CN216960187U

CN216960187U - Piezoelectric ceramic sounding module and sounder

Info

Publication number: CN216960187U
Application number: CN202220176591.8U
Authority: CN
Inventors: 陈思源
Original assignee: Chengdu Falante Technology Co ltd
Current assignee: Chengdu Falante Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-12
Anticipated expiration: 2032-01-21

Abstract

The utility model belongs to the technical field of piezoelectric ceramics, and particularly relates to a piezoelectric ceramic sounding module and a sounder, which comprise a shell and a piezoelectric ceramic unit; the surface or the inside of the shell is provided with a piezoelectric ceramic mounting part, the piezoelectric ceramic mounting part is provided with a first mounting part and a second mounting part which are oppositely arranged, the first mounting part is higher than or equal to the second mounting part, the first mounting part and the second mounting part are both connected with the piezoelectric ceramic unit so that the piezoelectric ceramic unit is obliquely arranged or horizontally arranged, and a space avoiding area is formed between the first mounting part and the second mounting part; the layout mode that piezoceramics unit slope set up makes piezoceramics unit's vibration frequency controllable, increases vibration efficiency, promotes piezoceramics unit's well low frequency, reduces whole consumption, promotes volume and tone quality effect simultaneously.

Description

Piezoelectric ceramic sounding module and sounder

Technical Field

The utility model belongs to the technical field of piezoelectric ceramics, and particularly relates to a piezoelectric ceramic sounding module and a sounder.

Background

The existing buzzer made of a piezoelectric ceramic unit and simple ring equipment are fewer in the market, and equipment for full-frequency sound production and sounding application of the piezoelectric ceramic unit is fewer; the piezoelectric ceramic unit at present adopts cantilever mounting mode direct mount in the product shell or in the loudspeaker shell, also has directly attached piezoelectric ceramic unit on the product sound production face, but this type of manufacturing installation method is fairly simple, and tone quality is poor, and the vibration sense is strong, uses and experiences uncomfortable, and the distortion is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a piezoelectric ceramic sounding module, and aims to solve the technical problem that the piezoelectric ceramic sounding module in the prior art is poor in tone quality effect.

In order to achieve the above object, an embodiment of the present invention provides a piezoelectric ceramic sound module, which includes a housing and a piezoelectric ceramic unit; the surface of casing or inside are equipped with the piezoceramics installation department, the piezoceramics installation department has relative first installation department and the second installation department that sets up, first installation department is higher than the second installation department, first installation department with the second installation department all with piezoceramics unit connects so that the slope of piezoceramics unit sets up, first installation department with form between the second installation department and keep away the dead zone.

Optionally, the void avoiding area is a sealed cavity or a non-sealed cavity, and a structural member or a filling member for adjusting the vibration frequency is filled in the void avoiding area.

Optionally, the piezoelectric ceramic mounting part is provided with a three-dimensional structure or a vibration transmission surface for adjusting the vibration frequency of the piezoelectric ceramic unit.

Optionally, the three-dimensional structure includes a plurality of vibration surfaces for increasing a vibration area, and the vibration surfaces are spaced apart from each other.

Optionally, the casing, piezoceramics unit installation component perhaps be equipped with the atress portion on the piezoceramics unit, a support piece one end with the atress portion butt is in order to be used for adjusting piezoceramics sound production module's vibration frequency.

Optionally, a plurality of stress parts are arranged, and each stress part is a stress point, a stress line or a stress surface; the supporting piece is provided with a plurality of supporting pieces, and each supporting piece corresponds to each stressed part.

Optionally, the piezoceramic sound generation module further comprises a counterweight; the weight piece with the casing, piezoceramics unit or piezoceramics installation department is connected.

Optionally, the housing comprises a first housing and a second housing; the first installation part is arranged on the first shell, and the second installation part is arranged on the second shell.

One or more technical schemes in the piezoelectric ceramic sounding module provided by the embodiment of the utility model at least have one of the following technical effects: the layout mode that piezoceramics unit slope set up makes piezoceramics unit's vibration frequency controllable, increases vibration efficiency, promotes piezoceramics unit's well low frequency, reduces whole consumption, promotes volume and tone quality effect simultaneously.

The embodiment of the utility model also provides a piezoelectric ceramic sounding module, which comprises a shell and a piezoelectric ceramic unit; the surface of casing or inside are equipped with the piezoceramics installation department, the piezoceramics installation department has relative first installation department and the second installation department that sets up, first installation department height with the height of second installation department is the same, first installation department with the second installation department all with piezoceramics unit connects so that piezoceramics unit parallel arrangement, first installation department with form between the second installation department and keep away the dead zone.

One or more technical schemes in the piezoelectric ceramic sounding module provided by the embodiment of the utility model at least have one of the following technical effects: first installation department and second installation department are connected with piezoelectric ceramic unit's both ends respectively for support piezoelectric ceramic unit, piezoelectric ceramic unit parallel arrangement's overall arrangement mode reduces piezoelectric ceramic unit's interference, adjusts piezoelectric ceramic unit's vibration frequency, increases vibration efficiency, promotes piezoelectric ceramic unit's well low frequency, reduces whole consumption, promotes volume and tone quality effect simultaneously.

The embodiment of the utility model also provides a sounder which comprises the piezoelectric ceramic sounding module.

One or more technical schemes in the piezoelectric ceramic sounding module provided by the embodiment of the utility model at least have one of the following technical effects: set up piezoceramics sound production module, through the vibration frequency who adjusts piezoceramics unit, increase the vibration efficiency of vocal ware, promote the well low frequency of vocal ware, reduce whole consumption, promote volume and tone quality effect simultaneously.

Drawings

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

Fig. 1 is a sectional view of a piezoelectric ceramic sound module according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a piezoelectric ceramic sound generating module according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a piezoelectric ceramic sound generating module according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-housing 11-piezoelectric ceramic mounting part 12-first mounting part

13-second installation part 14-clearance area 15-three-dimensional structure

20-piezoelectric ceramic unit 30-counterweight.

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 or similar 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 fig. 1-3 are exemplary and intended to be illustrative of the embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention may be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1 to 3, a piezoelectric ceramic sound generating module is provided, which includes a housing 10 and a piezoelectric ceramic unit 20; the surface of casing 10 or inside are equipped with piezoceramics installation department 11, piezoceramics installation department 11 has relative first installation department 12 and the second installation department 13 that sets up, first installation department 12 is higher than second installation department 13, first installation department 12 with second installation department 13 all with piezoceramics unit 20 connects so that piezoceramics unit 20 slope sets up, first installation department 12 with it keeps away the district 14 to form between the second installation department 13.

In the embodiment of the present invention, the first mounting portion 12 and the second mounting portion 13 are respectively connected to two ends of the piezoelectric ceramic unit 20, and are used for supporting the piezoelectric ceramic unit 20, and the arrangement manner of the piezoelectric ceramic unit 20 in an inclined manner adjusts the vibration frequency of the piezoelectric ceramic unit 20 by adjusting the inclination angle of the piezoelectric ceramic unit 20, so as to increase the vibration efficiency, improve the medium and low frequencies of the piezoelectric ceramic unit 20, reduce the overall power consumption, and improve the volume and tone quality effects.

Specifically, the first mounting portion 12 and the second mounting portion 13 are provided with positions for connecting with the periphery of the piezoelectric ceramic unit 20 or connecting with two ends of the piezoelectric ceramic unit 20, and mounting manners such as groove fixing, glue fixing, double-sided adhesive foam fixing or bracket fixing can be adopted; the shape of the piezoelectric ceramic unit 20 is not limited, and may be circular or square, or may be other shapes.

In another embodiment of the present invention, the keep-out area 14 of the piezoelectric ceramic sound module is a sealed cavity or a non-sealed cavity, and a structural member or a filling member for adjusting the vibration frequency is filled in the keep-out area 14; the piezoelectric ceramic unit 20 drives the piezoelectric ceramic mounting part 11 to vibrate in the vibration process, so as to drive the structural part or the filling part to vibrate, and the vibration effect is improved by increasing the vibration, so that the medium-low frequency tone quality is improved; meanwhile, the structural member or the filling member may abut against the side surface of the piezoelectric ceramic unit 20, and the vibration frequency of the piezoelectric ceramic unit 20 is adjusted by a direct contact manner.

In another embodiment of the present invention, as shown in fig. 2, the piezoceramic mounting part 11 of the piezoceramic sound generating module is provided with a three-dimensional structure 15 or a vibration transmission surface for adjusting the vibration frequency of the piezoceramic unit 20; the three-dimensional structure 15 comprises a plurality of vibration surfaces for increasing the vibration area, and the vibration surfaces are arranged at intervals; under the same length and width dimensions, the vibration area is increased, so that the resonance performance of the piezoelectric ceramic sounding module achieves a better effect, the tone quality is better, and the volume is larger; the piezoelectric ceramic unit 20 transmits the vibration to the vibration transmission surface, and the vibration transmission surface resonates with the piezoelectric ceramic unit 20, thereby increasing the sound volume.

In another embodiment of the present invention, a stressed portion is disposed on the casing 10, the mounting component of the piezoelectric ceramic unit 20, or the piezoelectric ceramic unit 20 of the piezoelectric ceramic sound generating module, and one end of a supporting member abuts against the stressed portion to adjust the vibration frequency of the piezoelectric ceramic sound generating module; the vibration frequency of the piezoelectric ceramic unit 20 is adjusted, the efficiency is increased, and the tone quality is adjusted; specifically, the supporting member can be a hard compression column, a soft compression block or an elastic member.

In another embodiment of the present invention, a plurality of force-bearing portions of the piezoceramic sound-generating module are provided, and the force-bearing portions are force-bearing points, force-bearing lines or force-bearing surfaces; the supporting pieces are arranged in a plurality, and each supporting piece corresponds to each stressed part; support pieces with different quantities are arranged, vibration of the piezoelectric ceramic unit 20, the piezoelectric ceramic mounting part 11 or the shell 10 is restrained, and the range of different vibration frequencies is adjusted according to requirements, so that the application range is wide.

Specifically, the piezoelectric ceramic sounding module also comprises a vibrating piece; the vibrating piece is attached to the piezoelectric ceramic mounting part 11 or the piezoelectric ceramic unit 20; the vibrating piece is made of one material or a plurality of different materials, when the piezoelectric ceramic unit 20 works, vibration is transmitted to the vibrating piece on the back of the piezoelectric ceramic unit 20, the vibrating piece generates resonance, the vibration amplitude and the vibration area of the piezoelectric ceramic unit 20 can be increased, the volume and the tone quality performance are improved, and the resonance generated by the vibrating pieces made of different materials and structures can play a role in tuning; two-sided gum part of PVC can be chooseed for use to the vibrating piece, metal vibrating board or metal dice gravity piece, wherein the two-sided gum part of PVC is provided with the centre bore, the two-sided gum part of PVC one side is attached in piezoceramics unit 20's surface, the centre bore that the two-sided gum part of PVC set up has formed a seal chamber with piezoceramics unit 20, promote tone quality, can set up the gravity piece of one or a plurality of metal dice on the surface of vibrating piece, control vibration board vibration frequency, promote vibration efficiency.

Specifically, because piezoceramics unit 20's vibration frequency is too high, sound is dazzling, the low frequency difference, at attached one or polylith flexible piece in its back, for example double faced adhesive tape, PVC membrane or FPC etc. can reduce piezoceramics unit 20's hyperfrequency, lets piezoceramics unit 20 vibration frequency obtain adjusting to promote the tone quality performance, strengthen the vibration face in order to improve vibration effect, promote tone quality.

Specifically, set up a cylinder or bar support on piezoelectric ceramic unit 20's surface, be equipped with a metal vibration board on the bar support, the weight of metal vibration board and bar support acts on piezoelectric ceramic unit 20's surface, let piezoelectric ceramic unit 20's vibration frequency obtain adjusting, because metal vibration board and piezoelectric ceramic unit 20 produce resonance through the bar support, vibration area and vibration amplitude have been promoted, unsettled bar support can not produce too much interference to piezoelectric ceramic unit 20's vibration, tone quality has been guaranteed, the power of metal vibration board is used in piezoelectric ceramic unit 20's surface, adjustable piezoelectric ceramic vibration frequency and efficiency.

In another embodiment of the present invention, the piezoceramic sound generating module further comprises a weight member 30; the weight 30 is connected to the housing 10, the piezoelectric ceramic unit 20, or the piezoelectric ceramic mounting portion 11; a weight member 30 (gravity structure or metal block) is designed at the position of the piezoelectric ceramic unit 20, and the gravity formed by the weight member 30 can form a downward force on the surface of the piezoelectric ceramic unit 20, so that the vibration efficiency of the piezoelectric ceramic unit 20 can be increased, and the tone quality can be adjusted; the weight 30 can be made of one or more materials, and has different shapes and structures according to product design, so that the effect of generating pressure by gravity can be achieved, resonance can be generated between the weight 30 and the piezoelectric ceramic unit 20, the vibration efficiency is improved, and the tone quality is adjusted.

Specifically, the weight 30 is designed as a metal cylinder adhered to the back surface of the piezoelectric ceramic unit 20 or the surface of the vibrating member of the piezoelectric ceramic unit 20, and due to the weight of the metal cylinder, a contact force generated by gravity is formed on the surface of the piezoelectric ceramic unit, so that the vibration frequency of the piezoelectric ceramic unit 20 is suppressed, the middle and low frequencies are more prominent, and the sound quality is improved.

Specifically, the vibration transmission surface of the piezoelectric ceramic sounding module can be made of materials such as sponge or plastic.

Specifically, the vibration transmission surface of the piezoelectric ceramic sounding module is provided with a vibration structure, such as a 3D three-dimensional resonance structure, a vibration plate with holes, a vibration body with a plurality of vibration plate surfaces, or a vibration body with other shapes.

Specifically, a vibration cavity is arranged on the vibration transmission surface, and the piezoelectric ceramic unit 20 is arranged in the vibration cavity; the groove matched with the piezoelectric ceramic unit 20 is formed in the vibration transmission surface, the step is arranged in the groove, the piezoelectric ceramic unit 20 is placed in the groove, the piezoelectric ceramic unit 20 is abutted against the step, and a sealing cavity is formed between the middle of the piezoelectric ceramic unit 20 and the vibration transmission surface.

Specifically, a vibration mounting structure is arranged on the vibration transmission surface, and the piezoelectric ceramic unit 20 is arranged on the vibration mounting structure; the vibration mounting structure can be selected from objects such as a vibration plate, a sound transmission surface, a 3D structure vibration structure body or a flexible vibration membrane without limitation on materials and structures.

Specifically, this piezoceramics sound production module's piezoceramics unit 20 is equipped with the clearance space between being close to one side of piezoceramics installation department 11 and piezoceramics installation department 11, is equipped with the packing in the clearance space in order to be used for increasing piezoceramics's vibration efficiency, adjusts tone quality.

Specifically, the piezoelectric ceramic unit 20 may be directly disposed on the vibration transmission surface or the vibrating member, and a sealed cavity structure or a non-sealed structure is disposed at a joint of the piezoelectric ceramic unit 20 and the vibrating member or the vibration transmission surface, and the mounting part may be made of glue, foam, plastic, hardware, or the like and attached to the vibration transmission surface or the surface of the vibrating body; the gasket can be attached in a cantilever mode, a small sealing cavity is formed by hollowing the center of the gasket or other shapes are arranged to be attached to the vibration transmission surface or the surface of the vibration piece.

In another embodiment of the present invention, the housing 10 of the piezoceramic sound generating module comprises a first housing and a second housing; the first mounting part 12 is arranged on the first shell, and the second mounting part 13 is arranged on the second shell; the piezoelectric ceramic unit 20 is mounted to a different structure by a separate mounting method.

The embodiment of the utility model also provides a piezoelectric ceramic sounding module, which comprises a shell 10 and a piezoelectric ceramic unit 20; the surface or the inside of the shell 10 is provided with a piezoelectric ceramic mounting part 11, the piezoelectric ceramic mounting part 11 is provided with a first mounting part 12 and a second mounting part 13 which are oppositely arranged, the height of the first mounting part 12 is the same as that of the second mounting part 13, the first mounting part 12 and the second mounting part 13 are both connected with the piezoelectric ceramic unit 20 so as to enable the piezoelectric ceramic unit 20 to be arranged in parallel, and a space avoiding area 14 is formed between the first mounting part 12 and the second mounting part 13; first installation department 12 and second installation department 13 are connected with the both ends of piezoceramics unit 20 respectively for support piezoceramics unit 20, piezoceramics unit 20 parallel arrangement mode of setting reduces piezoceramics unit 20's interference, adjusts piezoceramics unit 20's vibration frequency, increases vibration efficiency, promotes piezoceramics unit 20's well low frequency, reduces whole consumption, promotes volume and tone quality effect simultaneously.

The embodiment of the utility model also provides a sounder which can be a product of a piezoelectric ceramic external sounding unit, a piezoelectric ceramic bone conduction unit, a piezoelectric ceramic microphone or a piezoelectric ceramic sensor; set up piezoceramics sound production module, through the vibration frequency who adjusts piezoceramics unit 20, increase the vibration efficiency of sounder, promote the well low frequency of sounder, reduce whole consumption, promote volume and tone quality effect simultaneously.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A piezoelectric ceramic sounding module comprises a shell and a piezoelectric ceramic unit; the method is characterized in that: the surface of casing or inside are equipped with the piezoceramics installation department, the piezoceramics installation department has relative first installation department and the second installation department that sets up, first installation department is higher than the second installation department, first installation department with the second installation department all with piezoceramics unit connects so that the slope of piezoceramics unit sets up, first installation department with form between the second installation department and keep away the dead zone.

2. The piezoceramic sound generation module of claim 1, wherein: the space avoiding area is a sealed cavity or a non-sealed cavity, and a structural member or a filling member for adjusting the vibration frequency is filled in the space avoiding area.

3. The piezoceramic sound generating module according to claim 1, wherein: the piezoelectric ceramic mounting part is provided with a three-dimensional structure or a vibration transmission surface for adjusting the vibration frequency of the piezoelectric ceramic unit.

4. The piezoceramic sound generation module of claim 3, wherein: the three-dimensional structure comprises a plurality of vibration surfaces for increasing the vibration area, and the vibration surfaces are arranged at intervals.

5. The piezoceramic sound generating module according to claim 1, wherein: the casing, piezoceramics unit installation component perhaps be equipped with the atress portion on the piezoceramics unit, a support piece one end with the frequency of vibration of atress portion butt in order to be used for adjusting piezoceramics sound production module.

6. The piezoceramic sound generation module of claim 5, wherein: the stress parts are arranged in plurality and are stress points, stress lines or stress surfaces; the supporting piece is provided with a plurality of supporting pieces, and each supporting piece corresponds to each stressed part.

7. A piezoceramic sound generating module according to any one of claims 1-6, characterized in that: the piezoelectric ceramic sounding module also comprises a counterweight; the weight piece with the casing, piezoceramics unit or piezoceramics installation department is connected.

8. A piezoceramic sound generating module according to any one of claims 1-6, characterized in that: the shell comprises a first shell and a second shell; the first installation part is arranged on the first shell, and the second installation part is arranged on the second shell.

9. A piezoelectric ceramic sounding module comprises a shell and a piezoelectric ceramic unit; the method is characterized in that: the surface of casing or inside are equipped with the piezoceramics installation department, the piezoceramics installation department has relative first installation department and the second installation department that sets up, first installation department height with the height of second installation department is the same, first installation department with the second installation department all with piezoceramics unit connects so that piezoceramics unit parallel arrangement, first installation department with form between the second installation department and keep away the dead zone.

10. A sounder, comprising: a piezoceramic sound generating module comprising a piezoceramic sound generating module according to any one of claims 1 to 9.