Split type structure of tweeter

Abstract

The utility model provides a split type structure of a tweeter, which comprises a bottom shell, the bottom shell is provided with a mounting cavity with an opening towards the top of the bottom shell, U iron is arranged in the mounting cavity, the top of the U iron is provided with a placing position which is recessed inwards, a magnetic assembly is arranged in the placing position, a gap is formed between the magnetic assembly and the inner circumference of the U iron, and the U iron is provided with an opening. A voice coil is movably arranged in the gap, the top of the voice coil is fixedly connected with a voice diaphragm, and the top of the bottom shell is provided with an annular fixing cover which is detachably connected with the bottom shell. According to the utility model, the annular fixing cover which is detachably connected is arranged, and a consumer can dismount or mount the fixing cover of the loudspeaker according to an actual mounting position, so that the loudspeaker can be fixed in the loudspeaker mounting position in a manner of embedding the bottom shell or fixing the fixing cover, and the capability of adapting to more different mounting environments is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound box equipment, and in particular relates to a split structure of a tweeter. Background Art

[0002] A speaker is a device that converts electrical energy into sound. The speaker includes a diaphragm, a voice coil, and a permanent magnet. The voice coil is usually a coil wound around a permanent magnet. When current flows through the voice coil, it generates a magnetic field and exerts force on the permanent magnet. Since the current is constantly changing, the force between the voice coil and the permanent magnet is also constantly changing, causing the voice coil to vibrate and drive the diaphragm to vibrate synchronously. The vibration of the diaphragm compresses the surrounding air to produce sound.

[0003] As the level of automobile intelligence continues to rise, the existing number of speakers can no longer meet people's daily needs, and the installation space for speakers inside the car is very limited. To improve the sound quality, speakers need to be installed in smaller installation positions. However, the existing tweeters have uniform specifications and cannot be applied to installation positions of inconsistent sizes. Therefore, a speaker structure with a changeable size to adapt to installation positions of different sizes is particularly important. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] The utility model provides a split tweeter structure, aiming to solve the problem that the existing tweeters with unified specifications cannot be applied to installation positions with inconsistent sizes.

[0006] (2) Technical solution

[0007] The utility model provides a split structure of a tweeter; comprising a bottom shell, the bottom shell is provided with an installation cavity opened toward the top thereof, a U iron is provided in the installation cavity, the top of the U iron is provided with a placement position recessed inwardly, a magnetic component is provided in the placement position, a gap is formed between the magnetic component and the inner periphery of the U iron, a voice coil is movably provided in the gap, a sound film is fixedly connected to the top of the voice coil, and a detachably connected annular fixing cover is provided on the top of the bottom shell;

[0008] A plurality of first positioning lugs are spaced apart on the outer peripheral wall at the top of the bottom shell, and a first L-shaped positioning groove is provided on the inner peripheral wall of the fixing cover, which corresponds to the first positioning lugs one by one. The bottom shell and the fixing cover are fixed by the snap-fitting of the first positioning lugs and the first positioning grooves.

[0009] Furthermore, the bottom shell includes a bracket and a base, the base is connected to the bottom of the bracket, a plurality of second positioning lugs are spaced apart on the outer peripheral wall at the top of the base, and the inner peripheral wall of the bracket is provided with a second L-shaped positioning groove corresponding to the second positioning lugs one by one.

[0010] Furthermore, the inner wall of the bracket is provided with a plurality of fixing parts, the free end of the fixing part is provided with a step structure, the bottom of the step is a contact surface, the free end of the fixing part and below the step is provided with a supporting surface, the contact surface and the supporting surface are perpendicular to each other, the contact surface is bonded to the top of the U-iron peripheral wall, and the supporting surface is bonded to the U-iron outer peripheral wall.

[0011] Furthermore, at least one countersunk hole is provided on the top surface of the fixed cover; and a plurality of inwardly recessed mounting grooves are provided on the outer peripheral wall of the bottom shell, and the mounting grooves are equidistantly distributed in an annular manner along the outer peripheral wall of the shell.

[0012] Furthermore, the bottom of the bottom shell is provided with a plurality of protrusions facing the direction of the U iron, and the tops of the protrusions abut against the bottom of the U iron.

[0013] Furthermore, a mounting groove and a protective cover are provided on the top surface of the fixing cover, and the bottom edge of the mounting groove is clamped and fixed to the bottom of the protective cover.

[0014] Furthermore, the sound membrane includes a diaphragm and a folding ring, the folding ring is an arc-shaped ring structure, and its outer bottom edge is adhered to the top of the bottom shell, the diaphragm is located at the center of the folding ring, the outer edge of the diaphragm is connected to the inner edge of the folding ring to form a fold, and the top of the voice coil is adhered to the bottom of the fold.

[0015] Furthermore, the magnetic component includes a washer and a magnet, the washer is located above the magnet, the washer and the magnet have the same diameter and the two are coaxially corresponding; the magnetic component also includes a copper cap, the copper cap is a circular ring structure, and a convex ring extending along the center axis is provided at the top edge of the copper cap, and the copper cap is wrapped around the periphery of the washer and the magnet and the top edge of the washer.

[0016] Furthermore, the voice coil includes a coil and a coil bracket, the coil is fixedly wound on the outer wall of the coil bracket, and the top of the coil bracket is bonded to the bottom of the sound membrane.

[0017] Furthermore, the bottom shell also includes a terminal and a terminal handle, and the two terminal handles are symmetrically arranged at the two ends of the outer wall of the bottom shell. A through groove is provided at the bottom of the terminal handle, one end of the terminal is inserted into the through groove, and the other end extends outward. A wire is provided on the voice coil, and the wire passes through the terminal handle to be connected with the terminal.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model is provided with a detachably connected annular fixing cover, and consumers can remove or install the fixing cover of the speaker according to the actual installation position, so that the speaker can be fixed in the speaker installation position by means of bottom shell embedding or fixing with the fixing cover, further improving the ability of the utility model to adapt to more different installation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 This is a schematic diagram of the fixed cover and bottom shell structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the base and bracket structure of the utility model;

[0024] Figure 5 The bottom shell structure of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 6 This is an exploded view of the magnetic component of the utility model;

[0026] Figure 7 This utility model is cut away Figure 1 ;

[0027] Figure 8 This utility model is cut away Figure 2 ;

[0028] Fig. 9 The bottom shell structure of the utility model is shown in FIG. Figure 2 .

[0029] Figure markings: 1- bottom shell, 11- base, 111- installation slot, 112- second positioning lug, 113- protrusion, 12- bracket, 121- fixing piece, 1211- abutment surface, 1212- supporting surface, 122- second positioning slot, 13- wiring handle, 14- wiring post, 15- first positioning lug, 2- U iron, 3- magnetic component, 31- magnet, 32- washer, 33- copper cap, 4- voice coil, 41- coil bracket, 42- coil, 5- sound membrane, 51- diaphragm, 52- folding ring, 6- fixing cover, 61- countersunk hole, 62- protective cover, 63- first positioning slot. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-2As shown, the utility model provides a split structure of a tweeter, including a bottom shell 1, a mounting cavity opened toward the top of the bottom shell 1, a U iron 2 is arranged in the mounting cavity, a placement position recessed inward is arranged on the top of the U iron 2, a magnetic component 3 is arranged in the placement position, a gap is formed between the magnetic component 3 and the inner periphery of the U iron 2, a voice coil 4 is movably arranged in the gap, a sound film 5 is fixedly connected to the top of the voice coil 4, and a detachably connected annular fixing cover 6 is arranged on the top of the bottom shell 1;

[0032] Specifically, a plurality of inwardly recessed mounting slots 111 are provided at the lower portion of the outer peripheral wall of the bottom shell 1, and the mounting slots 111 are equidistantly distributed in an annular manner along the outer peripheral wall of the shell 1;

[0033] Specifically, at least one countersunk hole 61 is provided on the top surface of the fixing cover 6, and the fixing cover 6 can be fixed on the mounting surface by cooperating with a screw through the countersunk hole 61;

[0034] Specifically, Figure 3 As shown, a plurality of first positioning lugs 15 are spaced apart on the outer peripheral wall at the top of the bottom shell 1, and a first positioning groove 63 in an L shape and corresponding to the first positioning lugs 15 is provided on the inner peripheral wall of the fixing cover 6, and the bottom shell 1 is fixedly connected to the fixing cover 6 by the first positioning lugs 15 and the first positioning groove 63.

[0035] When the speaker installation position is small, the fixing cover 6 is removed and the utility model is fixed in the speaker installation position by embedding the bottom shell 1, which saves installation space. At the same time, the bottom shell 1 is embedded more firmly through the setting of the installation slot 111.

[0036] When there are sufficient speaker installation positions or the speaker installation positions cannot provide support for the bottom shell 1 of the utility model, the fixing cover 6 and the bottom shell 1 are snap-fitted with each other through the first positioning lug 15 and the first positioning slot 63, so that the bottom shell 1 and the fixing cover 6 are snap-fitted and fixed. The product is fixed to the mounting surface of the speaker installation position by means of the countersunk hole 61 on the fixing cover 6 and the screw or by means of bonding the bottom of the fixing cover 6, so that the utility model can adapt to more different installation environments.

[0037] Specifically, Figure 4-5 As shown, the bottom shell 1 includes a bracket 12 and a base 11, the base 11 is connected to the bottom of the bracket 12, a plurality of second positioning lugs 112 are spaced apart on the outer peripheral wall of the top of the base 11, and the inner peripheral wall of the bracket is provided with a second positioning groove 122 corresponding to the second positioning lug 112 and in an L shape, and the base 11 is fixedly connected to the bracket 12 by the engagement of the second positioning lug 112 and the second positioning groove 122;

[0038] Furthermore, if Figure 7 As shown, the inner wall of the bracket 12 is provided with a plurality of fixing parts 121 protruding toward the central axis direction of the bottom shell 1, the free end of the fixing part 121 is provided with a step structure, the bottom of the step is a contact surface 1211, the free end of the fixing part 121 and below the step are provided with a supporting surface 1212 facing the central axis direction of the bottom shell 1, the contact surface 1211 and the supporting surface 1212 are perpendicular to each other, during assembly, the contact surface 1211 is bonded to the top of the peripheral wall of the U iron 2, and the supporting surface 1212 is bonded to the outer peripheral wall of the U iron 2, and a gap is formed between the U iron 2 and the inner peripheral wall of the bottom shell 1 by the setting of the fixing part 121, and the gap is used to provide a heat dissipation space for the U iron 2.

[0039] Specifically, the top surface of the fixing cover 6 is further provided with a mounting groove 63 and a protective cover 62 , the bottom edge of the mounting groove 63 is clamped and fixed with the bottom of the protective cover 62 , and the protective cover 62 is used to protect the sound membrane 5 thereunder.

[0040] Specifically, the sound membrane 5 includes a diaphragm 51 and a folded ring 52, the folded ring 52 is an arc-shaped ring structure, and its outer bottom edge is adhered to the top of the bottom shell 1, the diaphragm 51 is located at the center of the folded ring 52, the outer edge of the diaphragm 51 is connected to the inner edge of the folded ring 52 to form a fold, and the top of the voice coil 4 is adhered to the bottom of the fold; when in use, the vibration of the voice coil 4 drives the sound membrane 5 to vibrate, and the folded ring 52 has a buffering effect on the vibration of the sound membrane 5.

[0041] Specifically, the magnetic component 3 includes a washer 32 and a magnet 31, wherein the washer 32 is located above the magnet 31, and the washer 32 and the magnet 31 have the same diameter and are coaxially corresponding; the washer 32 is low-carbon steel with a low carbon content and has a magnetic conductivity, and the washer 32 and the magnet 31 form a magnetic circuit to provide a uniform magnetic field for the vibration of the voice coil 4, thereby making the speaker have a higher sound quality level;

[0042] Furthermore, the magnetic component 3 also includes a copper cap 33, which is a circular ring structure, and a convex ring extending along the central axis is provided at its top edge. The copper cap 33 is wrapped around the outer periphery of the washer 32 and the magnet 31 and the top edge of the washer 32. The copper cap 33 is set to prevent the vortex effect generated by the washer 32 and the magnet 31, thereby improving the sound quality of the high frequencies in the speaker.

[0043] Specifically, the voice coil 4 includes a coil 42 and a coil bracket 41. The coil 42 is fixedly wound on the outer wall of the coil bracket 41. The top of the coil bracket 41 is bonded to the bottom of the sound membrane 5. When in use, the coil 42 drives the coil bracket 41 to vibrate under the action of the magnetic field, thereby driving the sound membrane 5 to vibrate and produce sound.

[0044] Specifically, Figure 5 As shown in Figure 8, the bottom shell 1 also includes a terminal 14 and a terminal handle 13. The two terminal handles 13 are symmetrically arranged at the two ends of the outer wall of the bottom shell 1. A through groove is provided at the bottom of the terminal handle 13. One end of the terminal 14 is inserted into the through groove, and the other end extends to the outside. A wire is provided on the voice coil 4, and the wire passes through the terminal handle 13 and is connected to the terminal 14.

[0045] Specifically, Figure 7-9 As shown, the bottom of the base 11 is provided with a plurality of protrusions 113 facing the direction of the U-iron 2, the top of the protrusion 113 abuts against the bottom of the U-iron 2 and provides support for the U-iron 2, the setting of the protrusion 113 makes the U-iron 2 in the installation cavity in a suspended state and provides more heat dissipation space for the U-iron 2.

[0046] The following is a detailed description of the working principle of the utility model;

[0047] When in use, the terminal 14 is connected to a power source and the voice coil 4 is energized. After the voice coil 4 is energized, a constantly changing magnetic field is formed according to the change of the current. Under the interaction of the magnetic field of the magnetic component 3 and the magnetic field of the voice coil 4, the voice coil 4 vibrates. The vibration of the voice coil 4 drives the sound membrane 5 to vibrate and produce sound.

[0048] At the same time, consumers can remove or install the fixing cover 6 of the utility model according to the actual installation position; after removing the fixing cover 6, the speaker can be embedded in the installation position and fixed by the installation slot 111 of the bottom shell 1; after installing the fixing cover 6, the speaker can be fixed to the installation surface by using the countersunk hole 61 on the fixing cover 6 and screws or by gluing the bottom of the fixing cover 6.

[0049] The innovation of the utility model lies in the provision of a detachable annular fixing cover, which consumers can remove or install according to the actual installation position, so that the speaker can be fixed in the speaker installation position by embedding the bottom shell or fixing the fixing cover, further improving the ability of the utility model to adapt to more different installation environments.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tweeter split structure, characterized in that: The invention comprises a bottom shell (1), wherein the bottom shell (1) is provided with an installation cavity which is open toward the top thereof, a U-iron (2) is provided in the installation cavity, a placement position which is recessed inwards is provided at the top of the U-iron (2), a magnetic component (3) is provided in the placement position, a gap is formed between the magnetic component (3) and the inner periphery of the U-iron (2), a voice coil (4) is movably provided in the gap, a sound membrane (5) is fixedly connected to the top of the voice coil (4), and a detachably connected annular fixing cover (6) is provided at the top of the bottom shell (1); A plurality of first positioning lugs (15) are spaced apart on the outer peripheral wall at the top of the bottom shell (1), and an inner peripheral wall of the fixing cover (6) is provided with first positioning grooves (63) in an L shape corresponding to the first positioning lugs (15) one by one, and the bottom shell (1) and the fixing cover (6) are fixedly connected by the first positioning lugs (15) and the first positioning grooves (63).

2. According to claim 1, a tweeter split structure is characterized in that: The bottom shell (1) comprises a bracket (12) and a base (11); the base (11) is connected to the bottom of the bracket (12); a plurality of second positioning lugs (112) are spaced apart on the outer peripheral wall of the top of the base (11); and an inner peripheral wall of the bracket is provided with an L-shaped second positioning groove (122) corresponding one-to-one to the second positioning lugs (112).

3. According to claim 2, a tweeter split structure is characterized in that: The inner peripheral wall of the bracket (12) is provided with a plurality of fixing members (121); the free end of the fixing member (121) is provided with a step structure; the bottom of the step is a contact surface (1211); the free end of the fixing member (121) and below the step is provided with a supporting surface (1212); the contact surface (1211) and the supporting surface (1212) are perpendicular to each other; the contact surface (1211) is bonded to the top of the peripheral wall of the U iron (2); and the supporting surface (1212) is bonded to the outer peripheral wall of the U iron (2).

4. According to claim 2, a tweeter split structure is characterized in that: The top surface of the fixed cover (6) is provided with at least one countersunk hole (61); the outer peripheral wall of the bottom shell (1) is provided with a plurality of inwardly recessed mounting grooves (111), and the mounting grooves (111) are equidistantly distributed in an annular manner along the outer peripheral wall of the bottom shell (1).

5. According to claim 4, a tweeter split structure is characterized in that: The bottom of the bottom shell (1) is provided with a plurality of protrusions (113) facing the direction of the U iron (2), and the tops of the protrusions (113) are in contact with the bottom of the U iron (2).

6. The tweeter split structure according to claim 5, characterized in that: The top surface of the fixed cover (6) is provided with a first positioning slot (63) and a protective cover (62), and the bottom edge of the first positioning slot (63) is fixedly engaged with the bottom of the protective cover (62).

7. The tweeter split structure according to claim 1, characterized in that: The sound membrane (5) comprises a diaphragm (51) and a folding ring (52); the folding ring (52) is an arc-shaped ring structure, the bottom edge of the outer periphery of which is adhered to the top of the bottom shell (1); the diaphragm (51) is located at the center of the folding ring (52); the outer edge of the diaphragm (51) is connected to the inner edge of the folding ring (52) to form a fold; the top of the voice coil (4) is adhered to the bottom of the fold.

8. The tweeter split structure according to claim 1, characterized in that: The magnetic component (3) comprises a washer (32) and a magnet (31), wherein the washer (32) is located above the magnet (31), and the washer (32) and the magnet (31) have the same diameter and are coaxially corresponding to each other; the magnetic component (3) further comprises a copper cap (33), wherein the copper cap (33) is a circular ring structure, and a convex ring extending along the central axis is provided at the top edge thereof, and the copper cap (33) is wrapped around the outer periphery of the washer (32) and the magnet (31) and the top edge of the washer (32).

9. The tweeter split structure according to claim 1, characterized in that: The voice coil (4) comprises a coil (42) and a coil support (41); the coil (42) is fixedly wound on the outer wall of the coil support (41); and the top of the coil support (41) is bonded to the bottom of the sound membrane (5).

10. The tweeter split structure according to claim 1, characterized in that: The bottom shell (1) also includes a terminal (14) and a terminal handle (13), wherein the two terminal handles (13) are symmetrically arranged at the two ends of the outer peripheral wall of the bottom shell (1), and a through groove is provided at the bottom of the terminal handle (13). One end of the terminal (14) is inserted into the through groove, and the other end extends outward. A wire is provided on the voice coil (4), and the wire passes through the terminal handle (13) and is connected to the terminal (14).

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