Pre-assembly structure for reducing assembly error of loudspeaker

Abstract

The utility model relates to a pre-assembly structure for reducing assembly errors of a loudspeaker. The pre-assembly structure comprises the loudspeaker and a pre-assembly jig, the loudspeaker comprises a vibration sound group and a magnetic circuit group. The vibration sound group comprises a voice coil. The magnetic circuit group comprises T iron. The pre-assembling jig comprises a mounting part, an assembling part and an inserting groove. And the central axis positions of the mounting part, the assembling part and the inserting groove are on the same straight line. And the mounting part assists the assembling part in assembling the vibration sound group. And the vibration sound group is assembled on the assembling part through the voice coil. The assembling part is used for assembling the vibration sound set. And the inserting groove is formed in one end, far away from the mounting part, of the assembling part. And the T iron is inserted into the insertion groove. The inserting groove is used for enabling the central axis of the magnetic circuit group and the central axis of the vibration sound group to be arranged on the same straight line. The pre-assembly structure for reducing the assembly error of the loudspeaker is provided with the assembly part and the insertion groove, so that the central axis positions of the vibration sound group and the magnetic circuit group are positioned on the same straight line, and the installation error of the loudspeaker is reduced.

Description

Technical Field

[0001] The utility model relates to the field of loudspeakers, in particular to a pre-assembly structure for reducing loudspeaker assembly errors. Background Art

[0002] A speaker is a transducer device that converts electrical signals into acoustic signals. Audio power vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects, and resonates with the surrounding air to produce sound. Among them, the electromotive force speaker is an electroacoustic transducer that uses the electromotive principle. Because of its simple structure, easy production, and excellent performance, it is currently the most widely used and best speaker.

[0003] Common speakers are assembled in one piece, that is, the folding ring, the cone, the basin frame, the voice coil, the elastic wave, the magnetic plate, the magnet and the T iron are assembled in order from top to bottom. This installation method causes the error generated when installing the upper parts to be inherited to the later installed parts, resulting in an increase in the accumulated error and reducing the yield rate of the speaker. Utility Model Content

[0004] In view of this, the utility model provides a pre-assembly structure for reducing speaker assembly errors to solve the problem of cumulative errors generated during speaker installation.

[0005] The pre-assembly structure for reducing the speaker assembly error includes at least one speaker and at least one pre-assembly jig for pre-installing the speaker. The speaker includes at least one vibration sound group sleeved on the pre-assembly jig, and at least one magnetic circuit group inserted in the pre-assembly jig. The vibration sound group includes at least one voice coil sleeved on the outer periphery of the pre-assembly jig. The magnetic circuit group includes at least one T iron inserted in the pre-assembly jig. The pre-assembly jig includes at least one mounting portion, at least one assembly portion arranged below the mounting portion, and at least one insertion groove arranged inside the assembly portion. The central axes of the mounting portion, the assembly portion, and the insertion groove are in the same straight line. The mounting portion is used to sleeve the vibration sound group. The vibration sound group is assembled on the assembly portion through the voice coil, and the central axes of the components of the vibration sound group are in the same straight line with the central axis of the assembly portion. The insertion groove is arranged at one end of the assembly portion away from the mounting portion. The T iron is inserted in the insertion groove. The insertion groove sets the central axes of the magnetic circuit group and the vibration sound group in the same straight line.

[0006] Furthermore, the vibration sound group also includes at least one paper cone arranged at one end of the voice coil, at least one spring installed on the outer periphery of the voice coil and below the paper cone, and at least one basin frame fixedly arranged on the outer edge of the paper cone and the spring, the voice coil includes at least one voice coil frame, at least one coil sleeved on the outer periphery of the voice coil frame, the voice coil frame is arranged in the vibration sound group and the magnetic circuit group, and the coil is sleeved below the spring.

[0007] Furthermore, the magnetic circuit assembly also includes at least one magnet arranged above the T-iron, at least one magnetic conductive plate arranged above the magnet, the magnet is sleeved outside the pre-assembled fixture, and the magnetic conductive plate is sleeved around the periphery of the pre-assembled fixture.

[0008] Furthermore, a clamping ring is provided on one side of the magnetic conductive plate close to the magnet, and the inner diameter of the clamping ring is greater than or equal to the inner diameter of the magnetic conductive plate.

[0009] Furthermore, the mounting portion includes at least one mounting portion body, a plurality of friction grooves arranged on the outside of the mounting portion body, and at least one transition portion connecting the mounting portion and the assembling portion.

[0010] Furthermore, the outer surface of the transition portion is inclined at an equal angle to form a slope from the mounting portion to the assembling portion.

[0011] Further, the assembling portion comprises at least one spring groove arranged at one end of the assembling portion close to the mounting portion, and the spring groove is arranged along the inner side wall of the assembling portion.

[0012] Furthermore, the insertion slot includes at least one expansion slot, and the expansion slot includes at least one expansion portion and at least one contraction portion connected to the expansion portion, the expansion portion is rectangular and arranged along the arrangement direction of the mounting portion and the assembly portion, and the contraction portion is circular and arranged on the mounting portion.

[0013] Compared with the prior art, the utility model provides a pre-assembled structure for reducing the speaker assembly error. By setting the mounting portion, the vibration sound group can be quickly mounted on the assembly portion, and the central axis of the vibration sound group is set on the central axis of the assembly portion. The assembly portion is evenly arranged and the outer diameter of the assembly portion is the same as the inner diameter of the vibration sound group, so that the central axis of each component of the vibration sound group and the central axis of the assembly portion are in the same straight line during installation. The insertion slot is used to insert the round tube of the T iron, so that the central axis of the magnetic circuit group and the insertion slot are arranged in the same straight line, and then the central axis of the magnetic circuit group and the vibration sound group are arranged in the same straight line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A schematic structural diagram of a pre-assembled structure for reducing speaker assembly errors provided by the utility model.

[0015] Figure 2 The utility model provides a schematic diagram of the exploded structure of a pre-assembled structure for reducing speaker assembly errors.

[0016] Figure 3 A cross-sectional view of a pre-assembled structure for reducing speaker assembly errors provided by the utility model. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0018] See also Figures 1 to 3 , which is a schematic diagram of a pre-assembled structure for reducing speaker assembly errors provided by the utility model. The pre-assembled structure for reducing speaker assembly errors includes at least one speaker 10, and at least one pre-assembly fixture 20 for pre-installing the speaker 10. It can be imagined that the pre-assembly fixture for reducing speaker assembly errors also includes other functional modules, such as connectors, etc., which are well known to those skilled in the art and will not be described in detail here.

[0019] The speaker 10 includes at least one vibration sound group 11 mounted on the pre-assembly jig 20, and at least one magnetic circuit group 12 inserted into the pre-assembly jig 20. The central axes of the vibration sound group 11 and the magnetic circuit group 12 are arranged on the same straight line, that is, the central axes of the vibration sound group 11 components and the magnetic circuit group 12 components are located on the same straight line.

[0020] The vibration sound group 11 includes at least one voice coil 111 sleeved on the periphery of the pre-assembly jig 20, at least one paper cone 112 arranged at one end of the voice coil 111, at least one spring 113 installed on the periphery of the voice coil 111 and below the paper cone 112, and at least one basin frame 114 fixedly arranged on the outer edge of the paper cone 112 and the spring 113. The voice coil 111 includes at least one voice coil frame 1111 and at least one coil 1112 sleeved on the periphery of the voice coil frame 1111. The voice coil 111 is tubular, and the voice coil frame 1111 is arranged in the vibration sound group 11 and the magnetic circuit group 12. The coil 1112 is sleeved below the spring 113. When the voice coil 111 is energized, the coil 1112 moves on the voice coil frame 1111 due to the electromotive force. It is a general technology and will not be described in detail here. The vibration sound group 11 is a general technology and will not be described in detail here.

[0021] The magnetic circuit group 12 includes at least one T-iron 121 inserted in the pre-assembly jig 20, at least one magnet 122 arranged above the T-iron 121, and at least one magnetic conductive plate 123 arranged above the magnet 122. The T-iron 121 is used to conduct magnetism when power is turned on, thereby assisting the vibration of the voice coil 111. The T-iron 121 is shaped like a truncated cone with a circular tube in the center. The magnet 122 is sleeved outside the pre-assembly jig 20, and the inner diameter of the magnet 122 is larger than the outer diameter of the coil 1112, so that the magnet 122 will not affect the vibration of the coil 1112, thereby not affecting the effect of the speaker 10. The magnetic conductive plate 123 is sleeved on the outer periphery of the pre-assembly jig 20, and the inner diameter of the magnetic conductive plate 123 is larger than the outer diameter of the coil 1112, so that the magnet 122 will not affect the movement of the coil 1112. The magnetic plate 123 is provided with a collar 1231 on one side close to the magnet 122, and the inner diameter of the collar 1231 is greater than or equal to the inner diameter of the magnetic plate 123, so that the central axis of the magnet 122 and the central axis of the voice coil 111 are arranged in the same straight line. The magnetic circuit assembly 12 is a general technology and will not be described in detail here.

[0022] The pre-assembly jig 20 includes at least one mounting portion 21, at least one assembly portion 22 disposed below the mounting portion 21, and at least one insertion slot 23 disposed inside the assembly portion 22. The central axes of the mounting portion 21, the assembly portion 22, and the insertion slot 23 are located in the same straight line.

[0023] The mounting portion 21 includes at least one mounting portion body 211, a plurality of friction grooves 212 arranged on the outside of the mounting portion body 211, and at least one transition portion 213 connecting the mounting portion 21 and the assembly portion 22. The mounting portion 21 is used to be mounted to assist the assembly portion 22 in assembling the vibration sound group 11. It can be imagined that the mounting portion 21 uses a material with strong elasticity to facilitate the recovery of the mounting portion 21 after deformation. The outer cross-section of the mounting portion 21 in the arrangement direction of the mounting portion 21 and the assembly portion 22 is circular, and the outer diameter of the mounting portion body 211 is smaller than the outer diameter of the assembly portion 22, so as to facilitate gripping the mounting portion 21, making the installation of the vibration sound group 11 more convenient. The friction groove 212 is used to increase the friction force of the mounting portion 21, so that the mounting portion 21 is not easy to slip when gripping so as to apply force. In this embodiment, the shape of the friction groove 212 is set to be trapezoidal. The friction grooves 212 are equidistantly laid on the outer periphery of the mounting portion 21, and the spacing of the friction grooves 212 is determined according to the actual needs. The transition portion 213 is used to provide calibration for the installation of the vibration group 11, so that the vibration group 11 can be quickly mounted on the assembly portion 22, and the central axis of the vibration group 11 is set on the central axis of the assembly portion 22. Therefore, the outer surface of the transition portion 213 is inclined at equal angles to form a slope from the mounting portion 21 to the assembly portion 22. The user grasps the mounting portion 21 to deform it, and one end of the assembly portion 22 adjacent to the mounting portion 21 is deformed accordingly. The vibration group 11 is pushed from the mounting portion 21 to the assembly portion 22, and the vibration group 11 calibrates the central axis installation position through the transition portion 213, thereby reducing the time for the vibration group 11 to align with the port of the assembly portion 22, and also reducing the damage to the vibration group 11 during the installation process.

[0024] The positions of the assembly part 22 and the speaker 10 are relatively fixed. The assembly part 22 determines the position of the magnetic circuit group 12 by setting the insertion groove 23, thereby determining the position of the vibration sound group 11 on the assembly part 22. The assembly part 22 is in the shape of a tube, and the assembly part 22 is evenly arranged. The assembly part 22 uses a material with strong elasticity to facilitate the recovery of the assembly part 22 after deformation. The assembly part 22 includes at least one spring groove 221 arranged at one end of the assembly part 22 close to the mounting part 21. The vibration sound group 11 is assembled on the assembly part 22 through the voice coil 111. The voice coil 111 is in the shape of a circular tube, and the shape of the outer surface of the assembly part 22 on the cross section of the arrangement direction of the mounting part 21 and the assembly part 22 is circular. The assembly part 22 is used to assemble the vibration sound group 11, so that the central axis of each component of the vibration sound group 11 is in the same straight line with the central axis of the assembly part 22 during installation, so the outer diameter of the assembly part 22 is the same as the inner diameter of the vibration sound group 11. The spring groove 221 is arranged along the inner side wall of the assembling portion 22. A spring is arranged in the spring groove 221, and the spring groove 221 cooperates with the spring to restore the assembling portion 22 and the mounting portion 21 that are deformed to their original state.

[0025] The insertion slot 23 is arranged at one end of the assembly part 22 away from the mounting part 21. The insertion slot 23 includes at least one expansion slot 231. The magnetic conductive plate 123 and the magnet 122 are sleeved on the outer periphery of the assembly part 22 provided with the insertion slot 23. The magnetic conductive plate 123 is spaced apart from the magnet 122 and the assembly part 22 of the insertion slot 23. The T-iron 121 is inserted in the insertion slot 23, and the diameter of the insertion slot 23 is equal to the outer diameter of the round tube on the T-iron 121. The insertion slot 23 is used to insert the round tube of the T-iron 121, so that the central axis of the magnetic circuit group 12 and the insertion slot 23 are arranged in the same straight line, and then the central axis of the magnetic circuit group 12 and the vibration sound group 11 are arranged in the same straight line. The expansion slot 231 includes at least one expansion part 2311 and at least one contraction part 2312 connected to the expansion part 2311. The expansion portion 2311 is rectangular and arranged on the mounting portion 21 and the assembly portion 22 in the arrangement direction. The contraction portion 2312 is circular and arranged on the mounting portion 21. The expansion portion 2311 is used to contract so that the combined portion between the insertion portion and the magnetic circuit assembly 12 is enlarged, so that the magnetic circuit assembly 12 can be easily inserted into the insertion slot 23. The contraction portion 2312 drives the expansion portion 2311 to restore its original shape when deformed.

[0026] When pre-installing the speaker 10, the voice coil 111, the paper cone 112, the damper 113, and the basin frame 114 are inserted into the mounting portion 21, the mounting portion 21 is squeezed, and the voice coil 111, the paper cone 112, the damper 113, and the basin frame 114 are pushed to the assembly portion 23 through the transition portion 213, and assembled on the assembly portion 23 in sequence. The magnetic conductive plate 123, the magnet 122, and the T-iron 121 are assembled to form the magnetic circuit group 12. The magnetic circuit group 12 is inserted into the insertion groove 23 through the T-iron 121. The vibration group 11 is moved so that it is attached to the magnetic circuit group 12. The basin frame 114 and the magnetic conductive plate 123 are fixed with fixings to complete the pre-installation. Pull out the pre-installed components to complete the installation.

[0027] Compared with the prior art, the utility model provides a pre-assembly structure for reducing the speaker assembly error by setting the mounting portion 21, so that the vibration sound group 11 can be quickly mounted on the assembly portion 22, and the central axis of the vibration sound group 11 is set on the central axis of the assembly portion 22. The assembly portion 22 is evenly arranged and the outer diameter of the assembly portion 22 is the same as the inner diameter of the vibration sound group 11, so that the central axis of each component of the vibration sound group 11 and the central axis of the assembly portion 22 are in the same straight line during installation. The insertion groove 23 is used to insert the round tube of the T iron 121, so that the central axis of the magnetic circuit group 12 and the insertion groove 23 are arranged in the same straight line, and then the central axis of the magnetic circuit group 12 and the vibration sound group 11 are arranged in the same straight line.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A pre-assembled structure for reducing speaker assembly errors, characterized in that: The pre-assembly structure for reducing the speaker assembly error includes at least one speaker and at least one pre-assembly jig for pre-installing the speaker. The speaker includes at least one vibration sound group sleeved on the pre-assembly jig and at least one magnetic circuit group inserted in the pre-assembly jig. The vibration sound group includes at least one voice coil sleeved on the outer periphery of the pre-assembly jig. The magnetic circuit group includes at least one T-iron inserted in the pre-assembly jig. The pre-assembly jig includes at least one mounting portion, at least one assembly portion arranged below the mounting portion, and at least one insertion groove arranged inside the assembly portion. The central axes of the mounting portion, the assembly portion, and the insertion groove are in the same straight line. The mounting portion is used to sleeve the vibration sound group. The vibration sound group is assembled on the assembly portion through the voice coil. The central axes of the components of the vibration sound group are in the same straight line with the central axis of the assembly portion. The insertion groove is arranged at one end of the assembly portion away from the mounting portion. The T-iron is inserted in the insertion groove. The insertion groove arranges the central axes of the magnetic circuit group and the vibration sound group in the same straight line.

2. The pre-assembled structure for reducing speaker assembly error according to claim 1, characterized in that: The vibration sound group also includes at least one paper cone arranged at one end of the voice coil, at least one spring wave installed on the outer periphery of the voice coil and below the paper cone, and at least one basin frame fixedly arranged on the outer edge of the paper cone and the spring wave. The voice coil includes at least one voice coil frame and at least one coil sleeved on the outer periphery of the voice coil frame. The voice coil frame is arranged in the vibration sound group and the magnetic circuit group, and the coil is sleeved below the spring wave.

3. The pre-assembled structure for reducing speaker assembly error according to claim 1, characterized in that: The magnetic circuit assembly further includes at least one magnet disposed above the T-iron and at least one magnetic conductive plate disposed above the magnet. The magnet is sleeved outside the pre-assembled fixture, and the magnetic conductive plate is sleeved around the periphery of the pre-assembled fixture.

4. The pre-assembled structure for reducing speaker assembly error as claimed in claim 3, characterized in that: A clamping ring is provided on one side of the magnetic conductive plate close to the magnet, and the inner diameter of the clamping ring is greater than or equal to the inner diameter of the magnetic conductive plate.

5. The pre-assembled structure for reducing speaker assembly error according to claim 1, characterized in that: The mounting portion includes at least one mounting portion body, a plurality of friction grooves arranged on the outside of the mounting portion body, and at least one transition portion connecting the mounting portion and the assembling portion.

6. The pre-assembled structure for reducing speaker assembly error according to claim 5, characterized in that: The outer surface of the transition portion is inclined at an equal angle to form a slope from the installation portion to the assembly portion.

7. The pre-assembled structure for reducing speaker assembly error according to claim 1, characterized in that: The assembling portion comprises at least one spring groove arranged at one end of the assembling portion close to the mounting portion, and the spring groove is arranged along the inner side wall of the assembling portion.

8. The pre-assembled structure for reducing speaker assembly error as claimed in claim 1, characterized in that: The insertion slot includes at least one expansion slot, and the expansion slot includes at least one expansion portion and at least one contraction portion connected to the expansion portion. The expansion portion is rectangular and arranged along the arrangement direction of the mounting portion and the assembling portion, and the contraction portion is circular and arranged on the mounting portion.

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