Loudspeaker capable of improving sensitivity
By installing an aluminum ring between the magnet of the speaker and the cylinder, the problem of poor sensitivity of existing speakers in high frequencies is solved, and the expansion of high-frequency response and the improvement of sensitivity is achieved.
Patent Information
- Application Number
- CN202422224237.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing speakers have poor sensitivity in high frequencies and cannot effectively expand high-frequency response.
Install an aluminum ring between the speaker's magnet and the cylinder. The aluminum ring can play a short circuit, improve the sensitivity of high-frequency and expand the speaker's high-frequency response.
By installing an aluminum ring, the sensitivity of the speaker in the high frequency range is significantly improved, which expands the high frequency response, and greatly increases the loudness of the sound in the high frequency range.
Smart Images
Figure CN223024569U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of loudspeakers, and particularly relates to a loudspeaker with improved sensitivity. Background Art
[0002] In most of the existing loudspeakers, when the copper wire on the voice coil is energized, the generated magnetic field cooperates with the magnet inside the loudspeaker, so that the voice coil drives the spider and the diaphragm to move synchronously to generate various sounds. However, the loudspeakers with the above structure have some defects in use: for example, the sensitivity is not good in the high frequency range. Summary of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a loudspeaker with improved sensitivity, which aims to solve the problem that the sensitivity of the loudspeaker with conventional design in the prior art is not good in the high frequency range.
[0005] (2) Technical Solutions
[0006] To solve the above technical problems, the utility model provides such a loudspeaker with improved sensitivity, which includes a chassis, a washer, a magnet and a T-iron. The washer is fixedly connected to the bottom of the chassis. The magnet is sleeved on the T-iron, and the top of the magnet is fixedly connected to the bottom of the washer. An aluminum ring is arranged between the T-iron and the magnet. A voice coil is arranged between the T-iron and the washer. The bent part of the chassis is fixedly connected with a spider, the top of the chassis is fixedly connected with a diaphragm, and the middle part of the diaphragm is fixedly connected with a dust cap.
[0007] Preferably, the T-iron includes a circular ring and a cylinder fixedly connected to the inner wall of the circular ring. The magnet is sleeved outside the cylinder, and the bottom of the magnet is fixedly connected to the circular ring.
[0008] Further, there is a first gap between the inner wall of the magnet and the outer wall of the cylinder. The aluminum ring is sleeved on the cylinder, and the aluminum ring is located inside the first gap, and the aluminum ring is not in contact with the magnet and the cylinder.
[0009] Furthermore, the washer is sleeved on the cylinder. There is a second gap between the inner wall of the washer and the outer wall of the cylinder. The voice coil is sleeved on the cylinder, and the voice coil is located inside the second gap, and the voice coil is not in contact with the washer and the cylinder.
[0010] Furthermore, the top of the aluminum ring is fixedly connected to the bottom of the washer, and there is a gap between the aluminum ring and the circular ring.
[0011] Furthermore, terminal plates are fixedly connected to both the left and right sides of the chassis.
[0012] Furthermore, a through hole for the voice coil to pass through is provided in the middle of the diaphragm, and the inner wall of the diaphragm is fixedly connected to the voice coil, and the inner wall of the middle of the vibrating diaphragm is fixedly connected to the outer wall of the top of the voice coil.
[0013] Advantageous Effects
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] In the present utility model, the copper wire on the voice coil is connected to the power supply through the terminal board to supply power to the voice coil. After the voice coil is energized, a magnetic field is formed. Under the action of the magnetic field and the magnet, the voice coil makes a reciprocating motion through the magnetic field, and the voice coil drives the diaphragm and the vibrating diaphragm to vibrate and emit sound during the movement. Since an aluminum ring is installed between the magnet and the cylinder, the aluminum ring can play a role in short-circuiting, which can improve the high-frequency sensitivity and expand the high-frequency response of the speaker. Description of the Drawings
[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.
[0017] Figure 2 is a bottom view schematic diagram of the present utility model.
[0018] Figure 3 is a cross-sectional schematic diagram of the present utility model.
[0019] Figure 4 is a three-dimensional cross-sectional structural schematic diagram of the present utility model.
[0020] Figure 5 is the Figure 3 enlarged schematic diagram of the structure at A in the present utility model.
[0021] Figure 6 is a schematic diagram of the test results of the speaker sensitivity of the present utility model.
[0022] The reference signs in the drawings are: 1, chassis; 2, washer; 3, magnet; 4, T-iron; 5, aluminum ring; 6, voice coil; 7, diaphragm; 8, vibrating diaphragm; 9, dust cap; 10, terminal board; 41, circular ring; 42, cylinder. Specific Embodiments
[0023] This specific embodiment is a speaker for improving sensitivity, and its structural schematic diagram is as Figures 1-5As shown, the loudspeaker includes a chassis 1, a washer 2, a magnet 3, and a pole piece 4. The washer 2 is fixedly connected to the bottom of the chassis 1. The magnet 3 is sleeved on the pole piece 4, and the top of the magnet 3 is fixedly connected to the bottom of the washer 2. An aluminum ring 5 is provided between the pole piece 4 and the magnet 3, and a voice coil 6 is provided between the pole piece 4 and the washer 2. A spider 7 is fixedly connected to the bent portion of the chassis 1. A diaphragm 8 is fixedly connected to the top of the chassis 1. A dust cap 9 is fixedly connected to the middle of the diaphragm 8. Terminal plates 10 are fixedly connected to both the left and right sides of the chassis 1. A through hole for the voice coil 6 to pass through is provided in the middle of the spider 7, and the inner wall of the spider 7 is fixedly connected to the voice coil 6. The inner wall of the middle of the diaphragm 8 is fixedly connected to the outer wall of the top of the voice coil 6;
[0024] The copper wire on the voice coil 6 is connected to the power supply through the terminal plate 10 to connect the power supply to the voice coil 6, so that the power supply supplies power to the voice coil 6. After the voice coil 6 is energized, a magnetic field is formed. Under the action of the magnetic field and the magnet 3, the voice coil 6 makes a reciprocating motion through the magnetic field, and the voice coil 6 drives the spider 7 and the diaphragm 8 to vibrate and emit sound during the movement.
[0025] Among them, the pole piece 4 includes a circular ring 41 and a cylinder 42 fixedly connected to the inner wall of the circular ring 41. The magnet 3 is sleeved on the outside of the cylinder 42, and the bottom of the magnet 3 is fixedly connected to the circular ring 41.
[0026] In addition, the washer 2 is sleeved on the cylinder 42, and a second gap is left between the inner wall of the washer 2 and the outer wall of the cylinder 42. The voice coil 6 is sleeved on the cylinder 42, and the voice coil 6 is located inside the second gap, and the voice coil 6 is not in contact with the washer 2 and the cylinder 42.
[0027] In addition, a first gap is left between the inner wall of the magnet 3 and the outer wall of the cylinder 42. The aluminum ring 5 is sleeved on the cylinder 42, and the aluminum ring 5 is located inside the first gap. The aluminum ring 5 is not in contact with the magnet 3 and the cylinder 42. The top of the aluminum ring 5 is fixedly connected to the bottom of the washer 2, and a gap is left between the aluminum ring 5 and the circular ring 41. Installing the aluminum ring 5 between the magnet 3 and the cylinder 42 can play a role in short - circuiting, can improve the high - frequency sensitivity, and expand the high - frequency response of the loudspeaker.
[0028] At the same time, sensitivity tests were carried out on the loudspeaker with the conventional design without the aluminum ring 5 and the loudspeaker with the special design with the aluminum ring 5 added in this application. The results are shown in Table 1 and Figure 6 as shown, where Figure 6 the vertical coordinate in is the loudness of the sound, and the unit is decibel, Figure 6 and the horizontal coordinate in is the frequency, and the unit is hertz.
[0029] Table 1
[0030]
[0031] Through Table 1 and Figure 6It can be seen that at low frequencies, the sound loudness of the conventional design with or without the aluminum ring 5 is comparable to that of the special design with the aluminum ring 5 in this application. However, as the frequency increases beyond 100 Hz, the sound loudness of the special design with the aluminum ring 5 in this application is greater than that of the conventional design. At the same time, according to the fact that the higher the sensitivity, the louder the sound emitted by the speaker when a certain power is fed in, it can be known that the sensitivity of the speaker in this application increases in the high frequency after adding the aluminum ring 5.
[0032] Working principle: Connect the copper wire on the voice coil 6 to the power supply through the terminal board 10 to supply power to the voice coil 6. After the voice coil 6 is energized, a magnetic field is formed. Under the action of the magnetic field and the magnet 3, the voice coil 6 makes a reciprocating motion through the magnetic field, and the voice coil 6 drives the flexure 7 and the diaphragm 8 to vibrate and emit sound during the movement. Since the aluminum ring 5 is installed between the magnet 3 and the cylinder 42, the aluminum ring 5 can play a role in short circuit, improve the sensitivity of high frequency, and expand the high frequency response of the speaker.
[0033] All technical features in this embodiment can be freely combined according to actual needs.
[0034] The above embodiment is a preferred implementation scheme of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.
Claims
1. A loudspeaker with improved sensitivity, comprising a basin frame (1), a washer (2), a magnet (3) and a T-iron (4), characterized in that: The washer (2) is fixedly connected to the bottom of the basin frame (1); the magnet (3) is sleeved on the T-iron (4), and the top of the magnet (3) is fixedly connected to the bottom of the washer (2); an aluminum ring (5) is arranged between the T-iron (4) and the magnet (3); a voice coil (6) is arranged between the T-iron (4) and the washer (2); a spring (7) is fixedly connected to the bent portion of the basin frame (1); a diaphragm (8) is fixedly connected to the top of the basin frame (1); and a dust cap (9) is fixedly connected to the middle of the diaphragm (8).
2. The loudspeaker with improved sensitivity according to claim 1, characterized in that: The T-iron (4) comprises a circular ring (41) and a cylinder (42) fixedly connected to the inner wall of the circular ring (41); the magnet (3) is sleeved on the outside of the cylinder (42), and the bottom of the magnet (3) is fixedly connected to the circular ring (41).
3. The loudspeaker with improved sensitivity according to claim 2, characterized in that: A first gap is left between the inner wall of the magnet (3) and the outer wall of the cylinder (42); the aluminum ring (5) is sleeved on the cylinder (42), and the aluminum ring (5) is located inside the first gap; the aluminum ring (5) is not in contact with either the magnet (3) or the cylinder (42).
4. The loudspeaker with improved sensitivity according to claim 2, characterized in that: The washer (2) is sleeved on the cylinder (42), a second gap is left between the inner wall of the washer (2) and the outer wall of the cylinder (42), the voice coil (6) is sleeved on the cylinder (42), and the voice coil (6) is located inside the second gap, and the voice coil (6) is not in contact with the washer (2) and the cylinder (42).
5. The loudspeaker with improved sensitivity according to claim 3, characterized in that: The top of the aluminum ring (5) is fixedly connected to the bottom of the washer (2), and a gap is left between the aluminum ring (5) and the circular ring (41).
6. The loudspeaker with improved sensitivity according to claim 1, characterized in that: Terminal plates (10) are fixedly connected to both left and right sides of the basin frame (1).
7. The loudspeaker with improved sensitivity according to claim 1, characterized in that: A through hole for the voice coil (6) to pass through is opened in the middle of the elastic wave (7), and the inner wall of the elastic wave (7) is fixedly connected to the voice coil (6), and the middle inner wall of the diaphragm (8) is fixedly connected to the top outer wall of the voice coil (6).