CN110830741A - Television set - Google Patents
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- CN110830741A CN110830741A CN201911203637.XA CN201911203637A CN110830741A CN 110830741 A CN110830741 A CN 110830741A CN 201911203637 A CN201911203637 A CN 201911203637A CN 110830741 A CN110830741 A CN 110830741A
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- 230000005236 sound signal Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 3
- 230000005238 low-frequency sound signal Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000002146 bilateral effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 210000005069 ears Anatomy 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
- H04N5/642—Disposition of sound reproducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
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Abstract
The invention relates to the technical field of acoustics, in particular to a television, which is used for solving the problems that the sound with frequency near a frequency dividing point is turbid and the layering sense is poor due to the arrangement mode of a loudspeaker device of the television at present. The embodiment of the invention provides a television which comprises a loudspeaker device, wherein the loudspeaker device comprises at least one low-frequency loudspeaker and at least one pair of mid-frequency loudspeakers; each pair of the intermediate frequency speakers is arranged in a first set area close to the frame of the television, and the sound outlet of the intermediate frequency speaker faces to the frame of the television closest to the frame; the low frequency loudspeaker is arranged in a second set area close to the central position of the television. The position of the low-intermediate frequency loudspeaker in the embodiment of the invention can offset or reduce the phase difference of the intermediate frequency sound and the low frequency sound of the sound frequency at the frequency dividing point, thereby improving the poor layering of the sound and achieving better sound effect.
Description
The application is a divisional application of a Chinese invention patent application 201710756469.1 with the name of 'a television' proposed in 29.08.2017.
Technical Field
The invention relates to the technical field of acoustics, in particular to a television.
Background
Under the trend of thinning of televisions, the installation space of the left and right sound channel speakers of the televisions is smaller and smaller, so that the bass tone quality of the televisions is reduced. To compensate for bass sound quality, it is common practice to provide a separate subwoofer within the television cabinet. Because the bass wavelength is longer, the bass energy generated by the built-in subwoofer can bypass the front of the television screen and reach the ears of a user; however, some of the bass energy generated from the built-in subwoofer is lost as it bypasses the television screen and reaches the user's ears. For the bass energy lost by this, it is a conventional practice to compensate for the bass energy by increasing the bass gain in the circuit.
However, the way of compensating the bass gain on the circuit can only ensure that the bass energy received by the user is not lost, and cannot ensure that the user hears a natural sound because: due to the characteristics of electronic devices, a phase difference exists between bass and middle sound near a frequency dividing point, so that a part of sound is weakened or even cancelled, and the problems of sound turbidity, poor layering sense and the like are caused.
For example, assuming that the frequency division point of the middle bass is 300Hz, as shown in fig. 1A, the gains of the middle and bass are attenuated by 3dB at a frequency of 300 Hz. However, after the sound is subjected to the frequency division processing, the phase difference between the midrange and the bass exists after the sound is subjected to the frequency division algorithm, and the phase difference may be 90 degrees or 180 degrees depending on the filter used. If a Butterworth2 type filter is used as shown in fig. 1B, the phase difference between the middle and low tones is 180 degrees, and the sound with a frequency of about 300Hz is turbid, resulting in poor gradation.
In summary, the speaker device of the television set is currently installed in a manner such that the sound with a frequency near the frequency division point is cloudy and has poor gradation.
Disclosure of Invention
The invention provides a television, which is used for solving the problems that the sound with frequency near a frequency dividing point is turbid and the layering sense is poor due to the arrangement mode of a loudspeaker device of the television in the prior art.
In view of the foregoing problems, an embodiment of the present invention provides a television, including a speaker device, where the speaker device includes at least one woofer and at least one pair of midrange speakers; wherein,
the intermediate frequency loudspeaker is arranged in a first set area close to a frame of the television, a sound outlet of the intermediate frequency loudspeaker faces to the frame of the television closest to the frame, and the intermediate frequency loudspeaker is arranged in bilateral symmetry relative to a central axis of the television in the vertical direction; the low-frequency loudspeaker is arranged in a second set area close to the central position of the television, so that the sound path difference between bass from the low-frequency loudspeaker to a target position in the watching area of the television and midrange from the midrange loudspeaker to the target position is not less than a first threshold value; and the first threshold value is not larger than the maximum side length of the television display screen.
Optionally, the distance between the sound outlet of the low-frequency speaker and each frame of the television is not less than a second threshold; the distance between the sound outlet of the intermediate frequency loudspeaker and the frame of the television closest to the sound outlet is not greater than a third threshold value;
wherein the second threshold is greater than the first threshold, and the first threshold is greater than the third threshold.
Optionally, the low frequency speaker includes a speaker unit and a cover plate; the cover plate covers the diaphragm area of the loudspeaker unit, and the cover plate is provided with a sound outlet of the low-frequency loudspeaker.
Optionally, the midrange speaker includes a speaker unit and a cover plate; the cover plate covers the diaphragm area of the loudspeaker unit, and the cover plate is provided with a sound outlet of the intermediate frequency loudspeaker.
Optionally, the speaker means comprises two woofers and two midrange speakers.
Optionally, the mid-frequency speaker is disposed near a bottom frame of the television.
Optionally, the sound outlet of the midrange speaker faces the bottom frame of the television, and a distance from the sound outlet of the midrange speaker to the bottom frame of the television is not greater than the third threshold.
Optionally, the sound outlet of the low-frequency speaker faces the top frame of the television, and a distance between the sound outlet of the low-frequency speaker and each frame of the television is not less than the second threshold.
Because the sound emitted by the low-frequency loudspeaker and the middle-frequency loudspeaker in the television set in the embodiment of the invention needs to bypass the display screen of the television set to reach the user, the middle-frequency loudspeaker in the embodiment of the invention is arranged close to the frame of the television set, and the sound outlet of the middle-frequency loudspeaker faces to the frame with the closest distance, the sound emitted by the middle-frequency loudspeaker can be ensured to quickly bypass the display screen of the television set; the low-frequency loudspeaker is arranged in the central area of the television, so that sound emitted from the low-frequency loudspeaker can be wound out of a display screen of the television only after passing through a certain distance of sound path, and thus, the sound path difference exists between a bass sound path from the low-frequency loudspeaker to a target position in a watching area of the television and a middle sound path from the medium-frequency loudspeaker to the target position. When the propagation distances are the same, the frequency division algorithm causes a phase difference between low-frequency sound and intermediate-frequency sound of the sound frequency near the frequency division point, but the sound path from the sound outlet of the low-frequency speaker to the target position in the watching area of the television is longer than the sound path from the sound outlet of the intermediate-frequency speaker to the target position by the propagation distance not less than the first threshold, so that the phase of the sound can be changed, the phase difference between the intermediate-frequency sound and the low-frequency sound of the sound frequency near the frequency division point can be offset or reduced, and the level difference of the sound is improved, and a better sound effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1A is a diagram illustrating the gain of bass and mediant in the background art;
FIG. 1B is a diagram illustrating the phase of bass and mediant in the background art;
fig. 2 is a schematic structural diagram of a first television according to an embodiment of the present invention;
FIG. 3 is a schematic view of the position of the axis in the TV set according to the embodiment of the present invention;
FIG. 4A is a diagram illustrating a first setting area according to an embodiment of the invention;
FIG. 4B is a diagram illustrating a second setting area according to the embodiment of the invention;
fig. 5A is a schematic structural diagram of a second television according to the embodiment of the invention;
fig. 5B is a side view of a second tv set according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an audio speaker according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a low frequency speaker according to an embodiment of the present invention;
fig. 8A is a schematic structural diagram of a third television according to the embodiment of the invention;
fig. 8B is a schematic structural diagram of a fourth television according to the embodiment of the invention;
fig. 8C is a schematic structural diagram of a fifth television according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2, the television set of the embodiment of the present invention includes a speaker device 10, a display screen 20, and a housing 30;
the speaker device 10 includes at least one woofer 100 and at least one pair of midrange speakers 101;
the middle-frequency loudspeaker is arranged in a first set area close to a frame of the television, a sound outlet of the middle-frequency loudspeaker faces to the frame of the television closest to the middle-frequency loudspeaker, and the middle-frequency loudspeaker is arranged in bilateral symmetry relative to a central axis of the television in the vertical direction; the low-frequency loudspeaker is arranged in a second set area close to the central position of the television, so that the sound path difference between bass from the low-frequency loudspeaker to a target position in the watching area of the television and midrange from the midrange loudspeaker to the target position is not less than a first threshold value; and the first threshold value is not larger than the maximum side length of the television display screen.
Because the sound emitted by the low-frequency loudspeaker and the middle-frequency loudspeaker in the television set in the embodiment of the invention needs to bypass the display screen of the television set to reach the user, the middle-frequency loudspeaker in the embodiment of the invention is arranged close to the frame of the television set, and the sound outlet of the middle-frequency loudspeaker faces to the frame with the closest distance, the sound emitted by the middle-frequency loudspeaker can be ensured to quickly bypass the display screen of the television set; the low-frequency loudspeaker is arranged in the central area of the television, so that sound emitted from the low-frequency loudspeaker can be wound out of a display screen of the television only after passing through a certain distance of sound path, and thus, the sound path difference exists between a bass sound path from the low-frequency loudspeaker to a target position in a watching area of the television and a middle sound path from the medium-frequency loudspeaker to the target position. When the propagation distances are the same, the frequency division algorithm causes a phase difference between the low-frequency sound and the medium-frequency sound of the sound frequency near the frequency division point, but the sound path from the sound outlet of the low-frequency speaker to the target position in the watching area of the television is larger than the sound path from the sound outlet of the medium-frequency speaker to the target position by the propagation distance not smaller than the first threshold, so that the phase of the sound can be changed, the phase difference between the medium-frequency sound and the low-frequency sound of the sound frequency near the frequency division point can be offset or reduced, and the level difference of the sound is improved, and a better sound effect is achieved.
It should be noted that, in the speaker device according to the embodiment of the present invention, the midrange speakers are arranged in pairs, and the number of the midrange speakers 101 is an even number; and each pair of the midrange loudspeakers in the loudspeaker device is arranged symmetrically left and right relative to the central axis of the vertical direction of the television. For example, in the television shown in fig. 3, if the point O is the central point of the television, a straight line L passing through the point O and perpendicular to the upper and lower frames of the television is the central axis in the vertical direction of the television, and if the speaker device of the television includes two midrange speakers, the two midrange speakers are symmetric to each other.
Because the intermediate frequency sound signal of the television in the embodiment of the invention is composed of the left channel sound signal and the right channel sound signal, in order to enable the intermediate frequency sound to be emitted from the television to reach the sound signals of the left and right channels when reaching the user, the intermediate frequency loudspeakers need to be arranged in the television in a bilateral symmetry mode, the number of the intermediate frequency loudspeakers on the left and right sides is the same, the sound signal of the left channel is emitted from the intermediate frequency loudspeaker on the left side to reach the user, the sound signal of the right channel is emitted from the intermediate frequency loudspeaker on the right side to reach the user, and therefore, the intermediate frequency sound heard by the user has stereoscopic impression, and the sound is more smooth and natural.
In the following description, the embodiments of the present invention define the upper, lower, left, and right orientations of the television in the manner in which the television is normally displayed (the bottom of the television is placed downward).
The position of the first setting area where the midrange speaker is located in the television according to the embodiment of the present invention is shown in fig. 4A, where when the midrange speaker is disposed in the first setting area, the sound outlet of the midrange speaker faces the frame of the television closest to the first setting area. For example, when the midrange speaker is disposed at a position close to the lower frame of the television in the first setting region, the sound outlet of the midrange speaker faces the lower frame of the television.
The position of the second setting area where the woofer of the embodiment of the present invention is located in the television set is shown in fig. 4B. The direction of the sound outlet of the woofer is not limited.
The watching area of the television in the embodiment of the invention can be a preset optimal watching area for a user to watch the television; the target location may be any location within the viewing area.
The following description will be made of the bass sound path of the woofer to a target position in the viewing area of the television and the midrange sound path of the midrange speaker to the target position in the viewing area of the television, taking as an example that the speaker apparatus 10 includes one woofer and two midrange speakers.
A television set shown in fig. 5A includes a speaker device 10, a display screen 20, and a housing 30; wherein, the speaker device 10 includes a woofer 100 and two midrange speakers 101;
the woofer 100 is arranged in a second setting area close to the center of the television, and the two midrange loudspeakers 101 are arranged in the first setting area and close to the bottom frame of the television;
since the woofer 100 is built in a position close to the center of the television, the audio sound emitted from the woofer 100 can reach the viewing area of the television through any direction; and since the midrange speaker 101 is near the bottom bezel of the television, the midrange sound emitted from the midrange speaker 101 can be considered to reach the viewing area of the television from the bottom of the television.
The following description will be made taking as an example a case where low-frequency sound reaches the viewing area of a television from above the television:
as shown in the side view of the tv set shown in fig. 5B, point a is the position of the woofer sound outlet, point B is the position of the midrange speaker sound outlet, and is close to the bottom frame of the tv set, and the target position point M where the bass and the midrange reach the viewing area of the tv set is taken as an example for explanation. The solid line with an arrow in fig. 5B indicates the bass sound path of the bass sound emitted from the woofer to the point M, and the dotted line with an arrow in fig. 5B indicates the midrange sound path of the midrange sound emitted from the midrange speaker to the point M. And the sound path difference between the bass of the bass reaching point M emitted by the low-frequency loudspeaker and the midrange of the midrange reaching point M emitted by the midrange loudspeaker is not less than a first threshold value.
Optionally, the first threshold of the embodiment of the present invention is 300 mm.
Wherein the first threshold value of 300mm is a preset value, or the first threshold value of 300mm is an empirical value of those skilled in the art.
When the first threshold is 300mm, that is, the sound path of the bass sound is propagated by 300mm more than the sound path of the mediant sound, and the propagation distance of 300mm can change the phase of the sound, so the difference of the sound paths of 300mm can ensure that the phase difference of the bass sound and the mediant sound near the frequency dividing point is equal or close, which will be described in the following with specific examples.
Wherein, 200 Hz-600 Hz are commonly used frequency dividing points for bass and Chinese sound.
1. For 567Hz audio:
wherein,
the sound velocity is generally 340 m/s;
is the wavelength of the sound wave,
is the acoustic frequency.
Calculating the wavelength of 567Hz sound to be 600mm according to the formula I; with a first threshold of 300mm, a path difference of 300mm may phase bass and midrange 180 degrees apart. Assuming that the embodiment of the present invention uses Butterworth2 low-pass/high-pass frequency division, and the phase difference between the bass and the mediant at the frequency division point is 180 degrees, the phase difference of 180 degrees generated by the path difference of 300mm can cancel the phase difference between the bass and the mediant generated by the frequency division algorithm.
2. For an audio of 378 Hz:
calculating the wavelength of 378Hz sound to be 900mm according to the formula I; with a first threshold of 300mm, a path difference of 300mm may cause bass and treble to be 120 degrees out of phase. Assuming that the embodiment of the present invention uses Butterworth2 low-pass/high-pass frequency division, and the phase difference between the bass and the mediant at the frequency division point is 180 degrees, the phase difference of 120 degrees generated by the path difference of 300mm can reduce the phase difference between the bass and the mediant generated by the frequency division algorithm.
3. For a 283Hz audio:
calculating the wavelength of 283Hz sound to be 1200mm according to the formula I; with a first threshold of 300mm, a path difference of 300mm may cause bass and treble to be 90 degrees out of phase. Assuming that the embodiment of the present invention uses Butterworth2 low-pass/high-pass frequency division, and the phase difference between the bass and the mediant at the frequency division point is 180 degrees, the phase difference of 90 degrees generated by the path difference of 300mm can reduce the phase difference between the bass and the mediant generated by the frequency division algorithm.
Optionally, the distance between the sound outlet of the low-frequency speaker and each frame of the television is not less than a second threshold; the distance between the sound outlet of the intermediate frequency loudspeaker and the frame of the television closest to the sound outlet is not greater than a third threshold value; wherein the second threshold is greater than the first threshold, and the first threshold is greater than the third threshold.
It should be noted that the distance between the sound outlet of the low-frequency speaker and each frame of the television is the vertical distance between the sound outlet of the low-frequency speaker and each frame of the television; the distance between the sound outlet of the midrange speaker and the nearest frame of the television is the vertical distance between the sound outlet of the midrange speaker and the nearest frame of the television.
In the embodiment of the invention, the distance between the sound outlet of the low-frequency loudspeaker and each frame of the television is not less than the second threshold, and the distance between the sound outlet of the medium-frequency loudspeaker and the nearest frame of the television is not more than the third threshold, so that the sound path difference between the bass from the sound outlet of the low-frequency loudspeaker to the target position in the watching area of the television and the midrange from the sound outlet of the medium-frequency loudspeaker to the target position is not less than the first threshold.
Optionally, the second threshold is 310 mm; the third threshold is 10 mm.
Optionally, the woofer includes a speaker unit and a cover plate; the cover plate covers the diaphragm area of the loudspeaker unit, and the cover plate is provided with a sound outlet of the low-frequency loudspeaker.
The midrange speaker shown in fig. 6 includes a speaker unit 61 and a cover plate 62; wherein the cover plate 62 covers part of the diaphragm area of the loudspeaker unit 61, while the uncovered diaphragm area is the sound outlet of the loudspeaker.
The cover plate 62 is a metal cover plate for enclosing the sound emitted from the diaphragm region of the covered speaker unit so that the sound is emitted entirely from the sound outlet.
Optionally, the mid-range speaker includes a speaker unit and a cover plate; the cover plate covers the diaphragm area of the loudspeaker unit, and the cover plate is provided with a sound outlet of the intermediate frequency loudspeaker.
The low frequency speaker shown in fig. 7 includes a speaker unit 71 and a cover plate 72; wherein the cover plate 72 covers part of the diaphragm area of the loudspeaker unit 71, while the uncovered diaphragm area is the sound outlet of the loudspeaker.
The cover plate 72 is a metal cover plate for enclosing the sound emitted from the diaphragm region of the covered speaker unit so that the sound is emitted entirely from the sound outlet.
It should be noted that the manner of providing the sound outlets on the midrange speaker and the woofer shown in fig. 6 and fig. 7 is only an example of the embodiment of the present invention, the manner of providing the sound outlets to be protected by the embodiment of the present invention is not limited to the above example, and any manner capable of providing the sound outlets on the midrange speaker and the woofer is applicable to the present invention.
The following description will specifically take an example in which the speaker device includes two woofers and two midrange speakers.
Specific example 1:
the sound outlet of the intermediate frequency speaker is arranged at a position close to the bottom frame of the television and faces the bottom frame of the television, and the minimum distance between the sound outlet of the intermediate frequency speaker and the bottom frame of the television is not greater than the third threshold value.
The sound outlet of the low-frequency loudspeaker faces the top frame of the television, and the minimum distance between the sound outlet of the low-frequency loudspeaker and each frame of the television is not smaller than the second threshold value.
The television set shown in fig. 8A includes the speaker device 10 and the housing 30; the loudspeakers comprise two woofers 100 and two midrange loudspeakers 101;
the two woofers 100 are arranged in the shell 30, the distance (1) from the sound outlet 1001 of any one woofer 100 to the top frame of the shell 30 is not more than 310mm, the distance (2) from the sound outlet 1001 of any one woofer 100 to the bottom frame of the shell 30 is not more than 310mm, the distance (3) from the sound outlet 1001 of any one woofer 100 to the left frame of the shell 30 is not more than 310mm, and the distance (4) from the sound outlet 1001 of any one woofer 100 to the right frame of the shell 30 is not more than 310 mm;
the sound outlets 1001 of both woofers 100 are towards the top rim of the housing 30;
the two midrange speakers 101 are arranged in the casing 30 of the television and close to the bottom side frame of the casing 30 of the television, and the two midrange speakers 101 are arranged in bilateral symmetry relative to the central axis of the television in the vertical direction; the distance from the sound outlet of any one midrange speaker 101 to the bottom frame of the housing 30 is not more than 10mm, and the distance from the sound outlet 1011 of the midrange speaker 101 to the top frame, the left side frame and the right side frame of the housing 30 is far more than 10mm, so that the midrange sounds emitted from the sound outlet 1011 of the midrange speaker 101 can be considered to reach the watching area of the television from the lower frame of the housing 30;
the sound outlets 1011 of both midrange speakers 101 are directed toward the bottom rim of the housing 30.
Specific example 2:
the television set shown in fig. 8B includes the speaker device 10 and the housing 30; the loudspeakers comprise two woofers 100 and two midrange loudspeakers 101;
the two woofers 100 are arranged in the shell 30, the distance (1) from the sound outlet 1001 of any one woofer 100 to the top frame of the shell 30 is not more than 310mm, the distance (2) from the sound outlet 1001 of any one woofer 100 to the bottom frame of the shell 30 is not more than 310mm, the distance (3) from the sound outlet 1001 of any one woofer 100 to the left frame of the shell 30 is not more than 310mm, and the distance (4) from the sound outlet 1001 of any one woofer 100 to the right frame of the shell 30 is not more than 310 mm;
the sound outlets 1001 of both woofers 100 are directed towards the bottom rim of the housing 30;
the two midrange speakers 101 are arranged inside the shell 30 of the television and close to the top frame of the shell 30 of the television, and the two midrange speakers 101 are arranged in bilateral symmetry relative to the central axis of the television in the vertical direction; the distance between the sound outlet 1011 of any one of the midrange speakers 101 and the top border of the housing 30 is not more than 10mm, and the distance between the sound outlet 1011 of the midrange speaker 101 and the bottom border, the left border and the right border of the housing 30 is far more than 10mm, so that the midrange sounds emitted from the sound outlet 1011 of the midrange speaker 101 can be considered to reach the watching area of the television from the top border of the housing 30;
the sound outlets 1011 of both midrange speakers 101 are directed towards the top rim of the housing 30.
Specific example 3:
the television set shown in fig. 8C includes the speaker device 10 and the housing 30; the loudspeakers comprise two woofers 100 and two midrange loudspeakers 101;
the two woofers 100 are arranged in the shell 30, the distance (1) from the sound outlet 1001 of any one woofer 100 to the top frame of the shell 30 is not more than 310mm, the distance (2) from the sound outlet 1001 of any one woofer 100 to the bottom frame of the shell 30 is not more than 310mm, the distance (3) from the sound outlet 1001 of any one woofer 100 to the left frame of the shell 30 is not more than 310mm, and the distance (4) from the sound outlet 1001 of any one woofer 100 to the right frame of the shell 30 is not more than 310 mm;
the sound outlets 1001 of both woofers 100 are directed towards the top rim of the housing 30;
one of the two midrange speakers 101 is disposed inside the casing 30 of the television at a position close to the left side frame of the casing 30 of the television, and the other midrange speaker 101 is disposed inside the casing 30 of the television at a position close to the right side frame of the casing 30 of the television; the two midrange speakers 101 are arranged in bilateral symmetry relative to a central axis of the television in the vertical direction; the distance between the sound outlet 1011 of the midrange speaker 101 located on the left side frame of the housing 30 and the left side frame of the housing 30 is not more than 10mm, and the distance between the sound outlet 1011 of the midrange speaker 101 and the top frame, the bottom frame and the right side frame of the housing 30 is far more than 10mm, so that the midrange sounds emitted from the sound outlet 1011 of the midrange speaker 101 can be considered to reach the watching area of the television from the left side frame of the housing 30; the distance between the sound outlet 1011 of the midrange speaker 101 positioned on the right side frame of the shell 30 and the right side frame of the shell 30 is not more than 10mm, and the distance between the sound outlet 1011 of the midrange speaker 101 and the top frame, the bottom frame and the left side frame of the shell 30 is far more than 10mm, so that the midrange sounds emitted from the sound outlet 1011 of the midrange speaker 101 can be considered to reach the watching area of the television from the right side frame of the shell 30;
the sound outlet 1011 of the midrange speaker 101 located at the left side frame of the housing 30 is directed toward the left side frame of the housing 30; the sound outlet 1011 of the midrange speaker 101 located on the right side frame of the housing 30 is directed toward the right side frame of the housing 30.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A television set, comprising:
a display screen is arranged on the display screen,
the shell comprises a frame, and the frame is arranged on the display screen in an enclosing manner;
the intermediate frequency loudspeaker is arranged in a first set area inside the shell and used for playing intermediate frequency sound signals, wherein the intermediate frequency sound signals comprise left channel sound signals and right channel sound signals;
the low-frequency loudspeaker is arranged in a second set area inside the shell and used for playing low-frequency sound signals;
the low-frequency sound signal from the low-frequency loudspeaker to a target position in a watching area of the television is transmitted by a distance which is not less than a first threshold value more than the sound path of the intermediate-frequency sound signal from the intermediate-frequency loudspeaker to the target position, so that the phase difference between the intermediate-frequency sound signal and the low-frequency sound signal near a frequency dividing point is counteracted or reduced;
the first setting area is close to the frame of the television, and the second setting area is close to the center of the television.
2. The television set according to claim 1, wherein the midrange speakers are disposed symmetrically left and right with respect to a central axis of the television set in a vertical direction and near a bottom frame of the television set.
3. The television set according to claim 1, wherein the distance between the sound outlet of the low frequency speaker and each frame of the television set is not less than a second threshold value;
the distance between the sound outlet of the intermediate frequency loudspeaker and the frame of the television closest to the sound outlet is not greater than a third threshold value;
wherein the second threshold is greater than the first threshold, and the first threshold is greater than the third threshold.
4. The television set of claim 3, wherein the sound outlet of the midrange speaker is oriented toward a bottom bezel of the television set, and wherein the distance from the sound outlet of the midrange speaker to the bottom bezel of the television set is not greater than the third threshold.
5. The television set according to claim 3, wherein the sound outlet of the low frequency speaker faces the top frame of the television set, and the distance between the sound outlet of the low frequency speaker and each frame of the television set is not less than the second threshold.
6. The television of claims 1-5, wherein the first threshold is not greater than a maximum side length of the television display screen.
7. The television set of claim 6, wherein the first threshold is 300mm, the second threshold is 310mm, and the third threshold is 10 mm.
8. The television set of claim 1, wherein the low frequency speaker comprises a first speaker unit and a first cover plate; the first cover plate covers the diaphragm area of the loudspeaker unit, and the first cover plate is provided with a sound outlet of the low-frequency loudspeaker.
9. The television set of claim 8, comprising a midrange speaker comprising a second speaker unit and a second cover plate; the second cover plate covers a part of the diaphragm area of the second speaker unit, and the uncovered diaphragm area is the sound outlet of the midrange speaker.
10. The television set according to claim 9, wherein the first cover plate and/or the second cover plate is a metal cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911203637.XA CN110830741B (en) | 2017-08-29 | 2017-08-29 | Television set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911203637.XA CN110830741B (en) | 2017-08-29 | 2017-08-29 | Television set |
| CN201710756469.1A CN107517355B (en) | 2017-08-29 | 2017-08-29 | Television set |
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| CN201710756469.1A Division CN107517355B (en) | 2017-08-29 | 2017-08-29 | Television set |
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| CN110830741B CN110830741B (en) | 2021-12-28 |
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| CN108616791A (en) * | 2018-04-27 | 2018-10-02 | 青岛海信移动通信技术股份有限公司 | A kind of audio signal playing method and device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107517355B (en) | 2020-02-07 |
| CN107517355A (en) | 2017-12-26 |
| CN110830741B (en) | 2021-12-28 |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Visual Technology Co., Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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