Runway type magnetic conductive block

Abstract

The utility model discloses a runway type magnetic conductive block which comprises a magnetic conductive block assembly, and the magnetic conductive block assembly comprises a magnetic conductive block body and arc-shaped protruding blocks integrally formed on the two sides of the magnetic conductive block body so that the magnetic conductive block assembly can form a runway type structure. The outer edge of the upper surface of an arc-shaped protruding block of the magnetic conductive block assembly is provided with a first inclined face or a first arc face protruding outwards. The middle part of the lower surface of the magnetic conductive block assembly is upwards provided with a concave structure; the concave structure comprises a first groove and a second groove communicated with the first groove, the second groove is connected with the first groove and the outside and is in a horn shape, and the width of the second groove is increased from the first groove to the outside; the arrangement of the recessed structure not only can reduce the overall weight of the utility model and save the production cost, but also can enable the magnetic lines originally distributed at the positions to be concentrated on the side wall of the magnetizer assembly, so that the distribution of the magnetic lines is more concentrated.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound generators and the technical field of accessories, and specifically relates to a runway-type magnetic conductive block. Background Art

[0002] At present, the known speakers are composed of a magnetic circuit system, a vibration system and a support system. Usually, the magnetic circuit part of the speaker is mainly composed of a magnet and a splint. The magnet of the internal magnetic speaker is generally composed of a U iron, a magnetic steel and a magnetizer. The magnetic steel is placed at the bottom of the concave space of the U iron, and the magnetizer is placed on the magnetic steel. The magnetic lines of force are concentrated on the side walls of the magnetizer opposite to the U iron. The magnetizer of the prior art is a solid cylindrical block, which has the following disadvantages: 1) Since the magnetizer is a solid cylindrical block, some magnetic lines of force are also distributed in the middle part of the magnetizer, so that the magnetic lines of force of the magnetizer are not concentrated, which weakens the strength of the magnetic field; 2) At the same time, the solid magnetizer is heavy as a whole, and the magnetic lines of force in the middle part are sparsely distributed, so the material is wasted. 3) The speaker using the existing structure of the magnetizer has poor sound effect. Therefore, it is very important to obtain a runway-type magnetic block that overcomes the above-mentioned defects. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides a runway-shaped magnetic conductive block, including a magnetic conductive block assembly, wherein the magnetic conductive block assembly includes a magnetic conductive block body and arc-shaped protrusions integrally formed on both sides of the magnetic conductive block body, so that the magnetic conductive block assembly forms a runway-shaped structure;

[0004] The outer edge of the upper surface of the arc-shaped protrusion of the magnetic conductive block assembly is provided with a first inclined surface or a first arc surface protruding outward; the middle of the lower surface of the magnetic conductive block assembly is provided with a concave structure pointing upward;

[0005] The recessed structure includes a first recessed groove and a second recessed groove connected to the first recessed groove, wherein the second recessed groove connects the first recessed groove and the outside and is trumpet-shaped, and the width of the second recessed groove increases from the first recessed groove to the outside;

[0006] The outer walls of the two arc-shaped protrusions are located on the circumference of the same circle.

[0007] Through the above technical solution, the setting of the recessed structure can not only reduce the overall weight of the utility model and save production costs, but also enable the magnetic lines originally distributed in these places to be concentrated on the side walls of the magnetic conductor assembly, making the magnetic lines distribution more concentrated.

[0008] Preferably, the first groove is cylindrical and the second groove is truncated cone-shaped. Alternatively, the first groove is prism-shaped and the second groove is prism-shaped, which may be a quadrangular prism, a hexagonal prism, or an octagonal prism, etc. The second groove changes with the number of edges of the first groove.

[0009] The outer edge of the lower surface of the arc-shaped protrusion of the magnetic conductive block assembly is provided with a second inclined surface or a second arc surface protruding outwards, which is not easy to scratch the installer during assembly.

[0010] As a preferred embodiment of the above, a first arc groove is provided on the upper surface of the main body of the magnetic conductive block, and a plurality of the arc grooves continuously form a first annular groove or are intermittently arranged and share the same center. Two second arc grooves are provided on the upper surface of the arc-shaped protrusion, and the center of the arc where the second arc groove is located is concentric with the center of the arc where the first arc groove is located. Through the above technical solution, the first arc groove and the second arc groove are used to install the utility model, and the optimal depth is 0.5mm. The contact between the magnetic conductive assembly and the magnetic steel is limited to the area within the above arc groove, and the contact area is small, which is easy to process.

[0011] The first inclined surface or the first curved surface convex outward has a width of 1.5 mm and a height of 2 mm. The second inclined surface or the second curved surface convex outward has a width of 1.5 mm and a height of 2 mm.

[0012] The diameter of the first groove and the minimum diameter of the second groove are 7.8 mm, the opening angle of the second groove is 90°, the height of the first groove is 11 mm, and the height of the second groove is 3 mm.

[0013] The overall height of the magnetic conductive block assembly is 21±0.2 mm, the overall width of the magnetic conductive block assembly is 20 mm, and the length is 27 mm.

[0014] The surface of the magnetic conductor assembly is formed by integral forging, and the surface is flattened and then sandblasted.

[0015] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, the magnetic block assembly forms a runway-shaped structure, and the runway-shaped design makes it easier to focus and transmit the magnetic lines of force. The speaker using the present invention can present clearer and more natural sound effects. In addition, when the volume is high, the speaker using the runway-shaped magnetic block can also ensure that the sound quality is not distorted and remains clear and transparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of an implementation mode of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the second embodiment of the utility model;

[0019] Figure 4 This is a bottom view of the first embodiment of the utility model;

[0020] Figure 5 This is a bottom view of the second embodiment of the utility model;

[0021] Reference numerals:

[0022] 1 magnetic conductive block assembly; 101 magnetic conductive block body; 102 arc-shaped protrusion;

[0023] 201 first inclined surface or first curved surface convex outward; 202 second inclined surface or second curved surface convex outward

[0024] 3 recessed structure; 301 first recessed groove; 302 second recessed groove;

[0025] 401 first arc-shaped groove; 402 second arc-shaped groove. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0027] Referring to the accompanying drawings, the utility model adopts the following technical solution: a runway-shaped magnetic conductive block, comprising a magnetic conductive block assembly 1, wherein the magnetic conductive block assembly 1 comprises a magnetic conductive block body 101 and arc-shaped protrusions 102 integrally formed on both sides of the magnetic conductive block body 101, so that the magnetic conductive block assembly 1 forms a runway-shaped structure;

[0028] The outer edge of the upper surface of the arc-shaped protrusion 102 of the magnetic conductive block assembly 1 is provided with a first inclined surface or a first arc surface 201 protruding outward; the middle of the lower surface of the magnetic conductive block assembly 1 is provided with a recessed structure 3 extending upward;

[0029] The recessed structure 3 includes a first recessed groove 301 and a second recessed groove 302 connected to the first recessed groove 301, wherein the second recessed groove 302 connects the first recessed groove 301 and the outside and is horn-shaped, and the width of the second recessed groove 302 increases from the first recessed groove 301 to the outside;

[0030] The outer walls of the two arc-shaped protrusions 102 are located on the circumference of the same circle.

[0031] Through the above technical solution, the setting of the recessed structure 3 can not only reduce the overall weight of the utility model and save production costs, but also enable the magnetic lines originally distributed in these places to be concentrated on the side walls of the magnetic conductor assembly, making the magnetic lines distribution more concentrated.

[0032] Preferably, the first groove 301 is cylindrical, and the second groove 302 is truncated cone. Alternatively, the first groove 301 is prism-shaped, and the second groove 302 is prism-shaped, which can be a quadrangular prism, a hexagonal prism, or an octagonal prism, etc. The second groove 302 changes with the number of edges of the first groove 301.

[0033] The outer edge of the lower surface of the arc-shaped protrusion 102 of the magnetic conductive block assembly 1 is provided with a second inclined surface or a second arc surface 202 protruding outward, which is not easy to scratch the installer during assembly.

[0034] As a preferred embodiment of the above, the upper surface of the magnetic conductive block body 101 is provided with a first arc groove 401, and a plurality of the arc grooves continuously form a first annular groove or are intermittently arranged and share the same center. The upper surface of the arc-shaped protrusion 102 is provided with two second arc grooves 402, and the center of the arc where the second arc groove 402 is located is concentric with the center of the arc where the first arc groove 401 is located. Through the above technical solution, the first arc groove 401 and the second arc groove 402 are used to install the utility model, and the optimal depth is 0.5mm. The contact between the magnetic conductive assembly and the magnetic steel is limited to the area within the above arc groove, and the contact area is small, which is easy to process.

[0035] The first inclined surface or the first outwardly convex curved surface 201 has a width of 1.5 mm and a height of 2 mm. The second inclined surface or the second outwardly convex curved surface 202 has a width of 1.5 mm and a height of 2 mm.

[0036] The diameter of the first groove 301 and the minimum diameter of the second groove 302 are 7.8 mm, the opening angle of the second groove 302 is 90°, the height of the first groove 301 is 11 mm, and the height of the second groove 302 is 3 mm.

[0037] The overall height of the magnetic conductive block assembly 1 is 21±0.2 mm, the overall width of the magnetic conductive block assembly 1 is 20 mm, and the length is 27 mm.

[0038] The surface of the magnetic conductor assembly is formed by integral forging, and the surface is flattened and then sandblasted.

[0039] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, the magnetic block assembly 1 forms a runway-shaped structure, and the runway-shaped design makes it easier to focus and transmit the magnetic lines of force. The speaker using the present invention can present clearer and more natural sound effects. In addition, when the volume is high, the speaker using the runway-shaped magnetic block can also ensure that the sound quality is not distorted and remains clear and transparent.

[0040] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A racetrack-type magnetic conductive block, characterized in that: The magnetic conductive block assembly (1) comprises a magnetic conductive block body (101) and arc-shaped protrusions (102) integrally formed on both sides of the magnetic conductive block body (101), so that the magnetic conductive block assembly (1) forms a runway-type structure; The outer edge of the upper surface of the arc-shaped protrusion (102) of the magnetic conductive block assembly (1) is provided with a first inclined surface or a first arc surface (201) protruding outwards; the middle part of the lower surface of the magnetic conductive block assembly (1) is provided with a recessed structure (3) facing upwards; The recessed structure (3) comprises a first recess (301) and a second recess (302) connected to the first recess (301), wherein the second recess (302) connects the first recess (301) and the outside and is flared, and the width of the second recess (302) increases from the first recess (301) to the outside; The outer walls of the two arc-shaped protrusions (102) are located on the circumference of the same circle.

2. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: The first groove (301) is cylindrical, and the second groove (302) is truncated cone-shaped.

3. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: The first groove (301) is in the shape of a prism, and the second groove (302) is in the shape of a prism.

4. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: The outer edge of the lower surface of the arc-shaped protrusion (102) of the magnetic conductive block assembly (1) is provided with a second inclined surface or a second arc surface (202) protruding outwards.

5. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: A first arc-shaped groove (401) is provided on the upper surface of the magnetic conductive block body (101), and a plurality of the arc-shaped grooves are continuously formed into a first annular groove or are intermittently arranged and share a common center.

6. The racetrack-shaped magnetic conductive block according to claim 1 or 5, characterized in that: Two second arc-shaped grooves (402) are provided on the upper surface of the arc-shaped protrusion (102), and the center of the arc where the second arc-shaped groove (402) is located is concentric with the center of the arc where the first arc-shaped groove (401) is located.

7. The racetrack-shaped magnetic conductive block according to claim 4, characterized in that: The first inclined surface or the first curved surface (201) convex outward has a width of 1.5 mm and a height of 2 mm.

8. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: The diameter of the first groove (301) and the minimum diameter of the second groove (302) are 7.8 mm, the opening angle of the second groove (302) is 90°, the height of the first groove (301) is 11 mm, and the height of the second groove (302) is 3 mm.

9. The racetrack-shaped magnetic conductive block according to claim 1, characterized in that: The overall height of the magnetic conductive block assembly (1) is 21±0.2 mm, the overall width of the magnetic conductive block assembly (1) is 20 mm, and the length is 27 mm.

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