A TPU sound box shell

By covering the speaker's inner frame with a TPU shell, the problems of poor grip and drop resistance of hard plastic speakers are solved, resulting in a soft, drop-resistant, shockproof, and customizable speaker shell design.

CN224343311UActive Publication Date: 2026-06-09DONGGUAN DINGZHI POLYMER MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DINGZHI POLYMER MATERIALS CO LTD
Filing Date
2025-04-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing speaker casings are typically made of hard plastic, which makes them uncomfortable to hold, not resistant to drops and impacts, and lacks personalized design.

Method used

The frame is covered with a TPU shell, combined with a soft and elastic material to enhance shock absorption, and the color can be changed by adjusting the TPU additives to add a personalized touch.

Benefits of technology

The speaker's drop and shock resistance has been improved, the grip has been enhanced, and the shell color can be adjusted as needed to add a personalized design.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224343311U_ABST
    Figure CN224343311U_ABST
Patent Text Reader

Abstract

The utility model belongs to battery loading tool technical field especially relates to a TPU sound box casing, including middle frame and shell, the shell is covered in the outside of middle frame, the shell includes enclosure and covering part, the enclosure and the covering part are integrally formed, the middle frame is equipped with first through -hole and second through -hole, the enclosure is located the outside of middle frame, the covering part is bonded on first through -hole, the shell is made of elastic material. This kind of TPU sound box casing is through the soft elasticity TPU shell of setting up in the middle frame outside covering, is used for protecting middle frame and internal spare part, sets up TPU covering part on the first through -hole of placing the loudspeaker, is used for the gasket loudspeaker, can avoid loudspeaker and hard plastic middle frame directly contact, reduces the damage when using, can simultaneously as shock pad absorb unnecessary vibration friction, improves the tone quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of speaker technology, and in particular relates to a TPU speaker shell. Background Technology

[0002] A speaker is a device that converts audio signals into sound. Simply put, it refers to a speaker enclosure or subwoofer enclosure with a built-in power amplifier that amplifies the audio signal before it is played back by the speaker itself, making the sound louder. Speakers have become a common entertainment device for modern people, but their casings are usually made of hard plastic, which makes them uncomfortable to hold, not durable, and lacks a distinctive, minimalist design. Utility Model Content

[0003] The purpose of this utility model is to provide a TPU speaker shell to address the shortcomings of existing technology. This shell consists of a plastic inner frame with an added TPU outer shell. The TPU outer shell is soft and elastic, effectively protecting the inner frame and internal parts. It is not afraid of drops or impacts, has a good hand feel, and the color of the shell can be adjusted as needed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A TPU speaker enclosure includes a middle frame and an outer shell. The outer shell covers the outside of the middle frame and includes an enclosure portion and a covering portion. The enclosure portion and the covering portion are integrally formed. The middle frame has a first through hole and a second through hole. The enclosure portion is located on the outer side of the middle frame, and the covering portion is fitted onto the first through hole. The outer shell is made of an elastic material. The elastic material of the outer shell wraps around the four sides of the middle frame. The enclosure portion protects the internal structure of the speaker, while the covering portion fits onto the outside of the first through hole. The first through hole is used to install a speaker for amplification. The flexible covering portion, positioned between the speaker and the middle frame, serves to absorb shock and energy.

[0006] Preferably, the middle frame is made of rigid plastic, and the outer shell is made of TPU and covers the outside of the middle frame. This TPU outer shell is soft to the touch, shockproof and drop-resistant, provides a non-slip grip, and allows for color customization by adjusting TPU additives.

[0007] Preferably, the outer casing has several function buttons protruding outwards. Different functions of the speaker are set by pressing these function buttons. The middle frame has internal through holes corresponding to the function buttons.

[0008] Preferably, the outer casing is provided with an indicator light hole to display the speaker's playback function. The indicator light hole can be a small hole penetrating the outer casing or a thinned recessed hole.

[0009] Preferably, the middle frame has a recessed portion, and the outer shell fits inward into the recessed portion.

[0010] Preferably, the outer casing is recessed inward to provide a charging port, which includes an AUX port and a DC port. The charging port is located in the recess and is used for charging the speaker and transmitting data.

[0011] Preferably, the outer shell has an inwardly recessed hanging rope portion, which is located within the recessed portion to fasten the hanging rope for easy carrying.

[0012] Preferably, the outer casing is provided with parallel pads, and each end of the pads is provided with a foot to stabilize the speaker and reduce speaker vibration during power amplification.

[0013] Preferably, the cover is provided with a fixing hole, and the middle frame is provided with a fixing guide post corresponding to the fixing hole, so as to tightly attach the cover to the first through hole.

[0014] Preferably, the cover has a positioning notch to facilitate fixing the loudspeaker in the first through hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The TPU speaker shell provided by this utility model has a soft and elastic TPU shell covering the middle frame to protect the middle frame and internal components. A TPU covering part is provided on the first through hole for placing the speaker to pad the speaker. This can not only avoid direct contact between the speaker and the hard plastic middle frame, reducing damage during use, but also act as a shock absorber to absorb unnecessary vibration and friction, thereby improving sound quality. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the back structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure above this utility model.

[0019] Figure 4 This is a schematic diagram of the bottom structure of this utility model.

[0020] Figure 5 This is a side view of the structure of this utility model.

[0021] Figure label:

[0022] 1. Middle frame; 11. First through hole; 12. Second through hole; 13. Recessed part; 14. Fixing guide post;

[0023] 2. Outer shell, 21. Enclosure, 22. Cover, 221. Fixing hole, 222. Positioning notch, 23. Function button, 24. Indicator light hole, 25. Charging port, 26. Hanging cord, 27. Pad strip, 28. Foot pad. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figure 1-5 As shown, a TPU speaker enclosure includes a middle frame 1 and an outer shell 2. The outer shell 2 covers the outside of the middle frame 1 and includes an enclosure portion 21 and a covering portion 22. The enclosure portion 21 and the covering portion 22 are integrally formed. The middle frame 1 has a first through hole 11 and a second through hole 12. The enclosure portion 21 is located on the outside of the middle frame 1, and the covering portion 22 is attached to the first through hole 11. The outer shell 2 is made of an elastic material. The elastic material of the outer shell 2 wraps around the four sides of the middle frame 1, and the enclosure portion 21 protects the internal structure of the speaker. The covering portion 22 is attached to the outside of the first through hole 11, which is used to install a speaker for amplification. The soft covering portion 22 is placed between the speaker and the middle frame 1, which plays a role in shock absorption and energy absorption.

[0026] Furthermore, the middle frame 1 is made of rigid plastic, and the outer shell 2 is made of TPU and covers the outside of the middle frame 1. The TPU outer shell 2 is soft to the touch, shockproof and drop-resistant, non-slip and not easy to slip from the hand, and the color of the outer shell 2 can be changed by adjusting the TPU additives to add a personalized touch.

[0027] Furthermore, several function buttons 23 protrude outwards from the outer casing 2. Different functions of the speaker are set by pressing the function buttons 23. Internal through holes corresponding to the function buttons 23 are provided inside the middle frame 1.

[0028] Furthermore, the outer casing 2 is provided with an indicator light hole 24 to display the speaker's playback function. The indicator light hole 24 can be a small hole that passes through the outer casing 2, or it can be a thinned recessed hole.

[0029] Furthermore, the middle frame 1 is provided with a recess 13, and the outer shell 2 is fitted inward into the recess 13.

[0030] Furthermore, a charging port 25 is recessed inward on the outer casing 2. The charging port 25 includes an AUX port and a DC port. The charging port 25 is located in the recessed portion 13 and is used for charging the speaker and transmitting data.

[0031] Furthermore, a hanging rope portion 26 is recessed inward on the outer shell 2. The hanging rope portion 26 is located in the recessed portion 13 and is used to fasten the hanging rope for easy carrying.

[0032] Preferably, the outer casing 2 is provided with parallel pads 27, and each end of the pad 27 is provided with a foot 28, which is used to stabilize the speaker as a whole and reduce the vibration of the speaker when the power amplifier is running.

[0033] Furthermore, the middle frame 1 is provided with a fixing guide post 14 corresponding to the fixing hole 221, which is used to tightly attach the cover part 22 to the first through hole 11. The cover part 22 can be attached to the first through hole 11 by passing a fixing pin or the like through the fixing hole 221 and the fixing guide post 14.

[0034] Furthermore, the cover 22 is provided with a positioning notch 222 to facilitate fixing the loudspeaker in the first through hole 11.

[0035] In terms of overall structure, after installing various components inside the TPU speaker shell, front and rear shells must be added to the front and back. When the speaker is in use, different playback functions are switched by pressing the function button 23, such as power on / off, Bluetooth connection, volume adjustment, play, and pause. The indicator lights in the indicator hole 24 show the different function states. When the speaker is placed on a flat surface, the pads 27 and feet 28 stabilize the speaker body. The PTU material feet 28 increase friction with the surface, preventing the speaker from tipping over or falling due to vibrations during playback. Alternatively, when carrying it, a rope can be threaded through the lanyard 26 to hang it in any position.

[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A TPU speaker housing, characterized in that: The device includes a middle frame and an outer shell. The outer shell covers the outside of the middle frame. The outer shell includes an enclosure and a covering. The enclosure and the covering are integrally formed. The middle frame has a first through hole and a second through hole. The enclosure is located on the outside of the middle frame. The covering is attached to the first through hole. The outer shell is made of an elastic material.

2. The TPU speaker housing according to claim 1, characterized in that: The middle frame is made of rigid plastic, and the outer shell is made of TPU and covers the outside of the middle frame.

3. The TPU speaker housing according to claim 1, characterized in that: The outer casing has several function buttons protruding outwards.

4. The TPU speaker housing according to claim 1, characterized in that: The outer casing is provided with indicator light holes.

5. The TPU speaker housing according to claim 1, characterized in that: The middle frame has a recessed portion, and the outer shell fits inward into the recessed portion.

6. The TPU speaker housing according to claim 5, characterized in that: The outer casing is recessed inward to provide a charging port, which includes an AUX port and a DC port, and the charging port is located in the recess.

7. The TPU speaker housing according to claim 5, characterized in that: The outer shell has an inwardly recessed hanging rope portion, which is located within the recessed portion.

8. The TPU speaker housing according to claim 1, characterized in that: The outer casing is provided with pads arranged side by side, and each pad has a foot at both ends.

9. The TPU speaker housing according to claim 1, characterized in that: The cover is provided with fixing holes, and the middle frame is provided with fixing guide posts corresponding to the fixing holes.

10. The TPU speaker housing according to claim 1, characterized in that: The cover has a positioning notch.