Television cinema system with high-sensitivity, high-fidelity and high-resolution audio quality

Abstract

The invention discloses a television cinema system with high-sensitivity, high-fidelity and high-resolution audio quality, and belongs to the electroacoustic field of electricity. A traditional television uniquely pursues the ultra-light and ultra-thin whole machine, and the sound effect of the whole machine is poor due to the fact that a loudspeaker of the traditional television lacks necessary air volume. The volume of the cavity between the display screen and the rear cover plate of the television is properly increased, the track-shaped full-band and bass patent loudspeaker is arranged in the television, and the left, right and rear surround sound boxes and the ceiling ceiling sound box which are mounted in a wall-mounted manner in a television broadcasting hall are matched; two-dimensional and three-dimensional cinema systems with internal sound boxes of 2.1, 3.1, 5.2. 4, 7.1. 4 and the like and wireless external sound boxes which are in cross complementation can be successfully established. The lowest lower limit frequency of bass is 76Hz, the highest upper limit frequency of high pitch is 30kHz, and the loudspeaker can be matched with LCD (liquid crystal display) or OLED (organic light emitting diode) televisions with various screen sizes to meet the urgent requirements of vast consumers.

Description

Technical Field

[0001] The present invention relates to a sound system of a flat-panel television, and in particular to a television theater system with high-sensitivity, high-fidelity and high-resolution audio quality, belonging to the electroacoustic field of electronics. Background Art

[0002] In recent years, as LCD flat-panel TVs have completely replaced fluorescent backlights with LED backlights and further introduced more advanced quantum dot display technology, the global flat-panel TV market (including curved screens and conference flat-panel TVs, hereinafter referred to as TVs), including relatively low-priced passive light-emitting LCD displays and relatively expensive active light-emitting OLED displays, has gradually formed a consumption trend of lighter and thinner whole machines, 4K-8K ultra-high-definition displays, and mainstream screen sizes surpassing 85-100-inch large screens.

[0003] However, due to the one-sided pursuit of thin and light design of televisions, the progress made by these televisions as integrated audio-visual products in audio technology lags far behind that made in video technology, and are even worse than CRT televisions from decades ago.

[0004] For example, most TV sets have two traditional small-caliber conical or racetrack-shaped full-range dynamic coil speakers in the narrow cavity formed by the display screen and the plastic back cover of the chassis at the lower end of the TV set, and then radiate sound waves toward the bottom of the TV set through the air outlet of the ultra-thin sound box, thus forming a left-right channel 2.0 TV sound system. At this time, the audio power consumption of the TV set is no more than 2×10W-2×15W (in recent years, a few large-screen products have exceeded tens of watts of audio power consumption), the resonant frequency Fo of the speaker is usually as high as 110Hz or more, the treble cutoff frequency is often less than 20kHz, and the average sensitivity SPL of a single speaker is usually no more than 85dB / 1W / 1m. When playing a movie with full-range sound quality, the overall sound effect of the TV set is that the bass is insufficient, the sound is turbid, the midrange is relatively thin, and the treble is not loud enough. The contrast between video technology and audio technology on the same TV set is quite strong. When these televisions are placed on common TV cabinets and operated, the air outlets of their built-in speakers intersect vertically with the smooth panel of the TV cabinet and are very close to each other. At this time, the inventors of this case discovered that the traditional TV sound system sometimes has abnormal conditions: in certain audio frequency bands, the sound waves reflected back at an angle of 180 degrees from the TV cabinet surface and the new round of sound waves subsequently sent by the same TV may produce wave interference, resulting in a strange mutant sound in the normal programs played by the TV.

[0005] In addition, in order to improve the overall sound effect of televisions, some manufacturers have begun to launch 2.1-channel systems with built-in or back-mounted subwoofers in recent years. However, the present invention believes that the volume and strength of the bass still cannot meet the overall demand of consumers for the sound quality of televisions, especially large-screen televisions. Summary of the invention

[0006] The first purpose of the present invention is to change the direction of the sound waves radiated by the full-band speakers of a television set from toward the base of the television set to toward the audience seats, so as to eliminate from the source the sound wave interference phenomenon that may be caused when the output sound waves of the full-band speakers of the television set and the sound waves reflected by the surface of the television cabinet have a phase angle of 180 degrees.

[0007] The second purpose of the present invention is to completely change people's one-sided perception of thin and light TVs, allow the cavity volume between the TV display screen and the rear cover of the chassis to be widened and deepened, and utilize the transducer series invention patents involving symmetrical magnetic circuits and symmetrical coil circuits that the inventor Zhang Fan has obtained to protrude the plastic rear cover at the lower end of the TV backward by 40-60mm, so that a new generation of racetrack-shaped or similar racetrack-shaped dynamic full-band speakers and subwoofers can be configured in the widened and deepened cavity, thereby forming a 2.1, 2.2-channel, 3.1, 3.2-channel theater system with high sensitivity, high fidelity and high resolution audio quality, greatly improving the bass strength and shock effect of the TV sound system, and overcoming the traditional defects of the existing subwoofers such as muddy bass and large distortion.

[0008] The third purpose of the present invention is to make full use of the large air volume advantage of the cavity of a large-screen TV, and replace the traditional subwoofer speakers installed on the indoor floor of the living room, conference room, classroom, etc. with 1 to 2 subwoofer speakers built into the cavity of the TV, and at the same time combine the left and right surround, left and right rear surround and ceiling speakers installed on the walls of the screening room to successfully build a new generation of green and low-carbon 5.1.4 / 5.2.4 channel, 7.1.4 / 7.2.4 and other channel three-dimensional cinema system with high sensitivity, high fidelity and high resolution audio quality.

[0009] The fourth purpose of the present invention is to add a DSP chip and a unique algorithm to the left front surround speaker and the right front surround speaker of a television, and expand the left and right virtual sound fields generated by them to 1 meter outside the left and right side frames of the television, thereby achieving a more realistic television surround sound effect.

[0010] The fifth purpose of the present invention is to set two "auxiliary magnets" symmetrically arranged on the outer side of the washer of the dynamic loudspeaker with a symmetrical magnetic circuit and a symmetrical coil circuit installed in the sound box, and utilize the magnetic field of the same polarity generated by the two "auxiliary magnets" to repel and compress the edge magnetic field magnetic lines of force protruding outside the magnetic gap of the dynamic loudspeaker, thereby maximally improving the uniformity of the magnetic lines of force in the upper and lower magnetic gaps of the loudspeaker and the frequency consistency of the frequency response restoration process, thereby implementing a major change in the application of the "Lorentz force driver" invented by Siemens (ERNST W.SIEMENS) in the electroacoustic technology.

[0011] The above-mentioned purpose of the present invention is achieved like this:

[0012] A television theater system with high sensitivity, high fidelity and high resolution audio quality, comprising an AC / DC power supply module, a video signal and accompanying audio signal processor and a memory chipset (MCU), a coaxial cable interface, an optical fiber interface, an HDMI interface, a DAC, a digital power amplifier, a dynamic speaker and a sound box, an audio signal wireless transmission and reception module, a PCB board, a connector and a connecting wire, at least two full-band (Full Range) sound boxes are arranged on the left and right sides of the vertical central axis of the television, one side of the box body extends into the cavity formed by the television display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of the box body is flexibly fixed to the outer contour surface of the bottom of the television chassis; at least one full-band speaker (Full Range Speaker) in the shape of a racetrack or a racetrack-like / elliptical or elliptical / rectangular or rectangular shape is embedded and installed on the panel of the full-band speaker box and radiates sound waves toward the audience of the television; c.The full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker and the back electromotive force generated when reciprocating in the magnetic gap are set to be equal to each other. The dynamic potential (BEMF) cancels each other out due to the 180-degree phase angle. The full-band speaker is a dynamic coil speaker with a resistive load characteristic or a characteristic similar to a resistive load characteristic and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker is repelled and compressed by the same polarity magnetic field of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines in the magnetic gap of the speaker and the consistency of the frequency response of the restored audio signal; at least one low The full-band speaker is a speaker box, the box body of which extends into the cavity formed by the TV display screen and the rear cover of the box and is flexibly fixed on the corresponding structural plane. The panel of the bass speaker is arranged near the bottom of the TV box and is flush with the bottom structure of the full-band speaker. At least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular bass speaker is embedded and installed on the panel of the bass speaker and radiates sound waves toward the bottom of the TV or the audience. The bass speaker is a dynamic speaker with a double magnetic gap and a double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical up and down and left and right. The setting The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are equal to each other, the winding directions of the two sets of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two sets of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, absolute values ​​of resistance and inductance of the two sets of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two sets of coils of the woofer speaker and the back electromotive force (BEMF) generated when the two sets of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees, and the woofer speaker is a kind of speaker with a resistive load characteristic or a resonant frequency F. oA dynamic speaker with a frequency of ≤80Hz, when its magnetic circuit is equipped with a pair of "auxiliary magnets" symmetrically arranged up and down, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker causes the originally protruding magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnet" with the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the speaker's magnetic gap and the consistency of the frequency response of the restored audio signal; the digital power amplifiers of the full-band speakers on the left and right sides of the TV are equipped with special DSP chips and written with algorithms to obtain a virtual surround sound effect that extends the left and right sound fields to about 1 meter away on the left or right side of the TV; the left front surround speaker, the right front surround speaker and the subwoofer of the TV constitute a 2.1-channel home theater system with high sensitivity, high fidelity and high resolution audio quality.

[0013] At least three full-band speakers are arranged on the vertical center axis of the TV or on its left and right sides, one side of the speaker extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of the speaker is flexibly fixed to the outer contour surface of the bottom of the TV chassis; at least one full-band speaker (Full Range) in the shape of a racetrack or a racetrack-like shape / ellipse or a ellipse-like shape / rectangle or a rectangle-like shape The full-band speaker is embedded and installed on the panel of the full-band speaker and radiates sound waves toward the viewer of the TV; the full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, and the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, and the impedance value, self-inductance potential (Lenz back electromotive force) and back electromotive force (BEMF) generated when the two groups of coils of the full-band speaker reciprocate in the magnetic gap are mutually offset due to having a 180-degree phase angle. The full-band speaker is a dynamic speaker with a resistive load characteristic or a characteristic similar to a resistive load characteristic and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker causes the originally protruding magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" with the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines in the magnetic gap of the speaker and the frequency response consistency of the restored audio signal; at least one bass speaker is arranged on the vertical central axis of the television or on its left and right sides, and its box body extends into the cavity formed by the television display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the television chassis and flush with the bottom structure of the full-band speaker; e.At least one woofer in the shape of a racetrack or a racetrack / elliptical or elliptical / rectangular or rectangular is embedded and installed on the panel of the woofer box and radiates sound waves toward the foot of the TV or the direction of the audience; the woofer is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in both directions, the surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a 180-degree phase angle, and the woofer is a kind of device with a resistive load characteristic or a resonant frequency F. o A dynamic speaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker causes the originally protruding magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnet" with the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the speaker magnetic gap and the consistency of the frequency response of the restored audio signal; the digital power amplifiers of the full-band speakers on the left and right sides of the TV are equipped with special DSP chips and written with algorithms to obtain a virtual surround sound effect that extends the left and right sound fields to about 1 meter away on the left or right side of the TV; h. A 3.1-channel theater system with high sensitivity, high fidelity and high resolution audio quality is composed of the left front surround speaker, center speaker, right front surround speaker and bass speaker of the TV.

[0014] At least three full-band speakers are arranged on the vertical center axis of the TV or on its left and right sides, one side of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of which is flexibly fixed to the outer contour surface of the bottom of the TV chassis; at least one full-band speaker (Full Range The full-band speaker is embedded and installed on the panel of the full-band speaker and radiates sound waves toward the viewer of the TV; the full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, and the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle, and the full-band speaker is a kind of speaker with a resistive load characteristic or a similar resistive load characteristic, a frequency A dynamic loudspeaker with a frequency response range of 110Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally convex magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the frequency response consistency of the restored audio signal; at least one bass speaker is arranged on the vertical central axis of the television or on its left and right sides, and its box body extends into the cavity formed by the television display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the television chassis and flush with the bottom of the full-band speaker; at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular bass speaker is embedded and installed on the panel of the bass speaker and radiates sound waves toward the foot of the television or the audience;The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower directions and in the left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the two groups of upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer has a resistive load characteristic or is similar to a resistive load characteristic and a resonant frequency F. oA dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally convex magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; on the wall behind the audience seats in the television broadcasting room, with the extension line of the vertical central axis of the television as the symmetry axis, and the intersection of the straight line extending upward at an angle of 15 degrees from the height of the auricle of the adult audience and the wall, there are two rear surround speakers symmetrically arranged on the left and right, and the bottom of the box is sucked and flexibly fixed to the wall; a digital audio signal wireless receiving template and a micro antenna, an audio digital power amplifier PCB board, an AC / DC power supply module are installed in the rear surround speaker, and a conical full-band speaker (Full Range The rear surround full-band speaker is embedded and installed on the panel of the rear surround sound box and radiates sound waves toward the audience of the TV; the rear surround full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, and the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower two groups of magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle, and the rear surround full-band speaker is a speaker with resistance A dynamic loudspeaker with a load characteristic or a characteristic similar to a resistive load characteristic and a frequency response range of 80Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally protruding magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the frequency response consistency of the restored audio signal; on the ceiling of the building above the auditorium of the screening hall, with the extension line of the vertical central axis of the TV set as the left-right symmetry axis and the horizontal central axis of the auditorium as the front-back symmetry axis, 4 symmetrically arranged ceiling speakers are arranged, a digital audio signal wireless receiving module and a micro-antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the ceiling speaker, and a conical full-band speaker (Full Range Speaker) is embedded and installed on the panel of the ceiling speaker and radiates sound waves toward the floor of the screening hall;The ceiling sound box full-band loudspeaker is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of vertically and horizontally symmetrical magnetic circuits and coil circuits, the surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle, the full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load characteristic and a frequency response range of 80Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged vertically are equipped in its magnetic circuit, the edge effect of the magnetic lines of force of the upper and lower magnetic gaps of the loudspeaker is in the "auxiliary magnets" Under the action of the magnetic field of the same polarity, the originally convex magnetic force lines are repelled and compressed, thereby maximally improving the uniformity and consistency of the magnetic force lines of the speaker magnetic gap and the consistency of the frequency response of the restored audio signal; the digital power amplifiers of the left front and right front surround speakers of the TV are equipped with special DSP chips and written with algorithms to obtain the virtual surround sound effect of extending the left and right sound fields to the left or right side of the TV about 1 meter away; the video signal and accompanying sound signal processor chipset (MCU) of the TV is equipped with a matching 5.1.4-channel Dolby surround sound or panoramic sound chip, and the digital audio voltage signals of the corresponding left rear surround speaker, right rear surround speaker, and 4 ceiling speakers are connected to the corresponding audio signal wireless transmission module and micro antenna; the left front surround speaker, center speaker, right front surround speaker, bass speaker, left rear surround speaker, right rear surround speaker and 4 ceiling speakers of the TV constitute a 5.1.4 / 5.2.4-channel three-dimensional cinema system with high sensitivity, high fidelity and high resolution audio quality. ;

[0015] At least three full-band speakers are arranged on the vertical center axis of the TV or on its left and right sides, one side of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of which is flexibly fixed to the outer contour surface of the bottom of the TV chassis; at least one full-band speaker (Full Range The full-band speaker is embedded and installed on the panel of the full-band speaker and radiates sound waves toward the viewer of the TV; the full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, and the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle, and the full-band speaker is a kind of speaker with a resistive load characteristic or a similar resistive load characteristic, a frequency A dynamic loudspeaker with a response range of 110Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally convex magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; at least one bass speaker is arranged on the vertical central axis of the television or on its left and right sides, and its box body extends into the cavity formed by the television display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the television chassis and flush with the bottom structure of the full-band speaker; at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular bass speaker is embedded and installed on the panel of the bass speaker and radiates sound waves toward the foot of the television or the audience;The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower directions and in the left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the two groups of upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer has a resistive load characteristic or is similar to a resistive load characteristic and a resonant frequency F. oA dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally convex magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; on the wall behind the audience seats in the television broadcasting room, with the extension line of the vertical central axis of the television as the symmetry axis, and the intersection of the straight line extending upward at an angle of 15 degrees from the height of the auricle of the adult audience and the wall, there are two rear surround speakers symmetrically arranged on the left and right, and the bottom of the box is sucked and flexibly fixed to the wall; a digital audio signal wireless receiving template and a micro antenna, an audio digital power amplifier PCB board, an AC / DC power supply module are installed in the rear surround speaker, and a conical full-band speaker (Full Range The conical full-band speaker is embedded and installed on the panel of the rear surround sound box and radiates sound waves toward the audience of the TV; the conical full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, and the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle, and the rear surround full-band speaker is a speaker with a resistive load characteristic. A dynamic loudspeaker having a characteristic similar to or similar to a resistive load characteristic and a frequency response range of 80Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally protruding magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; on the left and right walls of the auditorium of the TV broadcasting room, two left and right surround sound boxes arranged symmetrically are arranged at the intersection of a straight line extending upward at an angle of 15 degrees from the height of the auricle of the adult audience and the walls on both sides, and the bottom of the box is sucked and flexibly fixed to the wall; a digital audio signal wireless receiving template and a micro antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the left and right surround sound boxes, and a conical full-band speaker (Full Range Speaker) is embedded and installed on the panel of the left and right surround sound boxes and radiates sound waves toward the audience of the TV;The conical full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The left and right surround full-band loudspeaker is a kind of speaker with a resistive load characteristic or a similar resistive load characteristic and a frequency response range. A dynamic loudspeaker with a frequency range of 80Hz--25kHz, when a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker causes the originally convex magnetic force lines to be repelled and compressed under the action of the magnetic field of the "auxiliary magnets" of the same polarity, thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; on the ceiling of the building above the auditorium of the screening hall, with the extension line of the vertical central axis of the TV as the left-right symmetry axis and the horizontal central axis of the auditorium as the front-back symmetry axis, there are 4 symmetrically arranged ceiling speakers, a digital audio signal wireless receiving module and a micro-antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module installed in the ceiling speaker, and a conical full-band speaker (Full Range Speaker) is embedded and installed on the panel of the ceiling speaker and radiates sound waves toward the floor of the screening hall;The ceiling sound box full-band loudspeaker is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary When the "magnetic field" is connected to the upper and lower magnetic gaps of the speaker, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker is repelled and compressed under the action of the magnetic field of the same polarity of the "secondary magnetic field", thereby maximally improving the uniformity and consistency of the magnetic force lines of the speaker magnetic gap and the frequency response consistency of the restored audio signal; a 7.1.4 / 7.2.4-channel Dolby surround sound or panoramic sound chip is provided in the video signal and audio signal processor chipset (MCU) of the television, and the digital audio voltage signals of the left surround speaker, the right surround speaker, the left rear surround speaker, the right rear surround speaker, and the four ceiling speakers are connected to the corresponding 8 groups of audio signal wireless transmission modules and micro antennas; the left front surround speaker, the center speaker, the right front surround speaker, the bass speaker, the left surround speaker, the right surround speaker, the left rear surround speaker, the right rear surround speaker and the four ceiling speakers of the television constitute a 7.1.4 / 7.2.4-channel three-dimensional cinema system with high sensitivity, high fidelity and high resolution audio quality.

[0016] When the TV screening room has a smaller building area and space volume, the ceiling speakers can be reduced to two, which are distributed on the left and right sides of the intersection of the extension line of the central axis of the TV and the central axis of the auditorium in the screening room. The left front surround speaker, the center speaker, the right front surround speaker, the subwoofer, the left rear surround speaker, the right rear surround speaker and the two ceiling speakers constitute a 5.1.2-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality.

[0017] When the TV screening room has a smaller building area and space volume, the ceiling speakers can be reduced to two, which are distributed on the left and right sides of the intersection of the extension line of the central axis of the TV and the central axis of the auditorium in the screening room. The left front surround speaker, the center speaker, the right front surround speaker, the bass speaker, the left surround speaker, the right surround speaker, the left rear surround speaker, the right rear surround speaker and the two ceiling speakers constitute a 7.1.2-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality.

[0018] The boxes of the full-band speakers, bass speakers, surround speakers and ceiling speakers are all made of non-magnetic rigid materials.

[0019] The full-band sound box and the bass sound box of the television are provided with a mesh cover made of a rigid material which matches the outer contour surface of the bottom of the television, and a "V ORGN" trademark is provided at a prominent position thereof. Description of the drawings:

[0020] Figure 1 . Schematic diagram of the plane installation of the traditional TV 2.0 channel sound system;

[0021] Figure 2 .Side elevation installation diagram of a traditional TV 2.0-channel sound system;

[0022] Figure 3 . Schematic diagram of embodiment 1 of a television 2.1-channel theater system with high sensitivity, high fidelity and high resolution audio quality;

[0023] Figure 4 . A schematic cross-sectional view of a 2.1-channel television theater system with high sensitivity, high fidelity, and high resolution audio quality;

[0024] Figure 5 . Schematic diagram of embodiment 2 of a 3.2-channel television theater system with high sensitivity, high fidelity and high resolution audio quality;

[0025] Figure 6 . A schematic cross-sectional view of a 3.2-channel television theater system with high sensitivity, high fidelity, and high resolution audio quality;

[0026] Figure 7 . A schematic diagram of the structure of a full-band speaker embodiment 3 having a racetrack-shaped dynamic speaker;

[0027] Figure 8 . A schematic diagram of the structure of a bass speaker embodiment 4 having a racetrack-shaped dynamic speaker;

[0028] Fig. 9 . Schematic diagram of embodiment 5 of a 2.1-channel theater system with two bass speakers;

[0029] Fig.10 . Schematic diagram of embodiment 6 of a television 2.1-channel theater system with high sensitivity, high fidelity and high resolution audio quality;

[0030] Fig.11 . Schematic diagram of embodiment 7 of a television 3.1-channel theater system with high sensitivity, high fidelity and high resolution audio quality;

[0031] Fig.12 . Schematic diagram of embodiment 8 of a television 5.2.4-channel cinema system with high sensitivity, high fidelity and high resolution audio quality;

[0032] Fig.13 . Schematic diagram of embodiment 9 of a television 7.2.4-channel cinema system with high sensitivity, high fidelity and high resolution audio quality;

[0033] Fig.14 . Schematic diagram of embodiment 10 of a television 7.2.4-channel theater system with high sensitivity, high fidelity and high resolution audio quality;

[0034] Fig.15 .Schematic diagram of the fringe magnetic field effect of the magnetic gap of a dynamic loudspeaker;

[0035] Fig.16 .US invention patent US149797FIG2;

[0036] Fig.17 .Simulation diagram of the patented magnetic circuit of the external magnetic dynamic speaker.

[0037] The corresponding relationship between the main components and reference numerals in the accompanying drawings of the present invention is as follows:

[0038] 1----TV; 2----TV frame or outer edge 3----Cavity; 4----TV back cover;

[0039] 5----TV cavity side cover; 6----Dynamic speaker and sound box; 7-----Cavity ventilation and heat dissipation holes;

[0040] 8----the direction of sound wave radiation from the speaker or sound box; 9----the base of the TV; 10----the sofa chairs in the auditorium;

[0041] 11----TV projection room wall diagram; 61----Full-band speaker; 611----Full-band speaker panel;

[0042] 612----racetrack-shaped full-band speaker; 613----full-band speaker air outlet; 614-flexible pad;

[0043] 62----subwoofer; 621----subwoofer panel; 622----racetrack woofer;

[0044] 61-1----Left front surround speaker; 61-2----Right front surround speaker; 63----Center speaker;

[0045] 64-1----left rear surround speaker; 64-2----right rear surround speaker; 65-1----left surround speaker;

[0046] 65-2----right surround speaker; 66----ceiling speaker; DETAILED DESCRIPTION

[0047] Figure 1 Figure 2 The schematic diagram of the structure of the 2.0-channel sound system of a conventional television is shown, which is the simplest and most traditional sound design scheme for existing televisions. A narrow cavity is formed horizontally between the television display screen and the main board and the plastic back cover of the television at the lower end of the television, and two full-band speaker boxes are arranged on the left and right sides of the cavity, and at least one small-caliber conical or racetrack-shaped dynamic full-band speaker is arranged in the box, and its air outlet is usually arranged on the plastic cover of the chassis at the lower end of the television. When the TV is placed on a common TV cabinet, the sound waves 8 output by the full-band speaker box will be vertically directed to the smooth and flat cabinet surface of the TV cabinet, and its reflected waves will be directed to the sound box outlet of the radiation sound source at an angle of 180 degrees again, and then the speaker box will radiate a new round of sound waves 8 to the smooth and flat cabinet surface of the TV cabinet. Under the interaction of appropriate frequency, distance and field strength, the previous round of reflected waves and the new round of radiation waves may produce wave interference, so that very sensitive TV viewers will hear a very strange sound that is not included in the normal broadcast program. In order to meet the ultra-thin design requirements of the TV, the thickness of the lower end of the TV where the speaker box is installed is generally about 30-40mm thick. The audio power consumption of the TV is generally 4-30W, and it will be expanded to about 60W for a large-screen TV with a 2.1-channel audio system.

[0048] Figure 3 Figure 4The schematic diagram of the embodiment 1 of the 2.1-channel theater system of a television with high sensitivity, high fidelity and high resolution audio quality is shown. This is the basic technical solution of a built-in television theater system provided by the present invention: the cavity 3 between the television display screen 1 and the main board and the television plastic back cover 4 is widened to 40-60mm and deepened to a sufficient width (for example, 250-300mm). Assuming that the television has an 85-inch large screen, its long side dimension is 1881.6mm and its short side dimension is 1048.4mm, the total air volume of the cavity can be equal to 15-20L, and 4-5 open-type speakers with a volume of 1-3L can be comfortably arranged in this volume, thereby laying the necessary physical foundation for completely changing the traditional television sound system, which has insufficient fullness and softness in the mid-range, and the bass dive and shock force are obviously insufficient. In this embodiment, a flat bass speaker 62 made of a rigid plastic plate is provided at the vertical center axis YY of the television 1. The outer shell of the speaker is flexibly fixed to the structural plane of the cavity, and its speaker panel 621 is flush with the outer contour surface of the lower end structure or the frame of the television. At least one dynamic bass speaker in the shape of a racetrack or a racetrack-like shape, an elliptical or an elliptical, a rectangular or a rectangular shape is embedded in the bass speaker panel 621. Figure 8 As shown. The racetrack-shaped speaker 622 and the air outlet 623 of the bass speaker radiate sound waves 82 toward the foot 9 of the TV and the TV cabinet (omitted in the figure). Two full-band speakers are provided at the left and right ends of the cavity 3, one 61-1 is a left front surround speaker, and the other 61-2 is a right front surround speaker, and the box shell 61 thereof is flexibly fixed to the structural plane of the cavity through a flexible pad 614. The other side of the box of the left and right front surround speakers 61-1 and 61-2 is rotated 90 degrees and then extended out and flexibly fixed to the outer contour surface of the lower end of the TV, and at least one full-band (Full Range Speaker) dynamic speaker in the shape of a racetrack or similar to a racetrack, an elliptical or similar to an elliptical, a rectangular or similar to a rectangular shape is embedded in the speaker panel 611, such as Figure 7 As shown, the speakers 612 and the air outlets 613 of the left and right front surround speakers radiate sound waves toward the audience. Since the radiated sound waves of the full-band surround speakers cannot be reflected by the flat and smooth cabinet surface of the TV, this technical solution solves the wave interference phenomenon that once existed in traditional TVs.

[0049] Figure 5 Figure 6A schematic diagram of Example 2 of a 3.2-channel theater system for a television with high sensitivity, high fidelity and high resolution audio quality is shown. This is a new technical solution that is further expanded on the basis of Example 1 of the present invention. In this embodiment, a center speaker 63 made of a rigid plastic plate is provided at the vertical center axis YY of the television 1, and two left front surround speakers 61-1 and two right front surround speakers 61-2 are provided at the left and right ends of the cavity 3, respectively. The center speaker and the left and right front surround speakers are the same as the full-band speakers of Example 1 of the present invention, and at least one full-band (FullRange Speaker) dynamic speaker in the shape of a racetrack or similar to a racetrack, an elliptical or similar to an elliptical, a rectangular or similar to a rectangular shape is embedded in the speaker panel 611, such as Figure 6 Figure 7 Two bass speakers 62-1 and 62-2 are respectively arranged on the left and right sides of the center speaker 63, and their structure and installation method are exactly the same as those of the bass speakers in Example 1. This Example 2 is mainly aimed at large-screen TVs of 85-100 inches or TV theater systems that combine wall-mounted surround speakers and ceiling speakers in the theater to form more channels.

[0050] Figure 7 The schematic diagram of the structure of the full-band sound box embodiment 3 with a racetrack-shaped dynamic speaker is shown. In order to minimize the thickness of the protruding plastic back cover of the TV, the width of the racetrack-shaped dynamic speaker in the short axis direction of the embodiment 3 is generally not more than 40-50mm, and the length in the long axis direction is generally not more than 120mm. The dynamic speaker embedded in the full-band sound box panel has an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than 100mm. In the stroke of the speaker, the absolute values ​​of the number of turns, winding tension, resistance and inductance of the two sets of coils are equal to each other and connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) and back electromotive force (BEMF) generated when reciprocating in the magnetic gap of the two sets of coils of the full-band speaker cancel each other out due to the 180-degree phase angle. The full-band speaker is an internal magnetic dynamic speaker with a resistive load characteristic or a resistive load characteristic similar to a resistive load characteristic, with a frequency response range of 110Hz--25kHz, a sensitivity SPL>86dB / 1W / 1m, and a total harmonic distortion THD<3%. For specific implementation methods, please refer to the claims and the appendix of the specification of the Chinese invention patent CN200810169693.1 held by the applicant of this case. Figure 6 , Figure 7 And the claims of the U.S. invention patent US9277325B2 and the specification attached with the embodiment descriptions such as Fig. 4 and Fig. 5.

[0051] Figure 8 The schematic diagram of the structure of the bass speaker embodiment 4 with a racetrack-shaped dynamic speaker is shown. In order to minimize the thickness of the protruding plastic back cover of the television, the width of the racetrack-shaped dynamic speaker in the short axis direction of the embodiment 4 is generally not more than 40-50mm, and the length in the long axis direction is generally not more than 120mm. The dynamic speaker embedded in the panel of the bass speaker has an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the gap length reserved between the two groups of coils is The stroke of the speaker is greater than the stroke of the speaker. The absolute values ​​of the number of turns, winding tension, resistance and inductance of the two sets of coils are equal to each other and connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two sets of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to the 180-degree phase angle. The bass speaker is an internal magnetic dynamic speaker with a resistive load characteristic or a resistive load characteristic similar to a resistive load characteristic, with a frequency response range of 80Hz--2kHz, a sensitivity SPL>88dB / 1W / 1m, and a total harmonic distortion THD<3%. For specific implementation methods, please refer to the claims and the appendix to the specification of the Chinese invention patent CN200810169693.1 held by the applicant of this case. Figure 6 , Figure 7 And the claims of the U.S. invention patent US9277325B2 and the specification attached with the embodiment descriptions such as Fig. 4 and Fig. 5.

[0052] Fig. 9 The schematic diagram of the embodiment 5 of the 2.1-channel cinema system with two bass speakers is shown. Since the bass speaker of the embodiment of the present invention adopts a narrow racetrack-shaped, elliptical or short-shaped dynamic speaker, its width in the short axis direction is only 40-56mm, so the equivalent air volume is much smaller than that of a conical speaker, and the bass sound field generated is not strong enough. Therefore, for a large-screen TV, it is sometimes necessary to set two bass speakers 62 on both sides of the vertical center axis of the TV, and the rest are connected to the woofer. Figure 3 The embodiments are exactly the same and will not be repeated.

[0053] Fig.10The schematic diagram of the embodiment 6 of the TV 2.1 channel home theater system with high sensitivity, high fidelity and high resolution audio quality is shown. The plane boundary 11 of the TV projection room is temporarily set as a family living room with a width of 3500mm and a length of 4500mm. The TV 1 is set against the wall, and its vertical center axis YY coincides with the 1 / 2 bisector of the 3.5-meter-wide wall of the projection room. The 1 / 2 bisector of the auditorium (sofa chair) is 1.5 meters away from the rear wall. A left front surround speaker 61-1, a bass speaker 62 and a right front surround speaker 61-2 are arranged in the cavity of the TV. At least one racetrack-shaped dynamic speaker is embedded on the speaker panel. Its power supply and power amplifier circuit can be directly supplied by the MCU and the accompanying sound circuit of the TV mainboard. At this time, the speakers are all passive speakers. However, each speaker can also be designed as an active speaker with its own digital amplifier, virtual surround sound field DSP chip and dedicated algorithm. Since the above two settings are both existing technologies, detailed descriptions are omitted. Therefore, this embodiment constitutes a TV theater system with 2.1 channels.

[0054] Fig.11 The schematic diagram of embodiment 7 of a 3.1-channel theater system for a television with high sensitivity, high fidelity and high resolution audio quality is shown. A left front surround speaker 61-1, two bass speakers 62-1 and 62-2, and a right front surround speaker 61-2 are arranged in the cavity of the television, which is more suitable for 75-100 inch large-screen televisions that have higher requirements for bass sound quality and volume. At this time, the resonance frequency Fo of the bass speaker can reach 80Hz, and because it has a resistive load characteristic or a characteristic similar to a resistive load characteristic, it will completely change the muddy sound effect of the traditional bass speaker.

[0055] Fig.12The schematic diagram of the embodiment 8 of the television 5.2.4 / 5.1.4 channel theater system with high sensitivity, high fidelity and high resolution audio quality is shown. The television 1 is placed against a wall, and a left front surround speaker 61-1, two bass speakers 62-1 and 62-2, and a right front surround speaker 61-2 are arranged in the cavity, which is more suitable for 75-100 inch large-screen televisions that have higher requirements for bass sound quality and volume. On the wall behind the audience seats in the TV projection room, with the extension line of the vertical central axis of the TV as the symmetry axis, a left rear surround speaker 61-3 and a right rear surround speaker 61-4 are arranged symmetrically at the intersection of the straight line extending upward at an angle of 15 degrees from the height of the adult audience's auricle, and the bottom of the box is sucked and flexibly fixed to the wall, a digital audio signal wireless receiving template and a micro antenna, an audio digital power amplifier PCB board, an AC / DC power supply module are installed in the rear surround speakers, and a conical full-band speaker (Full Range The conical full-band speaker is embedded and installed on the panel of the rear surround sound box and radiates sound waves toward the audience of the television; the conical full-band speaker is a dynamic speaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions, the surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower two groups of magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other, and the length of the gap reserved between the two groups of coils is greater than the stroke of the speaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band speaker and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other due to a phase angle of 180 degrees, and the rear surround full-band speaker is an external magnet dynamic speaker with a resistive load characteristic or a characteristic similar to a resistive load characteristic and a frequency response range of 80Hz--25kHz. In addition, in the present embodiment, four ceiling speakers 65 are provided on the ceiling above the auditorium of the screening hall, and the bottom of the speakers is sucked and flexibly fixed to the ceiling. The internal configuration of the ceiling speakers 65 is exactly the same as that of the left and right rear surround speakers. Both types of speakers are provided with a 4-inch external magnetic dynamic speaker, whose SPL is equal to or greater than 91dB / 1W / 1m, and the total harmonic distortion THD is less than or equal to 3%. The average power consumption of each speaker is less than 2.5W, thereby constructing a 5.2.4 / 5.1.4-channel cinema system with a three-dimensional space, which will not be repeated one by one in this embodiment 8.

[0056] Fig.13The schematic diagram of Example 9 of a 7.2.4 / 7.1.4 channel three-dimensional cinema system for a television with high sensitivity, high fidelity and high resolution audio quality is shown. The difference between Example 9 and Example 8 is that: on the left and right walls of the audience seats of the television broadcasting room, a left surround speaker 65--1 and a right surround speaker 65--2 are arranged symmetrically at the intersection of a straight line extending upward at an angle of 15 degrees from the height of the adult audience's auricle and the two side walls, and the bottom of the box is sucked and flexibly fixed to the two side walls. The technical solutions of the three external speakers are exactly the same, thereby constructing a three-dimensional space cinema system with 7.2.4 / 7.1.4 channels, and this Example 9 will not be repeated one by one.

[0057] Fig.14 The schematic diagram of the embodiment 10 of the television 7.2.4 channel theater system with high sensitivity, high fidelity and high resolution audio quality is shown. Because the building area or space volume of the television theater is sometimes small, the number of ceiling speakers is reduced from 4 to 2. The rest are the same as Fig.12 and Fig.13 The above are exactly the same, and this embodiment 10 will not be repeated one by one.

[0058] Fig.15 The figure shows the edge magnetic field effect of the magnetic gap of a dynamic loudspeaker. This figure is from the "Loudspeaker Design Cookbook" published by People's Posts and Telecommunications Press in July 2014. th The figure is reproduced from the figure 0.2 on the upper left corner of page 3 of the Chinese version of the book "Dynamic Speaker" by Vance Dickason of the United States, translated by Wang Jingyuan and Yu Changliang, and reviewed by Wang Yizhen. It can be seen from the figure that the magnetic gap of the dynamic speaker (called the dynamic speaker in the book) is distributed with three groups of symmetrical magnetic lines of force, the upper, middle and lower groups. The middle group is a straight main magnetic line of force. The magnetic lines of force on the upper and lower sides are repelled by the same polarity of the main magnetic line of force and the poor magnetic conductivity of the air to form a curved shape protruding outward, which is called the fringe magnetic field (Fringe Field effect). The inventor of this case believes that: Fig.15 Although the edge magnetic field curve shown is a bit exaggerated, in general, among the three groups of magnetic lines, the magnetic flux density of the central main magnetic lines should be much higher than the magnetic flux density of the edge magnetic lines on the upper and lower sides. In particular, the bottom group of edge magnetic lines can be simulated by the loudspeaker magnetic circuit simulation software to degenerate into very weak leakage magnetic lines and be ignored.

[0059] Fig.16FIG2 of the US invention patent US149797 is shown. This is the US invention patent application US149797 submitted by the famous German scientist Dr. ERNSTWERNER SIEMENS to the US Patent Office in 1874. Figure 2 Reproduction diagram of the embodiment. From the full text of US149797 (omitted in the present invention), it can be seen that this is a patent document on a telegraph device invented by Dr. SIEMENS, which was granted the US invention patent (and German invention patent) in 1887. Fig.16 It can be seen that the core content of the invention of US149797 is a toroidal coil set in a magnetic gap, which interacts with the permanent magnetic field lines in the magnetic gap when the current is turned on, thereby driving the coil to move up and down and driving the relay contacts of the telegraph device to connect or disconnect. Around the 1920s, an American company applied the Lorentz force driving device invented by Dr. SIEMENS to the conical paper cone loudspeaker invented by the company as a driving device, making the dynamic loudspeaker an important invention that promotes the great scientific and technological progress of human civilization. Dr. SIEMENS was thus unanimously recognized as the inventor of the dynamic loudspeaker.

[0060] However, when a conventional coil (voice coil) is inserted into the annular magnetic gap of a loudspeaker and an audio current is input into the coil, the present invention Fig.15 The coil will obtain three sets of Lorentz forces with different frequencies and corresponding audio restoration signals, namely, Fig.15 The first and third audio restoration signals are obtained by the Lorentz force generated by the interaction between the magnetic field lines at the upper and lower edges of the coil and the speaker diaphragm vibrating, and the second audio restoration signal is obtained by the Lorentz force generated by the interaction between the same coil and the main magnetic field lines in the center of the magnetic gap and the corresponding speaker diaphragm vibration. Obviously, this is a specific physical phenomenon that does not conform to objective facts: because at a certain moment only "one" audio signal is fed into the coil, but three groups of magnetic field lines are generated in the magnetic gap of the speaker, interacting with the coil respectively, thereby generating three corresponding Lorentz forces and three audio restoration signals. However, this specific physical phenomenon does not exist at all for the US149797 telegraph device invented by Dr. SIEMENS. Because the directions of one Lorentz force or three Lorentz forces are the same, they act on the same direction. Fig.16 The purpose of the relay contacts of a telegraph device has remained unchanged.

[0061] Fig.17The patent magnetic circuit simulation diagram of an external magnetic dynamic loudspeaker held by the applicant of this case is shown. It can be seen from the figure that the main magnetic lines of force in the magnetic gap are not parallel to each other as the central magnetic lines of force shown in Figure 0.2 of the "Loudspeaker System Design Manual". Under the action of the magnetic field of the same polarity, the magnetic lines of force on the upper and lower sides of the central magnetic line group also tend to be slightly inclined. At this time, the magnetic flux density of the edge magnetic field lines on the upper side of the magnetic gap is lower than the magnetic flux density of the central main magnetic line of force. The magnetic line of force of the lower edge magnetic field can be made to reach a level of negligible leakage magnetic field through magnetic circuit simulation software. Therefore, the world's technical problem that has been unsolved for more than 100 years and has been generated when the Lorentz force drive device invented by Dr. SIEMENS is applied to the dynamic speaker driver has finally obtained a brand new solution: a pair of "auxiliary magnets" symmetrically arranged up and down are added to the magnetic circuit of the dynamic speaker, and the size of the magnetic yoke and the size of the "auxiliary magnets" and their magnetic energy product are appropriately selected through the loudspeaker magnetic circuit simulation software, so that the edge magnetic field magnetic lines of force of the upper and lower magnetic gaps of the speaker are repelled and compressed by the magnetic field of the "auxiliary magnets" with the same polarity, and merged with the central main magnetic lines of force, thereby maximally improving the uniformity and consistency of the magnetic lines of force of the loudspeaker magnetic gap and the consistency of the frequency response when restoring the audio signal. Undoubtedly, this is a major change implemented by the present invention in the existing electroacoustic technology field for the dynamic speaker invented by Siemens.

[0062] Finally, it should be pointed out that it is an existing technology to set Dolby surround sound or panoramic sound chip and wireless audio circuit on the TV motherboard through the MCU's accompanying sound circuit or HDMI interface. This technology combined with the 2.1 channels, 3.1 channels, 5.1.4 / 5.2.4 / 5.1.2 channels, 7.1.4 / 7.2.4 / 7.1.2 channels provided by the present invention can constitute one or another TV theater system embodiment with high sensitivity, high fidelity and high resolution audio quality, but they are all completely under the cross protection of the claims of the present invention.

Claims

1. A television theater system with high sensitivity, high fidelity and high resolution audio quality, comprising an AC / DC power supply module, a video signal and accompanying audio signal processor and a memory chipset (MCU), a coaxial cable interface, an optical fiber interface, an HDMI interface, a DAC, a digital power amplifier, a dynamic speaker and a sound box, an audio signal wireless transmission and reception module, a PCB board, a connector and a connecting wire, characterized by: a. At least two full-range speakers are provided on the left and right sides of the vertical central axis of the TV, one side of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of which is flexibly fixed to the outer contour surface of the bottom of the TV chassis; b. at least one full-range speaker in the shape of a racetrack or a racetrack-like shape / elliptical or an elliptical shape / rectangular or a rectangular shape is embedded and mounted on the panel of the full-range speaker and radiates sound waves toward the viewer of the TV; c. The full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker The back electromotive force (BEMF) generated when the speaker reciprocates in the magnetic gap cancels each other out due to the 180-degree phase angle. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines in the magnetic gap of the loudspeaker and the consistency of the frequency response of the restored audio signal. d. At least one bass speaker is provided on the vertical center axis of the TV or on its left and right sides, the body of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the TV chassis and flush with the bottom structure of the full-band speaker; e. at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular-like bass speaker is embedded and mounted on the panel of the bass box and radiates sound waves toward the foot of the TV or the direction of the audience; f. The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer is a kind of dynamic loudspeaker with a resistive load characteristic or a resonant frequency F that is similar to a resistive load characteristic. o For a dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are provided in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; g. The digital power amplifiers of the full-band speakers on the left and right sides of the TV are equipped with a dedicated DSP chip and written with an algorithm to obtain a virtual surround sound effect that extends the left and right sound fields to about 1 meter away from the left or right side of the TV; h. The left front surround speaker, the right front surround speaker and the bass speaker of the TV set form a 2.1-channel home theater system with high sensitivity, high fidelity and high resolution audio quality.

2. A television theater system with high sensitivity, high fidelity and high resolution audio quality, comprising an AC / DC power supply module, a video signal and accompanying audio signal processor and a memory chipset (MCU), a coaxial cable interface, an optical fiber interface, an HDMI interface, a DAC, a digital power amplifier, a dynamic speaker and a sound box, an audio signal wireless transmission and reception module, a PCB board, a connector and a connecting wire, characterized by: a. At least three full-band speakers are provided on the vertical center axis of the TV or on its left and right sides, one side of the speaker extends into the cavity formed by the TV display and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of the speaker is flexibly fixed to the outer contour surface of the bottom of the TV chassis; b. at least one full-range speaker in the shape of a racetrack or a racetrack-like shape / elliptical or an elliptical shape / rectangular or a rectangular shape is embedded and mounted on the panel of the full-range speaker and radiates sound waves toward the viewer of the TV; c. The full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are ) and the back electromotive force (BEMF) generated during the reciprocating motion in the magnetic gap cancel each other out due to the 180-degree phase angle. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines in the magnetic gap of the loudspeaker and the consistency of the frequency response of the restored audio signal; d. At least one bass speaker is provided on the vertical center axis of the TV or on its left and right sides, the box body of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the TV chassis and flush with the bottom structure of the full-band speaker; e. at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular-like bass speaker is embedded and mounted on the panel of the bass box and radiates sound waves toward the foot of the TV or the direction of the audience; f. The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer is a kind of dynamic loudspeaker with a resistive load characteristic or a resonant frequency F that is similar to a resistive load characteristic. o For a dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are provided in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; g. The digital power amplifiers of the full-band speakers on the left and right sides of the TV are equipped with a dedicated DSP chip and written with an algorithm to obtain a virtual surround sound effect that extends the left and right sound fields to about 1 meter away from the left or right side of the TV; h. The left front surround speaker, center speaker, right front surround speaker and bass speaker of the TV set form a 3.1-channel theater system with high sensitivity, high fidelity and high resolution audio quality.

3. A television theater system with high sensitivity, high fidelity and high resolution audio quality, comprising an AC / DC power supply module, a video signal and audio signal processor and a memory chipset (MCU), a coaxial cable interface, an optical fiber interface, an HDMI interface, a DAC, a digital power amplifier, a dynamic speaker and a sound box, an audio signal wireless transmission and reception module, a PCB board, a connector and a connecting wire, characterized by: a. At least three full-band speakers are provided on the vertical center axis of the TV or on its left and right sides, one side of which extends into the cavity formed by the TV display and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of which is flexibly fixed to the outer contour surface of the bottom of the TV chassis; b. at least one full-range speaker in the shape of a racetrack or a racetrack-like shape / elliptical or an elliptical shape / rectangular or a rectangular shape is embedded and mounted on the panel of the full-range speaker and radiates sound waves toward the viewer of the TV; c. The full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are ) and the back electromotive force (BEMF) generated during the reciprocating motion in the magnetic gap cancel each other out due to the 180-degree phase angle. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; d. At least one bass speaker is provided on the vertical center axis of the television or on its left and right sides, the body of which extends into the cavity formed by the television display and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the television chassis and flush with the bottom of the full-band speaker; e. at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular-like bass speaker is embedded and mounted on the panel of the bass box and radiates sound waves toward the foot of the TV or the direction of the audience; f. The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower directions and in the left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the two groups of upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer is a kind of dynamic loudspeaker with a resistive load characteristic or a resonant frequency F that is similar to a resistive load characteristic. o For a dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are provided in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; g. On the wall behind the audience seats in the TV projection room, with the extension line of the vertical center axis of the TV as the symmetry axis, two rear surround speakers are arranged symmetrically at the intersection of the straight line extending upward at an angle of 15 degrees from the height of the adult audience's auricle and the wall, and the bottom of the box is sucked and flexibly fixed to the wall; h. A digital audio signal wireless receiving template and a miniature antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the rear surround sound box, and a conical full-range speaker (Full Range Speaker) is embedded and installed on the panel of the rear surround sound box and radiates sound waves toward the audience of the TV; i. The rear surround full-band loudspeaker is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are The back electromotive force (BEMF) generated during the reciprocating motion in the magnetic gap cancels each other out due to the 180-degree phase angle. The rear surround full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; j. On the ceiling of the building above the auditorium, with the extension of the vertical center axis of the TV set as the left-right symmetry axis and the horizontal center axis of the auditorium as the front-back symmetry axis, four evenly arranged ceiling speakers are arranged. A digital audio signal wireless receiving module and a micro-antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the ceiling speakers. A conical full-range speaker is embedded in the panel of the ceiling speaker and radiates sound waves toward the floor of the auditorium. K. The ceiling speaker full-band loudspeaker is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of vertically and horizontally symmetrical magnetic circuits and coil circuits, the surface field strength of the pole faces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other, the winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker, the number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series, the impedance value, self-inductance potential (Lenz induction) of the two groups of coils of the full-band loudspeaker The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; l. The digital power amplifiers of the left front and right front surround speakers of the TV are equipped with a dedicated DSP chip and written with an algorithm to obtain a virtual surround sound effect that extends the left and right sound fields to about 1 meter away from the left or right side of the TV; m. The video signal and audio signal processor chipset (MCU) of the television is provided with a matching 5.1.4-channel Dolby surround sound or panoramic sound chip, and the digital audio voltage signals of the corresponding left rear surround speaker, right rear surround speaker, and 4 ceiling speakers are connected to the corresponding audio signal wireless transmission module and micro antenna; n. The TV's left front surround speaker, center speaker, right front surround speaker, subwoofer, left rear surround speaker, right rear surround speaker and four ceiling speakers form a 5.1.4 / 5.2.4-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality.

4. A television theater system with high sensitivity, high fidelity and high resolution audio quality, comprising an AC / DC power supply module, a video signal and audio signal processor and a memory chipset (MCU), a coaxial cable interface, an optical fiber interface, an HDMI interface, a DAC, a digital power amplifier, a dynamic speaker and a sound box, an audio signal wireless transmission and reception module, a PCB board, a connector and a connecting wire, characterized by: a. At least three full-band speakers are provided on the vertical center axis of the TV or on its left and right sides, one side of which extends into the cavity formed by the TV display and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the other side of which is flexibly fixed to the outer contour surface of the bottom of the TV chassis; b. at least one full-range speaker in the shape of a racetrack or a racetrack-like shape / elliptical or an elliptical shape / rectangular or a rectangular shape is embedded and mounted on the panel of the full-range speaker and radiates sound waves toward the viewer of the TV; c. The full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are ) and the back electromotive force (BEMF) generated during the reciprocating motion in the magnetic gap cancel each other out due to the 180-degree phase angle. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 110Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; d. At least one bass speaker is provided on the vertical center axis of the TV or on its left and right sides, the body of which extends into the cavity formed by the TV display screen and the rear cover of the chassis and is flexibly fixed on the corresponding structural plane, and the panel of the bass speaker is arranged near the bottom of the TV chassis and flush with the bottom structure of the full-band speaker; e. at least one racetrack-shaped or racetrack-like / elliptical or elliptical / rectangular or rectangular-like bass speaker is embedded and mounted on the panel of the bass box and radiates sound waves toward the foot of the TV or the direction of the audience; f. The woofer is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower directions and in the left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the two groups of upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the woofer and the back electromotive force (BEMF) generated when the two groups of coils reciprocate in the magnetic gap cancel each other out due to a phase angle of 180 degrees. The woofer is a kind of dynamic loudspeaker with a resistive load characteristic or a resonant frequency F that is similar to a resistive load characteristic. o For a dynamic loudspeaker with a frequency of ≤80Hz, when a pair of "auxiliary magnets" symmetrically arranged up and down are provided in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; g. On the wall behind the audience seats in the TV projection room, with the extension line of the vertical center axis of the TV as the symmetry axis, two rear surround speakers are arranged symmetrically at the intersection of the straight line extending upward at an angle of 15 degrees from the height of the adult audience's auricle and the wall, and the bottom of the box is sucked and flexibly fixed to the wall; h. A digital audio signal wireless receiving template and a miniature antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the rear surround sound box, and a conical full-range speaker (Full Range Speaker) is embedded and installed on the panel of the rear surround sound box and radiates sound waves toward the audience of the TV; The conical full-band loudspeaker is a dynamic loudspeaker with a double-magnetic-gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are ) and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle. The rear surround full-band speaker is a dynamic speaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the speaker is repelled and compressed by the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the speaker magnetic gap and the consistency of the frequency response of the restored audio signal; J. On the left and right walls of the audience seats in the TV broadcasting room, two left and right surround sound boxes are arranged symmetrically at the intersection of a straight line extending upward at an angle of 15 degrees from the height of the adult audience's auricle and the two side walls, and the bottoms of the boxes are sucked and flexibly fixed to the walls; k. A digital audio signal wireless receiving template and a micro antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module are installed in the left and right surround sound boxes, and a conical full-range speaker (Full Range Speaker) is embedded and installed on the panels of the left and right surround sound boxes and radiates sound waves toward the audience of the TV; 1. The conical full-band loudspeaker is a dynamic loudspeaker with a double-magnetic gap and double-coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in the upper and lower and left and right directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gaps are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz back electromotive force) of the two groups of coils of the full-band loudspeaker are ) and the back electromotive force (BEMF) generated when reciprocating in the magnetic gap cancel each other out due to a 180-degree phase angle. The left and right surround full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal; m. On the ceiling of the building above the auditorium, with the extension of the vertical center axis of the TV set as the left-right symmetry axis and the horizontal center axis of the auditorium as the front-back symmetry axis, there are 4 evenly arranged ceiling speakers, a digital audio signal wireless receiving module and a micro-antenna, an audio digital power amplifier PCB board, and an AC / DC power supply module installed in the ceiling speakers, and a conical full-range speaker is embedded on the panel of the ceiling speaker and radiates sound waves toward the floor of the auditorium; n. The ceiling speaker full-band loudspeaker is a dynamic loudspeaker with a double magnetic gap and double coil structure, having an axially magnetized magnet and two groups of magnetic circuits and two groups of coil circuits that are symmetrical in both directions. The surface field strength of the pole surfaces on both sides of the magnet and the magnetic induction intensity B value in the upper and lower magnetic gaps are set to be equal to each other. The winding directions of the two groups of coils inserted and installed in the magnetic gap are opposite to each other and the length of the gap reserved between the two groups of coils is greater than the maximum stroke of the loudspeaker. The number of turns, winding tension, resistance and inductance of the two groups of coils are equal to each other and are connected in series. The impedance value, self-inductance potential (Lenz) of the two groups of coils of the full-band loudspeaker are The back electromotive force (BEMF) generated during the reciprocating motion in the magnetic gap cancels each other out due to the 180-degree phase angle. The full-band loudspeaker is a dynamic loudspeaker with a resistive load characteristic or a characteristic similar to a resistive load and a frequency response range of 80Hz--25kHz. When a pair of "auxiliary magnets" symmetrically arranged up and down are equipped in its magnetic circuit, the edge effect of the magnetic force lines of the upper and lower magnetic gaps of the loudspeaker repel and compress the original convex magnetic force lines under the action of the magnetic field of the same polarity of the "auxiliary magnets", thereby maximally improving the uniformity and consistency of the magnetic force lines of the loudspeaker magnetic gap and the consistency of the frequency response of the restored audio signal. o. A 7.1.4 / 7.2.4-channel Dolby surround sound or panoramic sound chip is provided in the video signal and audio signal processor chipset (MCU) of the TV, and the digital audio voltage signals of the left surround speaker, the right surround speaker, the left rear surround speaker, the right rear surround speaker, and the four ceiling speakers are connected to the corresponding 8 groups of audio signal wireless transmission modules and micro antennas; P. A 7.1.4 / 7.2.4-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality is formed by the left front surround speaker, center speaker, right front surround speaker, bass speaker, left surround speaker, right surround speaker, left rear surround speaker, right rear surround speaker and 4 ceiling speakers of the TV.

5. The television theater system with high sensitivity, high fidelity and high resolution audio quality according to claim 3, characterized in that: When the TV screening room has a smaller building area and space volume, the ceiling speakers can be reduced to two, which are distributed on the left and right sides of the intersection of the extension line of the central axis of the TV and the central axis of the auditorium in the screening room. The left front surround speaker, the center speaker, the right front surround speaker, the subwoofer, the left rear surround speaker, the right rear surround speaker and the two ceiling speakers constitute a 5.1.2-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality.

6. The television theater system with high sensitivity, high fidelity and high resolution audio quality according to claim 4, characterized in that: When the TV screening room has a smaller building area and space volume, the ceiling speakers can be reduced to two, which are distributed on the left and right sides of the intersection of the extension line of the central axis of the TV and the central axis of the auditorium in the screening room. The left front surround speaker, the center speaker, the right front surround speaker, the bass speaker, the left surround speaker, the right surround speaker, the left rear surround speaker, the right rear surround speaker and the two ceiling speakers constitute a 7.1.2-channel three-dimensional cinema system with high-sensitivity, high-fidelity and high-resolution audio quality.

7. The television theater system with high sensitivity, high fidelity and high resolution audio quality according to claims 1 to 6 is characterized by: The boxes of the full-band speakers, bass speakers, surround speakers and ceiling speakers are all made of non-magnetic rigid materials.

8. The television theater system with high sensitivity, high fidelity and high resolution audio quality according to claims 1 to 6 is characterized by: The full-band sound box and the bass sound box of the television are provided with a mesh cover made of a rigid material matching the outer contour surface of the bottom of the television, and a "V ORGN" trademark is provided at a prominent position thereof.

Images