Linear vibrator

Abstract

The utility model belongs to the technical field of vibrators, and particularly relates to a linear vibrator, which comprises a mounting plate, the vibration part comprises a pair of piezoelectric vibrators, and the piezoelectric vibrators are arranged at the bottom of the mounting plate; the vibration reduction part comprises a vibration reduction block, first vibration reduction elastic pieces are arranged at the two ends of the vibration reduction block correspondingly, and the ends of the first vibration reduction elastic pieces are connected to the two ends of the mounting plate correspondingly; the bottom plate is arranged below the vibration reduction block, second vibration reduction elastic pieces are arranged at the two ends of the bottom plate correspondingly, the ends of the second vibration reduction elastic pieces are connected to the two ends of the vibration reduction block correspondingly, and the hardness of the first vibration reduction elastic pieces is larger than that of the second vibration reduction elastic pieces; the vibration part is arranged at the bottom of the mounting plate, vibration is directly transmitted to the mounting plate and prevented from being directly transmitted to the bottom plate, the mounting plate conducts primary vibration reduction through the first vibration reduction elastic pieces and the vibration reduction blocks, secondary vibration reduction is conducted between the vibration reduction blocks and the bottom plate through the second vibration reduction elastic pieces, vibration absorption is facilitated, and the bottom plate is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibrators, and in particular relates to a linear vibrator. Background Art

[0002] Common linear feeders are generally composed of a linear track, an electromagnet and a spring sheet. The electromagnet is vibrated by connecting it to a 220V AC power supply. The electromagnet drives the linear track to move through the vibration of the spring sheet, thereby achieving the purpose of linear feeding.

[0003] A Chinese utility model patent with application number CN202321976587.0 discloses a direct vibration feeding device, which ensures uniform force on the linear track and improves the conveying efficiency by controlling the direction of the vibration force applied to the linear track; however, since the piezoelectric vibrator is directly connected to the first spring piece and the second spring piece, excessive vibration will be transmitted to the base body, causing the base plate to absorb excessive vibration and reduce the conveying efficiency of the linear track.

[0004] Therefore, how to prevent the vibration of the piezoelectric vibrator from being transmitted to the ineffective area is a technical problem that needs to be solved urgently in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Utility Model Content

[0006] The embodiments of the present disclosure at least provide a linear vibrator.

[0007] In a first aspect, an embodiment of the present disclosure provides a linear vibrator, comprising: a mounting plate; a vibration portion, comprising a pair of piezoelectric vibrators, wherein the piezoelectric vibrators are arranged at the bottom of the mounting plate; a vibration damping portion, comprising a vibration damping block, wherein both ends of the vibration damping block are respectively provided with a first vibration damping spring, and the ends of the first vibration damping spring are respectively connected to the two ends of the mounting plate; a bottom plate, which is arranged below the vibration damping block, wherein both ends of the bottom plate are respectively provided with a second vibration damping spring, and the ends of the second vibration damping spring are respectively connected to the two ends of the vibration damping block, and the hardness of the first vibration damping spring is greater than the hardness of the second vibration damping spring.

[0008] In an optional embodiment, the side walls of the mounting plate, the vibration-damping block and the bottom plate are respectively arranged in the same plane, so that the first vibration-damping spring and the second vibration-damping spring are located in the same plane.

[0009] In an optional embodiment, the first vibration-damping spring and the second vibration-damping spring have the same width.

[0010] In an optional embodiment, the first vibration-damping spring comprises a plurality of spring bodies stacked together, and spacers are provided between the spring bodies so that a vibration gap is provided between the spring bodies.

[0011] In an optional embodiment, a through hole is provided on the side wall of the second vibration-damping elastic sheet to reduce its hardness.

[0012] In an optional embodiment, a connecting block is provided on a side wall of the piezoelectric vibrator, and the connecting block is connected to the mounting plate via bolts.

[0013] In an optional embodiment, amplifying springs are provided on the side walls of the piezoelectric vibrator, and counterweight plates are provided between the amplifying springs.

[0014] In an optional embodiment, a counterweight block is provided at the bottom of the counterweight plate.

[0015] In an optional embodiment, the mounting plate is made of aluminum, and the vibration damping block is made of steel.

[0016] The beneficial effect of the present utility model is that the linear vibrator transmits the vibration directly to the mounting plate by arranging the vibration part at the bottom of the mounting plate, thereby avoiding transmitting the vibration directly to the base plate. At the same time, the mounting plate performs primary vibration reduction through the first vibration reduction spring and the vibration reduction block, and secondary vibration reduction is performed between the vibration reduction block and the base plate through the second vibration reduction spring. In addition, the hardness of the first vibration reduction spring is relatively large, and the first vibration reduction spring can assist in amplifying the vibration and retransmitting it to the mounting plate. The hardness of the second vibration reduction spring is relatively low, which is convenient for absorbing vibration and protecting the base plate.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1A three-dimensional diagram of a linear vibrator provided in an embodiment of the present disclosure;

[0021] Figure 2 A schematic structural diagram of a mounting plate and a vibration part provided in an embodiment of the present disclosure;

[0022] Figure 3 A schematic structural diagram of a vibration damping portion and a base plate provided in an embodiment of the present disclosure.

[0023] In the picture:

[0024] 1. Mounting plate;

[0025] 2. Vibration unit; 21. Piezoelectric vibrator; 21a. Connecting block; 21b. Amplifying spring; 21c. Counterweight plate; 21d. Counterweight block;

[0026] 3. Vibration damping unit; 31. Vibration damping block; 32. First vibration damping spring; 32a. Spring body; 32b. Spacer; 32c. Vibration gap;

[0027] 4. Bottom plate; 41. Second vibration-damping spring; 41a. Through-hole. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0030] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0031] As used herein, the phrases "in one embodiment", "according to one embodiment", "in some embodiments", and the like are generally intended to refer to the fact that a described feature, structure, or characteristic can be included in at least one embodiment of the disclosure. Thus, such phrases in various places of the specification are not necessarily referring to the same embodiment. As used herein, the terms "example", "exemplary", and the like are used as example, instance, or illustration. Any implementation, aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects or designs. Rather, the use of the terms "example", "exemplary", and the like are intended to present concepts in a particular way.

[0032] It is found through research that the vibration of the piezoelectric vibrator in the prior art is directly transmitted to the base body through the elastic sheet, resulting in reduced conveying efficiency, which is a problem to be solved and the purpose of the utility model.

[0033] Based on the above research, the utility model provides a linear vibrator, the vibration part is installed at the bottom of the mounting plate, the vibration is directly transmitted to the mounting plate, and the vibration is not excessively transmitted to the bottom plate by cooperating with the damping part.

[0034] The defects of the above scheme are the results of the utility model person after practice and careful research, therefore, the discovery process of the above problems and the solutions of the disclosure to the above problems in this paper should be the contribution of the utility model person to the disclosure in the process of the disclosure.

[0035] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Some embodiments of the utility model will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0037] Referring to Figures 1 to 3, shows a linear vibrator, comprising: a mounting plate 1; a vibrating portion 2, which includes a pair of piezoelectric vibrators 21, the piezoelectric vibrators 21 being arranged at the bottom of the mounting plate 1; a vibration damping portion 3, which includes a vibration damping block 31, both ends of which are respectively provided with a first vibration damping spring 32, the ends of which are respectively connected to the two ends of the mounting plate 1; a bottom plate 4, which is arranged below the vibration damping block 31, both ends of which are respectively provided with a second vibration damping spring 41, the ends of which are respectively connected to the two ends of the vibration damping block 31, and the hardness of the first vibration damping spring 32 is greater than The hardness of the second vibration-damping spring 41; in short, the vibrating part 2 is set at the bottom of the mounting plate 1, and the vibration is directly transmitted to the mounting plate 1, avoiding the vibration being directly transmitted to the base plate 4. At the same time, the mounting plate 1 performs a first vibration reduction through the first vibration-damping spring 32 and the vibration-damping block 31, and a second vibration reduction is performed between the vibration-damping block 31 and the base plate 4 through the second vibration-damping spring 41, and the hardness of the first vibration-damping spring 32 is relatively large, and the first vibration-damping spring 32 can assist in amplifying the vibration and retransmitting it to the mounting plate 1. The hardness of the second vibration-damping spring 41 is relatively low, which is convenient for absorbing vibration and protecting the base plate 4; the feeding track can be set up on the mounting plate 1 to complete the material transportation.

[0038] In some embodiments, the side walls of the mounting plate 1, the vibration-damping block 31 and the bottom plate 4 are respectively arranged in the same plane so that the first vibration-damping spring 32 and the second vibration-damping spring 41 are located in the same plane; in short, the first vibration-damping spring 32 and the second vibration-damping spring 41 are arranged in the same plane, which can make the vibrations received by the first vibration-damping spring 32 and the second vibration-damping spring 41 have the same frequency, thereby improving the effect of amplifying vibration and reducing vibration.

[0039] In some embodiments, the widths of the first vibration-damping spring 32 and the second vibration-damping spring 41 are equal; in short, this design further ensures that the first vibration-damping spring 32 and the second vibration-damping spring 41 vibrate at the same frequency.

[0040] In some embodiments, the first vibration-damping spring 32 includes a plurality of superimposed spring bodies 32a, and spacers 32b are provided between the spring bodies 32a, so that vibration gaps 32c are provided between the spring bodies 32a; in short, the vibration gaps 32c are provided between the spring bodies 32a, which can improve the effect of amplifying vibration.

[0041] In some embodiments, a through hole 41 a is provided on the side wall of the second vibration-damping spring 41 to reduce its hardness. In short, the hardness of the second vibration-damping spring 41 is further reduced, making it more susceptible to deformation and facilitating vibration absorption.

[0042] In some embodiments, the side wall of the piezoelectric vibrator 21 is provided with a connecting block 21a connected with the mounting plate 1 through bolts; in short, the piezoelectric vibrator 21 is connected with the mounting plate 1 through the connecting block 21a.

[0043] In some embodiments, the side wall of the piezoelectric vibrator 21 is provided with enlarged elastic pieces 21b, and a counterweight plate 21c is arranged between the enlarged elastic pieces 21b; in short, the enlarged elastic pieces 21b and the counterweight plate 21c can amplify the vibration generated by the piezoelectric vibrator 21.

[0044] In some embodiments, the bottom of the counterweight plate 21c is provided with a counterweight block 21d; in short, the amplification effect of the enlarged elastic piece 21b can be improved by arranging the counterweight block 21d.

[0045] In some embodiments, the mounting plate 1 is made of aluminum material, and the damping block 31 is made of steel material; in short, the mounting plate 1 has a small mass, and can improve the vibration amplification effect in cooperation with the enlarged elastic piece 21b and the first damping elastic piece 32; the damping block 31 has a large mass, and can well absorb vibration in cooperation with the second damping piece with small hardness, so as to avoid transmitting the vibration to the base.

[0046] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, terms such as "first", "second" and other numerical terms are used in this paper, unless otherwise indicated in this paper. Therefore, the above discussed first element, component, area, layer or section can be referred to as the second element, component, area, layer or section without departing from the teaching of the example embodiments.

[0048] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0049] In the above discussion, unless otherwise indicated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0050] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A linear vibrator, characterized in that: include: Mounting plate (1); A vibration portion (2), comprising a pair of piezoelectric vibrators (21), wherein the piezoelectric vibrators (21) are arranged at the bottom of the mounting plate (1); A vibration damping portion (3) comprising a vibration damping block (31), wherein both ends of the vibration damping block (31) are respectively provided with first vibration damping springs (32), and ends of the first vibration damping springs (32) are respectively connected to both ends of the mounting plate (1); A bottom plate (4) is arranged below the vibration damping block (31), and second vibration damping springs (41) are respectively arranged at both ends of the bottom plate (4), and the ends of the second vibration damping springs (41) are respectively connected to the two ends of the vibration damping block (31), and The hardness of the first vibration-damping spring (32) is greater than the hardness of the second vibration-damping spring (41).

2. The linear vibrator according to claim 1, wherein The side walls of the mounting plate (1), the vibration-damping block (31), and the bottom plate (4) are respectively arranged in the same plane, so that the first vibration-damping spring (32) and the second vibration-damping spring (41) are located in the same plane.

3. The linear vibrator according to claim 2, wherein: The first vibration-damping spring (32) and the second vibration-damping spring (41) have the same width.

4. The linear vibrator according to claim 3, wherein: The first vibration-damping spring (32) comprises a plurality of spring bodies (32a) stacked together, and spacers are provided between the spring bodies (32a) so that vibration gaps (32c) are provided between the spring bodies (32a).

5. The linear vibrator according to claim 4, wherein: A through opening (41a) is provided on the side wall of the second vibration-damping elastic sheet (41) to reduce its hardness.

6. The linear vibrator according to claim 1, wherein: A connecting block (21a) is provided on the side wall of the piezoelectric vibrator (21), and the connecting block (21a) is connected to the mounting plate (1) via bolts.

7. The linear vibrator according to claim 1, wherein Amplifying springs (21b) are provided on the side walls of the piezoelectric vibrator (21), and counterweight plates (21c) are provided between the amplifying springs (21b).

8. The linear vibrator according to claim 7, wherein: A counterweight block (21d) is provided at the bottom of the counterweight plate (21c).

9. The linear vibrator according to claim 1, wherein: The mounting plate (1) is made of aluminum, and the vibration damping block (31) is made of steel.

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