Compressor vibration reduction fixing device, parking air conditioner and control method

Abstract

The application provides a compressor damping fixing device, a parking air conditioner and a control method, wherein the compressor damping fixing device comprises a side wall damping fixing assembly, which comprises a rubber pad assembly, a heating element, and a first connecting structure and a second connecting structure.The rubber pad assembly comprises a rubber pad, and the heating current of the heating element can be changed according to the real-time running frequency of the compressor to adjust the rigidity of the rubber pad assembly.The first connecting structure is connected between the rubber pad assembly and the outer side wall of the compressor.The second connecting structure is connected between the rubber pad assembly and the outer casing of the air conditioner.The rubber pad assembly is adopted, and the rubber pad in the rubber pad assembly can be heated by the heating element, so that the rigidity of the rubber pad assembly is adjusted and matched with the real-time running frequency of the compressor, so that the damping support effect of the compressor damping fixing device is better, and the damage caused by excessive stress at the suction and exhaust port connection position of the compressor is effectively prevented.

Description

TECHNICAL FIELD

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

[0002] The variable frequency compressor is a commonly used compressor in the stationary air conditioner, and has a large mass. When the air conditioner is running and being transported, the compressor is prone to shaking. The outer machine of the stationary air conditioner is installed on the outside of the cab shell, and 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 stationary air conditioner is excited by the vibration generated by the cab shell under the excitation of the road surface. When the vibration amplitude of the compressor is large, abnormal noise is easily generated, and the service life of the suction and exhaust pipelines is greatly affected. In severe cases, it can cause damage to the pipelines and chassis.

[0003] The existing compressor base is usually fixed by three rubber foot pads to improve the stability of the compressor. However, this method cannot meet the working conditions and transportation environment of the stationary air conditioner. That is, the existing technology cannot effectively solve the problems of poor stability and shaking of the compressor in the stationary air conditioner.

[0004] Patent No. CN 213089958 U discloses a port air conditioner compressor fixing device, which belongs to the field of special air conditioners. The fixing device includes a clamping plate, one side of the clamping plate is fixedly installed on the side wall of the outer machine, the other side of the clamping plate is provided with a clamping buckle, the shape of the clamping buckle is matched with the shape of the outer wall of the compressor, the clamping buckle is clamped on the outer wall of the compressor, a buffer pad is arranged between the clamping buckle and the outer wall of the compressor, and the bottom of the compressor is fixedly installed on the bottom plate of the outer machine. The fixing device realizes multi-point fixing of the compressor and reduces the shaking of the compressor. However, the fixing device occupies a large space, which affects the layout of the suction and exhaust pipes, and the structure is too simple to effectively reduce the vibration of the compressor at a fixed frequency.

[0005] Patent No. CN 218915162 U discloses an elastic band, a compressor fixing device and an air conditioner. After the compressor of the air conditioner is installed in the outer machine shell, the main body is in a stretched state, the main body can surround the compressor, and the fixing head can be fixedly connected to the vertical plate of the outer machine shell, so as to limit the compressor between the main body and the vertical plate. However, the elastic band can only provide a fixed elastic model, and can only reduce the vibration in the direction away from the vertical plate, and cannot effectively reduce the vibration of the variable frequency compressor at all frequency ranges. SUMMARY

[0006] Therefore, the present application provides a compressor vibration reduction fixing device, a stationary air conditioner and a control method, which can solve the technical problem that the fixing device of the compressor in the prior art cannot change the stiffness with the operating frequency of the compressor, and the vibration reduction effect on the compressor is limited.

[0007] To solve the above problems, the present application provides a compressor damping fixing device, comprising a bottom damping fixing assembly supported on the bottom wall of the compressor, and a side wall damping fixing assembly, the side wall damping fixing assembly comprising:

[0008] a rubber pad assembly comprising a rubber pad and a heating element for heating the rubber pad, the energization current of the heating element being capable of being changed according to the real-time running frequency of the compressor to adjust the rigidity of the rubber pad assembly;

[0009] a first connecting structure, one end of the first connecting structure being connected with the first end of the rubber pad assembly, and the other end of the first connecting structure being connected with the outer side wall of the compressor;

[0010] a second connecting structure, one end of the second connecting structure being connected with the second end of the rubber pad assembly, and the other end of the second connecting structure being connected with the outer casing of the air conditioner.

[0011] In some embodiments,

[0012] The rubber pad has a plurality of rubber pads, and the heating element is arranged between adjacent two rubber pads.

[0013] In some embodiments,

[0014] Each of the rubber pads has a receiving cavity, and a temperature sensor is arranged in each receiving cavity, the temperature sensor being used for detecting the real-time temperature of the opposite rubber pad.

[0015] In some embodiments,

[0016] The first connecting structure comprises a first support rod and a second support rod, the first end of the first support rod has a cylinder, the inner cavity of the cylinder is filled with a magneto-rheological fluid, the first end of the second support rod is assembled with an energized coil, the first end of the second support rod is slidingly connected in the cylinder, and the energization current of the energized coil is capable of being changed according to the real-time running frequency of the compressor to adjust the damping of the first connecting structure.

[0017] In some embodiments,

[0018] The second end of the first support rod is connected with an arc plate, the arc shape of the arc plate matches the arc shape of the outer side wall of the compressor, the arc plate is fixedly connected with the outer side wall, and the second end of the second support rod is connected with the first end of the rubber pad assembly.

[0019] In some embodiments,

[0020] The outer peripheral wall of the cylinder body is sleeved with a spiral spring, one end of the spiral spring abutting against the end face of the first end of the rubber pad assembly.

[0021] In some embodiments,

[0022] The second connecting structure comprises a third supporting rod, one end of the third supporting rod being detachably connected with the outer casing body through a clamping connecting piece.

[0023] In some embodiments,

[0024] The third supporting rod comprises a threaded rod, the clamping connecting piece is a nut, and the nut is threadedly connected with the threaded rod; and / or, the third supporting rod further comprises a connecting plate at one end of the threaded rod, and the connecting plate is fixedly connected with the end face of the second end of the rubber pad assembly.

[0025] The application further provides a parking air conditioner comprising the compressor vibration reduction fixing device.

[0026] The application further provides a control method of the parking air conditioner, comprising the following steps:

[0027] obtaining the operating state of the compressor, the operating state comprising a first state, when the compressor is in the first state, the compressor is in a vehicle parking and compressor running state;

[0028] when the compressor is in the first state, obtaining the real-time operating frequency of the compressor, and according to the real-time operating frequency, controlling and adjusting the energization current of the heating element to a first preset current value to adjust the rigidity of the rubber pad assembly to a preset rigidity target value corresponding to the real-time operating frequency, and according to the real-time operating frequency, controlling and adjusting the energization current of the energization coil to a second preset current value to adjust the damping of the first connecting structure to a preset damping target value corresponding to the real-time operating frequency.

[0029] In some embodiments,

[0030] the operating state comprises a second state, when the compressor is in the second state, the compressor is in a vehicle driving and compressor shutdown state;

[0031] when the compressor is in the second state, controlling and adjusting the energization current of the heating element to a third preset current value, and controlling and adjusting the energization current of the energization coil to a fourth preset current value; or,

[0032] the operating state comprises a third state, when the compressor is in the third state, the compressor is in a vehicle driving and compressor packaging transportation state;

[0033] When the compressor is in the third state, the energization current of the heating member is adjusted to a fifth preset current value, and the energization current of the energization coil is adjusted to a sixth preset current value.

[0034] In some embodiments, the first preset current value and the second preset current value are obtained in the following manner:

[0035] The compressor is fixed in the stationary air conditioner outdoor unit by using the compressor vibration reduction fixing device.

[0036] The compressor is operated to test the vibration of the outdoor unit.

[0037] The average vibration response of the compressor suction and exhaust port connecting pipe corresponding to different compressor operating frequencies is obtained.

[0038] The energization current of the heating member and the energization current of the energization coil are adjusted at each compressor operating frequency, and the average vibration response of the compressor suction and exhaust port connecting pipe at the minimum value is recorded. The corresponding energization current of the heating member at the minimum value of the average vibration response of the compressor suction and exhaust port connecting pipe is the first preset current value, and the corresponding energization current of the energization coil is the second preset current value; or,

[0039] The third preset current value and the fourth preset current value are obtained in the following manner:

[0040] A simulation model is established for the compressor vibration reduction fixing device.

[0041] Random vibration analysis is performed on the established simulation model based on the vehicle operating road PSD load spectrum.

[0042] The average vibration response of the compressor suction and exhaust port connecting pipe is minimized, the energization current of the heating member and the energization current of the energization coil are adjusted, and the average vibration response of the compressor suction and exhaust port connecting pipe at the minimum value is recorded. The corresponding energization current of the heating member at the minimum value of the average vibration response of the compressor suction and exhaust port connecting pipe is the third preset current value, and the corresponding energization current of the energization coil is the fourth preset current value; or,

[0043] The fifth preset current value and the sixth preset current value are obtained in the following manner:

[0044] A simulation model is established for the compressor vibration reduction fixing device.

[0045] Random vibration analysis is performed on the established simulation model based on the national standard transportation PSD load spectrum.

[0046] With the minimum value of the vibration response of the suction and exhaust port connecting pipe of the compressor as the target, the energization current of the heating element and the energization current of the energization coil are adjusted, and the energization current of the heating element corresponding to the minimum value of the vibration response of the suction and exhaust port connecting pipe of the compressor is recorded as the fifth preset current value, and the energization current of the energization coil corresponding to the minimum value of the vibration response of the suction and exhaust port connecting pipe of the compressor is recorded as the sixth preset current value.

[0047] The compressor damping fixing device, the parking air conditioner and the control method have the following beneficial effects:

[0048] The bottom damping fixing assembly and the side wall damping fixing assembly together realize damping support fixing of the compressor, the side wall damping fixing assembly adopts the rubber pad assembly, and the rubber pad in the rubber pad assembly can be heated by the heating element to realize corresponding adjustment and matching of the rigidity and the real-time operation frequency of the compressor, so that the damping support effect of the compressor damping fixing device is more optimal, and damage caused by excessive stress at the suction and exhaust port connecting pipe position of the compressor is effectively prevented.

[0049] The magnetic force interaction between the energization coil and the magnetorheological fluid changes the damping of the magnetorheological fluid and adjusts the overall damping of the first connecting structure, so that the damping of the first connecting structure can be adjusted to a more appropriate damping according to the different operation frequencies of the compressor, and the transmission of the vibration of the compressor to the outer shell is reduced.

[0050] The rigidity of the rubber pad assembly and the damping of the first connecting structure can be adjusted according to the operation state of the compressor (i.e. the real-time operation frequency of the compressor), so that the compressor can be adjusted to the corresponding preset current value according to the corresponding real-time operation frequency when it is in the first state, and the damping effect is at a relatively optimal level, and the vibration response average at the suction and exhaust port connecting pipe of the compressor is at a relatively low level, effectively preventing damage to the connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creating any creative labor.

[0052] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0053] Figure 1 A perspective structural schematic view of the compressor damping fixing device of the embodiment of the present application assembled in the stationary air conditioner (part of components are omitted);

[0054] Figure 2 A perspective structural schematic view of the side wall damping fixing assembly in the embodiment of the present application from one perspective; Figure 1

[0055] Figure 3 A perspective structural schematic view of the side wall damping fixing assembly in the embodiment of the present application from another perspective; Figure 1

[0056] Figure 4 A sectional view of the side wall damping fixing assembly in the embodiment of the present application; Figure 1

[0057] Figure 5 A flow chart of the acquisition of the preset current value of each current in the embodiment of the present application;

[0058] Figure 6 A control logic flow chart of the stationary air conditioner of the embodiment of the present application.

[0059] The reference signs are as follows:

[0060] 11, rubber pad; 111, temperature sensor; 12, heating element;

[0061] 21, first support rod; 211, cylinder; 212, arc plate; 213, helical spring;

[0062] 22, second support rod; 221, energizing coil; 222, connecting end plate;

[0063] 31, third support rod; 32, nut;

[0064] 4, controller;

[0065] 100, compressor; 101, outer machine shell;

[0066] 200, bottom damping fixing assembly; 300, side wall damping fixing assembly. DETAILED DESCRIPTION

[0067] ​​​Clearly, only the embodiments described are merely a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one example embodiment is merely illustrative in nature and is in no way limiting to the application and its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of the present application.

[0068] It should be noted that the terms used herein are merely for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the terms "comprise" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0069] It should be understood that the term "and / or" used herein merely describes an association relationship of associated objects, and means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0070] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting to the scope of the present application. It should be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the description of the application. In all examples shown and discussed herein, any specific value should be interpreted as merely illustrative, and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0071] In the description of the present application, it needs to be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is 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 device or element referred to 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 relative to the contour of each component itself.

[0072] 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 position 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.

[0073] In addition, it needs to be pointed out that the use of "first", "second" and the like to define parts only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0074] For reference Figure 1 and Figure 6As shown, according to the embodiment of the present application, a compressor damping fixing device is provided, which comprises a bottom damping fixing assembly 200 supported on the bottom wall of the compressor 100, and further comprises a side wall damping fixing assembly 300, which comprises: a rubber pad assembly (not marked in the figure) comprising a rubber pad 11 and a heating member 12 for heating the rubber pad 11, the energization current size of the heating member 12 can be changed according to the real-time running frequency of the compressor 100 to adjust the rigidity of the rubber pad assembly; a first connecting structure (not marked in the figure), one end of the first connecting structure is connected with the first end of the rubber pad assembly, and the other end of the first connecting structure is connected with the outer side wall of the compressor 100; a second connecting structure (not marked in the figure), one end of the second connecting structure is connected with the second end of the rubber pad assembly, and the other end of the second connecting structure is connected with the outer casing 101 (also referred to as the outer machine stand wall) of the air conditioner, that is, the compressor 100 is connected with the outer casing 101 in sequence via the first connecting structure, the rubber pad assembly and the second connecting structure. The aforementioned bottom damping fixing assembly 200 can be implemented by using multiple groups of rubber damping pad assemblies of the same type, which can not only realize the fixing and supporting of the compressor 100 above, but also reduce the vibration transmission between the compressor 100 and the installation carrier. The specific type of the aforementioned heating member 12 can be various, and in one specific embodiment, it is an electric heating component, such as an electrically heated component, etc.

[0075] In the technical solution, the bottom damping fixing assembly 200 and the side wall damping fixing assembly 300 together realize the damping and supporting fixing of the compressor 100, the side wall damping fixing assembly 300 adopts the rubber pad assembly, and the rubber pad 11 in the rubber pad assembly can be heated by the heating member 12 to realize the corresponding adjustment matching of its rigidity and the real-time running frequency of the compressor 100, so that the damping and supporting effect of the compressor damping fixing device of the present application is more optimal, and the damage phenomenon caused by excessive stress at the suction and exhaust port connection position of the compressor 100 is effectively prevented.

[0076] In some embodiments, the rubber pad 11 has multiple, and the heating member 12 is arranged between adjacent two rubber pads 11, which will be described in detail below with reference to Figure 4 As shown, three rubber pads 11 are used in the figure, and one heating member 12 is clamped between every two rubber pads 11. In this way, by arranging multiple rubber pads 11, the thickness (height) of each rubber pad 11 can be reduced, which is beneficial to the uniform heating and temperature adjustment of the rubber pad 11 by the heating member 12, and further ensures that the rigidity adjustment of the entire rubber pad assembly is more accurate and controllable.

[0077] In a preferred embodiment, the compressor damping fixing device is separately configured with a power supply, the heating element 12 is preferably an electric heating element, and the power supply supplies power to the power-consuming components in the damping fixing device, including the heating element 12, so that the heating temperature can be adjusted by controlling the size of the current according to the real-time operating frequency of the compressor, and then adjusting the stiffness of each rubber pad 11.

[0078] Further referring to Figure 4 As shown, each of the rubber pads 11 has a receiving cavity (not labeled in the figure), and each of the receiving cavities is provided with a temperature sensor 111 for detecting the real-time temperature of the adjacent rubber pad 11. It should be noted that the compressor damping fixing device of the present application is also provided with a corresponding controller 4, and each of the temperature sensors 111 detects the real-time temperature of the adjacent rubber pad 11, and the corresponding temperature detection value is obtained by the controller 4 and weightedly averaged as a temperature adjustment reference, so that the temperature adjustment of the rubber pad assembly is more accurate, that is, the stiffness adjustment is more accurate.

[0079] In a preferred embodiment, the first connecting structure includes a first support rod 21 and a second support rod 22, the first end of the first support rod 21 has a cylinder 211, the inner cavity of the cylinder 211 is filled with magnetorheological fluid, the first end of the second support rod 22 is assembled with an energized coil 221, the energized coil 221 is also powered by the aforementioned power supply, the first end of the second support rod 22 is slidingly connected in the cylinder 211, and the energized current size of the energized coil 221 can be changed according to the real-time operating frequency of the compressor 100 to adjust the damping of the first connecting structure.

[0080] In this technical solution, the damping of the first connecting structure is adjusted by changing the damping of the magnetorheological fluid through the magnetic interaction between the energized coil 221 and the magnetorheological fluid, so that the damping of the first connecting structure can be adjusted to a more appropriate damping according to the different operating frequencies of the compressor 100, reducing the transmission of the vibration of the compressor 100 to the outer casing 101.

[0081] Referring to Figure 2 and Figure 3As shown, in some embodiments, the second end of the first support rod 21 is connected with an arc plate 212, the arc shape of the arc plate 212 matches the arc shape of the outer side wall of the compressor 100, that is, the arc curvature radius of the matching surface between the arc plate 212 and the outer side wall of the compressor 100 is the same, so as to ensure the complete matching fit therebetween, the arc plate 212 is fixedly connected with the outer side wall, for example, the fixed connection can be welding, in some small-sized machine application conditions, the arc plate 212 and the outer side wall of the compressor can also be fixedly connected by pasting, the second end of the second support rod 22 is connected with the first end of the rubber pad assembly, in a specific embodiment, the second end of the second support rod 22 is provided with a connecting end plate 222, which is connected (for example, glued) with one end surface of the rubber pad 11. In a feasible embodiment, the arc plate 212 and the first support rod 21 are integrally formed, and more preferably, they are integrally welded in an assembled manner.

[0082] In the technical solution, the arc plate 212 and the outer side wall of the compressor 100 have a larger contact matching area compared with the direct connection of the first support rod 21, which can make the connection of the first connecting structure and the compressor 100 more reliable and stable, and the damping effect can also be improved to a certain extent.

[0083] In some embodiments,

[0084] The outer peripheral wall of the cylinder body 211 is sleeved with a spiral spring 213, one end of the spiral spring 213 abuts against the end surface of the first end of the rubber pad assembly. The spiral spring 213 is arranged between the first connecting structure and the rubber pad assembly, which can exert a repulsive force (a rebound force after compression) between the first connecting structure and the rubber pad assembly, thereby improving the lower limit of the support capacity of the side wall damping and fixing assembly 300, especially when the coil is energized and the action of the magnetorheological body is abnormal, the basic damping capacity can be provided; the spiral spring 213 is sleeved on the cylinder body 211, and there is a certain gap therebetween, so that the cylinder body 211 can limit the deformation direction of the spiral spring, prevent the bending of the spiral spring, ensure the axial output effect, and further improve the damping adjustment effect of the first connecting structure.

[0085] In some embodiments, the second connecting structure comprises a third supporting rod 31, one end of the third supporting rod 31 is detachably connected with the outer casing 101 through a clamping connector, in particular, the third supporting rod 31 comprises a threaded rod, and the clamping connector is a nut 32 which is threadedly connected on the threaded rod; and / or, the third supporting rod 31 further comprises a connecting plate at one end of the threaded rod, the connecting plate is fixedly connected with the end face of the second end of the rubber pad assembly, and the fixed connection is specifically, for example, adhesive connection, etc. The second connecting structure and the outer casing 101 are quickly assembled.

[0086] According to the embodiments of the present application, a stationary air conditioner is also provided, comprising the above-mentioned compressor damping fixing device.

[0087] The compressor damping fixing device is adopted, the bottom damping fixing assembly 200 and the side wall damping fixing assembly 300 together realize damping support fixing of the compressor 100, the side wall damping fixing assembly 300 adopts the rubber pad assembly, and the rubber pad 11 in the rubber pad assembly can be heated by the heating member 12 to realize real-time adjustment and matching of the rigidity and the running frequency of the compressor 100, so that the damping support effect of the compressor damping fixing device of the present application is more optimal, and damage caused by excessive stress at the suction and exhaust port connection position of the compressor 100 is effectively prevented.

[0088] According to the embodiments of the present application, in combination with the description of Figure 5 and Figure 6 a control method of the above-mentioned stationary air conditioner is also provided, comprising the following steps:

[0089] obtaining the running state of the compressor 100, the running state comprising a first state, when the compressor 100 is in the first state, the compressor 100 is in the vehicle parking and compressor running state;

[0090] when the compressor 100 is in the first state, obtaining the real-time running frequency of the compressor 100, controlling and adjusting the current of the heating member 12 to a first preset current value according to the real-time running frequency to adjust the rigidity of the rubber pad assembly to a preset rigidity target value corresponding to the real-time running frequency, and controlling and adjusting the current of the power supply coil 221 to a second preset current value according to the real-time running frequency to adjust the damping of the first connecting structure to a preset damping target value corresponding to the real-time running frequency.

[0091] The technical scheme can adjust the rigidity of the rubber pad assembly and the damping of the first connecting structure according to the operating state (i.e., the real-time operating frequency of the compressor), so that the compressor 100 can be adjusted to the corresponding preset current value according to the corresponding real-time operating frequency when the compressor 100 is in the first state, the vibration reduction effect is at a relatively optimal level, and then the vibration response average at the suction and exhaust port connecting pipe of the compressor 100 is at a relatively low level, effectively preventing damage to the connecting pipe.

[0092] In some embodiments,

[0093] The operating state includes a second state. When the compressor 100 is in the second state, the compressor 100 is in a vehicle driving and compressor shutdown state. It can be understood that in this state, the temperature regulation demand in the cab is provided by the original vehicle air conditioner (the power source is the engine of the vehicle) during the operation (i.e., during driving), so the parking air conditioner is not running during this process. When the compressor 100 is in the second state, the control adjusts the energization current of the heating element 12 to a third preset current value, and adjusts the energization current of the energization coil 221 to a fourth preset current value.

[0094] In the technical scheme, the heating element 12 and the energization coil 221 are both energized with a preset current value during vehicle driving, so that the vibration reduction fixing device still has a certain optimal rigidity and damping, the vibration reduction effect is at a relatively optimal level, and then the vibration response average at the suction and exhaust port connecting pipe of the compressor 100 is at a relatively low level in this state, effectively preventing damage to the connecting pipe.

[0095] The operating state includes a third state. When the compressor 100 is in the third state, the compressor 100 is in a vehicle driving (i.e., the parking air conditioner at this time is not applied to) and the compressor is in a packaging and transportation state. At this time, the compressor 100 is in a packaging and transportation state, but there is still a vibration working condition;

[0096] When the compressor 100 is in the third state, the control adjusts the energization current of the heating element 12 to a fifth preset current value, and adjusts the energization current of the energization coil 221 to a sixth preset current value.

[0097] In the technical scheme, the heating element 12 and the energization coil 221 are both energized with a preset current value during vehicle driving, so that the vibration reduction fixing device still has a certain optimal rigidity and damping, the vibration reduction effect is at a relatively optimal level, and then the vibration response average at the suction and exhaust port connecting pipe of the compressor 100 is at a relatively low level in this state, effectively preventing damage to the connecting pipe.

[0098] For details, Figure 5As shown, the first preset current value and the second preset current value are obtained in the following manner:

[0099] The compressor 100 is fixed in the stationary air conditioner outdoor unit by using the compressor damping fixing device;

[0100] The compressor is operated to test the vibration of the outdoor unit;

[0101] The average vibration response of the compressor suction and exhaust port connecting pipe corresponding to different compressor operating frequencies is obtained;

[0102] With the minimum average vibration response of the compressor suction and exhaust port connecting pipe as the target, the power-on current size of the heating element 12 and the power-on current size of the power-on coil 221 are adjusted at each compressor operating frequency, and the power-on current size of the heating element 12 corresponding to the minimum average vibration response of the compressor suction and exhaust port connecting pipe is recorded as the first preset current value, and the power-on current size of the power-on coil 221 is recorded as the second preset current value. It can be understood that the first preset current value at this time corresponds to each different real-time operating frequency of the compressor 100, and similarly, the second preset current value corresponds to each different real-time operating frequency of the compressor 100;

[0103] The third preset current value and the fourth preset current value are obtained in the following manner:

[0104] A simulation model is established for the compressor damping fixing device;

[0105] Random vibration analysis is performed on the established simulation model based on the vehicle operating road PSD load spectrum;

[0106] With the minimum average vibration response of the compressor suction and exhaust port connecting pipe as the target, the power-on current size of the heating element 12 and the power-on current size of the power-on coil 221 are adjusted, and the power-on current size of the heating element 12 corresponding to the minimum average vibration response of the compressor suction and exhaust port connecting pipe is recorded as the third preset current value, and the power-on current size of the power-on coil 221 is recorded as the fourth preset current value; or,

[0107] The fifth preset current value and the sixth preset current value are obtained in the following manner:

[0108] A simulation model is established for the compressor damping fixing device;

[0109] Random vibration analysis is performed on the established simulation model based on the national standard transportation PSD load spectrum;

[0110] The vibration response mean value of the compressor suction and exhaust port connecting pipe is taken as the target, the energizing current size of the heating element 12 and the energizing current size of the energizing coil 221 are adjusted, and the energizing current size of the heating element 12 corresponding to the minimum vibration response mean value of the compressor suction and exhaust port connecting pipe is recorded as the fifth preset current value, and the energizing current size of the energizing coil 221 corresponding to the minimum vibration response mean value of the compressor suction and exhaust port connecting pipe is recorded as the sixth preset current value.

[0111] Unlike the case that the first preset current value and the second preset current value each have multiple values, the third preset current value to the sixth preset current value each correspond to a relatively optimal preset value determined for the same vehicle operating road PSD load spectrum or the same national standard transportation PSD load spectrum.

[0112] It should be noted that the specific size of each current preset value can be recorded according to the corresponding test or simulation results.

[0113] The specific control method of the present application is further described below in combination with a specific embodiment.

[0114] The parked air conditioner compressor fixing device (i.e., the compressor vibration reduction fixing device described above, the same below) and the control method are mainly applicable to three working conditions of the parked air conditioner:

[0115] The first working condition (i.e., the third state described above) is when the parked air conditioner is packed for factory shipment. A compressor-fixing device system simulation model is established, the random vibration of the compressor-fixing device system is analyzed based on the national standard transportation PSD spectrum (i.e., load spectrum, the same below), the rigidity and damping value of the fixing device are taken as variables, and the vibration response mean value of the compressor suction and exhaust port is taken as the minimum value as the optimization target, to obtain the rubber temperature value (which is achieved by adjusting the energizing current of the heating element 12, i.e., the fifth current preset value described above) and the coil current value (i.e., the sixth current preset value described above) of the device corresponding to the parked air conditioner during the factory shipment.

[0116] The second working condition (i.e., the second state described above) is when the parked air conditioner is installed on the cab of a truck, but the truck is driving on the road (i.e., the parked air conditioner is not working). A compressor-fixing device system simulation model is established, the random vibration of the compressor-fixing device system is analyzed based on the road excitation PSD spectrum during the truck driving, the rigidity and damping value of the fixing device are taken as variables, and the vibration response mean value of the compressor suction and exhaust port is taken as the minimum value as the optimization target, to obtain the rubber temperature value (i.e., the third current preset value described above) and the coil current value (i.e., the fourth current preset value described above) of the device corresponding to the parked air conditioner during the truck driving.

[0117] The third working condition (i.e. the first state mentioned above) is to test the vibration of the stationary air conditioner outdoor unit when the stationary air conditioner compressor is working (at this time the truck is stopped), to test the average vibration response of the compressor suction and exhaust port under different compressor operating frequencies, and to adjust the rubber temperature value (i.e. the first current preset value mentioned above) and the coil current value (i.e. the second current preset value mentioned above) in the compressor fixing device to obtain the data set of the rubber temperature value and the coil current value in the compressor fixing device under different compressor operating frequencies.

[0118] The data set of the rubber temperature value and the coil current value in the fixing device under the above three working conditions is integrated to obtain the complete data set in the control method.

[0119] The compressor fixing device is installed between the compressor 100 and the outdoor unit stand plate (i.e. the outdoor unit shell 101) that needs to be damped, the nut 32 can fix the device on the outdoor unit stand plate, and the arc plate 212 is welded on the cylinder in the compressor 100 to complete the installation. The controller 4 will automatically control each heating element 12 and the energized coil 221 to reach the temperature value and the current value in the data set under different working conditions, so as to achieve better damping and noise reduction effect of the stationary air conditioner compressor under different working conditions.

[0120] The above only describes the preferred embodiments of the present application and does not 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 only describes the preferred embodiments of the present application and does not 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 only describes the preferred embodiments of the present application and does not 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.

Claims

1. A compressor vibration damping and fixing device, comprising a bottom vibration damping and fixing assembly (200) supported on the bottom wall of a compressor (100), characterized in that, It also includes a sidewall vibration damping fixing assembly (300), which includes: The rubber pad assembly includes a rubber pad (11) and a heating element (12) for heating the rubber pad (11). The magnitude of the current supplied to the heating element (12) can be changed according to the real-time operating frequency of the compressor (100) to adjust the stiffness of the rubber pad assembly. A first connecting structure, one end of which is connected to the first end of the rubber pad assembly, and the other end of which is connected to the outer wall of the compressor (100). The first connecting structure includes a first support rod (21) and a second support rod (22). The first end of the first support rod (21) has a cylinder (211). The inner cavity of the cylinder (211) is filled with magnetorheological fluid. The first end of the second support rod (22) is equipped with an energized coil (221). The first end of the second support rod (22) is slidably connected to the cylinder (211). The magnitude of the energized current of the energized coil (221) can be changed according to the real-time operating frequency of the compressor (100) to adjust the damping of the first connecting structure. The second connection structure has one end connected to the second end of the rubber pad assembly and the other end connected to the outdoor unit housing (101) of the air conditioner. The second connection structure includes a third support rod (31), one end of which is detachably connected to the outdoor unit housing (101) via a clamping connector. The rubber pad (11) has multiple components, and the heating element (12) is provided between two adjacent rubber pads (11). Each rubber pad (11) has a receiving cavity, and each receiving cavity is provided with a temperature sensor (111). The temperature sensor (111) is used to detect the real-time temperature of the corresponding rubber pad (11). A helical spring (213) is fitted onto the outer peripheral wall of the cylinder (211), and one end of the helical spring (213) abuts against the end face of the first end of the rubber pad assembly.

2. The compressor vibration damping and fixing device according to claim 1, characterized in that, The second end of the first support rod (21) is connected to an arc plate (212), the arc shape of which matches the arc shape of the outer wall of the compressor (100), the arc plate (212) is fixedly connected to the outer wall, and the second end of the second support rod (22) is connected to the first end of the rubber pad assembly.

3. The compressor vibration damping and fixing device according to claim 1, characterized in that, The third support rod (31) includes a threaded rod, and the clamping connector is a nut (32), which is threaded onto the threaded rod; and / or, the third support rod (31) further includes a connecting plate at one end of the threaded rod, which is fixedly connected to the second end face of the rubber pad assembly.

4. A parking air conditioner, characterized in that, The compressor vibration damping and fixing device includes any one of claims 1 to 3.

5. A control method for a parking air conditioner as described in claim 4, characterized in that, Includes the following steps: The operating status of the compressor (100) is obtained, the operating status includes a first state, when the compressor (100) is in the first state, the compressor (100) is in the vehicle parking and compressor running state; When the compressor (100) is in the first state, the real-time operating frequency of the compressor (100) is obtained, and the current of the heating element (12) is adjusted to a first preset current value according to the real-time operating frequency to adjust the stiffness of the rubber pad assembly to a preset stiffness target value corresponding to the real-time operating frequency. The current of the energized coil (221) is adjusted to a second preset current value according to the real-time operating frequency to adjust the damping of the first connection structure to a preset damping target value corresponding to the real-time operating frequency.

6. The control method according to claim 5, characterized in that, The operating state includes a second state, in which the compressor (100) is in the second state, and the compressor (100) is in a state where the vehicle is in motion and the compressor is stopped. When the compressor (100) is in the second state, the energizing current of the heating element (12) is controlled and adjusted to a third preset current value, and the energizing current of the energizing coil (221) is controlled and adjusted to a fourth preset current value; or, The operating state includes a third state, in which the compressor (100) is in the third state, the compressor (100) is in the vehicle driving state and the compressor is in the packaging and transportation state; When the compressor (100) is in the third state, the current of the heating element (12) is controlled and adjusted to the fifth preset current value, and the current of the energized coil (221) is controlled and adjusted to the sixth preset current value.

7. The control method according to claim 6, characterized in that, The first preset current value and the second preset current value are obtained in the following manner: The compressor (100) is fixed inside the outdoor unit of the parking air conditioner using the compressor vibration damping and fixing device. The compressor was run to perform vibration testing on the external unit. Obtain the average vibration response of the compressor intake and exhaust port pipes at different compressor operating frequencies; With the goal of minimizing the average vibration response of the compressor's intake and exhaust port pipes, the current of the heating element (12) and the current of the energizing coil (221) are adjusted at each compressor operating frequency. The current of the heating element (12) corresponding to the minimum average vibration response of the compressor's intake and exhaust port pipes is recorded as the first preset current value, and the current of the energizing coil (221) corresponding to the minimum is recorded as the second preset current value; or, The third and fourth preset current values ​​are obtained in the following manner: A simulation model was established for the compressor vibration damping and fixing device; Random vibration analysis was performed on the established simulation model based on the PSD load spectrum of the vehicle operating road. With the goal of minimizing the average vibration response of the compressor's intake and exhaust port pipes, the magnitude of the current supplied to the heating element (12) and the magnitude of the current supplied to the coil (221) are adjusted, and the magnitude of the current supplied to the heating element (12) corresponding to the minimum average vibration response of the compressor's intake and exhaust port pipes is recorded as the third preset current value, and the magnitude of the current supplied to the coil (221) corresponding to the minimum is recorded as the fourth preset current value; or, The fifth and sixth preset current values ​​are obtained in the following manner: A simulation model was established for the compressor vibration damping and fixing device; Random vibration analysis was performed on the established simulation model based on the national standard transportation PSD load spectrum. With the goal of minimizing the average vibration response of the compressor intake and exhaust port pipes, the current of the heating element (12) and the current of the energizing coil (221) are adjusted, and the current of the heating element (12) corresponding to the minimum vibration response of the compressor intake and exhaust port pipes is recorded as the fifth preset current value, and the current of the energizing coil (221) corresponding to the minimum is recorded as the sixth preset current value.

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