JP3129385U - Speaker tray frame - Google Patents

Abstract

A speaker tray frame that is manufactured mainly from a thermosetting synthetic material and is less likely to cause distortion and shift of sound by a resonance method.
A tray-type frame 1 is mainly formed of a thermosetting synthetic material such as TMC, SMC, BMC or the like. The frame includes a front plate 10 having a relatively large diameter and a rear plate 20 having a relatively small diameter, and a weight-like support frame 26 is formed between the front and rear plates. The front plate supports the outer periphery of the vibration tray cover 11, and the rear plate is used for the sound generating magnetoelectric device 21. In this way, it is possible to make it difficult to generate distortion and deviation of sound by the resonance method.
[Selection] Figure 1

Description

  The present invention relates to a kind of tray frame. In particular, it relates to a speaker tray frame made of a kind of thermosetting material.

The speaker is also called a loudspeaker, and mainly uses the strength of the current, and the coil of the speaker alone attracts and separates the magnet, generates a magnetic field reaction and emits sound. In other words, the speaker converts an electrical energy signal into an audio energy signal through the above method.
However, the larger the mass of the magnet used by a known speaker, the greater the strength of the magnetic field emitted, and the heavier the speaker quality, the greater the required power, and the more The resonance (resonance) also becomes larger. These resonances (resonances) cancel out the power, and are freely conducted to the entire speaker support plate or speaker box. As a result, the speaker often causes distortion or unevenness of the audio signal in the playback section of 20 Hz to 20000 Hz.

  The disadvantages of the speakers already existed when they were manufactured using the original metal material. The speaker tray frame manufactured using the metal material has the above-described effect of suppressing the vibration wave, so that the reproduced sound is harsh, and with the progress of speaker manufacturing technology, the sound is reproduced by other alternative materials or other methods. The distortion and unevenness of the speaker are suppressed, and the drawback of resonance at the time of speaker sound reproduction is reduced.

Furthermore, the speaker tray frame manufactured by a known metal press or casting method has a high material cost, the processing process is complicated, and the molding effect is poor (molding after several presses). It is easy to cause phenomena such as magnetic sensitivity and leakage in the magnetic drive circuit and tray frame. If a separate insulation treatment is not performed, the loss of sound effects cannot be stopped. For this reason, several techniques for solving these drawbacks have been submitted. For example, there are the following four types.
1. A soft cushion is installed at the joint between the speaker and the support plate or speaker box to absorb or reduce excessive vibration caused by the magnetic field effect. That is, air vibration caused by suction or excretion generated during electrode transmission in the process of contracting or expanding the vibration film inwardly is absorbed by the soft cushion, thereby reducing the resonance phenomenon. However, such a design causes a deviation or distortion phenomenon in the accuracy of detection of the utterance result, and the sound becomes annoying. Such a situation is clearer at low frequencies.
2. The support strength of the speaker tray frame is strengthened, or the case wall of the tray frame is strengthened, and the resonance method of the speaker is pushed up to a high frequency to reduce noise. However, this does not mean that these resonance effects disappear in the high frequency state. Moreover, both the internal support and the outer wall increase the weight of the entire speaker, greatly increasing the difficulty in carrying or moving the speaker, and there is a possibility of expanding the vibration as described above.
3. Increase the damper material or compound mix outside the speaker. However, this method also increases the production cost and the time required for production, and cannot avoid the drawbacks pointed out in the above method 2.
4). A heavy guard plate (or bakelite board or fiber board) is combined with the speaker to make the overall structure of the speaker more solid. However, in order to combine the above-mentioned heavy guard plates, usually a complicated cushion system or screwing is required, which similarly increases the weight of the entire speaker.

  As described above, there is an awaited solution in the industry for the disadvantage that distortion or deviation of sound occurs in the use of a known speaker or that manufacture is difficult.

  The present invention provides a speaker tray frame. It is mainly made of thermoset synthetic material and provides a speaker tray frame that is less susceptible to sound distortion and deviation due to resonance method, i.e. it includes a tray frame, which tray frame is made of thermoset synthetic material, The tray frame includes a front plate having a relatively large diameter and a rear plate having a relatively small diameter, and a weight-like support frame is formed between the front and rear plates. The outer plate is supported, and the post plate is used for a sound generating magnetoelectric device.

The thermosetting synthetic material is BMC material, SMC material, TMC material, and the thermosetting synthetic material can be further added with a fiber material capable of reinforcing the tray frame structure, and the BMC material, SMC material, TMC material further includes Fiber material that can reinforce the tray frame structure can be added,
The thermosetting synthetic material can further contain at least one filler of wood powder, mica, calcium, and synthetic rubber,
The tray frame is a tray frame formed by at least one of press molding, casting, twin-jet casting, vacuum or pressure thermoforming.

  Compared with known technologies, the advantage of the present invention is that the design of the speaker tray frame that is integrally molded from a thermosetting synthetic material is based on the condition that the speaker has high damper and earthquake resistance. The tray frame that is difficult to generate and has a front plate with a relatively large diameter and a rear plate with a relatively small diameter integrally formed with a weight-like support frame between the two plates. A speaker tray frame that is easy to process, is made of a material with good viscosity and good damper properties, and can provide support to the vibration tray cover. In addition, the resonance phenomenon that can occur in the vibration process of the speaker coil Effectively suppresses the use of elasticity superior to that of metal and achieves a better sound generation effect To provide a wear speaker tray frame.

The device of claim 1 includes a tray frame,
The tray frame is a tray frame formed of a thermosetting synthetic material. The tray frame includes a front plate having a relatively large diameter and a rear plate having a relatively small diameter, and a weight-like shape is formed between the front and rear plates. A support frame is formed, the front plate supports the outer periphery of the vibration tray cover, and the rear plate is a speaker tray frame that is used for a sound generating magnetoelectric device.
The invention of claim 2 is the speaker tray frame according to claim 1, wherein the thermosetting synthetic material is BMC material.
The invention of claim 3 is the speaker tray frame according to claim 1, wherein the thermosetting synthetic material is an SMC material.
The invention of claim 4 is the speaker tray frame according to claim 1, wherein the thermosetting synthetic material is a TMC material.
The invention according to claim 5 is the speaker tray frame according to claim 1, wherein the thermosetting synthetic material can be added with a fiber material capable of reinforcing the tray frame.

The invention of claim 6 is the speaker tray frame according to claim 2, wherein the BMC material can be added with a fiber material capable of reinforcing the tray frame.
A seventh aspect of the present invention is the speaker tray frame according to the third aspect, wherein the SMC material is capable of adding a fiber material capable of reinforcing the tray frame.
The invention of claim 8 is the speaker tray frame according to claim 4, wherein the TMC material is capable of adding a fiber material capable of reinforcing the tray frame.
The invention of claim 9 is the speaker tray frame according to claims 1 to 8, wherein the thermosetting synthetic material can be further added with one kind of filler among wood powder, mica, calcium, and synthetic rubber. The speaker tray frame is characterized by
A tenth aspect of the present invention is the speaker tray frame according to any one of the first to eighth aspects, wherein the tray frame is formed by at least one of press molding, casting, twin jet casting, vacuum or pressure thermoforming. The speaker tray frame is characterized by being a tray frame.
The invention of claim 11 is the speaker tray frame according to claim 9, wherein the tray frame is a tray frame formed by at least one of press molding, casting, twin jet casting, vacuum or pressure thermoforming. The speaker tray frame is characterized by being.

  According to the present invention, manufacturing by a mold block can reduce manufacturing cost and achieve better production operation.

As shown in FIGS. 1-3, this invention tray frame 1 is comprised with the front plate 10 with a relatively large diameter and the back plate 20 with a relatively small diameter manufactured with a thermosetting material.
A weight-like support frame 26 is formed between the front plate 10 and the rear plate 20, the front plate 10 supports the outer periphery 13 of the vibration tray cover 11, and the rear plate 20 is a sound generating magnetism. Used for the electrical device 21. Further, a damper 12 is disposed between the front and rear plates 10 and 20.
The sound generating magnetoelectric device 21 includes a coil 22, a metal plate 23, a magnet component 24, an electromagnet disk 25, and the like.

  The thermosetting material employed in this example includes a dense compound material (TMC), a giant compound material (BMC), and a one-piece compound material (SMC), and these compound materials are selectively added to other filler materials. It can be bonded (such as glass fiber) to increase its surface strength. In addition, fillers such as wood powder, mica, calcium, and synthetic rubber materials can be added to increase the beauty of the appearance and improve the material properties.

  In the optimum consideration of the present embodiment, the thermosetting material (BMC, TMC, SMC) forms the structure of the tray frame 1 by using a press molding, casting, twin jet casting, vacuum or pressure thermoforming method. To do.

In general, the edge of the front plate 10 and the edge of the rear plate 20 and the area where the weight-like support frame 26 is joined are relatively fragile. Therefore, in the embodiment employed in the present invention, the thermosetting material is used. Bind additives to materials used other than (BMC, TMC, SMC). As a result, the relatively weak area can acquire a mitigating or lowering effect in the excessive vibration generated by the speaker resonance method.
For example, since the BMC material is a large block molding method and not a sheet type, a short fiber additive can be added to strengthen the structure of the product in the manufacturing process of the BMC material. Since SMC is a sheet-like molding material, the structure can be strengthened by using long fibers. The TMC material is a compound material that increases the strength of the entire tray frame 1 by a fiber having a length between long fibers and short fibers.

  The rigidity and strength of the BMC, TMC, and SMC materials adopted by the present invention are superior to those of plastic or synthetic resin, and provide the optimum viscosity and increase the ability to suppress resonance. In addition, such an improvement effectively solves the problem of distortion and misalignment caused in a specific frequency reproduction section by a tray frame structure manufactured from a known metal material, and avoids loss of acoustic effect due to leakage. it can.

It is a three-dimensional exploded view of an embodiment of the present invention. FIG. 2 is a combined sectional view of FIG. 1. It is another type of three-dimensional display diagram of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 tray frame 10 front plate 11 vibration tray cover 12 damper 13 outer periphery 20 rear plate 21 sound generating magnetoelectric device 22 coil 23 metal plate 24 magnet part 25 electromagnet disk 26 spindle support frame

Claims (11)

Including tray frame,
The tray frame is a tray frame formed of a thermosetting synthetic material. The tray frame includes a front plate having a relatively large diameter and a rear plate having a relatively small diameter, and a weight-like shape is formed between the front and rear plates. A speaker tray frame, characterized in that a support frame is formed, the front plate supports an outer periphery of a vibration tray cover, and the rear plate is used for a device of a sound generating magnetoelectric device.   2. The speaker tray frame according to claim 1, wherein the thermosetting synthetic material is a BMC material.   2. The speaker tray frame according to claim 1, wherein the thermosetting synthetic material is an SMC material.   2. The speaker tray frame according to claim 1, wherein the thermoset synthetic material is a TMC material.   2. The speaker tray frame according to claim 1, wherein a fiber material capable of reinforcing the tray frame can be added to the thermosetting synthetic material.   3. The speaker tray frame according to claim 2, wherein a fiber material capable of reinforcing the tray frame can be added to the BMC material.   4. The speaker tray frame according to claim 3, wherein a fiber material capable of reinforcing the tray frame can be added to the SMC material.   5. The speaker tray frame according to claim 4, wherein the TMC material can be added with a fiber material capable of reinforcing the tray frame.   9. The speaker tray frame according to claim 1, further comprising a filler of wood powder, mica, calcium and synthetic rubber added to the thermosetting synthetic material. .   9. The speaker tray frame according to claim 1, wherein the tray frame is a tray frame formed by at least one of press molding, casting, twin jet casting, vacuum or pressure thermoforming. Characteristic speaker tray frame.   10. The speaker tray frame according to claim 9, wherein the tray frame is a tray frame formed by at least one of press molding, casting, twin jet casting, vacuum or pressure thermoforming. Tray frame.

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