining wall part 11 and the bent supporting part 12 can be coated on the root part and the bent part, and the risk of deformation of the elastic sheet and the main shell body is reduced.

Optionally, an included angle between the root portion 21 and the bent portion 22 may be 90 degrees, and the bending of the whole elastic piece is implemented by two positions, namely, a connection position between the root portion 21 and the bent portion 22 and a connection position between the bent portion 22 and the floating portion 23. The included angle between the root 21 and the bending part 22 is a right angle, which is beneficial to improving the stability of the elastic sheet fixed in the main casing 1, and the main casing 1 can provide mutually orthogonal fixing acting force for the root and the bending part. The part of the main shell body covering the upper side of the root can prevent the root from tilting, and the part of the main shell body on two sides of the bending part can limit shaking possibly generated by the bending part.

Optionally, the micro-speaker housing may include two elastic pieces, and the two elastic pieces are respectively disposed on two sides of the main housing 1, as shown in fig. 4. The two elastic pieces are fixed in the main shell body 1 in an integrated injection molding mode.

Furthermore, the invention also provides a loudspeaker single body, which comprises the miniature loudspeaker shell and a loudspeaker assembly, wherein the miniature loudspeaker shell is provided with an accommodating space, and the loudspeaker assembly is arranged in the accommodating space. The loudspeaker assembly may comprise a vibration assembly and a magnetic circuit system, and the voice coil of the vibration assembly may be electrically connected to the root of the spring plate by welding or the like. Therefore, when the loudspeaker monomer is arranged on the whole product, the floating part is electrically connected with a bonding pad of the whole product, and the voice coil is conducted with the whole product.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a micro loudspeaker shell, its characterized in that, includes main casing body (1) and shell fragment, the shell fragment has root (21), kink (22) and the portion of floating (23), root (21) with kink (22) are connected, the portion of floating (23) with kink (22) are connected, root (21) and kink (22) are moulded plastics and are fixed in main casing body (1), the portion of floating (23) stretches out from main casing body (1), in one side of kink (22) keeping away from root (21), main casing body is formed with barricade portion (11), barricade portion (11) laminating is on kink (22);

the elastic sheet has an initial state and an assembly state, and in the initial state, the floating part (23) and the root part (21) are respectively positioned at two sides of the bending part (22) and opposite to the extension direction of the bending part (22);

in an assembly state, the floating part (23) is reversely bent from a position connected with the bent part (22), the floating part (23) and the root part (21) are positioned on the same side of the bent part (22), and one end of the floating part (23) far away from the bent part (22) is provided with a hook which is configured to be clamped on the main shell (1);

the floating part (23) comprises a linear initial section (231), and in an initial state, the included angle between the initial section (231) and the bent part is 90 degrees; in the assembled state, the angle between the initial section (231) and the bent section (22) is 90 °.

2. The micro-speaker housing as claimed in claim 1, wherein the main housing (1) is provided with a hanging slot, and the hook is configured to be snapped on the hanging slot.

3. The microspeaker housing according to claim 1, wherein the root portion (21) and the bent portion (22) form an angle of 90 degrees.

4. A microspeaker housing as claimed in claim 1 wherein the main housing is formed with a bent support portion above the root portion, the bent support portion (12) being located between the floating portion (23) and the root portion (21) in the assembled state.

5. The micro speaker housing as claimed in claim 1, wherein the main housing (1) is fixed with two spring pieces by injection molding.

6. A speaker cell comprising the micro-speaker enclosure of any of claims 1-5 and a speaker assembly, the speaker assembly being disposed in the micro-speaker enclosure.