High-adaptability magnetic gauge assembly

Abstract

The utility model provides a magnetic gauge assembly with high adaptability, comprising a loudspeaker upper housing, one side of the loudspeaker upper housing is provided with a basin stand structure, the basin stand structure is internally provided with a washer, a main magnetic steel is installed below the washer, the bottom of the main magnetic steel is provided with a T iron, the T iron comprises an installation column body, and the installation column body is provided with a through hole. The magnetic gauge comprises a plugging part and a positioning part, one end, far away from the connecting part, of the positioning part is a cylindrical body, the inner side wall of one end, close to the conical body, of the cylindrical body extends inwards to form an abutting table, and when the positioning part sleeves the mounting cylinder, the abutting table abuts against the surface of the upper end of the mounting cylinder; a plurality of deformation grooves are formed in the cylindrical body in a circumferential array at equal intervals by taking the axis of the magnetic gauge as a reference, the height of the cylindrical body is defined as L, the groove depth of each deformation groove is L1, and L1 is equal to 2 / 3-3 / 4 * L. The positioning part not only has enough holding power and ensures that the positioning part is not loosened in the use process, but also has enough toughness and is convenient to sleeve the mounting cylinder.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high adaptability's magnetic gauge assembly, it applies to loudspeaker field. BACKGROUND

[0002] The magnetic gauge in loudspeaker mainly refers to the tool for assisting positioning magnet, magnet holder etc. in the magnetic circuit system of loudspeaker. In the assembly process of loudspeaker, magnetic gauge plays a key role, it helps to ensure that magnet and magnet holder etc. are correctly installed on the basket structure, form uniform magnetic air gap, which is crucial to the performance of loudspeaker.

[0003] Existing magnetic gauge, for example, patent publication number CN209234056U discloses a kind of magnetic gauge easy to plug, but the wall thickness of the positioning part on the magnetic gauge is relatively thin, the opening of deformation groove is relatively deep, is prone to cause unstable fixation, therefore, the utility model designs a kind of high adaptability's magnetic gauge assembly. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of high adaptability's magnetic gauge assembly, can effectively solve the above-mentioned problems.

[0005] The utility model is realized as follows:

[0006] A kind of high adaptability's magnetic gauge assembly, including loudspeaker upper shell, the loudspeaker upper shell one side is provided with a basket structure, the basket structure is provided with a magnet holder in, the magnet holder below is installed with a main magnetic steel, the main magnetic steel bottom is provided with a T iron, the T iron includes bottom plate and installation column body, the installation column body is provided with magnetic gauge on sleeve:

[0007] The magnetic gauge includes plug-in part and positioning part, the plug-in part and positioning part are connected by connecting part, the positioning part is away from the inner side wall of the one end of columnar body near conical body and is provided with a abutment platform extending inwards, when positioning part is set on installation column body, the abutment platform abuts the upper end surface of installation column body, the columnar body is provided with a plurality of deformation grooves with magnetic gauge axis as reference equidistant circumferential array, define the height of columnar body as L, the groove depth of deformation groove is L1, then have L1=2 / 3~3 / 4*L.

[0008] As further improved, the plug-in part is provided as a columnar boss, the lower end surface of the columnar boss is arranged with a certain angle α with the side wall of connecting part, then have α < 90 °.

[0009] As further improved, the lower end surface of the columnar boss is provided with a plurality of grooves with magnetic gauge axis as reference equidistant circumferential array.

[0010] As further improved, define the height of abutment platform as L2, then have L2=1 / 4~1 / 2*L.

[0011] As further improved, the basin structure includes a placement rack and support racks arranged on both sides of the placement rack, the placement rack is concave to form a receiving cavity, the placement rack includes a placement plate, a through slot is arranged in the middle of the placement plate, a hussar is arranged at the bottom of the placement plate, the bottom of the hussar abuts against a main magnetic steel, an installation hole is arranged on the hussar and the main magnetic steel, and a T-shaped iron is arranged at the bottom of the main magnetic steel.

[0012] The beneficial effects of the utility model are: through the setting of the plurality of deformation grooves which are arranged on the columnar body and have the magnetic gauge axis as the reference equidistant circumferential array, defining the height of the columnar body as L, and the groove depth of the deformation groove as L1, then L1=2 / 3~3 / 4*L, the positioning part not only has enough grip to ensure that it does not loosen in the use process, but also the deformation groove has enough toughness, which is convenient for sleeving on the installation column body. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 It is the schematic diagram of the explosion structure of the magnetic gauge assembly provided by the utility model embodiment.

[0015] Figure 2 It is the schematic diagram of the cross section structure of the magnetic gauge assembly provided by the utility model embodiment.

[0016] Figure 3 It is the schematic diagram of the cross section structure of the magnetic gauge provided by the utility model embodiment.

[0017] Figure 4 It is the schematic diagram of the three-dimensional structure of the magnetic gauge provided by the utility model embodiment.

[0018] Figure 5 It is the schematic diagram of the magnetic gauge structure provided by another utility model embodiment.

[0019] Figure 6 It is the reference diagram of the use state of the gauge pulling device provided by the utility model embodiment.

[0020] Figure 7 It is the schematic diagram of the top view structure of the gauge pulling device provided by the utility model embodiment.

[0021] Figure 8 It is Figure 7 The schematic diagram of the cross section structure at C-C.

[0022] Figure 9 is Figure 8 is an enlarged structural schematic view of A in the middle.

[0023] Figure 10 is a three-dimensional structural schematic view of the gauge pulling device provided in the embodiments of the present application.

[0024] Figure 11 is a sectional structural schematic view of the connecting block provided in the embodiments of the present application.

[0025] The attached drawings are as follows:

[0026] 10, upper shell of loudspeaker; 11, stand structure; 111, placing rack; 112, connecting rack; 113, accommodating cavity; 114, placing plate; 12, Hua Si; 13, main magnetic steel; 14, T-shaped iron; 141, bottom plate; 142, mounting column;

[0027] 20, magnetic gauge; 21, plug-in part; 211, columnar boss; 212, groove; 22, connecting part; 23, positioning part; 231, conical body; 232, columnar body; 233, abutting table; 234, deformation groove;

[0028] 30, gauge pulling device; 31, U-shaped rack; 311, supporting rack; 32, driving cylinder; 321, first air inlet; 322, pressure relief valve; 323, second air inlet; 324, piston rod; 3241, abutting block; 325, limiting plate; 326, spring; 33, clamping jaw assembly; 331, connecting block; 3311, assembly hole; 3312, limiting groove; 3313, annular groove; 3314, vertical groove; 3315, assembly groove; 332, clamping jaw; 3321, clamping hook; 3322, convex edge; 333, rotating shaft. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application.

[0030] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Reference Figures 1-2 As shown, a highly adaptable magnetic gauge assembly includes a speaker upper housing 10. A basket structure 11 is provided on one side of the speaker upper housing 10. The basket structure 11 includes a placement frame 111 and support frames 311 disposed on both sides of the placement frame 111. The placement frame 111 is recessed to form an accommodating cavity 113. The placement frame 111 includes a placement plate 114. A through slot is provided in the middle of the placement plate 114. A washer 12 is provided at the bottom of the placement plate 114. A main magnet 13 abuts against the bottom of the washer 12. A mounting hole is provided on the washer 12 and the main magnet 13. A T-iron 14 is provided at the bottom of the main magnet 13. The main magnet 13 is made of hard magnetic materials such as ferrite or neodymium iron boron. The T-iron 14 includes a base plate 141 and a mounting column 142. The base plate 141 abuts against the bottom of the main magnet 13, allowing the mounting column 142 to pass through the mounting hole and through slot and be installed and fixed with the magnetic gauge 20. There is a gap between the mounting column 142 and the mounting hole. The magnetic gauge 20 is used to position the T-iron 14, main magnet 13, washer 12 and other components, so that the voice coil is installed in the gap and can obtain a stable magnetic field. When current passes through, it moves according to Fleming's left-hand rule, and the voice coil can drive the diaphragm to vibrate. After installation, the magnetic gauge 20 is removed to prevent it from interfering with the normal magnetic field distribution of the speaker and affecting the speaker's performance and sound quality. Therefore, the magnetic gauge 20 is used during the installation process.

[0032] Reference Figures 3-4As shown, the magnetic gauge 20 includes an insertion / removal part 21 and a positioning part 23, which are connected by a connecting part 22. The magnetic gauge 20 has a hollow structure in the middle. The positioning part 23 is sleeved on the mounting column 142 to position the T-iron 14, the main magnet 13, and the washer 12. In this embodiment, the insertion / removal part 21 is a columnar boss 211. The lower end surface of the columnar boss 211 is set at a certain angle α with the side wall of the connecting part 22. In this embodiment, α < 90°, so that the pull gauge fixture can better engage the columnar boss 211. The lower end surface of the columnar boss 211 is provided with a plurality of grooves 212 arranged in a circular array at equal intervals with the axis of the magnetic gauge 20 as a reference. The pull gauge fixture is provided with a protruding edge 3322 corresponding to the groove 212, so that the protruding edge 3322 is set in the groove 212, which facilitates the positioning of the magnetic gauge 20.

[0033] The connecting part 22 is cylindrical, and the positioning part 23 includes a conical body 231 near the connecting part 22 and a cylindrical body 232 away from the connecting part 22. An abutment platform 233 extends inwardly from the inner wall of the cylindrical body 232 near the conical body 231. When the positioning part 23 is fitted onto the mounting column 142, the abutment platform 233 abuts against the upper surface of the mounting column 142. The cylindrical body 232 is positioned with the axis of the magnetic gauge 20 as a reference. The circumferential array of the spaced parts is provided with several deformation grooves 234. The deformation grooves 234 are used to adapt to the size of the mounting column 142. If the size of the positioning part 23 is slightly smaller than the size of the mounting column 142, installation can still be performed. Let the height of the column 232 be L, the groove depth of the deformation groove 234 be L1, and the height of the abutment platform 233 be L2. Then, L1 = 2 / 3 to 3 / 4 * L, L2 = 1 / 4 to 1 / 2 * L. First, the height of the abutment platform 233 should not be too high, on the one hand, to abut against... If the height of the mounting platform 233 is too high, it will increase the consumption of materials. On the other hand, if the height of the mounting platform 233 is high, the contact surface between the positioning part 23 and the side wall of the mounting column 142 will be small, which may cause the positioning part 23 to be difficult to snap into the mounting column 142. Secondly, the depth of the deformation groove 234 should not be too deep. For example, in a magnetic gauge 20 that is easy to insert and remove, the deformation groove 234 extends to the cone 231. In this case, the gripping force of the positioning part is not enough, which may lead to unstable positioning and the problem of falling off during use. The depth of the deformation groove 234 should not be too shallow either. If it is too shallow, it may also cause the positioning part 23 to be difficult to snap into the mounting column 142. Therefore, in one embodiment of this utility model, L1 = 2 / 3*L and L2 = 1 / 2*L. With this size setting, the positioning part 23 not only has enough gripping force to ensure that it does not loosen during use, but the deformation groove 234 also has enough toughness to facilitate fitting onto the mounting column 142.

[0034] ReferenceFigure 5 As shown, in another embodiment, the deformation groove 234 is gradually reduced in size in the direction away from the conical body 231. The advantage of this arrangement is that the tail of the positioning portion 23 has a large area in contact with the mounting column 142, which can have better grip, making the installation more stable. Because the magnetic ruler 20 pays more attention to installation stability during use, otherwise it will cause the installation of the T iron 14, the main magnetic steel 13, the dust core 12 and other components to deviate, causing instability of the magnetic field, which will affect the use effect of the loudspeaker. Therefore, a stronger grip is required. Because the opening at the top of the deformation groove 234 is large, it may lead to poor strength. The arrangement of the abutting table 233 can exactly make up for this shortcoming.

[0035] Referring to Figures 6-9As shown, because the magnetic gauge 20 needs a certain grip, the installation is more stable, and then in the process of pulling gauge, if the human pulling, may cause the T iron 14, main magnetic steel 13, Huasi 12 etc. The crack of the adhesive between the components, therefore, in the process of pulling gauge, need to be equipped with a certain professional and convenient equipment, it has certain stability, and also can facilitate the pulling gauge, therefore, the utility model discloses a kind of pulling gauge device 30 for loudspeaker, including: U-shaped frame 31, both ends are arranged as support frame 311, the bottom of the U-shaped frame 31 is provided with a through hole, a driving cylinder 32 is installed on the through hole, the driving cylinder 32 is close to the first air inlet 321 of one end of U-shaped frame 31, the first air inlet 321 is provided with pressure relief valve 322, the second air inlet 323 is provided with the driving cylinder 32 away from one end of U-shaped frame 31, the piston rod 324 of the driving cylinder 32 passes through the through hole and is arranged between both ends support frame 311, the piston rod 324 is connected with jaw assembly 33, the jaw assembly 33 includes the connecting block 331 connected with the piston rod 324, the connecting block 331 is provided with an assembly hole 3311, the piston rod 324 is installed in assembly hole 3311, the connecting block 331 both sides are provided with symmetrical assembly groove 3315, the assembly groove 3315 is installed with about the symmetrical jaw 332 of connecting block 331 axis direction, the jaw 332 is installed in assembly groove 3315 by rotating shaft 333, so that jaw 332 can be rotated, to adapt to more different sizes of magnetic gauge 20, the tail of the jaw 332 is provided with hook 3321, the support frame 311 is abutted on the surface of loudspeaker upper shell 10, the hook 3321 is abutted on both sides of plug-in part 21, by controlling pressure relief valve 322, so that piston rod 324 retracts, in turn drives magnetic gauge 20 to separate from mounting column body 142, by the pulling gauge device 30 shown in the utility model, on the one hand, can free both hands, without human pulling gauge, so that pulling gauge is more simple, on the other hand, by the pulling gauge mode of cylinder driving jaw assembly 33, magnetic gauge 20 is pulled out from a fixed direction, can effectively prevent human pulling, may cause the crack of the adhesive between T iron 14, main magnetic steel 13, Huasi 12 etc. The components.

[0036] Referring to Figure 10 As shown, in another embodiment, the upper surface of the hook 3321 is arc-shaped and adapted to the plug-in part 21, the hook 3321 has a certain inclination angle α, so that the jaw 332 can hook the plug-in part 21 tightly when it is opened, preventing loosening during the pulling gauge process, the hook 3321 is provided with a convex edge 3322, so that the convex edge 3322 is arranged in the groove 212, facilitating the positioning of the magnetic gauge 20, preventing the hook 3321 from falling off during the pulling gauge process, causing the pulling gauge to fail, affecting the operation efficiency, and also causing the positioning to fail, thereby affecting the quality of the loudspeaker.

[0037] Referring to Figures 6-11 As shown in FIG. 10, in another embodiment, the end of the piston rod 324 is provided with a limiting plate 325, and a spring 326 is arranged between the limiting plate 325 and the connecting block 331. A limiting groove 3312 is arranged on the side wall of the assembly hole 3311. The limiting groove 3312 includes an annular groove 3313 and a plurality of vertical grooves 3314 which are in communication with the annular groove 3313 and arranged above the annular groove 3313. The vertical grooves 3314 are arranged in an equidistant annular array about the axis of the assembly hole 3311. A contact block 3241 corresponding to the limiting groove 3312 is mounted on the side wall of the piston rod 324. In normal use, under the action of the spring 326, the contact block 3241 is mounted in the vertical groove 3314. When the angle needs to be adjusted, the connecting block 331 is compressed downward and can be rotated along the annular groove 3313. After the connecting block 331 is rotated to a suitable angle, the connecting block 331 is arranged in the corresponding vertical groove 3314 under the action of the spring 326. The advantage of this arrangement is that the upper shell 10 of the loudspeaker is long and narrow, and the accommodating cavity 113 is also long and narrow. The size of the upper shell 10 of the loudspeaker is different. For a larger size of the upper shell 10 of the loudspeaker, the support frame 311 is abutted on both sides of the width direction of the upper shell 10 of the loudspeaker, and the clamping jaw 332 is arranged on both sides of the length direction of the accommodating cavity 113. In this way, the opening angle of the clamping jaw 332 is larger, which is suitable for the size of the upper shell 10 of the loudspeaker. If the size of the upper shell 10 of the loudspeaker is smaller, the support frame 311 is abutted on both sides of the length direction of the upper shell 10 of the loudspeaker, and the clamping jaw 332 can only be arranged on both sides of the length direction of the accommodating cavity 113, otherwise the clamping jaw 332 cannot be inserted into the accommodating cavity 113. Therefore, through the arrangement of the contact block 3241 and the limiting groove 3312, the angle of the clamping jaw assembly 33 is adjusted to adapt to different sizes of the upper shell 10 of the loudspeaker.

[0038] The preferred embodiments of the present application have been described above with particular references to the accompanying drawings. However, it should be understood by those skilled in the art that the present application can be modified and changed in various manners. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall fall within the scope of the present application.

Claims

1. A high-adaptability magnetic gauge assembly, comprising a speaker upper shell (10), one side of the speaker upper shell (10) is provided with a yoke structure (11), the yoke structure (11) is provided with a H-shaped magnet (12), a main magnetic steel (13) is installed below the H-shaped magnet (12), a T-shaped iron (14) is arranged at the bottom of the main magnetic steel (13), the T-shaped iron (14) comprises a bottom plate (141) and a mounting column (142), a magnetic gauge (20) is sleeved on the mounting column (142), characterized in that: the magnetic gauge (20) comprises a plug-in part (21) and a positioning part (23), the plug-in part (21) and the positioning part (23) are connected through a connecting part (22), one end of the positioning part (23) away from the connecting part (22) is a columnar body (232), an abutting table (233) is arranged on the inner side wall of one end of the columnar body (232) close to a conical body (231), when the positioning part (23) is sleeved on the mounting column (142), the abutting table (233) abuts against the upper end surface of the mounting column (142), a plurality of deformation grooves (234) are arranged on the columnar body (232) at equal intervals in a circumferential array with the axial line of the magnetic gauge (20) as a reference, the height of the columnar body (232) is defined as L, the groove depth of the deformation groove (234) is defined as L1, and L1 = 2 / 3-3 / 4*L.

2. A magnetorquer assembly of claim 1, wherein, the plug-in part (21) is arranged as a columnar boss (211), the lower end surface of the columnar boss (211) is arranged at a certain inclination angle α with the side wall of the connecting part (22), and α < 90°.

3. A magnetorquer assembly of claim 2, wherein, a plurality of grooves (212) are arranged on the lower end surface of the columnar boss (211) at equal intervals in a circumferential array with the axial line of the magnetic gauge (20) as a reference.

4. A magnetorquer assembly of claim 1, wherein, the height of the abutting table (233) is defined as L2, and L2 = 1 / 4-1 / 2*L.

5. A magnetorquer assembly of claim 1, wherein, the yoke structure (11) comprises a placement rack (111) and support racks (311) arranged on both sides of the placement rack (111), the placement rack (111) is concave to form a containing cavity (113), the placement rack (111) comprises a placement plate (114), a through slot is arranged in the middle of the placement plate (114), a H-shaped magnet (12) is arranged at the bottom of the placement plate (114), a main magnetic steel (13) abuts against the bottom of the H-shaped magnet (12), an installation hole is arranged on the H-shaped magnet (12) and the main magnetic steel (13), and a T-shaped iron (14) is arranged at the bottom of the main magnetic steel (13).

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