Knob wire controller, electrical appliance having same, and electrical appliance operating parameter adjustment method

Abstract

The present invention provides a knob wire controller and an electrical appliance having the same, and a method for adjusting the operating parameters of the electrical appliance, wherein the knob wire controller comprises a rotating member and a dial switch, wherein the rotating member has a dial structure, the dial switch has a swing head, the swing head has a first surface, and further comprises a contact judgment component for detecting whether the dial structure is in contact with the first surface, wherein the contact judgment component comprises a first conductor on the first surface and a second conductor on the dial structure. According to the present invention, the relative position of the swing head and the dial structure can be accurately detected by determining whether the first conductor and the second conductor are conductive or not, and then the judgment rule in the corresponding control component can be set, which helps to prevent the occurrence of erroneous operation of the knob wire controller in the first direction rotation process in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of wire controller design, and in particular relates to a knob wire controller, an electrical appliance having the same, and a method for adjusting operating parameters of the electrical appliance. Background Art

[0002] Users have increasingly higher demands for diversified electrical products, novel appearance, and diversified functions. The knob wire controller serves as a parameter adjustment control component for the corresponding electrical appliances, including a rotating shell (rotating part) and a dial switch therein. The swing head of the dial switch can be periodically toggled by the shift structure of the rotating shell during the rotation of the rotating shell to form a resettable swing angle, thereby triggering the adjustment of corresponding parameters of the electrical appliance (such as control parameters or operating parameters) when the swing head returns to the middle position, such as increasing or decreasing the temperature by a preset degree, increasing or decreasing the speed by a preset number of revolutions, etc. However, the knob wire controller in the prior art may cause misoperation when the user rotates to adjust the parameters. Summary of the invention

[0003] Therefore, the present invention provides a knob wire controller, an electrical appliance having the same, and a method for adjusting the operating parameters of the electrical appliance, so as to overcome the defect of the knob wire controller in the prior art that there is a misoperation phenomenon.

[0004] In order to solve the above problems, the present invention provides a knob wire controller, including a rotating member and a dial switch, the rotating member having a dial structure, the dial switch having a swing head, projected on any rotation plane of the rotating member, the swing head having a first surface, and also including a contact judgment component for detecting whether the dial structure is in contact with the first surface, the contact judgment component including a first conductor on the first surface and a second conductor on the dial structure.

[0005] Preferably, the swing head also has a second surface arranged opposite to the first surface. When the rotating member is driven to rotate along the second direction, the shift structure contacts the second surface and shifts the swing head to generate a swing angle. The contact judgment component also includes a third conductor on the second surface. The second direction is opposite to the first direction.

[0006] Preferably, at least one of the first conductor, the second conductor and the third conductor is made of metal.

[0007] Preferably, the dip switch comprises a switch body, and the switch body comprises a first pad corresponding to the first conductor and a second pad corresponding to the third conductor.

[0008] Preferably, the contact judgment component also includes a control component, which is used to obtain the conductivity between the second conductor and the first conductor or the third conductor, the current rotation direction and the last rotation direction of the rotating member, and control the adjustment of parameters when the swing conduction of the dip switch is detected for the first time, and when the second conductor is conductive with the first conductor and the current rotation direction and the last rotation direction of the rotating member are both the first direction, and the dip switch is swung toward the first direction for conduction, or when the second conductor is conductive with the third conductor and the current rotation direction and the last rotation direction of the rotating member are both the second direction, and the dip switch is swung toward the second direction for conduction; or, the contact judgment component also includes a control component, which is used to obtain the conductivity between the second conductor and the first conductor or the third conductor, the current rotation direction and the last rotation direction of the rotating member, and when the swing conduction of the dip switch is detected for the first time, and control the adjustment of parameters when the second conductor is conductive with the third conductor and the current rotation direction and the last rotation direction of the rotating member are both the second direction, and the dip switch is swung toward the second direction for conduction.

[0009] Preferably, the rotating member has a hollow cavity, the cavity wall of the hollow cavity is a cylindrical wall, and the plurality of shifting structures are evenly spaced along the circumferential direction of the cylindrical wall.

[0010] Preferably, a plurality of grooves are constructed on the cylindrical wall, and the plurality of grooves are evenly spaced along the circumferential direction of the cylindrical wall, and the groove wall between any two adjacent grooves forms the shifting structure.

[0011] The present invention also provides an electrical appliance, comprising the above-mentioned knob wire controller.

[0012] The present invention also provides a method for adjusting the operating parameters of the above-mentioned electrical appliance, comprising the following steps:

[0013] Obtaining the conduction status of the second conductor and the first conductor or the third conductor, the current rotation direction and the last rotation direction of the rotating member, and the swing conduction status of the DIP switch;

[0014] When the swing conduction of the DIP switch is detected for the first time, the control parameters are adjusted according to the conduction between the second conductor and the first conductor or the third conductor, the current rotation direction and the last rotation direction of the rotating member, and the swing conduction of the DIP switch.

[0015] Preferably, the control parameter adjustment according to the conduction condition between the second conductor and the first conductor or the third conductor, the current rotation direction and the last rotation direction of the rotating member, and the swing conduction condition of the DIP switch includes:

[0016] When the second conductor is connected to the first conductor, the current rotation direction and the last rotation direction of the rotating member are both the first direction, and the DIP switch is swung toward the first direction, the control parameter is adjusted according to the first preset rule; or,

[0017] When the second conductor is conductively connected to the third conductor, the current rotation direction and the last rotation direction of the rotating member are both the second direction, and the DIP switch is swung toward the second direction, the control parameter is adjusted according to the second preset rule; or,

[0018] When the second conductor and the third conductor and the first conductor are not conducting, the current rotation direction of the rotating member is the first direction, the last rotation direction of the rotating member is the first direction or the second direction, and the DIP switch is swung toward the first direction to conduct, the control parameter is adjusted according to the first preset rule; or,

[0019] When the second conductor, the third conductor and the first conductor are all not conductive, the current rotation direction of the rotating member is the second direction, the last rotation direction of the rotating member is the first direction or the second direction, and the dip switch swings toward the second direction to be conductive, the control parameters are adjusted according to the second preset rule.

[0020] The present invention provides a knob wire controller, an electrical appliance having the same, and a method for adjusting the operating parameters of the electrical appliance. By determining whether a first conductor on a swing head and a second conductor on a shift structure are conductive or not, the relative position of the swing head and the shift structure can be accurately detected. Furthermore, by setting judgment rules in corresponding control components, it is helpful to prevent the occurrence of erroneous operation of the knob wire controller in the first direction during rotation in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the internal structure of the knob wire controller according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 The figure is a schematic diagram of the internal structure of a knob wire controller in the prior art.

[0024] The reference numerals are:

[0025] 1. Rotating member; 11. Shifting structure; 12. Groove; 2. DIP switch; 21. Swinging head; 211. First surface; 212. Second surface; 22. Switch body; 31. First conductor; 32. Second conductor; 33. Third conductor. DETAILED DESCRIPTION

[0026] In the related art, it is assumed that the knob wire controller is designed to control the set temperature adjustment of the air conditioner, see Figure 3 As shown, the rotating member a is rotated clockwise for 1°C increase in temperature and counterclockwise for 1°C decrease in temperature. The initial set temperature of the air conditioner is 20°C. The user rotates clockwise for a certain angle in a parameter adjustment cycle (i.e., adjustment in one direction at a time). For example, the first shift structure b1 and the second shift structure b2 respectively apply forces to the swing head c, and the third shift structure b3 does not exceed the maximum deflection angle position of the swing head c. That is, when the user stops rotating the rotating member a clockwise, the third shift structure b3 does not trigger the parameter adjustment of the dial switch (the swing head does not return to the middle position, such as Figure 3 The position shown by the swing head c in the dotted line is only pressed by the third shift structure b3 within the swing angle range. At this time, the set temperature actually adjusted by the user is 22°C (the increase of 2°C is triggered by the first shift structure b1 and the second shift structure b2 respectively). When the user rotates the rotating member a in the opposite direction, that is, counterclockwise (with the intention of cooling down), the third shift structure b3 will lose contact with the swing head c. At this time, the swing head c is restored to the middle position and triggers the set temperature of the air conditioner to rise by 1°C first. This is obviously contrary to the user's intention of cooling down, that is, the knob wire controller in the prior art has the disadvantage of misoperation.

[0027] In order to overcome the above shortcomings, refer to Figure 1 to Figure 2As shown, according to an embodiment of the present invention, a knob wire controller is provided, comprising a rotating member 1 and a dial switch 2, wherein the rotating member 1 has a shifting structure 11, and the dial switch 2 has a swinging head 21. When projected on any rotation plane of the rotating member 1, the swinging head 21 has a first surface 211. When the rotating member 1 is driven (for example, a user manually twists the rotating member 1) to rotate along a first direction (specifically, for example, clockwise), the shifting structure 11 contacts the first surface 211 and shifts the swinging head 21 to generate a swing angle (and it can be understood that when the swing angle enters the preset angle range of the dial switch 2 and the swinging head 21 returns to the middle position, the knob wire controller in the prior art will control the corresponding electrical parameters to be adjusted). The knob wire controller also comprises a contact judgment component (not marked in the figure) for detecting whether the shifting structure 11 is in contact with the first surface 211. The contact judgment component comprises a first conductor 31 on the first surface 211 and a second conductor 32 on the shifting structure 11. It can be understood that a corresponding control component (not shown in the figure) can also be provided in the contact judgment component, and the control component is used to obtain the conduction condition between the second conductor 32 and the first conductor 31 or the third conductor 33, the current rotation direction and the last rotation direction of the rotating member 1, and when the swing conduction of the dip switch 2 is detected for the first time, and when the second conductor 32 and the first conductor 31 are conductive, the current rotation direction and the last rotation direction of the rotating member 1 are both the first direction, and the dip switch 2 is swung and conductive toward the first direction, the control parameter is adjusted; or, the control component is used to obtain the conduction condition between the second conductor 32 and the first conductor 31 or the third conductor 33, the current rotation direction and the last rotation direction of the rotating member 1, and when the swing conduction of the dip switch 2 is detected for the first time, and when the second conductor 32 and the third conductor 33 are conductive, the current rotation direction and the last rotation direction of the rotating member 1 are both the second direction, and the dip switch 2 is swung and conductive toward the second direction, the control parameter is adjusted. The control component can preferably be used as an organic component of the knob wire controller of the present invention. Of course, in some embodiments, the control component may not be a component of the knob wire controller, that is, the control component can be manufactured separately and only be connected and used in conjunction with the knob wire controller of the present invention. At this time, it is only necessary to connect the first conductor 31 and the second conductor 32 in series with the corresponding circuit in the control component.

[0028] In this technical solution, the relative position of the swing head 21 and the shift structure 11 can be accurately detected by determining whether the first conductor 31 on the swing head 21 and the second conductor 32 on the shift structure 11 are conductive or not, and then the judgment rules in the corresponding control components can be set, which helps to prevent the occurrence of erroneous operation of the knob wire controller in the first direction during rotation in the prior art.

[0029] In some embodiments, the swing head 21 also has a second surface 212 disposed opposite to the first surface 211. When the rotating member 1 is driven to rotate along the second direction, the shifting structure 11 contacts the second surface 212 and shifts the swing head 21 to generate a swing angle. The contact judgment component also includes a third conductor 33 on the second surface 212. The second direction is opposite to the first direction (specifically, when the first direction is clockwise, the second direction is counterclockwise). In this technical solution, the relative position of the swing head 21 and the shifting structure 11 can be accurately detected by determining whether the third conductor 33 is connected to the second conductor 32. Then, the judgment rules in the corresponding control component can be set to effectively prevent the occurrence of erroneous operation of the knob wire controller in the second direction rotation process in the prior art.

[0030] In some embodiments, at least one of the first conductor 31, the second conductor 32, and the third conductor 33 is made of metal, and the metal may be, for example, a copper sheet or an aluminum sheet with a certain rigidity. Preferably, the first conductor 31, the second conductor 32, and the third conductor 33 are all copper sheets, thereby improving the overall service life of the knob wire controller.

[0031] In some embodiments, the DIP switch 2 has a switch body 22, and the switch body 22 has a first pad (not shown in the figure) corresponding to the first conductor 31 and a second pad (not shown in the figure) corresponding to the third conductor 33. The first pad and the second pad are used as direct connection points or indirect connection points between the first conductor 31 and the third conductor 33 and the control component, which can make the connection between the two more reliable. At this time, preferably, the control component is fixedly connected to the switch body 22 as a whole, and the connection between the second conductor 32 and the control component should consider the working condition that the rotating member 1 needs to rotate. For example, it can be electrically connected to the corresponding electrical terminal of the control component by means of a conductive slip ring. In some embodiments, the control component is preferably a DIP control board of the DIP switch itself. At this time, the function of the DIP control board can be expanded according to the functions required by the control component of the present invention, thereby improving the compactness of the structure of the knob wire controller and reducing the manufacturing cost. In this way, the technical solution of the present invention only adds the aforementioned first conductor 31, second conductor 32, third conductor 33 and corresponding connecting lines, and can utilize the functional expansion of the dial control board (specifically can be set through software) to achieve the occurrence of knob misoperation, without the need to add other sensors, and the improvement cost is relatively small.

[0032] In some embodiments, the rotating member 1 has a hollow cavity, the cavity wall of the hollow cavity is a cylindrical wall, the dial switch 2 is in the cylindrical cavity, and the plurality of the shift structures 11 are evenly spaced along the circumferential direction of the cylindrical wall, so that the shift structure 11 can trigger the dial switch 2 without an upper limit on the number of times, which is conducive to setting the amplitude of parameter adjustment to be smaller, thereby making the parameter adjustment more precise (for example, the original adjustment amplitude of the temperature for one trigger is to increase or decrease by 1°C, while using the technical solution of the present invention, the adjustment amplitude for one trigger can be increased or decreased by 0.1°C).

[0033] As a specific implementation method, a plurality of grooves 12 are constructed on the cylindrical wall, and the plurality of grooves 12 are evenly spaced along the circumferential direction of the cylindrical wall. The groove wall between any two adjacent grooves 12 forms the shift structure 11, and the second conductor 32 can be wrapped on the side of the groove wall facing the swing head 21.

[0034] According to an embodiment of the present invention, there is also provided an electrical appliance, comprising the above-mentioned knob wire controller. The electrical appliance may be, for example, an air conditioner, a humidifier,

[0035] According to an embodiment of the present invention, there is also provided a method for adjusting the operating parameters of the above-mentioned electrical appliance, comprising the following steps:

[0036] Obtaining the conduction status of the second conductor 32 and the first conductor 31 or the third conductor 33, the current rotation direction and the last rotation direction of the rotating member 1, and the swing conduction status of the DIP switch 2;

[0037] When the swing conduction of the DIP switch 2 is detected for the first time (that is, the DIP switch 2 is turned to achieve circuit conduction, such as swinging to the left or swinging to the right by a preset angle), the control parameters are adjusted according to the conduction between the second conductor 32 and the first conductor 31 or the third conductor 33, the current rotation direction and the last rotation direction of the rotating part 1, and the swing conduction of the DIP switch 2.

[0038] In this technical solution, by determining whether the first conductor 31 on the swing head 21 and the second conductor 32 on the shift structure 11 are conductive or not, the relative position of the swing head 21 and the shift structure 11 can be accurately detected when the user rotates the rotating member 1 again, and then the judgment rules in the corresponding control components can be set to effectively prevent the occurrence of erroneous operation of the knob wire controller in the prior art during rotation in the first direction and the second direction.

[0039] According to the conduction condition between the second conductor 32 and the first conductor 31 or the third conductor 33, the current rotation direction and the last rotation direction of the rotating member 1, and the swing conduction condition of the dial switch 2, the control parameter adjustment specifically includes:

[0040] When the second conductor 32 is connected to the first conductor 31, the current rotation direction and the last rotation direction of the rotating member 1 are both the first direction, and the dial switch 2 is swung toward the first direction to be connected, the control parameter is adjusted according to the first preset rule. For example, when the electrical appliance is an air conditioner and the parameter is a set temperature, the first preset rule may be that the rotating member 1 is rotated in the first direction, and each time the swing head 21 is swung once to make it swing and return to the middle position, the set temperature increases by 1°C; or,

[0041] When the second conductor 32 and the third conductor 33 are conducting, the current rotation direction and the last rotation direction of the rotating member 1 are both the second direction, and the dial switch 2 is swung toward the second direction and conducting, the control parameter is adjusted according to the second preset rule. For example, when the electrical appliance is an air conditioner and the parameter is a set temperature, the second preset rule may be that the rotating member 1 is rotated in the second direction, and each time the swing head 21 is swung once to make it swing and return to the middle position, the set temperature is reduced by 1°C; or,

[0042] When the second conductor 32, the third conductor 33 and the first conductor 31 are all not conducting, the current rotation direction of the rotating member 1 is the first direction, the last rotation direction of the rotating member 1 is the first direction or the second direction, and the DIP switch 2 swings toward the first direction to conduct, the control parameter is adjusted according to the first preset rule; or,

[0043] When the second conductor 32, the third conductor 33 and the first conductor 31 are all not conductive, the current rotation direction of the rotating member 1 is the second direction, the last rotation direction of the rotating member 1 is the first direction or the second direction, and the dip switch 2 swings toward the second direction to be conductive, the control parameters are adjusted according to the second preset rule.

[0044] When the second conductor 32 and the third conductor 33 or the second conductor 32 and the first conductor 31 are conducting, but the current rotation direction of the rotating member 1 is inconsistent with the last rotation direction, the parameters are not adjusted.

[0045] The following combination Figure 2 A specific embodiment of the present invention is described.

[0046] like Figure 2As shown, the left and right sides of the triangular swing head 21 of the DIP switch 2 are respectively designed to be metal (i.e., the first conductor 31 and the third conductor 33) and are respectively connected to the two pads of the switch (i.e., the first pad and the second pad), and the gear position (i.e., the gear shift structure 11) of the knob (i.e., the rotating part 1) is also designed to be metal. When the metal on the left side of the swing head 21 contacts the gear position, the left conduction program executes the corresponding action, and when the metal on the right side of the DIP switch contacts the gear position, the right conduction program executes the corresponding action. A memory function is set for the misoperation processing software (i.e., configured in the control component) to remember whether the last state of the knob was left-hand rotation or right-hand rotation (i.e., the first direction or the second direction), and to detect whether the swing head 21 and the knob are in a conductive state in the current state. When the last state of the knob is to rotate to the left, the dial is detected to be in a left conductive state. When the next operation (i.e., the current operation) requires rotation to the right, the first time the dial switch is detected to be swung on, no processing is performed (i.e., parameter adjustment is not performed), so that the above-mentioned misoperation will not occur; in another case, When neither the left side nor the right side is conductive, since the knob is in a rotating state (regardless of the last and current rotation directions), it means that the swing head 21 is in a neutral position between the two gears. When the first time the dip switch is detected to be swung on, the parameter adjustment is performed normally. In another case, when the previous state of the knob is to rotate to the left, the dial is detected to be in the left conductive state, and the next operation (that is, the current operation) needs to be rotated to the left, the parameter adjustment is performed when the dip switch is detected to be swung on for the first time. Whether the corresponding software performs the corresponding operation in each case is shown in the following table.

[0047]

[0048] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A rotary knob wire controller, comprising a rotating member (1) and a dial switch (2), wherein the rotating member (1) has a shift structure (11), and the dial switch (2) has a swing head (21), and when projected onto any rotation plane of the rotating member (1), the swing head (21) has a first surface (211), characterized in that: When the rotating member (1) is driven to rotate along a first direction, the shifting structure (11) contacts the first surface (211) and shifts the oscillating head (21) to generate a swing angle. The knob wire controller further comprises a contact judging component for detecting whether the shifting structure (11) is in contact with the first surface (211). The contact judging component comprises a first conductor (31) on the first surface (211) and a second conductor (32) on the shifting structure (11). The oscillating head (21) further comprises a second surface (212) arranged opposite to the first surface (211). When the rotating member (1) is driven to rotate along a second direction, the shifting structure (11) contacts the second surface (212) and shifts the oscillating head (21) to generate a swing angle. The contact judgment component further comprises a third conductor (33) on the second surface (212), and the second direction is opposite to the first direction; the contact judgment component further comprises a control component, the control component is used to obtain the conduction condition between the second conductor (32) and the first conductor (31) or the third conductor (33), the current rotation direction and the last rotation direction of the rotating member (1), and the swing conduction condition of the dial switch (2); when the swing conduction of the dial switch (2) is detected for the first time, the parameter adjustment is controlled according to the conduction condition between the second conductor (32) and the first conductor (31) or the third conductor (33), the current rotation direction and the last rotation direction of the rotating member (1), and the swing conduction condition of the dial switch (2), and the parameter adjustment comprises: When, in the initial state, the second conductor (32) and the first conductor (31) are conducting, the current rotation direction and the last rotation direction of the rotating member (1) are both the first direction, and the code switch (2) is directed toward the first direction beyond the maximum deflection position of the swing head, the control parameter is adjusted according to the first preset rule; or, when, in the initial state, the second conductor (32) and the third conductor (33) are conducting, the current rotation direction and the last rotation direction of the rotating member (1) are both the second direction, and the code switch (2) is directed toward the second direction beyond the maximum deflection position of the swing head, the control parameter is adjusted according to the second preset rule; or, when, in the initial state, the second conductor (32) and the third conductor (33) and the first conductor (31) are not conducting, the control parameter is adjusted according to the second preset rule. When the current rotation direction of the rotating member (1) is the first direction, the last rotation direction of the rotating member (1) is the first direction or the second direction, the code switch (2) and the first conductor (31) are connected and the maximum deflection angle position of the swing head is exceeded, the control parameter is adjusted according to the first preset rule; or, when the second conductor (32) and the third conductor (33) and the first conductor (31) are all disconnected in the initial state, the current rotation direction of the rotating member (1) is the second direction, the last rotation direction of the rotating member (1) is the first direction or the second direction, the code switch (2) and the third conductor (33) are connected and the maximum deflection angle position of the swing head is exceeded, the control parameter is adjusted according to the second preset rule; in other cases, the parameter is not adjusted.

2. The knob wire controller according to claim 1, characterized in that: At least one of the first conductor (31), the second conductor (32), and the third conductor (33) is made of metal.

3. The knob wire controller according to claim 2, characterized in that: The dip switch (2) has a switch body (22), and the switch body (22) has a first soldering pad corresponding to the first conductor (31) and a second soldering pad corresponding to the third conductor (33).

4. The knob wire controller according to claim 1, characterized in that: The rotating member (1) has a hollow cavity, the cavity wall of the hollow cavity is a cylindrical wall, and a plurality of shifting structures (11) are evenly spaced along the circumferential direction of the cylindrical wall.

5. The knob wire controller according to claim 4, characterized in that: A plurality of grooves (12) are constructed on the cylindrical wall, the plurality of grooves (12) are evenly spaced along the circumferential direction of the cylindrical wall, and the groove wall between any two adjacent grooves (12) forms the shifting structure (11).

6. An electrical appliance, comprising a knob wire controller, characterized in that: The knob wired controller is the knob wired controller according to any one of claims 1 to 5.

7. A method for adjusting operating parameters of an electrical appliance according to claim 6, characterized in that: The steps include: Obtaining the conduction condition between the second conductor (32) and the first conductor (31) or the third conductor (33), the current rotation direction and the last rotation direction of the rotating member (1), and the swing conduction condition of the dial switch (2); When the swing conduction of the DIP switch (2) is detected for the first time, the control parameters are adjusted according to the conduction condition between the second conductor (32) and the first conductor (31) or the third conductor (33), the current rotation direction and the last rotation direction of the rotating member (1), and the swing conduction condition of the DIP switch (2).

8. The operating parameter adjustment method according to claim 7, characterized in that: According to the conduction condition between the second conductor (32) and the first conductor (31) or the third conductor (33), the current rotation direction and the last rotation direction of the rotating member (1), and the swing conduction condition of the dial switch (2), the control parameter adjustment includes: When, in the initial state, the second conductor (32) is conductively connected to the first conductor (31), the current rotation direction and the last rotation direction of the rotating member (1) are both the first direction, and the dial switch (2) is directed toward the first direction beyond the maximum deflection angle position of the swing head, the control parameter is adjusted according to a first preset rule; or, When, in the initial state, the second conductor (32) and the third conductor (33) are conducting, the current rotation direction and the last rotation direction of the rotating member (1) are both the second direction, and the code switch (2) is directed toward the second direction beyond the maximum deflection angle position of the swing head, the control parameter is adjusted according to a second preset rule; or, When, in the initial state, the second conductor (32), the third conductor (33) and the first conductor (31) are all not conducting, the current rotation direction of the rotating member (1) is the first direction, the last rotation direction of the rotating member (1) is the first direction or the second direction, the DIP switch (2) and the first conductor (31) are conducting and the maximum deflection angle position of the swing head is exceeded, the control parameter is adjusted according to the first preset rule; or, When, in the initial state, the second conductor (32), the third conductor (33) and the first conductor (31) are all not conducting, the current rotation direction of the rotating member (1) is the second direction, the last rotation direction of the rotating member (1) is the first direction or the second direction, the DIP switch (2) and the third conductor (33) are conducting and the maximum deflection angle position of the swing head is exceeded, the control parameter is adjusted according to a second preset rule; In other cases, the parameters are not adjusted.

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