A vibration damping device, a stationary air conditioner, and a control method

Abstract

The application provides a damping device, a parking air conditioner and a control method. The damping device comprises a vibration isolation frame, a connecting piece and a vibration absorber. The vibration isolation frame is used for being connected with an external mounting part. The vibration absorber is arranged on the vibration isolation frame and is connected with the external mounting part through the vibration isolation frame, so that the vibration isolation frame isolates the vibration between the external mounting part and the vibration absorber. The vibration absorber is also used for being connected with an external vibration piece, and the vibration absorber can generate a vibration absorption effect on the external vibration piece. The vibration isolation frame plays a role of vibration isolation. The damping device not only can isolate vibration but also can absorb vibration, and achieves a good damping and noise reduction effect on a liquid storage tank. Therefore, the vibration of the liquid storage tank is inhibited, the shaking of a compressor is reduced, and noise of the parking air conditioner is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vibration reduction, and particularly relates to a vibration reduction device, a parking air conditioner and a control method. BACKGROUND

[0002] The variable frequency compressor is a commonly used compressor in the parking air conditioner, and has a large mass. When the air conditioner is running and being transported, the compressor is prone to shaking. The parking air conditioner outdoor unit is installed on the truck cab shell, and therefore, the vibration and noise generated by the compressor during operation are more likely to be transmitted to the user. When the truck is running, the parking air conditioner is excited by the vibration generated by the cab shell under the excitation of the road surface. Whether the compressor is running or the truck is running, when the compressor vibration is too large, it will drive the vibration of the parking air conditioner pipeline, and in severe cases, it will cause the noise of the parking air conditioner, and even the pipeline will be damaged.

[0003] The liquid storage tank is an eccentric structure. When the compressor is vibrating, the acceleration and amplitude of the vibration of the liquid storage tank pipe opening are the largest. Therefore, suppressing the vibration of the liquid storage tank can effectively solve the problem of excessive vibration of the compressor. The existing compressor base is fixed by three rubber foot pads, and the liquid storage tank is connected to the compressor through a connecting part to improve the stability of the compressor. However, the connecting part can only have a single vibration absorption or vibration isolation effect, and the vibration reduction effect of the liquid storage tank is not good. In addition, this method cannot meet the working conditions and transportation environment of the parking air conditioner. Even if the existing technology can solve the problems of shaking and poor stability of the parking air conditioner compressor, the vibration reduction effect is not good. SUMMARY

[0004] The application provides a vibration reduction device, a parking air conditioner and a control method, which can solve the technical problem that the existing vibration reduction structure for the liquid storage tank can only have a single vibration isolation or vibration absorption effect, and the vibration reduction effect of the liquid storage tank is not good.

[0005] The application provides a vibration reduction device, which comprises:

[0006] The vibration isolation frame is used to be connected with the external mounting part.

[0007] The vibration absorber is arranged on the vibration isolation frame to be connected with the external mounting part through the vibration isolation frame, so that the vibration isolation frame isolates the vibration between the external mounting part and the vibration absorber. The vibration absorber is also used to be connected with the external vibration part, and the vibration absorber can have a vibration absorption effect on the external vibration part.

[0008] In some embodiments, the vibration absorber has a vibration absorption structure, and the vibration stiffness value and / or the damping value of the vibration absorption structure are adjustable.

[0009] In some embodiments, the vibration absorber comprises a housing, and the vibration absorbing structure comprises a mass, the mass being slidingly arranged in the housing; the mass separates the housing into a first chamber and a second chamber, and the pressure inside both the first chamber and the second chamber is adjustable to adjust the vibration stiffness value of the vibration absorber.

[0010] In some embodiments, the vibration absorber comprises a first air pump for adjusting the pressure inside the first chamber.

[0011] In some embodiments, the vibration absorber comprises a second air pump for adjusting the pressure inside the second chamber.

[0012] In some embodiments, the vibration absorber further comprises a damper connected to the vibration absorbing structure, and the vibration absorber adjusts the damping value of the damper to adjust the damping value of the vibration absorbing structure.

[0013] In some embodiments, when the vibration absorber comprises a housing and the vibration absorbing structure comprises a mass, the damper is arranged in the housing, and one end of the damper along the movement direction of the mass is connected to the inner wall of the housing, and the other end of the damper along the movement direction of the mass is connected to the mass.

[0014] In some embodiments, the first controller is configured to adjust the vibration stiffness value and / or the damping value of the vibration absorbing structure according to the operating frequency of the compressor.

[0015] In some embodiments, when the vibration absorber comprises a first air pump and a second air pump, the first controller is configured to control one of the first air pump and the second air pump to exhaust air and the other to inhale air according to the operating frequency of the compressor to adjust the vibration stiffness value of the vibration absorber.

[0016] In some embodiments, when the vibration absorber further comprises a damper connected to the vibration absorbing structure, the first controller is configured to adjust the damping of the damper according to the operating frequency of the compressor.

[0017] In some embodiments, the vibration isolation frame has a connecting portion and a vibration isolation structure, the vibration isolation frame is connected to an external mounting portion through the connecting portion, and is connected to the vibration absorber through the vibration isolation structure.

[0018] In some embodiments, the vibration isolation structure has an adjustable stiffness value.

[0019] In some embodiments, the vibration isolation structure comprises an elastic member, the vibration isolation structure connects the vibration absorber and the vibration isolation frame through the elastic member, and the stiffness value of the elastic member is adjustable to adjust the stiffness value of the vibration isolation structure.

[0020] In some embodiments, the vibration isolation frame has a first connecting rod and a second connecting rod, and the connecting portion is arranged on both the first connecting rod and the second connecting rod.

[0021] The first connecting rod and the second connecting rod are arranged in parallel and spaced apart, and the elastic member is arranged between the first connecting rod and the second connecting rod, one end of the elastic member being connected to the first connecting rod and the other end being connected to the second connecting rod;

[0022] The vibration absorber is provided with a connecting member, which is connected to the external vibration member and the elastic member;

[0023] The connecting member divides the elastic member into a first section connected to the first connecting rod and a second section connected to the second connecting rod; at least one of the first section and the second section can be elongated or contracted in the length direction to adjust the stiffness value of the elastic member.

[0024] In some embodiments, the vibration isolation structure further comprises a first electromagnetic coil and a second electromagnetic coil, the first electromagnetic coil being arranged on the first connecting rod, the second electromagnetic coil being arranged on the connecting member, and the first electromagnetic coil and the second electromagnetic coil being arranged opposite to each other, the first electromagnetic coil and the second electromagnetic coil being used to pass through different current values to generate different attractive forces or repulsive forces to elongate or contract the first section;

[0025] And / or, the vibration isolation structure further comprises a third electromagnetic coil and a fourth electromagnetic coil, the third electromagnetic coil being arranged on the second connecting rod, the fourth electromagnetic coil being arranged on the connecting member, and the third electromagnetic coil and the fourth electromagnetic coil being arranged opposite to each other, the third electromagnetic coil and the fourth electromagnetic coil being used to pass through different current values to generate different attractive forces or repulsive forces to elongate or contract the second section.

[0026] In some embodiments, it is characterized in that it further comprises a second controller, the second controller being used to adjust the stiffness value of the vibration isolation structure according to the operating frequency of the compressor.

[0027] In some embodiments, when the vibration isolation structure further comprises a first electromagnetic coil and a second electromagnetic coil, the second controller is used to adjust the current value in the first electromagnetic coil and the second electromagnetic coil according to the operating frequency of the compressor.

[0028] In some embodiments, when the vibration isolation structure further comprises a third electromagnetic coil and a fourth electromagnetic coil, the second controller is used to adjust the current value in the third electromagnetic coil and the fourth electromagnetic coil according to the operating frequency of the compressor.

[0029] A parking air conditioner, comprising a compressor, an air conditioner side plate, a liquid storage tank and the above-mentioned vibration reduction device, when the external mounting part is the air conditioner side plate and the external vibration member is the liquid storage tank, the liquid storage tank is arranged on the compressor, the vibration isolation frame is connected to the air conditioner side plate, and the connecting member is connected to the liquid storage tank.

[0030] A control method of a stationary air conditioner, the stationary air conditioner being the stationary air conditioner described above, comprising the following steps:

[0031] Obtaining the operating frequency of the compressor;

[0032] When the vibration absorber has a vibration absorbing structure, the vibration stiffness value and / or the damping value of the vibration absorbing structure are adjusted according to the operating frequency of the compressor;

[0033] When the vibration isolation structure includes an elastic member, the vibration isolation structure connects the vibration absorber and the vibration isolation frame through the elastic member; the stiffness value of the elastic member is adjustable, and when the stiffness value of the vibration isolation structure is adjusted, the stiffness value of the vibration isolation structure is adjusted according to the operating frequency of the compressor.

[0034] In some embodiments, when the vibration absorber includes a first air pump and a second air pump, one of the first air pump and the second air pump is used to control air suction and the other is used to control air suction according to the operating frequency of the compressor, so as to adjust the vibration stiffness value of the vibration absorber.

[0035] In some embodiments, when the vibration absorber further includes a damper connected to the vibration absorbing structure, the damping of the damper is adjusted according to the operating frequency of the compressor.

[0036] In some embodiments, when the vibration isolation structure further includes a first electromagnetic coil and a second electromagnetic coil, the current in the first electromagnetic coil and the second electromagnetic coil is adjusted according to the operating frequency of the compressor.

[0037] In some embodiments, when the vibration isolation structure further includes a third electromagnetic coil and a fourth electromagnetic coil, the current in the third electromagnetic coil and the fourth electromagnetic coil is adjusted according to the operating frequency of the compressor

[0038] The vibration reduction device, the stationary air conditioner and the control method provided by the application have the following beneficial effects:

[0039] When the truck is running or the compressor is working, the liquid storage tank will vibrate to a certain extent, and the vibration isolation frame plays a role in vibration isolation. The vibration reduction device not only has vibration isolation function but also has vibration absorption function, and can achieve good vibration reduction and noise reduction effect on the liquid storage tank, so as to reduce the shaking of the compressor by suppressing the vibration of the liquid storage tank, and avoid noise of the stationary air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0041] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the conditions that the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0042] Figure 1 Schematic view of the parking air conditioner of the present application;

[0043] Figure 2 Schematic view of the vibration reduction device of the present application;

[0044] Figure 3 Schematic view of the vibration isolation frame of the vibration reduction device of the present application;

[0045] Figure 4 Schematic view of the vibration absorber of the vibration reduction device of the present application;

[0046] Figure 5 Schematic view of the damper of the vibration reduction device of the present application.

[0047] In the figure: 1-vibration isolation frame; 11-connection part; 12-vibration isolation structure; 121-elastic member; 122-first connecting rod; 123-second connecting rod; 124-connection member; 131-first electromagnetic coil; 132-second electromagnetic coil; 133-third electromagnetic coil; 134-fourth electromagnetic coil; 2-vibration absorber; 201-housing; 202-mass block; 231-first chamber; 232-second chamber; 241-first air pump; 242-second air pump; 205-damper; 3-first controller; 4-compressor; 5-air conditioner side plate; 6-liquid storage tank. DETAILED DESCRIPTION

[0048] Clearly, the described embodiments are only some, but not all, embodiments of the present application. Various modifications and changes can be made thereto by those skilled in the art which freelyproceed from the concepts disclosed herein without departing from the spirit of the application. It is therefore intended that the disclosed application be considered as in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0049] It is also noted that the mterchangeable terms "comprise", "comprising", "include", "including", "contain", "containing", "have", "having", "carry", "carrying", "or", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, includes, contains, has, carries, or carries a list of elements can include additional elements not expressly listed or inherent to such process, method, article, or apparatus. These terms are also intended to cover an exclusive inclusion, such that a process, method, article, or apparatus that comprises, includes, contains, has, carries, or carries an element list excludes additional elements not expressly listed or inherent to such process, method, article, or apparatus.

[0050] It should be understood that the term "and / or" as used herein is merely an associative relationship between the associated objects, and means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0051] The relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the application, unless otherwise specified. At the same time, it should be understood that the size of each part shown in the drawings is not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0053] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0054] In addition, it should be noted that the use of "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it cannot be understood as a limitation on the scope of protection of the present application.

[0055] For reference Figure 2 As shown, according to the embodiment of the present application, a damping device is provided, which comprises a vibration isolation frame 1 and a vibration absorber 2, the vibration isolation frame 1 is used to connect with an external mounting part, the vibration absorber 2 is arranged on the vibration isolation frame 1, so as to connect with the external mounting part through the vibration isolation frame 1, and the vibration isolation frame 1 isolates the vibration between the external mounting part and the vibration absorber 2; the vibration absorber 2 is also used to connect with an external vibration member, and the vibration absorber 2 can produce a vibration absorption effect on the external vibration member.

[0056] In the embodiment, the external mounting part is the air conditioner side plate 5, the external vibration part is the liquid storage tank 6, the vibration absorber 2 is connected with the liquid storage tank 6, and the liquid storage tank 6 is fixed. When the truck runs or the compressor 4 works, the liquid storage tank 6 will vibrate to a certain extent. In this process, the vibration isolation frame 1 plays a role of vibration isolation, and the vibration absorber 2 plays a role of vibration absorption. The vibration reduction device can not only isolate vibration but also absorb vibration, and good vibration reduction and noise reduction effects are achieved on the liquid storage tank 6, so that the vibration of the liquid storage tank 6 is suppressed to reduce the shaking of the compressor 4 and avoid noise of the stationary air conditioner.

[0057] For reference Figure 4 As shown in the figure, the vibration absorber 2 has a vibration absorption structure, and the vibration stiffness value and / or the damping value of the vibration absorption structure are adjustable.

[0058] The vibration absorber 2 includes a shell 201, and the vibration absorption structure includes a mass block 202 which is slidingly arranged in the shell 201. The mass block 202 divides the shell 201 into a first chamber 231 and a second chamber 232, and the pressure inside both the first chamber 231 and the second chamber 232 is adjustable to adjust the vibration stiffness value of the vibration absorber 2. When the pressure of the first chamber 231 and the second chamber 232 changes, the mass block 202 moves to the chamber with greater pressure, so as to change the position of the mass block 202.

[0059] The vibration absorber 2 includes a first air pump 241 for adjusting the pressure inside the first chamber 231, and / or the vibration absorber 2 includes a second air pump 242 for adjusting the pressure inside the second chamber 232.

[0060] In the embodiment, the first air pump 241 and the second air pump 242 can realize air extraction or air suction. When the first air pump 241 extracts air in the first chamber 231, the second air pump 242 sucks air into the second chamber 232, at this time, the mass block 202 compresses the volume of the first chamber 231, and the pressure in the first chamber 231 is greater than that in the second chamber 232. When the second air pump 242 extracts air in the second chamber 232, the first air pump 241 sucks air into the first chamber 231, and the mass block 202 compresses the volume of the second chamber 232. Under the action of the first air pump 241 and the second air pump 242, the stiffness of the vibration of the mass block 202 can be flexibly adjusted, so that the vibration absorber 2 plays a role of vibration absorption.

[0061] For reference Figure 5As shown, as a specific embodiment, the two ends of the mass 202 are respectively provided with a first sealing gasket and a second sealing gasket between the inner wall of the shell 201, considering that the mass 202 is to be slid in the shell 201, and the pressure in the first chamber 231 and the second chamber 232 is different, the first sealing gasket and the second sealing gasket are arranged to ensure that the air between the first chamber 231 and the second chamber 232 cannot circulate during the sliding of the mass 202, so that the mass 202 can slide and change the stiffness of the mass 202.

[0062] The vibration absorber 2 further comprises a damper 205 connected with the vibration absorbing structure, and the vibration absorber 2 adjusts the damping value of the damper 205 to make the damping value of the vibration absorbing structure adjustable. The damper 205 is a magneto-rheological damper, and when the vibration impact received by the vibration absorber 2 is transmitted to the damper 205, the vibration is quickly attenuated by setting the damping of the damper 205, thereby realizing the vibration absorbing effect of the vibration reduction device.

[0063] When the vibration absorber 2 comprises the shell 201 and the vibration absorbing structure comprises the mass 202, the damper 205 is arranged in the shell 201, and one end of the damper 205 along the movement direction of the mass 202 is connected with the inner wall of the shell 201, and the other end along the movement direction of the mass 202 is connected with the mass 202.

[0064] Specifically, under the action of the first air pump 241 and the second air pump 242, the stiffness of the mass 202 in the vibration absorbing shell 201 is changed, and the stiffness of the mass 202 is changed. Under the action of inertia, the mass 202 drives the damper 205 to slide in the vibration absorbing shell 201 together, thereby consuming the vibration generated by the liquid storage tank 6, and the air mass 202 and the damper 205 are used in cooperation, which greatly improves the vibration absorbing capacity of the vibration reduction device.

[0065] Further comprising a first controller 3, the first controller 3 is used for adjusting the vibration stiffness value and / or the damping value of the vibration absorbing structure according to the operating frequency of the compressor 4.

[0066] When the vibration absorber 2 comprises the first air pump 241 and the second air pump 242, the first controller 3 is used for controlling one of the first air pump 241 and the second air pump 242 to exhaust and the other to inhale according to the operating frequency of the compressor 4, so as to adjust the vibration stiffness value of the vibration absorber 2. When the vibration absorber 2 further comprises the damper 205 connected with the vibration absorbing structure, the first controller 3 is used for adjusting the damping of the damper 205 according to the operating frequency of the compressor 4. The first controller 3 can adjust the pressure of the first chamber 231 and the second chamber 232 by controlling the working state of the first air pump 241 and the second air pump 242, and can also adjust the resistance of the damper 205, and can respond in time according to the operating frequency of the compressor 4.

[0067] With reference to Figure 3 As shown in the drawings, the vibration isolation frame 1 has a connecting portion 11 and a vibration isolation structure 12, the vibration isolation frame 1 is connected with an external mounting portion through the connecting portion 11, and is connected with the vibration absorber 2 through the vibration isolation structure 12; wherein the stiffness value of the vibration isolation structure 12 is adjustable, and the external mounting portion is a bolt.

[0068] The vibration isolation structure 12 includes an elastic member 121, the vibration isolation structure 12 connects the vibration absorber 2 and the vibration isolation frame 1 through the elastic member 121; the stiffness value of the elastic member 121 is adjustable, so as to adjust the stiffness value of the vibration isolation structure 12. In this embodiment, two elastic members 121 parallel to each other are provided, the elastic member 121 is a spring sheet, and the elastic member 121 can be deformed to elastically support the vibration isolation frame 1.

[0069] The vibration isolation frame 1 has a first connecting rod 122 and a second connecting rod 123, and the connecting portion 11 is arranged on both the first connecting rod 122 and the second connecting rod 123; the first connecting rod 122 and the second connecting rod 123 are arranged in parallel and are spaced apart, and the elastic member 121 is arranged between the first connecting rod 122 and the second connecting rod 123, one end of the elastic member 121 is connected with the first connecting rod 122, and the other end is connected with the second connecting rod 123.

[0070] The vibration absorber 2 is provided with a connecting member 124, so as to be connected with an external vibration member through the connecting member 124, and is connected with the elastic member 121 through the connecting member 124, the connecting member 124 is a transversely arranged connecting rod, and the connecting member 124 is connected with the liquid storage tank 6 through a fixing portion, in this embodiment, the fixing portion is a clamp, and in other embodiments, the fixing portion can also be a bolt. The cross section of the fixing portion is semicircular, and the opening shape of the fixing portion is matched with the pipe opening of the liquid storage tank 6, so as to clamp the liquid storage tank 6. When the liquid storage tank 6 shakes, the fixing portion provides a certain supporting force and transmits the force to the connecting member 124.

[0071] The connecting member 124 divides the elastic member 121 into a first section connected with the first connecting rod 122 and a second section connected with the second connecting rod 123; at least one of the first section and the second section can be elongated or contracted along the length direction, so as to adjust the stiffness value of the elastic member 121. By arranging the vibration isolation frame 1 as this frame structure, in combination with the material of the elastic member 121, not only the distance between the first connecting rod 122 and the second connecting rod 123 can be adjusted, but also the stiffness of the vibration isolation frame 1 can be adjusted, the structure is stable and meets the vibration isolation requirement of the shock absorbing device.

[0072] The vibration isolation structure 12 further comprises a first electromagnetic coil 131 and a second electromagnetic coil 132, the first electromagnetic coil 131 is arranged on the first connecting rod 122, the second electromagnetic coil 132 is arranged on the connecting piece 124, and the first electromagnetic coil 131 and the second electromagnetic coil 132 are oppositely arranged, and the first electromagnetic coil 131 and the second electromagnetic coil 132 are used to pass through different current values, so that the first electromagnetic coil 131 and the second electromagnetic coil 132 generate different attractive forces or repulsive forces to make the first section stretch or contract.

[0073] The vibration isolation structure 12 further comprises a third electromagnetic coil 133 and a fourth electromagnetic coil 134, the third electromagnetic coil 133 is arranged on the second connecting rod 123, the fourth electromagnetic coil 134 is arranged on the connecting piece 124, and the third electromagnetic coil 133 and the fourth electromagnetic coil 134 are oppositely arranged, and the third electromagnetic coil 133 and the fourth electromagnetic coil 134 are used to pass through different current values, so that the third electromagnetic coil 133 and the fourth electromagnetic coil 134 generate different attractive forces or repulsive forces to make the second section stretch or contract.

[0074] Specifically, when the rigidity of the vibration isolation frame 1 needs to be enhanced, the first electromagnetic coil 131, the second electromagnetic coil 132, the third electromagnetic coil 133 and the fourth electromagnetic coil 134 are all electrified, the first electromagnetic coil 131 and the third electromagnetic coil 133 and the second electromagnetic coil 132 and the fourth electromagnetic coil 134 respectively generate mutual forces, change the rigidity of the elastic member 121, and the rigidity is adjusted by the current, and then the rigidity of the whole vibration isolation frame 1 is changed. The existing vibration isolation frame 1 only plays a supporting and buffering role, while the rigidity of the vibration isolation frame 1 of the present application can be flexibly adjusted to meet different degrees of vibration isolation requirements, and the rigidity is automatically adjusted according to the different operating frequencies of the compressor 4 and different working conditions of the stationary air conditioner, realizing omnidirectional vibration isolation effect and larger application range.

[0075] Further comprising a second controller, the second controller is used to adjust the rigidity value of the vibration isolation structure 12 according to the operating frequency of the compressor 4.

[0076] When the vibration isolation structure 12 further comprises the first electromagnetic coil 131 and the second electromagnetic coil 132, the second controller is used to adjust the current size in the first electromagnetic coil 131 and the second electromagnetic coil 132 according to the operating frequency of the compressor 4. When the vibration isolation structure 12 further comprises the third electromagnetic coil 133 and the fourth electromagnetic coil 134, the second controller is used to adjust the current size in the third electromagnetic coil 133 and the fourth electromagnetic coil 134 according to the operating frequency of the compressor 4. In the embodiment, the first controller 3 and the second controller can be controlled by the same controller.

[0077] For reference Figure 1As shown, a parking air conditioner, comprising a compressor 4, an air conditioner side plate 5, a liquid storage tank 6 and the above-mentioned damping device, when the external mounting part is the air conditioner side plate 5 and the external vibration part is the liquid storage tank 6, the liquid storage tank 6 is eccentrically arranged on the compressor 4, the vibration isolation frame 1 is connected with the air conditioner side plate 5, and the connecting piece 124 is connected with the liquid storage tank 6.

[0078] A control method of a parking air conditioner, the parking air conditioner being the above-mentioned parking air conditioner, characterized in that comprising the following steps:

[0079] Obtaining the operating frequency of the compressor 4;

[0080] When the vibration absorber 2 has a vibration absorbing structure, the vibration stiffness value and / or the damping value of the vibration absorbing structure are adjustable, and the vibration stiffness value and / or the damping value of the vibration absorbing structure are adjusted according to the operating frequency of the compressor 4;

[0081] Specifically, when the vibration absorber 2 comprises a first air pump 241 and a second air pump 242, one of the first air pump 241 and the second air pump 242 is controlled to suck air and the other to inhale air according to the operating frequency of the compressor 4, so as to adjust the vibration stiffness value of the vibration absorber 2.

[0082] Specifically, when the vibration absorber 2 further comprises a damper 205 connected with the vibration absorbing structure, the damping of the damper 205 is adjusted according to the operating frequency of the compressor 4.

[0083] When the vibration isolation structure 12 comprises an elastic piece 121, the vibration isolation structure 12 connects the vibration absorber 2 and the vibration isolation frame 1 through the elastic piece 121, and the stiffness value of the elastic piece 121 is adjustable to adjust the stiffness value of the vibration isolation structure 12, the stiffness value of the vibration isolation structure 12 is adjusted according to the operating frequency of the compressor 4.

[0084] Specifically, when the vibration isolation structure 12 further comprises a first electromagnetic coil 131 and a second electromagnetic coil 132, the current in the first electromagnetic coil 131 and the second electromagnetic coil 132 is adjusted according to the operating frequency of the compressor 4.

[0085] Specifically, when the vibration isolation structure 12 further comprises a third electromagnetic coil 133 and a fourth electromagnetic coil 134, the current in the third electromagnetic coil 133 and the fourth electromagnetic coil 134 is adjusted according to the operating frequency of the compressor 4.

[0086] Before the control method of the parking air conditioner is executed, a method for obtaining the electric signal data set controlled by the controller of the parking air conditioner under two working conditions comprises the following steps:

[0087] S1: judging the frequency received by the compressor 4 according to the operating condition of the parking air conditioner;

[0088] S2: When the operating condition of the stationary air conditioner is truck operation and the compressor 4 stops working, the compressor 4 is subjected to multi-frequency excitation, the optimal stiffness of the mass block 202 and the optimal damping of the damper 205 are reached, the random vibration test of the stationary air conditioner is performed, the minimum acceleration response value of the liquid storage tank 6 is taken as the target, the stiffness of the elastic element 121 is adjusted, the current value corresponding to the optimal stiffness is obtained, then the current values corresponding to the stiffness of the mass block 202, the damping of the damper 205 and the stiffness of the elastic element 121 are obtained, and then the electric signal data set controlled by the controller under the working condition is obtained.

[0089] Specifically, after determining that the stationary air conditioner needs to be damped, the mass of the compressor 4 is determined as M, the mass of the mass block 202 is determined as m, according to the optimal design principle of the dynamic vibration absorber 2 of the main vibration system with damping, the stiffness value reached by the air spring is wherein K is the structural stiffness of the compressor 4, which can be measured by experiment, is the mass ratio. The optimal damping value reached by the damper 205 is The random vibration test of the stationary air conditioner is performed on the road transportation PSD, the minimum vibration acceleration of the liquid storage tank 6 is taken as the optimization target, and the stiffness value corresponding to the elastic element 121 is obtained. In summary, the signal data set corresponding to the mass block 202, the damper 205, the first to fourth electromagnetic coils 131-134 controlled by the controller under the working condition is obtained.

[0090] S3: When the operating condition of the stationary air conditioner is that the compressor 4 works, the compressor 4 is subjected to a single variable frequency, the optimal stiffness of the mass block 202 and the optimal damping of the damper 205 are reached, the frequency vibration test of the stationary air conditioner is performed, the minimum acceleration response value of the liquid storage tank 6 is taken as the target, the stiffness of the elastic element 121 is adjusted, the current value corresponding to the optimal stiffness is obtained, then the current values corresponding to the stiffness of the mass block 202, the damping of the damper 205 and the stiffness of the elastic element 121 are obtained, and then the electric signal data set controlled by the controller under the working condition is obtained.

[0091] Specifically, when the stationary air conditioner works (at this time the truck stops), the excitation of the compressor 4 is a single frequency excitation, the excitation frequency is the operating frequency of the compressor 4, and the minimum value of the variable stiffness of the air spring in the vibration absorber 2 is k min , and the minimum value of the air spring natural frequency is The maximum value of the variable stiffness of the air spring in the vibration absorber 2 is k max , and the maximum value of the air spring natural frequency is The controller controls the stiffness k of the air spring according to the following principles:

[0092]

[0093] Based on the parked air conditioner compressor 4 frequency modulation vibration test, the minimum vibration acceleration value of the liquid storage tank 6 pipeline is the optimization target, and the stiffness of the damper 205 and the elastic member 121 is the optimization target. The corresponding optimal damping value and stiffness value at each frequency are obtained. The above can obtain the corresponding current data set of the controller under this working condition.

[0094] Those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0095] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A vibration damping device characterized by comprising: The application relates to a vibration isolation device. The vibration isolation device comprises a vibration isolation frame (1) connected with an external mounting part; a vibration absorber (2) arranged on the vibration isolation frame (1) and connected with the external mounting part through the vibration isolation frame (1) to isolate the vibration between the external mounting part and the vibration absorber (2); the vibration absorber (2) is also connected with an external vibration part and can absorb the vibration of the external vibration part. The vibration isolation frame (1) has a connecting part (11) and a vibration isolation structure (12); the vibration isolation frame (1) is connected with the external mounting part through the connecting part (11) and connected with the vibration absorber (2) through the vibration isolation structure (12); the rigidity value of the vibration isolation structure (12) is adjustable; the connecting part (11) is a threaded rod. The vibration isolation structure (12) comprises an elastic member (121); the vibration isolation structure (12) connects the vibration absorber (2) and the vibration isolation frame (1) through the elastic member (121); the rigidity value of the elastic member (121) is adjustable to adjust the rigidity value of the vibration isolation structure (12). The vibration isolation frame (1) has a first connecting rod (122) and a second connecting rod (123); the connecting part (11) is arranged on both the first connecting rod (122) and the second connecting rod (123); the first connecting rod (122) and the second connecting rod (123) are arranged in parallel and spaced apart; the elastic member (121) is arranged between the first connecting rod (122) and the second connecting rod (123); one end of the elastic member (121) is connected with the first connecting rod (122) and the other end is connected with the second connecting rod (123). The vibration absorber (2) is provided with a connecting member (124) to connect with the external vibration part and connect with the elastic member (121); the connecting member (124) divides the elastic member (121) into a first section connected with the first connecting rod (122) and a second section connected with the second connecting rod (123); at least one of the first section and the second section can be elongated or contracted in the length direction to adjust the rigidity value of the elastic member (121). The vibration absorber (2) has a vibration absorption structure with adjustable vibration rigidity value and / or damping value.

2. The vibration damping device according to claim 1, characterized by The vibration absorber (2) comprises a shell (201) and a mass block (202) arranged in the shell (201) in a sliding mode; the mass block (202) divides the shell (201) into a first chamber (231) and a second chamber (232); the pressure in the first chamber (231) and the second chamber (232) can be adjusted to adjust the vibration rigidity value of the vibration absorber (2).

3. The vibration damping device according to claim 2, characterized by The vibration absorber (2) comprises a first air pump (241) to adjust the pressure in the first chamber (231).

4. The vibration damping device according to claim 3, characterized by ​ And / or, the vibration absorber (2) comprises a second air pump (242) for adjusting the pressure inside the second chamber (232).

5. The vibration damping device according to claim 4, characterized by The vibration absorber (2) further comprises a damper (205) connected to the vibration absorbing structure, and the vibration absorber (2) adjusts the damping value of the damper (205) to adjust the damping value of the vibration absorbing structure.

6. The vibration damping device according to claim 5, characterized by When the vibration absorber (2) comprises a housing (201) and the vibration absorbing structure comprises a mass block (202), the damper (205) is arranged in the housing (201), one end of the damper (205) along the movement direction of the mass block (202) is connected to the inner wall of the housing (201), and the other end along the movement direction of the mass block (202) is connected to the mass block (202).

7. The vibration damping device according to claim 5, characterized by Further comprising a first controller (3) for adjusting the vibration stiffness value and / or damping value of the vibration absorbing structure according to the operating frequency of the compressor (4).

8. The vibration damping device according to claim 7, characterized by When the vibration absorber (2) comprises a first air pump (241) and a second air pump (242), the first controller (3) controls one of the first air pump (241) and the second air pump (242) to exhaust and the other to inhale according to the operating frequency of the compressor (4) to adjust the vibration stiffness value of the vibration absorber (2).

9. The vibration damping device according to claim 7, characterized by When the vibration absorber (2) further comprises a damper (205) connected to the vibration absorbing structure, the first controller (3) adjusts the damping of the damper (205) according to the operating frequency of the compressor (4).

10. The vibration damping device according to claim 1, characterized by The vibration isolation structure (12) further comprises a first electromagnetic coil (131) and a second electromagnetic coil (132), the first electromagnetic coil (131) is arranged on the first connecting rod (122), the second electromagnetic coil (132) is arranged on the connecting piece (124), and the first electromagnetic coil (131) and the second electromagnetic coil (132) are oppositely arranged, and the first electromagnetic coil (131) and the second electromagnetic coil (132) are used to pass through different current values to generate different attractive forces or repulsive forces to make the first segment elongate or contract. And / or, the vibration isolation structure (12) further comprises a third electromagnetic coil (133) and a fourth electromagnetic coil (134), the third electromagnetic coil (133) is arranged on the second connecting rod (123), the fourth electromagnetic coil (134) is arranged on the connecting piece (124), and the third electromagnetic coil (133) and the fourth electromagnetic coil (134) are oppositely arranged, and the third electromagnetic coil (133) and the fourth electromagnetic coil (134) are used to pass through different current values to generate different attractive forces or repulsive forces to make the second segment elongate or contract.

11. The vibration damping device according to any one of claims 1 to 10, characterized by Further comprising a second controller for adjusting the stiffness value of the vibration isolation structure (12) according to the operating frequency of the compressor (4).

12. The vibration damping device according to claim 11, characterized by When the vibration isolation structure (12) further comprises a first electromagnetic coil (131) and a second electromagnetic coil (132), the second controller is configured to adjust the current magnitude in both the first electromagnetic coil (131) and the second electromagnetic coil (132) according to the operating frequency of the compressor (4).

13. The vibration damping device of claim 11, wherein When the vibration isolation structure (12) further comprises a third electromagnetic coil (133) and a fourth electromagnetic coil (134), the second controller is configured to adjust the current magnitude in both the third electromagnetic coil (133) and the fourth electromagnetic coil (134) according to the operating frequency of the compressor (4).

14. A stationary air conditioner characterized by comprising: The vibration isolation device according to any one of claims 1 to 13, wherein the external mounting portion is an air conditioner side panel (5), the external vibration member is a liquid storage tank (6), the liquid storage tank (6) is arranged on the compressor (4), the vibration isolation frame (1) is connected to the air conditioner side panel (5), and the vibration absorber (2) is connected to the liquid storage tank (6).

15. A control method of a stationary air conditioner, the stationary air conditioner being the stationary air conditioner according to any one of claims 7 to 9, 11 to 13, characterized by, The method comprises the following steps: obtaining the operating frequency of the compressor (4); When the vibration absorber (2) has a vibration absorbing structure, the vibration stiffness value and / or the damping value of the vibration absorbing structure are adjustable, and the vibration stiffness value and / or the damping value of the vibration absorbing structure are adjusted according to the operating frequency of the compressor (4); When the vibration isolation structure (12) comprises an elastic member (121), the vibration isolation structure (12) connects the vibration absorber (2) and the vibration isolation frame (1) through the elastic member (121), the stiffness value of the elastic member (121) is adjustable, the stiffness value of the vibration isolation structure (12) is adjusted, and the stiffness value of the vibration isolation structure (12) is adjusted according to the operating frequency of the compressor (4).

16. The control method of a stationary air conditioner according to claim 15, wherein When the vibration absorber (2) comprises a first air pump (241) and a second air pump (242), one of the first air pump (241) and the second air pump (242) is controlled to suck air and the other to inhale air according to the operating frequency of the compressor (4), so as to adjust the vibration stiffness value of the vibration absorber (2).

17. The control method of a stationary air conditioner according to claim 15, characterized by, When the vibration absorber (2) further comprises a damper (205) connected to the vibration absorbing structure, the damping of the damper (205) is adjusted according to the operating frequency of the compressor (4).

18. The control method of a stationary air conditioner according to claim 15, characterized by, When the vibration isolation structure (12) further comprises a first electromagnetic coil (131) and a second electromagnetic coil (132), the current magnitude in both the first electromagnetic coil (131) and the second electromagnetic coil (132) is adjusted according to the operating frequency of the compressor (4).

19. The control method of a stationary air conditioner according to claim 15, characterized by, When the vibration isolation structure (12) further comprises a third electromagnetic coil (133) and a fourth electromagnetic coil (134), the current magnitude in both the third electromagnetic coil (133) and the fourth electromagnetic coil (134) is adjusted according to the operating frequency of the compressor (4).

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