Direct-driven potential regulator and sound console

Abstract

The utility model discloses a direct drive type potential regulator and a sound console, and relates to a control part of the sound console, and the direct drive type potential regulator comprises a housing assembly, a push rod, a rotor assembly and a stator assembly. The shell assembly is provided with an accommodating cavity; the push rod is partially exposed out of the shell assembly and can move along a straight line relative to the shell assembly; the mover assembly is connected with the push rod and is in sliding fit connection with the shell assembly, and the mover assembly comprises at least two coils arranged in the moving direction of the push rod; the stator assembly comprises a magnetic pole array arranged opposite to the coil, the magnetic pole array comprises a plurality of magnetic poles arranged in the moving direction of the push rod, and the polarities of every two adjacent magnetic poles are opposite. And the push rod moves along a straight line by alternately electrifying the coil. The direct-drive type potential regulator is better in working stability and reliability, and is beneficial to miniaturization, lightening and thinning.

Description

Technical Field

[0001] The utility model relates to a mixing console control component, in particular to a direct-drive potential regulator and a mixing console. Background Art

[0002] In control devices such as mixing consoles, a direct-slide potentiometer is usually used to control the signal. In the prior art, there is a direct-slide potentiometer that controls the position of the push rod through a motor. This type of direct-slide potentiometer can drive the belt transmission mechanism to move through the motor, and then the belt drives the push rod to move to the required position. This type of motor has a memory function and can store multiple control modes. The control mode stores the position information of the push rod of each direct-slide potentiometer. When it is necessary to switch to a certain mode, the motor drives the push rod to the specified position to achieve the mode switch.

[0003] However, there are certain defects in controlling the movement of the push rod through belt transmission. For example, during installation, the belt should not be too loose or too tight, otherwise it will easily affect the position accuracy and service life of the push rod. After long-term use, the belt will become loose due to wear, which will also affect the accuracy of use. It is necessary to adjust the tightness or replace the belt to ensure the stability of use. For another example, when the motor is working, it will generate a certain amount of vibration, which will also affect the accuracy of the direct sliding potentiometer and make the use stability poor.

[0004] In addition, in the prior art, a direct-slide potentiometer usually requires a brush to cooperate with a resistor to determine the position of the push rod and control the signal. The resistor and the brush are prone to poor contact after being worn, which affects the reliability of use.

[0005] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0006] The utility model aims to provide a direct-drive potentiometer regulator and a mixer. The direct-drive potentiometer regulator has better working stability.

[0007] In order to achieve the above-mentioned utility model object, on the one hand, the utility model proposes a direct-drive potential regulator, comprising:

[0008] A housing assembly is provided with a receiving cavity;

[0009] A push rod, partially exposed from the housing assembly, capable of moving along a straight line relative to the housing assembly;

[0010] a mover assembly connected to the push rod and slidably coupled to the housing assembly, wherein the mover assembly includes at least two coils arranged along the movement direction of the push rod; and

[0011] A stator assembly, comprising a magnetic pole array arranged opposite to the coil, wherein the magnetic pole array comprises a plurality of magnetic poles arranged along the moving direction of the push rod, and the polarities of two adjacent magnetic poles are opposite;

[0012] The push rod is moved along a straight line by alternately energizing the coil.

[0013] Furthermore, when a coil is aligned with a magnetic pole, the aligned coil and magnetic pole are respectively called an alignment coil and an alignment magnetic pole, and the coil adjacent to the alignment coil is located on the side of the magnetic pole adjacent to the alignment magnetic pole that is biased toward the alignment magnetic pole. After the coil is energized, it is attracted by the adjacent magnetic pole and repelled by the alignment magnetic pole, so that the energized coil moves to align with the adjacent magnetic pole.

[0014] Further, the adjacent coils are at least partially located directly above the adjacent magnetic poles.

[0015] Further, the number of the coils is two, and the center distance between two adjacent coils is equal to half of the center distance between two adjacent magnetic poles; or,

[0016] The number of the coils is three, and the center distance between two adjacent coils is equal to one third of the center distance between two adjacent magnetic poles;

[0017] When one coil is energized, the other coils are de-energized.

[0018] Further, along the axis direction of the coil, the distances between all coils and the magnetic poles are the same; or,

[0019] Two adjacent coils are staggered in the axial direction thereof, and their projections along the axial direction have an overlapping area.

[0020] Furthermore, the stator assembly includes a plurality of magnets arranged along the moving direction of the push rod, and the plurality of magnets are oriented toward the magnetic poles of the coil to form the magnetic pole array.

[0021] Furthermore, the direct-drive potentiometer regulator includes a control circuit module electrically connected to the coil, the control circuit module is used to energize the coil, and can calculate and feedback the position information of the mover assembly based on the energization status of the coil, the energization status including the number of energization times and the direction of the current.

[0022] Further, the mover assembly includes a connecting plate connected between the push rod and the coil, the connecting plate is provided with an input interface and an output interface, and the direct-drive potentiometer regulator also includes a control circuit module electrically connected to the input interface, the output interface and the coil;

[0023] The connecting board is a circuit board, and the control circuit module is arranged on the connecting board.

[0024] Furthermore, the coil is arranged on the surface of the connecting plate facing the stator assembly and is spaced relative to the stator assembly. The coil and the push rod are respectively located on both sides of the connecting plate.

[0025] Furthermore, the direct-drive potential regulator also includes a track fixed relative to the housing assembly, wherein the track supports the connecting plate and is slidably connected to the connecting plate.

[0026] Further, the track includes a plurality of rollers arranged along the moving direction of the push rod, and the connecting plate is supported by the rollers;

[0027] A track is provided on both sides of the connecting plate, and the stator assembly is located between the two tracks.

[0028] Further, the housing assembly includes a bottom plate and a top plate that are arranged opposite to each other;

[0029] The top plate is provided with a slide groove extending along the movement direction of the push rod, and the push rod is arranged in the slide groove;

[0030] The stator assembly is arranged in the receiving cavity and is relatively fixed to the bottom plate.

[0031] On the other hand, the utility model also provides a mixing console, comprising the direct-drive potentiometer regulator as described in any one of the above items.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] In the utility model, the moving subassembly of the direct-drive potentiometer regulator includes at least two coils arranged along the movement direction of the push rod, and the stator assembly includes a plurality of magnetic poles arranged along the movement direction of the push rod. The moving subassembly moves by the magnetic field force between the magnetic poles after the coils are energized. There is no need to use the motor and mechanical transmission mechanism in the prior art, and the movement accuracy is not easily reduced due to motor vibration, belt loosening and wear, etc. The working stability and reliability are higher, and it is conducive to the miniaturization and thinness of the direct-drive potentiometer regulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional schematic diagram of a direct-drive potentiometer regulator in an embodiment of the utility model.

[0035] Figure 2 yes Figure 1 A top view of a direct-drive potentiometer is shown.

[0036] Figure 3 is along Figure 2 Schematic diagram obtained by cutting along the AA cutting line.

[0037] Figure 4 It is a schematic diagram of a movable subassembly and a push rod connected to each other in one embodiment of the utility model.

[0038] Figure 5 It is a schematic diagram of the positions of the coils and the magnetic pole array in one embodiment of the utility model.

[0039] Figure 6 yes Figure 1 The schematic diagram of the position of the mover assembly and the magnetic pole array in one case of a direct-drive potentiometer regulator is shown, in which the left coil is aligned with the left magnetic pole.

[0040] Figure 7 yes Figure 6 Schematic diagram of the middle mover assembly moving until its right coil is aligned with the middle magnetic pole.

[0041] Figure 8 yes Figure 7 Schematic diagram of the middle mover assembly moving until its left coil is aligned with the middle magnetic pole.

[0042] Fig. 9 It is a schematic diagram of the positions of the second housing, the stator assembly and the track in one embodiment of the utility model.

[0043] Fig.10 It is a cross-sectional view of a direct-drive potential regulator according to an embodiment of the present utility model.

[0044] Fig.11 This is a cross-sectional view of a direct-drive potential regulator in an embodiment of the utility model. In the figure, the moving subassembly includes three coils.

[0045] Fig.12 yes Fig.11 A three-dimensional schematic diagram of the connection between the mover assembly and the push rod is shown in FIG.

[0046] Fig.13 yes Fig.11 The schematic diagram of the position of the mover assembly and the magnetic pole array in one case of a direct-drive potentiometer regulator is shown, in which the left coil is aligned with the left magnetic pole.

[0047] Fig.14 yes Fig.13 Schematic diagram of the middle mover assembly moving until the middle coil is aligned with the middle magnetic pole.

[0048] Fig.15 yes Fig.14 Schematic diagram of the middle mover assembly moving until the right coil is aligned with the right magnetic pole.

[0049] Fig.16 yes Fig.13 Schematic diagram of the middle mover assembly moving until the right coil is aligned with the middle magnetic pole. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0051] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] like Figures 1 to 5 As shown, the utility model provides a direct-drive potentiometer regulator (or called a direct-slide potentiometer or a direct-slide electric fader, etc.), comprising a housing component 1, a push rod 2, a mover component 3 and a stator component 4.

[0054] The housing assembly 1 is provided with a receiving cavity 10. The housing assembly 1 can be formed by connecting two or more housings. In this embodiment, the housing assembly 1 includes a first housing 13 and a second housing 14 connected to each other. The first housing 13 and the second housing 14 cooperate to form the receiving cavity 10. The mover assembly 3 and the stator assembly 4 are both arranged in the receiving cavity 10.

[0055] The push rod 2 is partially exposed to the outside of the shell component 1 and can move in a straight line relative to the shell component 1. Optionally, a slide groove 120 is provided on the shell component 1, and the push rod 2 is provided in the slide groove 120 and exposed from the slide groove 120 to the shell component 1 to facilitate its operation.

[0056] like Figure 4 As shown, the mover assembly 3 is connected to the push rod 2 and can drive the push rod 2 to move. The mover assembly 3 is slidably matched with the housing assembly 1 to perform linear motion along the movement direction X of the push rod 2. The mover assembly 3 includes at least two coils 30 arranged along the movement direction X of the push rod 2.

[0057] like Figure 3 and Figure 5 As shown, the stator assembly 4 includes a magnetic pole array arranged opposite to the coil 30, and the magnetic pole array includes a plurality of magnetic poles 40 arranged along the moving direction of the push rod 2, and the polarities of two adjacent magnetic poles 40 are opposite. By alternately energizing the coil 30, the push rod 2 can be moved along a straight line.

[0058] When the coils 30 are alternately energized, the energized coils 30 will be subject to the attractive and repulsive forces of different magnetic poles 40, so that the energized coils 30 are attracted to the top of the magnetic pole 40 that is closest to them and attracts them. In this way, when the two coils 30 are alternately energized, the mover assembly 3 will move along the magnetic poles. When the coils 30 are energized and attracted to the top of the magnetic pole 40, resistance can be generated to prevent the push rod 2 from moving.

[0059] refer to Figures 6 to 8 , the figure shows the movement of the movable component 3 when it includes two coils. For the convenience of description, in the figure, the left coil is called the left coil 30a, the right coil is called the right coil 30b, and the three magnetic poles from left to right are respectively called the left magnetic pole 40a, the middle magnetic pole 40b and the right magnetic pole 40c. Figure 6 In the figure, the left coil 30a is energized, and the magnetic field it generates is with the N pole at the top and the S pole at the bottom, so that the left coil 30a and the left magnetic pole 40a are attracted and aligned (that is, the left coil 30a is located directly above the middle position of the left magnetic pole 40a). When the left coil 40a is de-energized and the right coil 30b is energized, the right coil 30b generates a magnetic field with the N pole at the bottom and the S pole at the top. At this time, the middle magnetic pole 40b generates an attractive force on the right coil 30b, and the left magnetic pole 40a generates a repulsive force on the right coil 30b, thereby causing the movable subassembly 3 to move rightward to Figure 7 Next, the right coil 30b is powered off and the left coil 30a is powered on, so that it generates a magnetic field with the N pole at the bottom and the S pole at the top. At this time, the left coil 30a is repelled by the left magnetic pole 40a and attracted by the middle magnetic pole 40b, so that it moves to align with the middle magnetic pole 40b, that is, moves to Figure 8 Thus, when the coil 30 is energized alternately, the mover assembly 3 will move along the magnetic pole. Obviously, when the current is reversed, the mover assembly 3 will move in the reverse direction.

[0060] In this embodiment, the mover assembly 3 moves through the interaction of the magnetic field generated by the coil 30 being energized and the magnetic field of the magnetic pole 40b itself, and there is no need to set up a motor and a mechanical transmission mechanism. During operation, the mechanical vibration is small and the operation is more stable. Moreover, its structure is simple, and there is no need for a complex transmission structure, nor is there a need to adjust the tension of the belt, which is conducive to long-term stable operation and more reliable performance. In addition, the coil 30 and the magnetic pole 40b are arranged at intervals, and the two do not contact each other, which is not easy to cause the problem of poor contact caused by wear of the resistor and the brush in the prior art. At the same time, since there is no need to set up a motor and a mechanical transmission mechanism, it is conducive to the miniaturization and thinness of the direct-drive potentiometer regulator.

[0061] For convenience of description, when a coil 30 is aligned with a magnetic pole 40, the aligned coil 30 and magnetic pole 40 are respectively referred to as alignment coils (e.g. Figure 6 left coil 30a in the middle) and aligning the magnetic poles (eg Figure 6 In this embodiment, when one coil 30 is aligned with one magnetic pole 40, the coil 30 (eg, Figure 6 The right coil 30b in FIG. 1 is located at a magnetic pole 40 (eg, Figure 6 The center magnetic pole 40b) in the middle is biased toward the side of the aligned magnetic pole, so that each time the coil 30 is switched on, the energized coil will move to directly above the adjacent magnetic pole 40, that is, each movement will move to above the next magnetic pole that is currently aligned with the magnetic pole, and the moving distance is the distance L3 between the center of the adjacent coil 30 and the center of the adjacent magnetic pole 40.

[0062] The magnetic poles 40 are also arranged at equal intervals, that is, the center distance L2 between two adjacent magnetic poles 40 is the same. Optionally, when the number of coils 30 is two, the center distance L2 between two adjacent magnetic poles 40 is twice the center distance L1 between two adjacent coils 30 .

[0063] It can be understood that the center distance between adjacent magnetic poles 40 is known, and the coordinates of the movable subassembly 3 when it is in the original position are also known. Whether the coil 30 is energized, the direction of the energized current and the number of times the energization is performed can also be monitored and recorded. In this way, according to the number of times and directions that the coil 30 is energized, the distance that the movable subassembly 3 moves left and right can be calculated, thereby determining the current position of the movable subassembly 3. The direct-drive potentiometer regulator also includes a control circuit module electrically connected to the coil 30. The control circuit module is used to control the energization of the coil 30. When the coil 30 is energized, the control circuit module simultaneously records the number and direction of energization, and calculates the position information of the movable subassembly 3 according to the energization of the coil 30. Specifically, accurate displacement information can be first obtained through the number and direction of energization, and the current position information of the movable subassembly 3 (i.e., the coordinates after movement) can be calculated according to the displacement information and the coordinate information before the movement of the movable subassembly 3. The position information can correspond to the potential information of the direct-drive potentiometer regulator. The control circuit module can control the audio signal to be processed according to the current position information (and / or displacement information) of the moving subassembly 3, or send the position information (and / or displacement information) to a main control system such as a mixing console, and the main control system controls the audio signal according to this information, such as increasing or decreasing the signal. Since the control circuit module can directly feedback the position signal of the moving subassembly, the position signal is more accurate, and thus can more accurately reflect the potential information, so that the potential signal is more accurately subdivided, achieving a better tuning effect.

[0064] In this embodiment, Figure 4 and Figure 6 As shown, the mover assembly 3 includes a connecting plate 31 connected between the push rod 2 and the coil 30, and the connecting plate 31 is provided with an input interface 310 and an output interface 311 respectively located at both ends thereof, and the control circuit module is electrically connected to the input interface 310 and the output interface 311 at the same time. The input interface 310 is used to input current to energize the coil 30, and the output interface 311 is used to output the displacement information (and / or position information) calculated by the control circuit module to an external circuit. It can be understood that the control circuit module can also include a chip and a peripheral circuit for calculating and processing the signal. Optionally, the control circuit module is arranged on the connecting plate 31 as a whole, and the connecting plate 31 is a circuit board (such as a PCB circuit board) on which a corresponding circuit is arranged. Each coil 30 is independently provided with a corresponding input interface 310 to independently record the energization status of each coil 30.

[0065] In some embodiments, the control circuit module further includes a detection circuit, which is used to detect the magnitude and direction of the induced current generated by the unpowered coil when it moves through the magnetic field of the magnetic pole 40. According to the number and direction of the induced current, the moving direction and distance of the mover assembly 3 can be calculated. For example, when the push rod 2 is pushed to move, the coil 30 will generate induced currents in different directions when passing through magnetic poles of different polarities. By counting the direction and number of induced currents, the displacement information of the mover assembly 3 can be obtained. When the coil 30 is powered on, the detection circuit may not perform detection.

[0066] Optional, reference Figure 6 , when a coil 30 is aligned with a magnetic pole 40, the coil 30 adjacent to the alignment coil is at least partially located directly above the magnetic pole 40 adjacent to the alignment pole. In this way, after the adjacent coil 30 is energized, it can be more reliably attracted to the center position directly above the adjacent magnetic pole 40 (i.e., aligned with the adjacent magnetic pole 40). And each time the energized coil 30 is switched, the distance moved by the mover assembly 3 is smaller, the distance control is more delicate, and the accuracy is higher. In other embodiments, when a coil 30 is aligned with a magnetic pole 40, the coil 30 adjacent to the alignment coil can also be located between two adjacent magnetic poles, without having a portion directly above the magnetic pole 40 adjacent to the alignment pole.

[0067] In this embodiment, reference Fig. 9 The stator assembly 4 includes a plurality of magnets 41 arranged along the movement direction X of the push rod 2, and the plurality of magnets 41 are oriented toward the magnetic poles 40 of the coil 30 to form a magnetic pole array. Optionally, the magnets 40 are magnetized along the axial direction of the coil 30 so that the coil 30 can be reliably aligned with the magnetic poles by suction. In other embodiments, the magnets 40 can also be magnetized in the horizontal direction.

[0068] In this embodiment, the coil 30 is disposed on the surface of the connecting plate 31 facing the stator assembly 4, and is spaced relative to the stator assembly 4. The coil 30 and the push rod 2 are respectively located on both sides of the connecting plate 31, and the arrangement of the coil 30 and the push rod 2 on the surface of the connecting plate 31 is more reasonable. Since the coil 30 is located on the surface of the connecting plate 31 away from the chute 120, it is not easy for external dust, liquid or other foreign matter to contact the coil 30 through the chute 120, which is conducive to ensuring the reliability of the operation of the coil 30.

[0069] In this embodiment, the housing assembly 1 includes a bottom plate 11 and a top plate 12 which are arranged opposite to each other, and the bottom plate 11 and the top plate 12 are parallel. The slide groove 120 is arranged on the top plate 12 and extends along the movement direction of the push rod 2. Since the push rod 2 extends from the top of the housing assembly 1, it is more convenient for manual operation and observation.

[0070] In this embodiment, Figure 5, Fig. 9 and Fig.10 As shown, the direct-drive potentiometer further includes a track 5 fixed relatively to the housing assembly 1, the track 5 supports the connecting plate 31 and is slidably connected to the connecting plate 31, the track 5 is arranged along the movement direction of the push rod 2, and when the connecting plate 31 moves along the track 5, the push rod 2 moves synchronously along a straight line. Optionally, the track 5 includes a plurality of rollers 50 arranged along the movement direction of the push rod 2, a track 5 is arranged on both sides of the connecting plate 31, and the two sides of the connecting plate 31 are supported by the rollers 50 so that it can move smoothly along the track 5, and the stator assembly 4 is located between the two tracks 5, so that the overall structure of the direct-drive potentiometer is more compact and smaller in size.

[0071] In this embodiment, Figure 4 and Fig.10 As shown, the surface of the connecting plate 31 facing the track 5 is provided with a boss 312, and the boss 312 contacts the roller 50. In other embodiments, the connecting plate 31 may also directly contact the roller 50. The boss 312 may be a part of the connecting plate 31, and the two may be integrally formed, or may be an independent part connected to the connecting plate 31. Optionally, the boss 312 is made of wear-resistant material.

[0072] like Figure 4 and Fig.10 As shown, the surface of the connecting plate 31 facing the top plate 12 is also provided with a limit strip 313, which is located on both sides of the connecting plate 31 and is arranged opposite to the top plate 12 to reduce the distance between the limit strip 313 and the top plate 12, thereby limiting the degree of freedom of the connecting plate 31 in the thickness direction. Optionally, the limit strip 313 is made of wear-resistant material. In other embodiments, a slide rail can also be provided on the top plate 12, so that the connecting plate 31 is located between the upper and lower slide rails, further improving the smoothness of the movement of the connecting plate 31.

[0073] In some embodiments, reference Figure 6 , the projections of all coils 30 on the connecting plate 31 along the axial direction of the coils 30 have no overlapping parts, that is, the coils 30 are arranged at intervals along the movement direction of the push rod 2. Optionally, all coils 30 are arranged on the same height plane (the height direction and the axial direction of the coils 30 are consistent with the thickness direction Y of the connecting plate 31), and along the axial direction of the coils 30, the distances between all coils 30 and the magnetic poles 40 are the same. In some embodiments, reference Fig.11 and Fig.12 The projections of two adjacent coils 30 on the connecting plate 31 have an overlapping area, that is, the coils 30 are staggered in the thickness direction of the connecting plate 31, and a part of the coil 30 is located directly above or below the adjacent coil 30, so that the arrangement of the coils 30 is more compact.

[0074] Optionally, the number of coils 30 is two or three.

[0075] Fig.12 FIG. 1 shows an embodiment in which the number of coils 30 is three. When the number of coils 30 is three, the coils 30 may be energized alternately in the order of the coils 30. For example, referring to FIG. Fig.13 First, the left coil 30a is energized to align it with the left magnetic pole 40a, and then the center coil 30c is energized to move the mover assembly 3 to align the coil 30c with the center magnetic pole 40b (reference Fig.14 ), and then energize the right coil 30b to move the mover assembly 3 until the right coil 30b is aligned with the right magnetic pole 40c (reference Fig.15 ). The coils 30 may also be energized in other sequences. For example, when the left coil 30a is aligned with the left magnetic pole 40a, the right coil 30b is energized first, so that the right coil 30b moves to align with the center magnetic pole 40b (refer to Fig.16 ), and then energize the center coil 30c so that the center coil 30c is aligned with the center magnetic pole 40b (reference Fig.14 ), so that the distance moved by the motor assembly 3 each time is energized is smaller. It can be understood that when one of the coils 30 is energized, the other two coils 30 are de-energized, that is, only one coil is energized at the same time. By selecting different energization sequences, the movement mode of the push rod 2 can be changed, for example, fast movement or higher precision movement.

[0076] In the figure, the middle coil 30 is staggered with the other two coils 30 in the axial direction of the coil 30 (i.e., the thickness direction Y of the connecting plate 31), the height of the middle coil 30c is higher than the other two coils 30, and part of it is located directly above the other two coils 30, and the two coils 30 on both sides are in the same plane. In this way, the size of the connecting plate 31 can be made smaller, and the center distance L2 of adjacent magnetic poles 40 can also be made smaller, so that the distance moved by the movable subassembly 3 each time is smaller and the movement accuracy is higher. Of course, in other embodiments, the three coils 30 can also be set on the same height plane.

[0077] It is understandable that when there are two coils 30 , they can also be staggered up and down to reduce the size of the mover assembly 3 and improve the movement accuracy.

[0078] Optionally, the coils 30 are arranged at equal intervals, that is, the center distance L1 between two adjacent coils 30 is the same. When the number of coils 30 is three, optionally, the center distance L1 between two adjacent coils 30 is one third of the center distance L2 between two adjacent magnetic poles 40.

[0079] The utility model also provides a mixing console, which comprises the direct-drive potentiometer regulator mentioned above.

[0080] The above are only specific implementations of the present invention, and any improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A direct-drive potentiometer regulator, characterized in that: include: The housing component (1) is provided with a receiving cavity (10); A push rod (2), partially exposed outside the housing assembly (1), capable of moving along a straight line relative to the housing assembly (1); A movable subassembly (3) is connected to the push rod (2) and is slidably coupled to the housing assembly (1), wherein the movable subassembly (3) comprises at least two coils (30) arranged along the movement direction of the push rod (2); and A stator assembly (4) comprising a magnetic pole array arranged opposite to the coil (30), the magnetic pole array comprising a plurality of magnetic poles (40) arranged along the movement direction of the push rod (2), and the polarities of two adjacent magnetic poles (40) being opposite; The push rod (2) is moved along a straight line by alternately energizing the coil (30).

2. The direct-drive potentiometer regulator according to claim 1, characterized in that: When a coil (30) is aligned with a magnetic pole (40), the aligned coil (30) and magnetic pole (40) are respectively called an alignment coil and an alignment magnetic pole, and the coil (30) adjacent to the alignment coil is located on a side of the magnetic pole (40) adjacent to the alignment magnetic pole that is biased toward the alignment magnetic pole. When the coil (30) is energized, it is attracted by the adjacent magnetic pole (40) and repelled by the alignment magnetic pole, so that the energized coil moves to align with the adjacent magnetic pole (40).

3. The direct-drive potentiometer regulator according to claim 2, characterized in that: The adjacent coils (30) are at least partially located directly above the adjacent magnetic poles (40).

4. The direct-drive potentiometer regulator according to claim 1, characterized in that: The center distances between two adjacent magnetic poles (40) are the same; The number of the coils (30) is two, and the center distance between two adjacent coils (30) is equal to half the center distance between two adjacent magnetic poles (40); or, The number of the coils (30) is three, and the center distance between two adjacent coils (30) is the same and equal to one third of the center distance between two adjacent magnetic poles (40); When one coil (30) is energized, the other coils (30) are de-energized.

5. The direct-drive potentiometer regulator according to claim 1, characterized in that: Along the axial direction of the coil (30), the distances between all the coils (30) and the magnetic pole (40) are the same; or, Two adjacent coils (30) are staggered in the axial direction thereof, and their projections along the axial direction have overlapping areas.

6. The direct-drive potentiometer regulator according to claim 1, characterized in that: The stator assembly (4) comprises a plurality of magnets (41) arranged along the movement direction of the push rod (2), and the plurality of magnets (41) are oriented toward the magnetic poles (40) of the coil (30) to form the magnetic pole array.

7. The direct-drive potentiometer regulator according to any one of claims 1 to 6, characterized in that: The direct-drive potentiometer regulator comprises a control circuit module electrically connected to the coil (30), the control circuit module being used to energize the coil (30) and being capable of calculating position information of the mover assembly (3) based on the energization condition of the coil (30), wherein the energization condition comprises the number of energization times and the direction of the current.

8. The direct-drive potentiometer regulator according to any one of claims 1 to 6, characterized in that: The mover assembly (3) comprises a connecting plate (31) connected between the push rod (2) and the coil (30), the connecting plate (31) being provided with an input interface (310) and an output interface (311), and the direct-drive potentiometer regulator further comprises a control circuit module electrically connected to the input interface (310), the output interface (311) and the coil (30); The connecting plate (31) is a circuit board, and the control circuit module is arranged on the connecting plate (31).

9. The direct-drive potentiometer regulator according to claim 8, characterized in that: The coil (30) is arranged on the surface of the connecting plate (31) facing the stator assembly (4) and is arranged relative to the stator assembly (4) at a distance. The coil (30) and the push rod (2) are respectively located on both sides of the connecting plate (31).

10. The direct-drive potentiometer regulator according to claim 8, characterized in that: It also includes a track (5) fixed relative to the housing component (1), wherein the track (5) supports the connecting plate (31) and is slidably connected to the connecting plate (31).

11. The direct-drive potentiometer regulator according to claim 10, characterized in that: The track (5) comprises a plurality of rollers (50) arranged along the moving direction of the push rod (2), and the connecting plate (31) is supported by the rollers (50); A track (5) is provided on both sides of the connecting plate (31), and the stator assembly (4) is located between the two tracks (5).

12. The direct-drive potentiometer regulator according to any one of claims 1 to 6, characterized in that: The housing assembly (1) comprises a bottom plate (11) and a top plate (12) which are arranged opposite to each other; The top plate (12) is provided with a slide groove (120) extending along the movement direction of the push rod (2), and the push rod (2) is arranged in the slide groove (120); The stator assembly (4) is disposed in the receiving cavity (10) and is relatively fixed to the bottom plate (11).

13. A mixing console, characterized in that: It comprises the direct-drive potentiometer regulator as claimed in any one of claims 1 to 12.

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