TWI619625B - Elevatable car speaker - Google Patents

Abstract

The invention relates to a telescopic horn structure for a vehicle. The telescopic horn structure comprises a housing, a driving component, a telescopic mechanism and a horn. The housing has a cavity; the driving component is installed in the cavity and is driven. The assembly comprises a stepping motor and a transmission shaft connected to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate; the telescopic mechanism is accommodated in the cavity, the telescopic mechanism comprises a lead screw and is screwed with the lead screw A telescopic rod, the lead screw is driven to rotate by the drive shaft, so that the telescopic rod can be telescopically moved relative to the lead screw; the horn is fixed at the end of the telescopic rod and moves along with the telescopic rod. Thereby, the telescopic horn structure can be adjusted and adjusted according to the demand, and the assembly component is effectively simplified and the manufacturing cost is saved.

Description

Telescopic horn structure for vehicles

The invention relates to a horn structure, in particular to a telescopic horn structure for a vehicle.

At present, the mainframes of audio-visual equipment are mostly embedded in the panel in front of the driver's seat of the vehicle, and the horn is embedded in the door or the panel. Since the horn is directional to the user, the horn installation will greatly reduce the entertainment effect, but If the horn is placed on the panel or the door in order to make the horn perform well, the horn may be easily damaged by collision and the like.

Therefore, a telescopic horn structure appears on the market, which uses a motor-driven telescopic mechanism to move and retract, and then fixes the horn to the end of the telescopic mechanism and follows the telescopic mechanism to move, so that the horn can be selectively protruded or embedded in the panel according to the demand. Or the door.

However, the motor of the telescopic horn structure is mostly a synchronous motor. The synchronous motor has the characteristics of constant speed, no need for speed regulation and small starting torque, and the retractable horn structure needs to be equipped with a reduction gear and a position sensor. In order to adjust the rotation speed of the telescopic mechanism and limit the movement stroke of the telescopic mechanism, the telescopic horn structure has the problems of complicated assembly components and high manufacturing cost.

In view of the above, the present inventors have made great efforts to solve the above problems in view of the above-mentioned prior art, and have devoted themselves to the research and development of the above-mentioned problems. aims.

An object of the present invention is to provide a telescopic horn structure for a vehicle, which uses a stepping motor to drive a telescopic mechanism to telescopically move, so that the telescopic horn structure can be telescopically adjusted according to requirements, and the assembly component is effectively simplified and the production is saved. cost.

In order to achieve the above object, the present invention provides a telescopic horn structure for a vehicle, comprising: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a drive shaft, a first gear, a second gear and a drive chain, the drive shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first gear sleeve The transmission shaft is rotated along the transmission shaft, and the transmission chain sleeve is sleeved on the outside of the first gear and the second gear and meshed with the first gear and the second gear; a telescopic mechanism is accommodated In the cavity, the telescopic mechanism includes a lead screw and a telescopic rod screwed to the lead screw, the second gear is coupled to the end of the lead screw and interlocked with the lead screw to make the lead screw Driven by the drive shaft to rotate the telescopic rod relative to the lead screw; and a horn fixed to the end of the telescopic rod and following the telescopic rod.

In order to achieve the above object, the present invention provides a telescopic horn structure for a vehicle, comprising: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a drive shaft, a first gear, a second gear and a drive belt, the drive shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first gear is sleeved on The transmission shaft rotates along the transmission shaft, and an inner gear extends from an inner wall of the transmission belt, the transmission belt is sleeved outside the first gear and the second gear, and the internal gear and the first gear and the The second gear is meshed with the transmission; a telescopic mechanism is received in the cavity, the telescopic mechanism includes a lead screw and a telescopic rod screwed to the lead screw, and the second gear is coupled to the end of the lead screw And the lead screw is interlocked with each other to rotate the lead screw by the driving shaft, so that the telescopic rod can be telescopically moved relative to the lead screw; and a speaker is fixed At the end of the telescopic rod and following the telescopic rod moves.

In order to achieve the above object, the present invention provides a telescopic horn structure for a vehicle, comprising: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a drive shaft, a first driven wheel, a second driven wheel and a transmission belt, the drive shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first driven wheel Threading the drive shaft and rotating along the drive shaft, the drive belt is tightly sleeved on the outside of the first driven wheel and the second driven wheel; a telescopic mechanism is received in the cavity, the telescopic The mechanism comprises a lead screw and a telescopic rod screwed to the lead screw, the second driven wheel is coupled to the end of the lead screw and interlocked with the lead screw to drive the lead screw to be driven by the drive shaft So that the telescopic rod can be telescopically moved relative to the lead screw; and a horn fixed to the end of the telescopic rod and following the telescopic rod to move.

10‧‧‧Retractable speaker structure

1‧‧‧Shell

11‧‧‧容容

12‧‧‧The lower seat

13‧‧‧Upper cover

131‧‧‧through hole

132‧‧‧ Limit slot

2‧‧‧Drive components

21‧‧‧Stepper motor

22‧‧‧ drive shaft

23‧‧‧Transmission gear

24‧‧‧First gear

25‧‧‧second gear

26‧‧‧Drive chain

27, 27'‧‧‧ drive belt

271‧‧‧Internal gear

28‧‧‧First driven wheel

29‧‧‧Second driven wheel

3‧‧‧Flexing mechanism

31‧‧‧ lead screw

32‧‧‧ Telescopic rod

321‧‧‧Spiral guide

322‧‧‧Upright rails

33‧‧‧passive gear

4‧‧‧ Horn

5‧‧‧ 收纳 tube

The first figure is an exploded perspective view of a first embodiment of the telescopic horn structure of the present invention.

The second drawing is another perspective exploded view of the first embodiment of the telescopic horn structure of the present invention.

The third figure is a perspective assembled view of the first embodiment of the telescopic horn structure of the present invention.

Fig. 4 is a view showing the state of use of the first embodiment of the telescopic horn structure of the present invention.

Fig. 5 is a view showing another use state of the first embodiment of the telescopic horn structure of the present invention.

Figure 6 is a perspective view of another embodiment of the first embodiment of the telescopic horn structure of the present invention.

Figure 7 is a perspective assembled view of a second embodiment of the telescopic horn structure of the present invention.

Figure 8 is a perspective exploded view of a third embodiment of the telescopic horn structure of the present invention.

Figure 9 is a perspective exploded view of a fourth embodiment of the telescopic horn structure of the present invention.

Figure 10 is a perspective exploded view of a fifth embodiment of the telescopic horn structure of the present invention.

The detailed description and technical content of the present invention will be described with reference to the accompanying drawings.

Referring to the first to sixth figures, the present invention provides a first embodiment of a telescopic horn structure for a vehicle. The telescopic horn structure 10 mainly includes a housing 1, a driving assembly 2, and a telescopic mechanism 3. And a speaker 4.

As shown in the first to third and fifth figures, the housing 1 has a substantially rectangular shape. The housing 1 has a cavity 11. The housing 1 includes a lower seat 12 and an upper cover 13 corresponding to the lower seat 12. The cavity 11 is formed between the lower seat 12 and the upper cover 13. The upper cover 13 is provided with a through hole 131 and a limiting slot 132.

As shown in the first to third figures, the driving assembly 2 is mounted in the cavity 11. The driving assembly 2 includes a stepping motor 21 and a transmission shaft 22 connected to the stepping motor 21, and the stepping motor 21 is fixed to the housing 1 and The drive shaft 22 is rotated.

Further, the driving assembly 2 further includes a transmission gear 23 that is sleeved on the transmission shaft 22 and rotates following the transmission shaft 22 .

As shown in the first to third figures, the telescopic mechanism 3 is housed in the cavity 11. The telescopic mechanism 3 includes a lead screw 31 and a telescopic rod 32 screwed to the lead screw 31. The lead screw 31 is driven by the drive shaft 22. The rotation is such that the telescopic rod 32 can be telescopically moved relative to the lead screw 31.

As described in detail below, one end of the lead screw 31 is disposed corresponding to the lower seat 12, the other end is disposed corresponding to the through hole 131 together with the telescopic rod 32, and the telescopic rod 32 has an internal thread segment, and the lead screw 31 passes through the internal thread segment and the telescopic rod 32. Screwed. The outer wall of the telescopic rod 32 protrudes from a spiral guide 321 corresponding to the limiting slot 132.

In addition, the telescopic mechanism 3 further includes a driven gear 33 connected to the end of the lead screw 31 and interlocked with the lead screw 31, and the transmission gear 23 and the driven gear 33 mesh with each other.

As shown in the third to sixth figures, the horn 4 is fixed to the end of the telescopic rod 32 and follows the movement of the telescopic rod 32, and the horn 4 is rotated in a rotating manner by using the arrangement of the aforementioned spiral guide 321 and the limiting groove 132. Retracted.

As shown in the first to third figures, the telescopic horn structure 10 of the present invention further includes a accommodating cylinder 5, and the accommodating cylinder 5 is fixed to the upper cover 13 and sleeved corresponding to the telescopic rod 32. The horn 4 can It is hidden or protruded from the storage cylinder 5.

Referring to the third to sixth figures, the combination of the telescopic horn structure 10 of the present invention has a housing 11 having a cavity 11; the driving assembly 2 is mounted in the cavity 11, and the driving assembly 2 includes a stepping motor 21 and Connected to the drive shaft 22 of the stepping motor 21, the stepping motor 21 is fixed to the housing 1 and drives the transmission shaft 22 to rotate; the telescopic mechanism 3 is housed in the cavity 11, and the telescopic mechanism 3 includes the lead screw 31 and the lead screw 31. The screwed telescopic rod 32 is driven to rotate by the drive shaft 22, so that the telescopic rod 32 can be telescopically moved relative to the lead screw 31; the horn 4 is fixed to the end of the telescopic rod 32 and follows the telescopic rod 32. Thereby, the stepping motor 21 drives the telescopic mechanism 3 to expand and contract, and the telescopic horn structure 10 can be adjusted in accordance with the demand, and the assembly element can be simplified and the manufacturing cost can be saved.

Referring to the third to sixth figures, the use state of the telescopic horn structure 10 of the present invention is to install the telescopic horn structure 10 in the interior of the automobile, and when the horn 4 is not in use, it is hidden in the accommodating cylinder 5 Inside. When the horn 4 is to be used, the drive shaft 22 is driven to rotate by the stepping motor 21, the drive shaft 22 drives the transmission gear 23 to rotate, and the driven gear 23 drives the driven gear 33 to rotate the lead screw 31 due to the telescopic rod 32. The internal thread segment is screwed to the lead screw 31, so that the telescopic rod 32 is lifted by the lead screw 31 to raise the horn 4 from the accommodating cylinder 5, because the spiral guide 321 of the telescopic rod 32 is received by the limiting slot. The restriction of 132 causes the telescopic rod 32 to be swung up with the spiral guide 321 when the horn 4 is lifted from the accommodating cylinder 5. Further, since the limiting groove 132 is provided in a shape matching the spiral guide 321 and the linear extension of the telescopic rod 32 can be smoothly performed, it is less likely to cause a rise or collapse. Further, when the horn 4 is to be lowered into the accommodating cylinder 5, it is only necessary to reverse the stepping motor 21 to drive the transmission shaft 22 to rotate.

The stepping motor 21 is a type of a pulse motor, and the motor that is gradually rotated at a certain angle is processed by an Open Loop control method, so that a feedback device for position detection and speed detection is not required. Achieve precise position and speed control. Therefore, the telescopic horn structure 10 can effectively and stably adjust the rotation speed of the telescopic rod 32 and limit the movement stroke of the telescopic rod 32 under the components of the reduction gear and the position sensor, so that the telescopic horn structure 10 has simplified assembly. element And the advantages of saving production costs.

Referring to the seventh embodiment, which is a second embodiment of the telescopic horn structure 10 of the present invention, the second embodiment is substantially the same as the first embodiment, and the second embodiment differs from the first embodiment in the telescopic rod 32. The outer wall protrudes from the vertical rail 322.

Further, the outer wall of the telescopic rod 32 protrudes from the vertical rail 322, and the upper cover 13 defines a limiting slot 132 for the vertical rail 322 to be inserted. The telescopic rod 32 is connected to the through hole 131, and the vertical rail 322 is limited. The bit grooves 132 are fitted to each other so that the horn 4 can be extended or retracted in a straight-forward manner and achieve the same functions and effects as those of the first embodiment.

Referring to FIG. 8 , which is a third embodiment of the telescopic horn structure 10 of the present invention, the third embodiment is substantially the same as the first embodiment, and the third embodiment is different from the first embodiment in the driving assembly 2 . The components are different, and the lead screw 31 is rotated by the drive shaft 22 in a different manner.

DETAILED DESCRIPTION The drive assembly 2 further includes a first gear 24, a second gear 25, and a drive chain belt 26. The first gear 24 is sleeved on the drive shaft 22 and rotates following the drive shaft 22, and the second gear 25 is coupled to The end of the lead screw 31 and the lead screw 31 are interlocked with each other, and the drive chain belt 26 is sleeved outside the first gear 24 and the second gear 25 and meshed with the first gear 24 and the second gear 25 to drive the drive shaft. When the rotation 22 is rotated, the drive shaft 22 can drive the lead screw 31 to rotate by the engagement between the first gear 24, the drive chain belt 26 and the second gear 25. Thereby, the functions and effects similar to those of the first embodiment are achieved.

Referring to FIG. 9 , which is a fourth embodiment of the telescopic horn structure 10 of the present invention, the fourth embodiment is substantially the same as the first embodiment, and the fourth embodiment is different from the first embodiment in the driving assembly 2 . The components are different, and the lead screw 31 is rotated by the drive shaft 22 in a different manner.

Further, the driving assembly 2 further includes a first gear 24, a second gear 25 and a transmission belt 27. The first gear 24 is sleeved on the transmission shaft 22 and rotates following the transmission shaft 22, and the second gear 25 is connected to the guide. The end of the screw 31 and the lead screw 31 are interlocked with each other, and an inner gear 271 extends from the inner wall of the transmission belt 27, and the transmission belt 27 is sleeved outside the first gear 24 and the second gear 25, and the internal gear 271 When the first gear 24 and the second gear 25 mesh with each other to rotate the transmission shaft 22, the transmission shaft 22 can drive the lead screw 31 to rotate by the engagement between the first gear 24, the internal gear 271 and the second gear 25. . Thereby, the functions and effects similar to those of the first embodiment are achieved.

Referring to FIG. 10, which is a fifth embodiment of the telescopic horn structure 10 of the present invention, the fifth embodiment is substantially the same as the first embodiment, and the fifth embodiment is different from the first embodiment in the driving assembly 2. The components are different, and the lead screw 31 is rotated by the drive shaft 22 in a different manner.

The driving assembly 2 further includes a first driven wheel 28, a second driven wheel 29 and a transmission belt 27'. The first driven wheel 28 is sleeved on the transmission shaft 22 and rotates following the transmission shaft 22, the second slave The movable wheel 29 is connected to the end of the lead screw 31 and is interlocked with the lead screw 31. The drive belt 27' is tightly sleeved outside the first driven wheel 28 and the second driven wheel 29 to allow the first driven wheel 28 to rotate. The transmission belt 27' generates a frictional force between the first driven wheel 28 and the second driven wheel 29 and drives the second driven wheel 29 to rotate.

Therefore, when the drive shaft 22 rotates, the drive shaft 22 can drive the lead screw 31 to rotate by the frictional force between the first driven wheel 28, the drive belt 27' and the second driven wheel 29. Thereby, the functions and effects similar to those of the first embodiment are achieved.

In summary, the telescopic horn structure for the vehicle of the present invention has not been seen in the same kind of products and is used publicly, and has industrial utilization, novelty and progress, and fully complies with the requirements of the invention patent application, and applies for the application according to the patent law. Please carefully check and grant the patent in this case to protect the rights of the inventor.

Claims (9)

A telescopic horn structure for a vehicle, comprising: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a transmission shaft, a first gear, and a first a second gear and a drive chain, the drive shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first gear is sleeved on the transmission shaft and rotates following the transmission shaft The transmission chain is sleeved on the outside of the first gear and the second gear and is meshed with the first gear and the second gear; a telescopic mechanism is received in the cavity, and the telescopic mechanism comprises a lead screw and a telescopic rod screwed to the lead screw, the second gear is coupled to the end of the lead screw and interlocked with the lead screw to rotate the lead screw by the drive shaft, thereby The telescopic rod is telescopically movable relative to the lead screw; and a horn is fixed to the end of the telescopic rod and moves along with the telescopic rod. A telescopic horn structure for a vehicle, comprising: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a transmission shaft, a first gear, and a first a second gear and a transmission belt, the transmission shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first gear sleeve is coupled to the transmission shaft and rotates along the transmission shaft, An inner gear extends from an inner wall of the transmission belt, the transmission belt is sleeved outside the first gear and the second gear, and the internal gear is meshed with the first gear and the second gear; a telescopic mechanism The telescopic mechanism includes a lead screw and a telescopic rod screwed to the lead screw, and the second gear is connected to the end of the lead screw and interlocked with the lead screw to make The lead screw is driven to rotate by the drive shaft, so that the telescopic rod can be telescopically moved relative to the lead screw; and a horn is fixed to the end of the telescopic rod and moves along with the telescopic rod. A telescopic horn structure for a vehicle includes: a housing having a cavity; a driving assembly mounted in the cavity, the driving component comprising a stepping motor, a transmission shaft, a first driven wheel, and a a second driven wheel and a transmission belt, the transmission shaft is coupled to the stepping motor, the stepping motor is fixed to the housing and drives the transmission shaft to rotate, the first driven wheel is sleeved on the transmission shaft and follows the transmission The shaft is rotated, and the transmission belt is tightly sleeved on the outside of the first driven wheel and the second driven wheel; a telescopic mechanism is received in the cavity, The telescopic mechanism includes a lead screw and a telescopic rod screwed to the lead screw, the second driven wheel is coupled to the end of the lead screw and interlocked with the lead screw to drive the lead screw to be driven by the drive shaft Rotating so that the telescopic rod can move telescopically with respect to the lead screw; and a horn fixed to the end of the telescopic rod and moving along with the telescopic rod. The telescopic horn structure for a vehicle according to claim 1, 2 or 3, wherein the housing comprises a lower seat and an upper cover corresponding to the lower seat cover, the cavity being formed between the lower seat and the upper cover . The telescopic horn structure for a vehicle according to claim 4, wherein the upper cover is provided with a through hole, one end of the lead screw is disposed corresponding to the lower seat, and the other end is disposed corresponding to the through hole. The telescopic horn structure for a vehicle according to claim 4, wherein the outer wall of the telescopic rod protrudes from a spiral guide, and the upper cover defines a limiting slot for the spiral guide to be embedded. The telescopic horn structure for a vehicle according to claim 4, wherein the outer wall of the telescopic rod protrudes from the vertical rail, and the upper cover defines a limiting slot for the vertical rail to be embedded. The telescopic horn structure for a vehicle according to claim 4, further comprising a accommodating cylinder fixed to the upper cover and sleeved with the telescopic rod, the horn being capable of being trapped or protruding from the accommodating cylinder. The telescopic horn structure for a vehicle according to claim 1, 2 or 3, wherein the telescopic rod has an internal threaded section, and the lead screw is screwed to the telescopic rod through the internal thread section.