Small portable tape player with better sound effect

Abstract

The utility model discloses a small portable tape player with better sound effect, which comprises a main shell, a front cover, a loudspeaker and a playing component, an inner cavity and an outer cavity are arranged on the back of the main shell, the inner cavity is sleeved in the outer cavity, the inner cavity is enclosed by a circle of enclosure ring, the outer cavity is enclosed by an enclosure plate, and a circle of support ring is arranged in the inner cavity; a circle of abutting ring is arranged at the position, surrounding the vibrating diaphragm, of the front end of the loudspeaker, the loudspeaker is installed in the inner cavity in a forward posture, and the abutting ring abuts against the supporting ring. A back cover is installed behind the main shell to seal the loudspeaker in the outer cavity, and the front face of the main shell and the position, aligned with the inner cavity, of the front cover are respectively provided with sound outlet holes. Therefore, the loudspeaker with a larger size can be accommodated, the sound and sound field breadth can be increased, and the acoustic effect is improved. And meanwhile, the loudspeaker is mounted by designing the inner and outer nested cavities in the main shell, so that the sound effect can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of audio playback devices, in particular to a small portable tape player. Background Art

[0002] Cassette players have long been widely used, and small portable cassette players are popular among users for their compact size, light weight, portability, and ease of use. Due to their small size, particularly their thickness of only four or five centimeters, traditional small portable cassette players typically mount their speakers on a cardan. For example, Chinese utility model patent CN210535354U discloses a cardan bracket with a circular speaker opening for mounting the speaker. This structure limits the thickness of the speaker, typically requiring ultra-thin speakers (typically less than 7mm thick). However, these ultra-thin speakers offer suboptimal sound quality, with low volume and a narrow soundstage. Furthermore, this mounting structure makes it difficult to design an acoustic cavity of sufficient depth, further impacting the acoustic performance of small portable cassette players. Utility Model Content

[0003] The utility model aims to solve the defects of the prior art and provides a small portable tape player which has a more reasonable structural design and can be equipped with a larger-sized speaker to improve the acoustic effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a small portable tape player with better sound effect, comprising a main shell, a front cover, a speaker and a playback component, the front cover is installed on the front of the main shell, and is characterized in that: two inner and outer cavities are provided on the back of the main shell, the inner cavity is inserted in the outer cavity, the inner cavity is surrounded by a circle of surrounding rings, and the outer cavity is surrounded by surrounding partitions; a circle of supporting rings is provided in the inner cavity, the supporting rings are close to the surrounding rings but not in contact with each other; a circle of abutting rings is provided at the front end of the speaker surrounding the diaphragm, the speaker is installed in the inner cavity in a forward posture, and the abutting ring and the support ring abut against each other; a back cover is installed at the rear of the main shell to enclose the speaker in the outer cavity, and sound holes are respectively provided on the front of the main shell and at the position where the front cover is aligned with the inner cavity.

[0005] Furthermore, the diameter of the speaker is 30-50 mm and the thickness is 15-25 mm.

[0006] Furthermore, the inner cavity and the outer cavity are arranged near a corner of the main shell, and the outer cavity is formed by a partition plate and two adjacent sides of the main shell, and the partition plate and the partition ring are an integral structure with the main shell.

[0007] Furthermore, a spacer ring for enclosing the inner cavity is docked with the spacer plate, and the inner cavity is enclosed by the spacer ring and the spacer plate together.

[0008] Furthermore, a support column is provided on the inner side of the back cover, and the rear end surface of the speaker is supported by the support column, so that the speaker is fastened in the inner cavity.

[0009] Furthermore, the sound holes on the main shell are thin circular sound mesh holes, and the sound holes on the front cover are grid-shaped sound strip holes.

[0010] Furthermore, a decorative grid is provided on the front surface of the front cover, and the decorative grid and the sound strip-shaped holes are aligned with each other and communicated with each other to form an integral decorative stripe.

[0011] This invention provides speaker mounting locations within the main housing to accommodate larger speakers. For example, a common small cassette player can accommodate a speaker with a diameter of 36mm and a height of 19mm, significantly larger than conventional ultra-thin speakers of the same type. This increases the sound volume and sound field width, improving acoustics. Furthermore, by designing internal and external nested cavities within the main housing to accommodate the speakers, sound quality is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model after the front cover is removed;

[0015] Figure 4 This is a schematic diagram of the structure of the utility model after the back cover is removed;

[0016] Figure 5 This is a schematic diagram of the structure of the utility model after removing the back cover and the speaker;

[0017] Figure 6 This is a schematic diagram of the structure of the utility model after the front cover and the main shell are removed.

[0018] In the figure, 1 is the main shell, 11 is the sound mesh, 12 is the partition plate, 13 is the partition ring, 14 is the support ring, 2 is the front cover, 21 is the sound strip hole, 22 is the decorative grid, 3 is the back cover, 31 is the support column, 4 is the speaker, 41 is the abutment ring, 5 is the outer cavity, and 6 is the inner cavity. DETAILED DESCRIPTION

[0019] In this embodiment, refer to Figures 1-6The small portable tape player with better sound quality includes a main shell 1, a front cover 2, a speaker 4 and a playback component (not shown). The front cover 2 is installed on the front of the main shell 1 to cover the tape; two inner and outer cavities are set on the back of the main shell 1, and the inner cavity 6 is inserted into the outer cavity 5 to form a resonance cavity. Of course, this structure is also used in some larger players. The inner cavity 6 is surrounded by a circle of spacer rings 13, and the outer cavity 5 is surrounded by a spacer plate 12; a circle of support rings 14 is arranged in the inner cavity 6, and the support ring 14 is close to the spacer ring 13 but not in contact with it, which can weaken the vibration to a certain extent; a circle of abutment rings 41 is provided at the front end of the speaker 4 around the diaphragm, and the speaker 4 is installed in the inner cavity 6 in a forward posture. The abutment ring 41 abuts against the support ring 14, which can prevent the diaphragm from contacting the main shell 1 and affecting the sound; a back cover 3 is installed at the rear of the main shell 1 to enclose the speaker 4 in the outer cavity 5, and sound holes are respectively provided on the front of the main shell 1 and the position of the front cover 2 aligned with the inner cavity 6.

[0020] The diameter of the speaker 4 is 30-50 mm, such as 36 mm, and the thickness is 15-25 mm, such as 19 mm. This speaker is more than twice as thick as the traditional 7 mm thick ultra-thin speaker, so the volume is louder and the sound is more resonant.

[0021] The inner cavity 6 and the outer cavity 5 are arranged near a corner of the main shell 1 (next to the tape cavity), and the outer cavity 5 is separated from the two adjacent sides of the main shell 1 by a partition plate 12. The partition plate 12 and the partition ring 13 are an integral structure with the main shell 1 and are formed as one piece by injection molding.

[0022] The enclosing ring 13 for enclosing the inner cavity 6 is docked with the enclosing plate 12 , and the inner cavity 6 is enclosed by the enclosing ring 13 and the enclosing plate 12 .

[0023] A support column 31 is provided on the inner side of the back cover 3 , and the support column 31 is pressed against the rear end surface of the speaker 4 , so that the speaker 4 is fastened in the inner cavity 6 .

[0024] The sound holes on the main shell 1 are thin circular sound mesh holes 11 , and the sound holes on the front cover 2 are grid-shaped sound strip holes 21 .

[0025] A decorative grid 22 is provided on the front surface of the front cover 2 . The decorative grid 22 and the sound strip holes 21 are aligned with each other and communicate with each other to form an integral decorative stripe.

[0026] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present application. That is, all equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present invention.

Claims

1. A small portable tape player with better sound quality, comprising a main housing, a front cover, a speaker, and a playback assembly, wherein the front cover is mounted on the front of the main housing, and characterized by: Two inner and outer cavities are provided on the back of the main shell, the inner cavity is inserted in the outer cavity, the inner cavity is surrounded by a circle of spacer rings, and the outer cavity is surrounded by a spacer plate; a circle of support rings is provided in the inner cavity, and the support rings are close to the spacer rings but not in contact with them; a circle of abutment rings is provided at the front end of the speaker surrounding the diaphragm, and the speaker is installed in the inner cavity in a forward posture, and the abutment rings and the support rings abut against each other; a back cover is installed at the rear of the main shell to enclose the speaker in the outer cavity, and sound holes are respectively provided on the front of the main shell and the position of the front cover aligned with the inner cavity.

2. The small portable tape player with better sound quality according to claim 1, characterized in that: The diameter of the speaker is 30-50 mm and the thickness is 15-25 mm.

3. The small portable tape player with better sound quality according to claim 1, characterized in that: The inner cavity and the outer cavity are arranged near a corner of the main shell. The outer cavity is formed by a partition plate and two adjacent sides of the main shell. The partition plate and the partition ring are an integral structure with the main shell.

4. The small portable tape player with better sound quality according to claim 1 or 3, characterized in that: The enclosing ring used for enclosing the inner cavity is docked with the enclosing plate, and the inner cavity is enclosed by the enclosing ring and the enclosing plate together.

5. The small portable tape player with better sound quality according to claim 1, characterized in that: A support column is provided on the inner side of the back cover, and the rear end surface of the speaker is supported by the support column.

6. The small portable tape player with better sound quality according to claim 1, characterized in that: The sound holes on the main shell are thin circular sound mesh holes, and the sound holes on the front cover are grid-shaped sound strip holes.

7. The small portable tape player with better sound quality according to claim 6, characterized in that: A decorative grid is arranged on the front surface of the front cover, and the decorative grid and the sound outlet strip hole are aligned with each other and communicated with each other.

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