CN109917685A - The control circuit and vibration isolation controller of isolation mounting - Google Patents
The control circuit and vibration isolation controller of isolation mounting Download PDFInfo
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- CN109917685A CN109917685A CN201910279256.3A CN201910279256A CN109917685A CN 109917685 A CN109917685 A CN 109917685A CN 201910279256 A CN201910279256 A CN 201910279256A CN 109917685 A CN109917685 A CN 109917685A
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Abstract
The invention proposes a kind of control circuit of isolation mounting and vibration isolation controllers, isolation mounting includes the pressure drag material, marmem and heating coil set gradually, control circuit includes: bridge circuit, voltage variety is converted into for detecting the change in resistance amount of pressure drag material, and by change in resistance amount；Control circuit, for controlling the electric current in heating coil according to voltage variety, to control the temperature of marmem.The control circuit and vibration isolation controller of isolation mounting of the invention, control circuit controls the electric current in isolation mounting in heating coil according to voltage variety, to control the temperature of marmem in isolation mounting, to control the deformation of marmem, reach vibration isolating effect.The control that marmem deformation is realized by hardware circuit eliminates delay when chip operation, possesses faster response speed.
Description
Technical field
The present invention relates to field of circuit technology more particularly to the control circuits and vibration isolation controller of a kind of isolation mounting.
Background technique
Further investigation recently as scholars to marmem, pseudoelasticity and shape memory effect characteristic
It is widely used in the fields such as driving and vibration isolation.
In the related technology, the control system of single-chip microcontroller or processor is generallyd use to control the deformation of marmem,
Since chip is run there are certain delay, system response time is slower.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of control circuit of isolation mounting, bridge circuit detection every
The change in resistance amount of pressure drag material in vibrating device, and voltage variety is converted by change in resistance amount；Control circuit is according to voltage
Variable quantity controls the electric current in isolation mounting in heating coil, to control the temperature of marmem in isolation mounting, thus
The deformation for controlling marmem, reaches vibration isolating effect.The control of marmem deformation is realized by hardware circuit, is saved
Delay when chip having been gone to run, possesses faster response speed.
Second object of the present invention is to propose a kind of vibration isolation controller.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of control circuit of isolation mounting, it is described every
Vibrating device includes the pressure drag material, marmem and heating coil set gradually, the control circuit, the control circuit
Include:
Bridge circuit is converted into electricity for detecting the change in resistance amount of the pressure drag material, and by the change in resistance amount
Press variable quantity；
Control circuit, for controlling the electric current in the heating coil according to the voltage variety, to control the shape
The temperature of shape memory alloys.
The control circuit of the isolation mounting proposed according to embodiments of the present invention, isolation mounting include the pressure drag material set gradually
Material, marmem and heating coil, bridge circuit are used to detect the change in resistance amount of pressure drag material, and by change in resistance amount
It is converted into voltage variety；Control circuit is used to control the electric current in heating coil according to voltage variety, to control shape note
Recall the temperature of alloy, to control the deformation of marmem, reaches vibration isolating effect.Shape memory is realized by hardware circuit
The control of alloy deformation eliminates delay when chip operation, possesses faster response speed.
According to one embodiment of present invention, the control circuit includes: comparison circuit, for determining that the voltage becomes
The grade of change amount；Driving circuit, for controlling the electric current in the heating coil according to the grade.
According to one embodiment of present invention, the comparison circuit is specifically used for: by the voltage variety and preset
Reference voltage sequence is compared, and determines the grade of the voltage variety.
According to one embodiment of present invention, the comparison circuit includes: resistance sequence, is used for preset reference voltage
It is divided into the reference voltage sequence of multiple gears；Comparator array, for the voltage variety and the reference is electric
Pressure sequence is compared, according to comparison result output driving sequence.
According to one embodiment of present invention, the driving circuit includes: DC voltage source, and the of the DC voltage source
One end is connect with the first end of the heating coil, for providing DC voltage；Relay array, the relay array series connection
Between the second end of the DC voltage source and the second end of the heating coil, multiple relays of the relay array
Both ends are parallel with current-limiting resistance, and the relay array according to the driving sequence for being opened or closed.
According to one embodiment of present invention, control circuit further include: filter circuit, the bridge circuit pass through described
Filter circuit is connect with the control circuit, and the filter circuit is for being filtered the voltage variety.
According to one embodiment of present invention, control circuit further include: amplifying circuit, the filter circuit pass through described
Amplifying circuit is connect with the control circuit, and the amplifying circuit is for putting the voltage variety after filtering processing
Big processing.
According to one embodiment of present invention, the bridge circuit is favour Stone circuit.
According to one embodiment of present invention, the resistance value of each resistance is equal in the resistance sequence.
In order to achieve the above object, second aspect of the present invention embodiment proposes a kind of vibration isolation controller, comprising: such as the present invention the
The control circuit of isolation mounting described in one side embodiment.
Detailed description of the invention
Fig. 1 is the structure chart of the control circuit of isolation mounting according to an embodiment of the invention；
Fig. 2 is the circuit diagram of bridge circuit according to an embodiment of the invention；
Fig. 3 is the circuit diagram of the control circuit of isolation mounting according to an embodiment of the invention；
Fig. 4 is the structure chart of vibration isolation controller according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
With reference to the accompanying drawing come describe the embodiment of the present invention isolation mounting control circuit and vibration isolation controller.
Fig. 1 is the structure chart of the control circuit of isolation mounting according to an embodiment of the invention, as shown in Figure 1, vibration isolation
Device includes the pressure drag material, marmem and heating coil set gradually, and control circuit includes:
Bridge circuit 11 for detecting the change in resistance amount of pressure drag material, and converts voltage for change in resistance amount Δ R and becomes
Change amount Δ V.
In the embodiment of the present invention, as shown in Figure 1, isolation mounting specifically may include the pressure drag material set gradually, shape note
Recall alloy and heating coil.Bridge circuit 11 can as shown in Figure 1, connect with the pressure drag material in isolation mounting, for detect every
The change in resistance amount Δ R of pressure drag material in vibrating device, and voltage variety Δ V is converted by change in resistance amount Δ R.
Specifically, as shown in Figure 1, pressure drag material will generate strain when isolation mounting is vibrated.By pressure FNIt produces
Raw strain is ε=FN/ EA, by shearing FSThe shearing stress of generation is τ=FS/ GA, wherein E is pressure drag material elasticity modulus, and G is
The pressure drag material coefficient of rigidity, A are pressure drag material sectional area.Then change in resistance amount Δ R=R [ε, τ] [k of pressure drag material1,
k2]T, wherein R is the initial resistivity value of pressure drag material, k1、k2For constant factor.
The concretely favour Stone circuit as shown in Figure 2 of bridge circuit 11, accesses pressure drag material in bridge circuit 11, when
It is extraneous not add excitation, i.e., when pressure drag material does not generate strain, bridge balance can be made, output voltage is zero or very little；When extraneous defeated
When entering such as stress excitation, pressure drag material generates strain, and resistance value generates variation accordingly, and bridge circuit 11 is according to change in resistance amount
Δ R output voltage variation delta V.
Control circuit 12, for controlling the electric current in heating coil according to voltage variety Δ V, to control shape memory conjunction
The temperature of gold.
In the embodiment of the present invention, control circuit 12 can be used for as shown in Figure 1, connect with the heating coil in isolation mounting
According to the voltage variety Δ V that bridge circuit 11 obtains, the electric current in isolation mounting in heating coil is controlled, to control vibration isolation dress
Set the temperature of middle marmem.Marmem, by deformation, can restore deformation under external force when the temperature rises, because
This, control circuit 12 controls the deformation of marmem by the temperature of marmem in control isolation mounting, reaches
To vibration isolating effect.
The control circuit of the isolation mounting proposed according to embodiments of the present invention, isolation mounting include the pressure drag material set gradually
Material, marmem and heating coil, bridge circuit are used to detect the change in resistance amount of pressure drag material, and by change in resistance amount
It is converted into voltage variety；Control circuit is used to control the electric current in heating coil according to voltage variety, to control shape note
Recall the temperature of alloy, to control the deformation of marmem, reaches vibration isolating effect.Shape memory is realized by hardware circuit
The control of alloy deformation eliminates delay when chip operation, possesses faster response speed.
Fig. 3 is the circuit diagram of the control circuit of isolation mounting in accordance with another embodiment of the present invention, as shown in figure 3,
On the basis of embodiment illustrated in fig. 1, control circuit 12 is specific can include:
Comparison circuit 21, for determining the grade of voltage variety Δ V；
Driving circuit 22, for controlling the electric current in heating coil according to grade.
In the embodiment of the present invention, comparison circuit 21 specifically can by voltage variety Δ V and preset reference voltage sequence V into
Row compares, and determines the grade of voltage variety, and driving circuit 22 controls the electric current in heating coil according to grade.
Further, as shown in figure 3, comparison circuit 21 is specific can include:
Resistance sequence 31, for preset reference voltage Vref to be divided into the reference voltage sequence V of multiple gears.
In the embodiment of the present invention, resistance sequence 31 includes several concatenated resistance, is used for preset reference voltage
Vref is divided into the reference voltage sequence V of multiple gears, wherein the resistance value of each resistance is equal in resistance sequence 31.Such as Fig. 2 institute
Show, resistance sequence 31 includes the equal resistance of tetra- resistance values of R4, R5, R6, R7, and R4 is connect with preset reference voltage Vref, R7
Ground connection.Then R4, R5, R6, R7 by preset reference voltage Vref be divided into four gears reference voltage sequence V=[V1, V2,
V3, V4].
Comparator array 32, for voltage variety Δ V and reference voltage sequence V to be compared, according to comparison result
Output driving sequence Q.
In the embodiment of the present invention, comparator array 32 includes several comparators in parallel, is used for voltage variety Δ V
It is compared with reference voltage sequence V, according to comparison result output driving sequence Q.Such as shown in Fig. 2, comparator array 32 is wrapped
Include tetra- comparators of C1, C2, C3, C4, V1, V2 in the input negative terminal difference input reference voltage sequence V of C1, C2, C3, C4,
V3, V4, the input anode input voltage variation delta V of C1, C2, C3, C4, according to the comparison result output driving sequence of Δ V and V
Q。
Further, as shown in figure 3, driving circuit 22 is specific can include:
The first end of DC voltage source DC, DC voltage source DC and the first end of heating coil connect, for providing direct current
Voltage Udc。
Relay array 33, relay array 33 are series at the second end of DC voltage source DC and the second end of heating coil
Between, multiple relay both ends of relay array 33 are parallel with current-limiting resistance, and relay array 33 is used for according to driving sequence Q
It is opened or closed.
In the embodiment of the present invention, relay array 33 includes several relays, is series at the second of DC voltage source DC
Between end and the second end of heating coil, multiple relay both ends of relay array 33 are parallel with current-limiting resistance, relay battle array
Column 33 are used to be opened or closed according to driving sequence Q.Such as shown in Fig. 2, relay array 33 include K1, K2, K3, K4 tetra- after
The both ends point of electric appliance, K1, K2, K3 are parallel with current-limiting resistance R1, R2, R3, and K1, K2, K3, K4 are defeated with C1, C2, C3, C4 respectively
Outlet connection, for being opened or closed according to driving sequence Q.
Further, as shown in figure 3, the control circuit may also include that
Filter circuit 13, bridge circuit 11 are connect by filter circuit 13 with control circuit 12, and filter circuit 13 is used for pair
Voltage variety Δ V is filtered.
In the embodiment of the present invention, the concretely RC low-pass filter circuit of filter circuit 13.
Further, as shown in figure 3, the control circuit may also include that
Amplifying circuit 14, filter circuit 13 are connect by amplifying circuit 14 with control circuit 12, and amplifying circuit 14 is used for pair
Voltage variety after filtering processing amplifies processing.
In the embodiment of the present invention, the concretely amplifier as shown in Figure 2 of amplifying circuit 14.
The working principle of the control circuit of the embodiment of the present invention is discussed in detail by taking Fig. 3 as an example below:
Isolation mounting is shaken, and deformation occurs for pressure drag material, and the resistance change of pressure drag material is Δ R, electric bridge electricity
Resistance change Δ R is converted to voltage variety Δ V by road 11, and filter circuit 13 is filtered voltage variety Δ V,
Voltage variety after 14 pairs of amplifying circuit filtering processings amplifies processing, the signal S that obtains that treated, and is input to
Comparator sequence 32 can specifically be input to the input anode of C1, C2, C3, C4.
Preset reference voltage Vref is divided into the reference of four gears by resistance R4, R5, R6, R7 in resistance sequence 31
Contact potential series V=[V1, V2, V3, V4], and it is input to comparator sequence 32, V1, V2, V3, V4 can specifically be inputted respectively
To the input negative terminal of C1, C2, C3, C4.
Comparator sequence 32 compares S and V, obtains driving sequence Q=f (S, V) according to comparison result, wherein
According to above-mentioned formula it is found that when [0,0,0,0] Q=, all voltage values that S is less than in reference voltage sequence are indicated,
At this point, K1, K2, K3, K4 will not be closed in relay sequence 33, because K4 is disconnected, entire circuit is in off state,
Therefore heating coil no power.When Q=[0,0,0,1], relay K4 closure, heating coil current I4, due to having three at this time
The effect of a current-limiting resistance R1, R2, R3, heating coil is in low current condition at this time, and marmem is in low heating shape
State.Similarly it is found that heating coil current I size and the relationship of S are,
When S > V4:
I=Udc/ { [R1, R2, R3,0] QT}=Udc/ { [R1, R2, R3,0] (f (S, V)T)}；
When S≤V4:
I=0.
Relay sequence 33 is opened or closed according to driving sequence Q, to control the electric current of heating coil, to realize shape
The shape control of memorial alloy, reaches vibration isolating effect.
The control circuit of the isolation mounting proposed according to embodiments of the present invention, isolation mounting include the pressure drag material set gradually
Material, marmem and heating coil, bridge circuit are used to detect the change in resistance amount of pressure drag material, and by change in resistance amount
It is converted into voltage variety；Control circuit is used to control the electric current in heating coil according to voltage variety, to control shape note
Recall the temperature of alloy, to control the deformation of marmem, reaches vibration isolating effect.Shape memory is realized by hardware circuit
The control of alloy deformation eliminates delay when chip operation, possesses faster response speed.
To realize above-described embodiment, the invention also provides a kind of vibration isolation controllers 40, as shown in Figure 4, comprising: as above state
The control circuit 41 of isolation mounting shown in embodiment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of control circuit of isolation mounting, which is characterized in that the isolation mounting includes the pressure drag material set gradually, shape
Shape memory alloys and heating coil, the control circuit include:
Bridge circuit for detecting the change in resistance amount of the pressure drag material, and converts voltage for the change in resistance amount and becomes
Change amount；
Control circuit, for controlling the electric current in the heating coil according to the voltage variety, to control the shape note
Recall the temperature of alloy.
2. control circuit according to claim 1, which is characterized in that the control circuit includes:
Comparison circuit, for determining the grade of the voltage variety；
Driving circuit, for controlling the electric current in the heating coil according to the grade.
3. control circuit according to claim 2, which is characterized in that the comparison circuit is specifically used for:
The voltage variety and preset reference voltage sequence are compared, determine the grade of the voltage variety.
4. control circuit according to claim 3, which is characterized in that the comparison circuit includes:
Resistance sequence, for preset reference voltage to be divided into the reference voltage sequence of multiple gears；
Comparator array, it is defeated according to comparison result for the voltage variety and the reference voltage sequence to be compared
Sequence is driven out.
5. control circuit according to claim 4, which is characterized in that the driving circuit includes:
DC voltage source, the first end of the DC voltage source is connect with the first end of the heating coil, for providing direct current
Voltage；
Relay array, the relay array are series at the second end and the second of the heating coil of the DC voltage source
Between end, multiple relay both ends of the relay array are parallel with current-limiting resistance, and the relay array is used for according to institute
Driving sequence is stated to be opened or closed.
6. control circuit according to claim 1, which is characterized in that further include:
Filter circuit, the bridge circuit are connect by the filter circuit with the control circuit, and the filter circuit is used for
The voltage variety is filtered.
7. control circuit according to claim 6, which is characterized in that further include:
Amplifying circuit, the filter circuit are connect by the amplifying circuit with the control circuit, and the amplifying circuit is used for
Processing is amplified to the voltage variety after filtering processing.
8. control circuit according to claim 1, which is characterized in that the bridge circuit is favour Stone circuit.
9. control circuit according to claim 4, which is characterized in that the resistance value of each resistance is equal in the resistance sequence.
10. a kind of vibration isolation controller characterized by comprising isolation mounting and such as described in any item vibration isolation of claim 1-9
The control circuit of device.
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| CN111882992A (en) * | 2020-08-14 | 2020-11-03 | 京东方科技集团股份有限公司 | Flexible display device |
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| CN109917685B (en) | 2021-01-26 |
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