CN212435938U - Inductance coil, sound frequency divider and sound - Google Patents

Abstract

The utility model discloses an inductance coils and stereo set frequency divider and stereo set for stereo set frequency divider, contain iron core and a wire, the iron core contains a plurality of iron core portions, the wire winding is on two at least iron core portions, and the position that satisfies required inductance volume at wire winding to each iron core portion sets up an outgoing line, the wire twines the inductance volume of confirming on next iron core portion and confirms the sum of inductance volume for current iron core portion confirmed inductance volume and last one or more iron core portion confirmed inductance volume, the stereo set frequency divider contains the inductance coils that the aforesaid was mentioned, the stereo set contains the inductance coils of the aforesaid mentioning or the stereo set frequency divider that the aforesaid was mentioned, inductance coils and wire use the problem that quantity is big in the current stereo set frequency divider of this inductance coils solution.

Description

Inductance coil, sound frequency divider and sound

Technical Field

The utility model belongs to the technical field of the stereo set frequency division, especially, relate to an inductance coil for stereo set frequency divider and preparation method and a stereo set frequency divider and a stereo set thereof.

Background

The frequency divider is used for dividing signals from the power amplifier into high pitch, middle pitch, low pitch and other signals through internal elements such as resistors, capacitors, inductors and the like, and then sending the signals to the loudspeakers of corresponding frequency bands for playback, so that various loudspeakers can work in the most suitable audio frequency band.

The resistor, the capacitor and the inductor in the frequency divider form a plurality of frequency dividing circuits comprising high pitch, middle pitch, low pitch, ultra-low pitch and the like, and because the inductance coil has the characteristic of passing low frequency and high frequency, inductance coils with different inductance values are used in each frequency dividing circuit of the frequency divider, so that the problems that (1) the number of the needed inductance coils is large are solved; (2) because each inductance coil is wound with a certain amount of wires, the whole usage amount of the wires is large; based on the problem analysis, the application provides an inductance coil for a sound frequency divider, a manufacturing method of the inductance coil, the sound frequency divider and a sound.

Disclosure of Invention

The utility model aims at providing an inductance coil for stereo set frequency divider and manufacturing method and stereo set frequency divider and stereo set solve among the current stereo set frequency divider inductance coil and use a large amount, and then lead to the problem that wire 2 use amount is big.

The utility model provides an inductance coil for acoustic frequency divider, contain iron core (1) and a wire (2), iron core (1) is by many silicon steel sheet (12) cross lamination, also promptly iron core (1) contains a plurality of iron core portion (11), wire (2) twine on at least two iron core portions (11), and confirm the winding number of turns of wire (2) on each iron core portion (11) according to the required inductance value of each frequency dividing circuit in the acoustic frequency divider, simultaneously, set up an outgoing line (21) in wire (2) twine to each iron core portion (11) and satisfy the position of required number of turns or inductance value, according to the winding order of wire (2) on each iron core portion (11), the inductance value that wire (2) twine the definite on next iron core portion (11) is the sum of the inductance value of current iron core portion (11) definite and the inductance value of last one or more iron core portions (11), the initial end of the lead (2) is used as an audio signal input end, and each outgoing line (21) is used as an audio signal output end.

As a preferable scheme of the application, the structure that the plurality of silicon steel sheets (12) are crossed and laminated to form the iron core (1) comprises the following components:

a plurality of silicon steel sheets (12) are arranged in a laminated manner, and a fixed included angle is formed between every two adjacent silicon steel sheets (12);

or, a plurality of silicon steel sheets (12) are laminated to form two groups of cores, and the two groups of cores are staggered at a fixed included angle to form the iron core (1).

As a preferable scheme of the application, the iron core (1) is formed by cross-laminating a plurality of silicon steel sheets (12) in a cross shape or an X shape, namely the iron core (1) comprises four iron core parts (11).

In a preferred embodiment of the present invention, the wire (2) may be wound from the beginning to the end or from the end to the beginning of the winding direction of each core portion (11), and magnetic fields formed around the core portions (11) after the wire (2) is energized do not interfere with each other.

The application also provides a stereo set frequency divider, contain the aforesaid inductance coil, wire (2) initial end is as audio signal input end on the inductance coil, and each lead-out wire (21) inserts respectively in the different frequency division circuit as audio signal output.

The application also provides a sound box, which comprises the inductance coil; or, include the above-mentioned stereo frequency divider.

Compared with the prior art, the inductance coil in the application has the advantages that: the iron core 1 is formed by crossly laminating a plurality of silicon steel sheets 12 and comprises a plurality of iron core parts 11, the plurality of iron core parts 11 replace the iron core 1 with a plurality of existing inductance coils, namely, the iron core 1 on the plurality of existing inductance coils is integrated on one iron core 1 and is replaced by the plurality of iron core parts 11, so that the using amount of the iron core 1 is saved, the iron core 1 is more compact, the volume of the whole framework of the iron core 1 is reduced, meanwhile, a lead wire 2 with proper length is selected and wound on different iron core parts 11, the inductance determined by the lead wire 2 in the first iron core part 11 is the required minimum inductance, the inductance determined by each subsequent iron core part 11 is the sum of the inductance determined by the current iron core part 11 and the inductance determined by each previous iron core part 11, namely, the required inductance is determined one by adopting an inductance superposition method, and therefore, the using amount of the lead wire 2 can be reduced, when the lead 2 is electrified, the plurality of iron core parts 11 simultaneously generate a magnetic field, and the magnetism of each iron core part 11 can be enhanced by the magnetic field, so that a larger inductance value can be obtained with fewer turns, therefore, the inductance coil in the application not only solves the problem of large using amount of the inductance coil and the lead 2 in the prior acoustic frequency divider, but also solves the problems of large volume and low magnetism of the prior single inductance coil, meanwhile, compared with the prior art, the inductance coil in the embodiment reduces the use amount of the lead 2 and the iron core 1 in the frequency dividing circuit, thereby reducing the loss of audio signals, improving the loudness measured by the sound by more than 50 percent compared with the prior art after the equal power amplifier inputs the power to the sound, meanwhile, compared with the existing method, the reduction degree of the sound is increased by more than one time, so that the inductance coil manufactured by the method in the embodiment has the advantages of good filtering effect and sound effect improvement.

Drawings

Fig. 1 is the utility model provides a range upon range of many silicon steel sheets, and be the iron core 1's that a fixed contained angle constitutes between two adjacent silicon steel sheets and look sideways at the schematic structure.

Fig. 2 is the utility model provides a many silicon steel sheet range upon range of and make two sets of cores, and two sets of cores are crisscross with fixed contained angle and are made the side-looking structural schematic diagram of iron core 1.

Fig. 3 is the structural schematic diagram of the inductance coil in which the iron core includes two sets of iron cores with different lengths.

Fig. 4 is a schematic structural diagram of the iron core provided by the present invention in a cross shape, and the wire is wound around the inductance coils of two adjacent iron core portions.

Fig. 5 is a schematic structural diagram of the iron core provided by the present invention in a cross shape, and the wire is wound around the inductance coil of the three iron core portions.

Fig. 6 is a schematic structural diagram of the iron core provided by the present invention in a cross shape, and the lead is wound around the inductance coil of four iron core portions.

Fig. 7 is a schematic structural diagram of an inductance coil in which the iron core includes two sets of iron cores and the two sets of iron cores are in an x shape.

Reference numerals

The iron core 1, the iron core part 11, the silicon steel sheet 12, the lead wire 2 and the lead wire 21;

h is the inductance required by the high-pitch frequency-dividing circuit, M is the inductance required by the middle-pitch frequency-dividing circuit, LM is the inductance required by the low-pitch frequency-dividing circuit, and L is the inductance required by the ultra-low-pitch frequency-dividing circuit.

Detailed Description

Example 1:

this embodiment provides an inductance coil for stereo set frequency divider, and this inductance coil contains iron core 1 and a wire 2, and iron core 1 is crossed and is range upon range of by many silicon steel sheets 12 and form, and in this embodiment, the method that many silicon steel sheets 12 cross range upon range of and be iron core 1 contains: a plurality of silicon steel sheets 12 are arranged in a stacked manner, and a fixed included angle is formed between two adjacent silicon steel sheets 12, as shown in fig. 1; or, the multiple silicon steel sheets 12 are stacked to form two groups of cores, and the two groups of cores are staggered to form the iron core 1 at a fixed included angle, referring to fig. 2, in order to reduce the excitation loss of the iron core 1 in this embodiment, it is preferable to adopt a manner that the multiple silicon steel sheets 12 are stacked and arranged, and a fixed included angle is formed between two adjacent silicon steel sheets 12 to form the iron core 1; in this embodiment, the lengths of the plurality of silicon steel sheets 12 constituting the iron core 1 are the same or different, when two types of silicon steel sheets 12 having different lengths are provided, the iron core 1 constituted by the silicon steel sheets is preferably in an inverted-j-shaped or T-shaped structure, see fig. 3, and when the two types of silicon steel sheets 12 having the same length are provided, the iron core 1 constituted by the silicon steel sheets is preferably in a cross-shaped or x-shaped structure, see fig. 4 and 7, in this embodiment, it is preferable that all the silicon steel sheets 12 have the same length, the iron core 1 constituted by the silicon steel sheets has a cross-shaped structure, and the iron core 1 of the structure includes four iron core portions 11; the lead wire 2 is wound on at least two iron core parts 11, the winding turns of the lead wire 2 on each iron core part 11 are determined according to the inductance required by each frequency dividing circuit in the acoustic frequency divider, and meanwhile, an outgoing wire 21 is arranged at the position where the lead wire 2 is wound to each iron core part 11 and meets the required turns or inductance, in the embodiment, the outgoing wire 21 is communicated with the lead wire 2 but does not influence the insulation performance of the lead wire 2, meanwhile, in the embodiment, when the last iron core part 11 is wound, the tail end of the lead wire 2 can be used as the outgoing wire 21 without extra increase, of course, if the residual lead wire 2 is longer, part of the lead wire 2 can be selected as the outgoing wire 21, and when the lead wire is shorter, part of the lead wire can be additionally added as; according to the winding sequence of the lead 2 on each iron core part 11, the inductance determined by winding the lead 2 on the next iron core part 11 is the sum of the inductance determined by the current iron core part 11 and the inductance determined by the previous iron core part or iron core parts 11, namely the inductance determined by winding the lead 2 on the first iron core part 11 is the required minimum value, the inductance determined on the second iron core part 11 is the required second-order small value, the inductance determined on the last iron core part 11 is the required maximum value, the initial end of the lead 2 serves as an audio signal input end, and each outgoing line 21 serves as an audio signal output end.

In this embodiment, the number of the iron core portions 11 and the winding manner of the wire can be determined according to actual needs, for example,

when inductance coils are needed in a high-pitch frequency dividing circuit and a middle-pitch frequency dividing circuit in the acoustic frequency divider, two iron core parts 11 can be selected, referring to fig. 4, a lead wire 2 with proper length is selected, the lead wire 2 is wound on the first iron core part 11 until the minimum inductance required by the high-pitch frequency dividing circuit is met, a first outgoing line 21 is arranged on the lead wire 2 at the position determined by the inductance, then the remaining wires 2 are wound to the second iron core part 11 until the required inductance of the middle-tone frequency-dividing circuit is satisfied, and the winding is stopped, at this time, the end of the wire 2 can be used as the second outgoing line 21, a part of the wires 2 can also be used as the second outgoing line 21, and an additional wire 2 can also be added as the second outgoing line 21, which is determined according to the length of the wire 2, and the present embodiment is not limited unnecessarily, and in the present embodiment, the inductance M required by the middle-pitch frequency-dividing circuit is the sum of the inductance H required by the high-pitch frequency-dividing circuit and the determined inductance on the second iron core part 11.

When inductance coils are needed in a high-pitch frequency dividing circuit, a middle-pitch frequency dividing circuit and a low-pitch frequency dividing circuit in the sound frequency divider, three iron core parts 11 can be selected, the conducting wire 2 is wound in the anticlockwise direction, referring to fig. 5, the conducting wire 2 with proper length is selected, the conducting wire 2 is wound on the first iron core part 11 until the minimum inductance required by the high-pitch frequency dividing circuit is met, a first outgoing wire 21 is arranged on the conducting wire 2 at the inductance determining position, the other conducting wires 2 are wound on the second iron core part 11 until the inductance required by the middle-pitch frequency dividing circuit is met, the winding is stopped, a second outgoing wire 21 is also arranged on the conducting wire 2 at the inductance determining position, finally the rest conducting wires 2 are wound on the third iron core part 11 until the inductance required by the low-pitch frequency dividing circuit is met, the tail end of the conducting wire 2 can be used as a third outgoing wire 21M, and a part of the conducting wire 2 can be used, an additional lead wire 2 can be added as a third lead wire 21M, which is determined according to the length of the lead wire 2, and the embodiment is not limited unnecessarily, in the embodiment, the inductance M required by the middle-tone frequency dividing circuit is the sum of the inductance H required by the high-tone frequency dividing circuit and the inductance determined on the second iron core 11, and the inductance LM required by the low-tone frequency dividing circuit is the sum of the inductance H required by the high-tone frequency dividing circuit, the inductance M required by the middle-tone frequency dividing circuit and the inductance determined on the third iron core 11.

When inductance coils are needed in four high, medium, low and ultra-low sound frequency dividing circuits in the sound frequency divider, four iron core parts 11 can be selected, and the conducting wire 2 is wound along the anticlockwise direction, referring to fig. 6, the conducting wire 2 with proper length is selected, the conducting wire 2 is wound on the first iron core part 11 until the minimum inductance required by the high sound frequency dividing circuit is met, the first outgoing wire 21 is arranged on the conducting wire 2 at the inductance value determining position, the other conducting wires 2 are wound on the second iron core part 11 until the inductance required by the medium sound frequency dividing circuit is met, the winding is stopped, the second outgoing wire 21 is arranged on the conducting wire 2 at the inductance value determining position, the other conducting wires 2 are wound on the third iron core part 11 until the inductance required by the low sound frequency dividing circuit is met, the third outgoing wire 21 is arranged on the conducting wire 2 at the inductance value determining position, and the remaining conducting wires 2 are wound on the fourth iron core part 11 until the inductance required by the low sound frequency dividing circuit is met Stopping winding, wherein the tail end of the wire 2 can be used as a fourth outgoing line 21, part of the wire 2 can be used as the fourth outgoing line 21, and an additional wire 2 can be added as the fourth outgoing line 21, and the additional wire 2 is determined according to the length of the wire 2, and the embodiment does not need to be limited unnecessarily; the inductance LM required by the bass frequency dividing circuit is the sum of the inductance H required by the treble frequency dividing circuit, the inductance M required by the middle-tone frequency dividing circuit and the determined inductance on the third iron core part 11; the inductance L required by the ultra-bass frequency division circuit is the sum of the inductance H required by the high-pitch frequency division circuit, the inductance M required by the middle-pitch frequency division circuit, the inductance LM required by the bass frequency division circuit and the determined inductance on the fourth iron core part 11.

In this embodiment, the direction of the arrow on the wire 2 is the winding direction of the wire 2, and is also the current flow direction; in this embodiment, because the structure of the iron core 1 and the winding manner of the wire 2 on the iron core 1 are different, and the enhancement multiple of the inductance is different, when actually manufacturing the inductance coil, which winding manner the wire 2 adopts can be determined according to the currently required inductance value or the length of the wire 2, and the embodiment is not specifically limited herein, and certainly, when the wire 2 is wound, it is necessary to ensure that the magnetic fields generated by the wire 2 in each iron core part 11 and the iron core 1 superposition part 12 do not interfere with each other.

In this embodiment, the conducting wire 2 is preferably an enameled wire, and the wire diameter of the enameled wire is preferably between 0.8 mm and 1mm, which is specifically selected according to practical situations and is not specifically limited in this embodiment.

As can be seen from the above, the iron core 1 is formed by cross-laminating a plurality of silicon steel sheets 12 and includes a plurality of iron core portions 11, and the plurality of iron core portions 11 replace the iron core 1 with a plurality of existing inductor coils, that is, the iron core 1 with a plurality of existing inductor coils is integrated on one iron core 1 and replaced by a plurality of iron core portions 11, so that not only is the usage amount of the iron core 1 saved, but also the iron core 1 is made more compact and the volume of the whole framework of the iron core 1 is reduced, and at the same time, one lead 2 is selected and wound on different iron core portions 11, the inductance determined by the lead 2 in the first iron core portion 11 is the minimum required inductance, the inductance determined by the subsequent iron core portions 11 is the sum of the inductance determined by the current iron core portion 11 and the inductance determined by the previous iron core portions 11, that is, the required inductance is determined one by using the inductance superposition method, so that the usage, when the conducting wire 2 is electrified, the plurality of iron core parts 11 generate magnetic fields simultaneously, and the magnetic field can also enhance the magnetism of each iron core part 11, so that larger inductance can be obtained under fewer turns, therefore, the inductance coil in the embodiment not only solves the problem of large usage amount of the inductance coil and the conducting wire 2 in the existing sound frequency divider, but also solves the problem of large volume and low magnetism of the existing single inductance coil; simultaneously, use this inductance coil in this embodiment, compare the current use amount that has reduced wire 2 and iron core 1 in frequency division circuit, and then reduced the loss to audio signal, compare and will promote more than 50% now when equal power amplifier input for stereo set power back stereo set measuring loudness, simultaneously, the reduction degree of sound compares and will advance more than one time now, consequently, the inductance coil of this method preparation still has the advantage that the filter effect is good and promote the stereo set audio in this embodiment.

Example 2:

the embodiment provides a sound frequency divider, which comprises the inductance coil mentioned in embodiment 1, wherein the initial end of the lead 2 on the inductance coil is used as an audio signal input end, and each lead-out wire 21 is used as an audio signal output end and is respectively connected into different frequency dividing circuits; for example, when the three core portions 11 of the inductor winding are wound with the wires 2, the initial end of one wire 2 on the inductor winding is used as the input end of the audio signal, the three lead-out wires 21 are used as the output ends of the audio signal and are respectively connected to three required circuits among four frequency dividing circuits of high pitch, middle pitch, low pitch and ultra low pitch in the sound frequency divider, when the four core portions 11 of the inductor winding are wound with the wires 2, the initial end of one wire 2 on the inductor winding is used as the input end of the audio signal, and the four lead-out wires 21 are used as the output ends of the audio signal and are respectively connected to four frequency dividing circuits of high pitch, middle pitch, low pitch and ultra low pitch in the sound frequency divider, therefore, compared with the existing sound frequency divider, only one inductor winding is used in a plurality of frequency dividing circuits, so as to not only save the number of the inductor winding, and the audio filtering effect of the frequency dividing circuit is enhanced.

Example 3:

this embodiment provides a sound including the inductance coil mentioned in embodiment 1, or the sound including the acoustic frequency divider mentioned in embodiment 2.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that, for the person skilled in the art, without departing from the scope of the present invention, several improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effectiveness of the implementation of the present invention and the practicability of the patent. The scope of protection claimed in the present application shall be subject to the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (7)

1. An inductance coil for an acoustic frequency divider is characterized by comprising an iron core (1) and a lead wire (2), wherein the iron core (1) is formed by crossly laminating a plurality of silicon steel sheets (12), namely the iron core (1) comprises a plurality of iron core parts (11), the lead wire (2) is wound on at least two iron core parts (11), the number of winding turns of the lead wire (2) on each iron core part (11) is determined according to the inductance required by each frequency dividing circuit in the acoustic frequency divider, meanwhile, an outgoing line (21) is arranged at the position where the lead wire (2) is wound to each iron core part (11) to meet the required number of turns or inductance, according to the winding sequence of the lead wire (2) on each iron core part (11), the determined inductance of the lead wire (2) wound on the next iron core part (11) is the sum of the determined inductance of the current iron core part (11) and the determined inductance of the previous iron core part (11), the initial end of the lead (2) is used as an audio signal input end, and each outgoing line (21) is used as an audio signal output end.

2. The inductor coil according to claim 1, wherein the structure of the iron core (1) formed by the silicon steel sheets (12) in a crossed manner comprises:

a plurality of silicon steel sheets (12) are arranged in a laminated manner, and a fixed included angle is formed between every two adjacent silicon steel sheets (12);

or, a plurality of silicon steel sheets (12) are laminated to form two groups of cores, and the two groups of cores are staggered at a fixed included angle to form the iron core (1).

3. An inductor coil according to claim 1 or 2, characterized in that the iron core (1) is formed by cross-laminating a plurality of silicon steel sheets (12) in a cross shape or an x shape, that is, the iron core (1) comprises four iron core portions (11).

4. An inductor according to claim 1 or 2, characterized in that the winding direction of the conductor (2) in each core part (11) is from beginning to end or from end to beginning, and that the magnetic fields formed around the core parts (11) after the conductor (2) is energized do not interfere with each other.

5. An inductor according to claim 3, characterized in that the wire (2) is wound in the direction of winding of the core portions (11) from the beginning to the end or from the end to the beginning, and that the magnetic fields formed around the core portions (11) after the wire (2) is energized do not interfere with each other.

6. A sound frequency divider, characterized in that it comprises an inductance coil as claimed in claim 1, the initial end of the conducting wire (2) on the inductance coil is used as the audio signal input end, and each leading-out wire (21) is used as the audio signal output end and is respectively connected to different frequency dividing circuits.

7. An acoustic device comprising the inductor of claim 1; or, comprising the acoustic frequency divider of claim 6.

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