CN216484274U

CN216484274U - Support structure and elastic element detector

Info

Publication number: CN216484274U
Application number: CN202121773343.3U
Authority: CN
Inventors: 谢守华; 欧建忠; 陈进
Original assignee: Guoguang Electric Co Ltd
Current assignee: Guoguang Electric Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-05-10
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a support structure and an elastic element detector, wherein a stand column of the support structure is circumferentially arranged along the axis of a fixing ring, and two ends of the stand column are respectively connected with the fixing ring and a base; first screw holes are arranged on the fixing ring at intervals, and a clamping device for clamping the elastic element to be detected is fixed on one side, far away from the upright post, of the fixing ring through the first screw holes; the inner side of the upright post is provided with an annular boss which surrounds the inner side of the shell bracket, and a coil assembly and a magnetic circuit assembly of the elastic element detector are fixed in the shell bracket through the annular boss; one end of the base is connected with the upright column, and the other end of the base extends towards the inside of the shell bracket and bears a magnetic core of the magnetic circuit component. The utility model reduces the occupied space of the elastic element detector, realizes symmetrical design, and has the advantages of low part processing difficulty, controllable precision, small part number, concise assembly procedure, high overall strength, good repeatability and high reliability.

Description

Support structure and elastic element detector

Technical Field

The utility model relates to the field of elastic element detection, in particular to a support structure and an elastic element detector.

Background

The elastic element is an important component of the vibration system of an electrodynamic loudspeaker, and is usually a circular corrugated plate made of an elastic material, and the voice coil is held in the correct position of the magnetic gap by the action of the elastic element. When the loudspeaker works, the elastic element generates vibration due to air vibration stress, so that the middle part of the elastic element makes reciprocating motion. When the loudspeaker works, the elastic element can move for a long time, so that the transient response of the elastic element and a vibration system is worsened, even cracks or damage are generated, and further the voice coil cannot be kept at the correct position, so that the loudspeaker has obvious noise and even burns out, and the quality grade of the loudspeaker is influenced.

Therefore, it is necessary to detect the fatigue resistance of the elastic element by using an elastic element detector to select an elastic element having good fatigue resistance. In the prior art, the elastic element detector needs a driving mechanism to drive the elastic element to reciprocate so as to simulate daily use scenes, and in order to dissipate heat, the elastic element detector is designed in a mode that all devices in the elastic element detector are separately arranged and different supports are used for fixing. However, the separately arranged mode increases the occupied space of the elastic element detector and the transmission distance of the driving mechanism, so that the actual narrow detection space requirement is difficult to meet, the number of components of the elastic element detector is increased in the mode that different supports are fixed, the overall precision of the elastic element detector is difficult to control, and the assembly difficulty is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a support structure and an elastic element detector, wherein an inverted cone-shaped shell support is arranged, other devices of the elastic element detector are fixed on the shell support, the occupied space of the elastic element detector is reduced through the shell support, the requirement of narrow detection space is met, and in addition, the symmetrical design is realized through the mode that other devices are all fixed on the shell support, the part processing difficulty is low, the precision is controllable, the number of parts is small, the assembly process is simple, the overall strength is high, the repeatability is good, and the reliability is high.

In order to solve the above problems, the present invention adopts a technical solution as follows: a support structure is applied to an elastic element detector and comprises a shell support, wherein the shell support comprises a fixing ring, a stand column and a base, the stand column is arranged along the axial center circumference of the fixing ring, and two ends of the stand column are respectively connected with the fixing ring and the base; first screw holes are formed in the fixing ring at intervals, and a clamping device for clamping the elastic element to be detected is fixed to one side, away from the upright post, of the fixing ring through the first screw holes; an annular boss is arranged on the inner side of the upright post, the annular boss surrounds the inner side of the shell support, and a coil assembly and a magnetic circuit assembly of the elastic element detector are fixed in the shell support through the annular boss; one end of the base is connected with the upright post, and the other end of the base extends towards the inside of the shell bracket and bears the magnetic core of the magnetic circuit component.

Further, the fixed ring outside is to keeping away from the direction of fixed ring heart extends and forms first bellying, first bellying interval sets up, first screw runs through first bellying.

Further, the external diameter of base is less than gu fixed ring's internal diameter, the stand is to being close to the direction bending and the extension of base, and the tip of one end with the base is kept away from gu fixed ring one side is connected.

Further, the stand includes first stand, second stand, link, first stand, second stand parallel arrangement, link one end with first stand, second stand are connected, the other end with the base is kept away from solid fixed ring one side is connected.

Furthermore, the annular boss comprises a first boss, a second boss and a third boss which are arranged at intervals, the third boss is arranged between the first boss and the second boss, the supporting components connected with the two ends of the coil component are fixed inside the shell support through the first boss and the second boss, and the magnetic circuit support of the magnetic circuit component is fixed on the third boss.

Furthermore, the first boss, the second boss and the third boss extend in the direction away from the upright column to form a plane for bearing the support assembly and the magnetic circuit support.

Further, the base cavity, including first hollow cylinder, the hollow cylinder of second, second hollow cylinder one end with the stand is connected, the other end with first hollow cylinder is connected, first hollow cylinder extends to in the cavity of magnetic core.

Furthermore, the outer diameter of the first hollow cylinder is smaller than that of the second hollow cylinder, an annular platform is arranged outside the first hollow cylinder, and one end of the magnetic core is arranged on the annular platform.

Further, the number of the upright posts is 8.

Based on the same inventive concept, the utility model also provides an elastic element detector, which comprises the support structure.

Compared with the prior art, the utility model has the beneficial effects that: other devices of the elastic element detector are fixed on the shell support, the occupied space of the elastic element detector is reduced through the shell support, the requirement that the detection space is narrow is met, symmetrical design is achieved through the mode that other devices are fixed on the shell support, the component processing difficulty is low, the precision is controllable, the number of components is small, the assembling process is simple, the overall strength is high, the repeatability is good, and the reliability is high.

Drawings

FIG. 1 is a block diagram of one embodiment of a support structure of the present invention;

FIG. 2 is a cross-sectional view of one embodiment of a stent structure of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention in which a support structure is used;

FIG. 4 is a top view of one embodiment of a support structure of the present invention;

FIG. 5 is a bottom view of one embodiment of the support structure of the present invention;

FIG. 6 is a cross-sectional view of an embodiment of the elastic element detector of the present invention.

In the figure: 1. a base; 11. a first hollow cylinder; 12. a second hollow cylinder; 21. a connecting end; 221. a first upright post; 222. a second upright post; 3. a fixing ring; 31. a first boss portion; 41. a first boss; 42. a second boss; 43. a third boss; 51. connecting a bracket; 52. a connecting rod; 61. an annular elastic member; 62. a first connecting member; 63. a second connecting member; 71. a displacement detection module; 72. a framework; 73. a drive coil; 81. A terminal; 82. and (7) leading wires.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Referring to fig. 1-5, fig. 1 is a structural diagram of an embodiment of a support structure of the present invention; FIG. 2 is a cross-sectional view of one embodiment of a stent structure of the present invention; FIG. 3 is a cross-sectional view of an embodiment of the present invention in which a support structure is used; FIG. 4 is a top view of one embodiment of a support structure of the present invention; figure 5 is a bottom view of one embodiment of the support structure of the present invention. The stent structure of the present invention is described in detail with reference to fig. 1 to 5.

In this embodiment, the support structure is applied to an elastic element detector, and includes a fixing ring 3, a column and a base 1, the column is circumferentially disposed along an axis of the fixing ring 3, and both ends of the column are respectively connected with a driving mechanism and a transmission mechanism, and a housing support is formed by the fixing ring 3, the column and the base 1; first screw holes are formed in the fixing ring 3 at intervals, and a clamping device for clamping the elastic element to be detected is fixed to one side, far away from the stand column, of the fixing ring 3 through the first screw holes; an annular boss is arranged on the inner side of the upright post, the annular boss surrounds the inner side of the shell support, and a coil assembly and a magnetic circuit assembly of the elastic element detector are fixed in the shell support through the annular boss; one end of the base 1 is connected with the upright column, and the other end extends towards the inside of the shell bracket and bears the magnetic core of the magnetic circuit component.

In this embodiment, the clamping device includes a peripheral clamping ring and a central clamping ring, and the elastic element is of an annular structure, wherein the peripheral clamping ring clamps the outer side of the elastic element, and the central clamping ring is connected to a transmission mechanism fixed on the coil assembly, and the transmission mechanism drives the central clamping ring and the elastic element to move.

The transmission mechanism comprises a transmission bracket and a connecting rod 52, the outer side of the transmission bracket is connected with the coil assembly, the middle part of the transmission bracket protrudes towards the direction far away from the coil assembly to form a second protruding part 32, and the connecting rod 52 penetrates through the second protruding part 32 and is fixedly connected with the central clamping ring.

In this embodiment, the coil assembly includes a bobbin 72, a driving coil 73, and a displacement detection module 71, wherein the driving coil 73 is wound on the bobbin 72, the displacement detection module 71 is also disposed on the bobbin 72, the bobbin 72 is a cylindrical hollow structure, and the transmission bracket is fixed inside the bobbin 72.

In the present embodiment, the number of the driving coils 73 is two, the two driving coils 73 are arranged on the framework 72 at intervals, the winding directions of the two driving coils 73 are opposite, and the framework 72 is provided with the conductive foil, and the two driving coils 73 are connected in series or in parallel through the conductive foil to ensure that the stress of the two driving coils 73 is the same.

In one embodiment, the drive coil 73 is wound and baked to bond with the bobbin 72. Wherein, the driving coil 73 is directly wound on the framework 72 to be baked or independently wound, baked and shaped and then is bonded with the framework 72.

In another embodiment, the drive coil 73 may be bonded to the skeleton 72 by gluing, thereby simplifying the manufacturing process.

In the present embodiment, the displacement detection module 71 includes either one of the induction driving coil 73 and the electromagnetic sensor. The position of the driving coil 73 is calculated by inducing the driving coil 73 to cut magnetic lines of force to generate induced electromotive force, or the position of the driving coil 73 is calculated using the varied voltage data output from the electromagnetic sensor.

In a specific embodiment, when the displacement detection module 71 is an inductive driving coil 73, the position of the driving coil 73 is calculated by the formula V-BLv, where V is the induced electromotive force, B is the magnetic field strength, L is the wire length of the cutting magnetic field, and V is the displacement. The electromagnetic sensor is a hall element array, which is arranged on the FPC board attached to the frame 72, and the hall element array outputs a varying voltage in a varying magnetic field, and calculates the position of the driving coil 73 from the varying voltage.

In this embodiment, the outer side of the fixing ring 3 extends in a direction away from the center of the fixing ring 3 to form first protrusions 31, the first protrusions 31 are spaced apart from each other, and first screw holes penetrate through the first protrusions 31. The peripheral clamp ring is fixedly connected with the first boss 31 through a first screw hole.

In a specific embodiment, the peripheral clamping ring includes a pressing ring and a bearing ring, wherein the bearing ring is disposed on a side of the fixing ring 3 away from the column, the bearing ring extends in a direction laterally close to the connecting rod 52 to form a first annular platform, and an edge of the elastic element to be detected is disposed on the first annular platform. The clamping ring is arranged on the first annular platform, the inner side portion of the clamping ring surrounds and is attached to the outer wall of the bearing ring, the outer side portion of the clamping ring extends in the direction away from the bearing ring, a second protruding portion corresponding to the first protruding portion 31 is formed, and the second protruding portion is opposite to the first protruding portion and is connected with the first protruding portion through screws. The edge of the elastic element to be detected is fixed between the first annular platform and the pressing ring.

In this embodiment, elastic element is provided with the mesopore, and central grip ring includes first grip ring, second grip ring, and first grip ring, second grip ring symmetry set up, add elastic element and hold between first grip ring, second grip ring, and the connecting hole sets up at the middle part of first grip ring, second grip ring to run through first grip ring, second grip ring. Wherein the central clamping ring is arranged in the central hole of the elastic element and clamps the inner side of the central hole of the elastic element. The connecting rod 52 is fixedly connected with the central clamping ring through the connecting hole.

In other embodiments, a plurality of elastic elements may be provided, and the elastic elements may be fixed in such a manner that the central clamping ring and the peripheral clamping ring clamp different positions of two ends or edges of the elastic elements.

In this embodiment, the outer diameter of the base 1 is smaller than the inner diameter of the fixing ring 3, the pillar is bent and extended in a direction close to the base 1, and the end of one end is connected to the side of the base 1 away from the fixing ring 3.

The quantity of stand is eight, and every stand includes first stand 221, second stand 222, link 21, first stand 221, second stand 222 parallel arrangement, and link 21 one end is connected with first stand 221, second stand 222, and the other end is connected with base 1 and keeps away from solid fixed ring 3 one side.

The annular boss includes first boss 41, second boss 42, the third boss 43 that the interval set up, and third boss 43 sets up between first boss 41, second boss 42, and the supporting component who is connected with coil pack both ends passes through first boss 41, second boss 42 to be fixed inside the shell support, and magnetic circuit assembly's magnetic circuit support can be dismantled and fix on third boss 43.

Wherein, the supporting component includes support group, lower support group, goes up support group, lower support group sets up the different ends at skeleton 72, and goes up support group, lower support group and all includes annular elastic component 61, first connecting piece 62, second connecting piece 63, annular elastic component 61 encircles the setting of skeleton 72, and the inboard of annular elastic component 61 is connected with the one end of skeleton 72 through first connecting piece 62, and the outside is passed through the internal connection of second connecting piece 63 with the shell support.

In the present embodiment, the annular elastic member 61 is vulcanization-bonded to the first and second connecting

members

62, 63, and the annular openings of the annular elastic member 61 at both ends of the frame 72 are opposed to each other.

In other embodiments, the annular openings of the annular elastic member 61 may be opposite to each other.

In the present embodiment, the annular elastic member 61 is a thermoplastic elastic member.

In this embodiment, the first boss 41, the second boss 42, and the third boss 43 extend in a direction away from the pillar to form a plane for supporting the support assembly and the magnetic circuit bracket.

In a specific embodiment, the first boss 41 and the second boss 42 are disposed on the inner side of the housing bracket and respectively surround the upper support set and the lower support set, and the second connecting members 63 of the upper support set and the lower support set are respectively placed on the planes of the first boss 41 and the second boss 42. The opening plane of the annular opening of the lower support group is parallel to the first boss 41 and the opening plane of the annular opening of the lower support group is parallel to the second boss 42.

Magnetic circuit component includes magnetic core, splint and magnet steel, and the magnetic core is the loop configuration, and the holding is inside skeleton 72, and splint, magnet steel surround skeleton 72 and set up to relative with the magnetic core, splint include punch holder, lower plate, and punch holder, lower plate set up in the magnet steel both sides, and the centre gripping magnet steel.

Wherein, magnetic circuit subassembly still includes magnetic circuit support, and magnetic circuit support encircles the splint setting, and one end is connected with shell support inboard, and the other end is connected with splint, through the fixed splint of magnetic circuit support.

In a specific embodiment, the outer side of the magnetic circuit support protrudes in a direction away from the magnetic core to form a first annular protrusion structure, one side of the first annular protrusion structure is attached to one side of the third boss 43 away from the first boss 41, and the first annular protrusion structure is further provided with a screw hole through which a screw penetrates to fix the magnetic circuit support on the third boss 43. Wherein, still be provided with the rubber packing ring between first annular bulge structure and the third boss 43, carry out the damping through the rubber packing ring. The magnetic circuit support is provided with two first annular bosss relative to each other near magnetic core one side, and the arch that magnetic core one side was kept away from to punch holder, lower plate is located between the first annular arch to the first annular arch of contradicting, through the protruding centre gripping of first annular and fixed punch holder, lower plate.

In this embodiment, the base 1 is hollow and includes a first hollow column 11 and a second hollow column 12, one end of the second hollow column 12 is connected to the connecting end 21 of the upright, the other end is connected to the first hollow column 11, and the first hollow column 11 extends into the cavity of the magnetic core. Wherein, the inner diameter of the second hollow cylinder 12 gradually enlarges along the direction far away from the first hollow cylinder 11 to form an inverted cone-shaped opening. An annular platform is arranged outside the first hollow column body 11, and one end of the magnetic core is arranged on the annular platform.

In this embodiment, in order to further fix the elastic element detector, concave holes are further provided on the side of the second hollow cylinder 12 away from the first hollow cylinder 11 and on the annular platform. The housing bracket and the magnetic core are fixed by the concave hole.

In this embodiment, the first connecting member 62 is provided with fixing holes near one side of the coil assembly, the fixing holes are spaced around the first connecting member 62, and the first connecting member 62 is fixed on the coil assembly through the fixing holes. The fixing holes correspond to the through holes at the two ends of the framework 72 one by one.

In this embodiment, the coil assembly is further provided at two ends thereof with a limiting ring and a tension clamp spring which are matched with the first connecting member 62, wherein the limiting ring is provided at an outer side thereof with a protruding nail which is in one-to-one correspondence with the fixing hole of the first connecting member 62, and the protruding nail passes through the through hole of the frame 72 and is fixed in the fixing hole. An annular groove is formed in the inner side of the limiting ring, and the tension clamp spring is fixed in the annular groove. The retainer ring is pushed toward the first connecting member 62 by the radially outward tension of the tension clamp spring, so that the retainer ring is effectively fixed with the first connecting member 62.

In other embodiments, the fixing holes may also be screw holes or slots, and the first connecting member 62 and the coil assembly are fixed together by providing screws or fasteners on the frame 72.

In this embodiment, the connecting bracket 51 includes a plurality of first connecting members circumferentially disposed along the second limiting member, one end of each first connecting member is connected to the second limiting member, and the other end of each first connecting member extends toward the axis of the framework 72 and extends toward a direction close to the elastic element to be detected and is polymerized to form a protrusion.

Two notches opposite to each other are arranged at one end of the second hollow column 12 far away from the magnetic core, a terminal 81 is arranged at a position opposite to the notches on the back side of the first boss 41, the two terminals 81 are opposite to each other through the notches and are respectively connected with the driving coil 73 on the coil assembly and the displacement detection module 71 through lead wires 82.

Has the advantages that: the support structure is provided with the inverted-cone-shaped shell support, other devices of the elastic element detector are fixed on the shell support, the occupied space of the elastic element detector is reduced through the shell support, the requirement of narrow detection space is met, and in addition, the symmetrical design is realized through the mode that other devices are fixed on the shell support, the part processing difficulty is low, the precision is controllable, the number of parts is small, the assembly process is simple, the overall strength is high, the repeatability is good, and the reliability is high.

Based on the same inventive concept, the present invention further provides an elastic element detector, please refer to fig. 6, fig. 6 is a structural diagram of an embodiment of the elastic element detector of the present invention, and the elastic element detector of the present invention is described with reference to fig. 6.

In this embodiment, the elastic element detector includes a support structure, and the support structure and other structures of the elastic element detector are described in detail in the above embodiments, which are not described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A support structure is characterized in that the support structure is applied to an elastic element detector and comprises a shell support, the shell support comprises a fixing ring, a stand column and a base, the stand column is arranged along the axial center circumference of the fixing ring, and two ends of the stand column are respectively connected with the fixing ring and the base;

first screw holes are formed in the fixing ring at intervals, and a clamping device for clamping the elastic element to be detected is fixed to one side, away from the upright post, of the fixing ring through the first screw holes;

an annular boss is arranged on the inner side of the upright post, the annular boss surrounds the inner side of the shell support, and a coil assembly and a magnetic circuit assembly of the elastic element detector are fixed in the shell support through the annular boss;

one end of the base is connected with the upright post, and the other end of the base extends towards the shell bracket and bears the magnetic core of the magnetic circuit component.

2. The support structure of claim 1, wherein the exterior of the retaining ring extends away from the center of the retaining ring to form first bosses, the first bosses being spaced apart from one another, and the first threaded holes extend through the first bosses.

3. The support structure according to claim 1, wherein the outer diameter of the base is smaller than the inner diameter of the fixing ring, the pillar is bent and extended in a direction close to the base, and an end portion of one end is connected to a side of the base away from the fixing ring.

4. The support structure of claim 1, wherein the upright comprises a first upright, a second upright and a connecting end, the first upright and the second upright are arranged in parallel, one end of the connecting end is connected with the first upright and the second upright, and the other end of the connecting end is connected with one side of the base away from the fixing ring.

5. The support structure of claim 1, wherein the annular bosses include a first boss, a second boss, and a third boss, the third boss is disposed between the first boss and the second boss, the support members connected to both ends of the coil assembly are fixed inside the housing support through the first boss and the second boss, and the magnetic circuit support of the magnetic circuit assembly is detachably fixed on the third boss.

6. The support structure of claim 5, wherein the first boss, the second boss and the third boss extend away from the pillar to form a plane for supporting the support assembly and the magnetic circuit support.

7. The support structure of claim 1, wherein the base is hollow and comprises a first hollow post and a second hollow post, the second hollow post being connected at one end to the post and at the other end to the first hollow post, the first hollow post extending into the cavity of the magnetic core.

8. The scaffold structure of claim 7, wherein the outer diameter of the first hollow post is smaller than the outer diameter of the second hollow post, the junction of the first hollow post and the second hollow post forms an annular platform, and one end of the magnetic core is disposed on the annular platform.

9. The support structure of claim 1, wherein the number of columns is 8.

10. An elastic element detector, characterized in that it comprises a support structure according to any one of claims 1-9.