Vibration reduction foot pad and air conditioner

Abstract

The damping foot pad comprises a base, a piston and a connecting piece, the base is provided with a containing cavity, the piston is arranged in the containing cavity and can slide along the containing cavity, and the piston and the containing cavity are matched to form a closed cavity; the connecting piece sequentially penetrates through and is connected with the base and the piston, and a ventilation channel is formed in the connecting piece and used for connecting the external environment and the closed cavity. The closed cavity is formed by the piston and the containing cavity of the base, the piston can slide along the containing cavity, and the air exchange channel is arranged on the connecting piece to change the air pressure in the closed cavity so as to change the hardness of the damping foot pad, so that the damping foot pad adapts to the amplitude and the vibration frequency of the compressor under different conditions; and the vibration isolation effect of the vibration reduction foot pad on the compressor in different states is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a vibration-damping foot pad and an air conditioner. Background Art

[0002] The compressor, a driven fluid machine that boosts low-pressure gas to high-pressure, is the heart of the refrigeration system. It draws low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the motor-driven piston, and discharges high-temperature, high-pressure refrigerant gas through the exhaust pipe, powering the refrigeration cycle. It is the most important component of an air conditioner. During operation, the motor inside the compressor vibrates during startup, shutdown, and other operations, causing vibration and noise in the air conditioner.

[0003] At present, manufacturers usually reduce the impact of compressor vibration on air conditioners by installing foot pads on the compressor. Since the hardness of the foot pads cannot be adjusted, the vibration amplitude and frequency of the compressor are different when it starts, stops and runs, resulting in poor vibration isolation effect of the foot pads on the vibration of the compressor in various different working states. Utility Model Content

[0004] The main purpose of the embodiments of the present utility model is to provide a vibration-damping foot pad and an air conditioner, aiming to improve the technical problem that the hardness of the foot pad cannot be adjusted in the prior art.

[0005] The embodiment of the present utility model provides a vibration-damping foot pad, comprising:

[0006] A base having a receiving cavity;

[0007] a piston disposed in the accommodating cavity and slidable along the accommodating cavity, wherein the piston cooperates with the accommodating cavity to form a closed cavity;

[0008] A connecting piece passes through and connects the base and the piston in sequence. The connecting piece is provided with a ventilation channel, and the ventilation channel is used to connect the external environment and the closed cavity.

[0009] In some embodiments of the present invention, the ventilation channel includes a first channel section and a second channel section connected in sequence, the first channel section is used to connect the external environment and the second channel section, and the second channel section is used to connect the first channel section and the closed cavity.

[0010] In some embodiments of the present invention, the first channel section is arranged along the length direction of the connecting member, and the second channel section is arranged along the width direction of the connecting member.

[0011] In some embodiments of the present invention, the central axis of the first channel section coincides with the central axis of the connecting member.

[0012] In some embodiments of the present invention, the second channel section passes through the connecting piece, and the first channel section is connected to the middle portion of the second channel section.

[0013] In some embodiments of the present invention, one end of the ventilation channel communicating with the closed cavity is located at a position of the connecting piece close to the bottom wall of the closed cavity.

[0014] In some embodiments of the present invention, at least one sealing ring is provided between the piston and the connecting member.

[0015] In some embodiments of the present invention, the base includes a base body and a cylinder member, the base body has a concave groove, the cylinder member is arranged in the concave groove, the cylinder member has the accommodating cavity, and the connecting member passes through and connects the base body, the cylinder member and the piston in sequence.

[0016] In some embodiments of the present invention, an elastic member is sleeved on the connecting member, one end of the elastic member abuts against the bottom of the piston, and the other end of the elastic member abuts against the bottom wall of the accommodating cavity.

[0017] In some embodiments of the present invention, an air conditioner is further provided, which includes the above-mentioned vibration-damping foot pad.

[0018] An embodiment of the utility model provides a vibration-damping foot pad and an air conditioner. The vibration-damping foot pad forms a closed cavity through the accommodating cavity of the piston and the base, and allows the piston to slide along the accommodating cavity. The air pressure in the closed cavity is changed by arranging an air exchange channel on the connecting part, thereby changing the hardness of the vibration-damping foot pad, so as to adapt to the amplitude and frequency of the compressor under different conditions, and improve the vibration isolation effect of the vibration-damping foot pad on the compressor under different states. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a vibration-damping foot pad according to an embodiment of the present invention.

[0021] Figure numerals: 10, vibration-damping foot pad; 100, base; 101, closed cavity; 110, cylinder member; 2, piston; 300, connecting member; 301, first channel section; 302, second channel section; 310, ventilation channel; 400, elastic member. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] like Figure 1As shown, the present invention provides a vibration-damping pad 10, which is generally installed between the bottom of the compressor and the outer shell of the outdoor unit. The vibration-damping pad 10 includes a base 100, a piston 2, and a connector 300. The piston 2 is disposed in an accommodating chamber and can slide along the accommodating chamber. The piston 2 cooperates with the accommodating chamber to form a closed chamber 101. The connector 300 sequentially passes through and connects the base 100 and the piston 2. The connector 300 is provided with a ventilation channel 310, which is used to connect the external channel and the closed chamber 101.

[0027] Among them, the piston 2 is slidably arranged in the accommodating chamber, and cooperates with the bottom wall and side wall of the accommodating chamber to form a closed chamber 101; generally, if the piston 2 slides along the accommodating chamber, that is, the piston 2 slides along the connection direction between the top and the bottom of the accommodating chamber, whether the piston 2 slides depends on the pressure exerted on the piston 2 and the pressure in the closed chamber 101. For example, when the pressure exerted on the piston 2 is greater than the pressure in the closed chamber 101, the piston 2 will slide down.

[0028] Among them, the end of the ventilation channel 310 away from the closed cavity 101 is generally connected in parallel with the air supply pipe and the air release pipe, the air supply pipe is connected to the air pump, and the air release pipe is connected to the vacuum pump. The gas medium is input into the ventilation channel 310 through the air pump, thereby increasing the pressure in the closed cavity 101; the gas medium in the closed cavity 101 is absorbed by the vacuum pump, thereby reducing the pressure in the closed cavity 101.

[0029] It can be understood that the vibration-damping pad 10 forms a closed cavity 101 through the accommodating cavity of the piston 2 and the base 100, and allows the piston 2 to slide along the accommodating cavity, and by setting an air exchange channel 310 on the connecting part 300, the air pressure in the closed cavity 101 is changed, thereby changing the hardness of the vibration-damping pad 10, so as to adapt to the amplitude and frequency of the compressor under different conditions, and improve the vibration isolation effect of the vibration-damping pad 10 on the compressor under different states.

[0030] In some embodiments, the ventilation channel 310 includes a first channel section 301 and a second channel section 302 connected in sequence. The first channel section 301 is used to connect the external environment and the second channel section 302. The second channel section 302 is used to connect the first channel section 301 and the closed cavity 101.

[0031] The connecting member 300 is generally a bolt or other parts. Dividing the ventilation channel 310 into two parts facilitates the processing and forming of the ventilation channel 310 and is also beneficial for the bolts and other parts to maintain rigidity.

[0032] In some embodiments, the first channel section 301 is disposed along the length direction of the connector 300 , and the second channel section 302 is disposed along the width direction of the connector 300 .

[0033] Among them, the piston 2 and the base 100 are arranged in sequence along the length direction of the connecting member 300. The first channel section 301 is arranged along the length direction of the connecting member 300, so that when the gas medium enters the connecting member 300, it can follow the first channel section 301 to reach the second channel section 302 in the shortest path; similarly, the second channel section 302 is arranged along the width of the connecting member 300, so that the airflow of the first channel section 301 enters the second channel section 302 and then enters the closed cavity 101 in the shortest path.

[0034] In some embodiments, the central axis of the first channel section 301 coincides with the central axis of the connecting member 300 .

[0035] Among them, the connecting part 300 is generally a cylindrical structure, such as a stud, a screw, etc. In order to ensure that the connecting part 300 has high rigidity after the first channel section 301 is processed on the connecting part 300, the central axis of the first channel section 301 is set to coincide with the central axis of the connecting part 300, that is, the first channel section 301 starts along the central axis of the connecting part 300.

[0036] In some embodiments, the second channel section 302 passes through the connector 300 , and the first channel section 301 is connected to the middle portion of the second channel section 302 .

[0037] It can be understood that the second channel section 302 passes through the connecting member 300 along the width direction of the connecting member 300, and the first channel section 301 is connected to the middle part of the second channel section 302, that is, the ventilation channel 310 and the closed cavity 101 have two connecting ports, which can increase the air intake rate and the air outlet rate.

[0038] In some embodiments, one end of the second channel section 302 may be connected to the first channel section 301, and the other end may be connected to the closed cavity 101. That is, the ventilation channel 310 and the closed cavity 101 have only one communication port.

[0039] In some embodiments, the ventilation channel 310 includes multiple second channel segments 302 and one first channel segment 301, and the multiple second channel segments 302 are all connected to the first channel segment 301. For example, the multiple second channel segments 302 are all arranged along the width direction of the connecting member 300, and the multiple second channel segments 302 are evenly spaced along the circumference of the connecting member 300.

[0040] In some embodiments, one end of the ventilation channel 310 communicating with the closed cavity 101 is located at a position of the connector 300 close to the bottom wall of the closed cavity 101 .

[0041] That is, the communication port between the ventilation channel 310 and the closed cavity 101 is placed close to the bottom wall of the closed cavity 101 to ensure that the piston 2 does not block the communication port between the ventilation channel 310 and the closed cavity 101 during the sliding process.

[0042] In some embodiments, at least one sealing ring is provided between the piston 2 and the connecting member 300 .

[0043] The sealing ring is arranged between the side wall of the piston 2 and the outer wall of the connecting member 300 to improve the airtightness of the closed cavity 101 and ensure the airtightness of the closed cavity 101 .

[0044] In some embodiments, three sealing rings are provided between the piston 2 and the connecting member 300 , and the three sealing rings are equally spaced between the piston 2 and the connecting member 300 along the length direction of the connecting member 300 .

[0045] In some embodiments, the base 100 includes a base 100 body and a cylinder part 110. The base 100 body has a concave groove, the cylinder part 110 is arranged in the concave groove, the cylinder part 110 has a accommodating cavity, and the connecting part 300 passes through and connects the base 100 body, the cylinder part 110 and the piston 2 in sequence.

[0046] It is understandable that the base 100 is divided into a base 100 body and a cylinder part 110, wherein the base 100 body and the cylinder part 110 are detachably connected. When the sealing of the cylinder part 110 itself is insufficient, other cylinder parts 110 can be replaced without replacing the entire base 100.

[0047] In some embodiments, an elastic member 400 is sleeved on the connecting member 300 , one end of the elastic member 400 abuts against the bottom of the piston 2 , and the other end of the elastic member 400 abuts against the bottom wall of the accommodating cavity.

[0048] The elastic member 400 is generally a spring.

[0049] It is understandable that an elastic member 400 is provided between the piston 2 and the accommodating chamber. When the air pressure in the closed chamber 101 is insufficient, the elastic force provided by the elastic member 400 can dampen the vibration of the compressor, thereby increasing the adjustable hardness range of the vibration-damping foot pad 10.

[0050] That is, by adjusting the air pressure of the closed cavity 101 at the same time and cooperating with the elastic member 400, the adjustable range of the hardness of the vibration-damping foot pad 10 is increased.

[0051] In some embodiments, an air conditioner is further provided, comprising the vibration-damping pad 10. Since the air conditioner comprises at least some or all of the embodiments of the vibration-damping pad 10, the air conditioner has at least the beneficial effects of some or all of the embodiments, which are not described in detail here.

[0052] Generally, the vibration-damping pad 10 is disposed between the bottom of the air-conditioning compressor and the outdoor unit housing.

[0053] In some embodiments, the air conditioner includes a first amplitude sensor, a second amplitude sensor, and a controller. The first amplitude sensor is disposed on the outdoor unit housing, and the second amplitude sensor is disposed on the compressor. The air conditioner also includes an air pump, a vacuum pump, an air supply pipe, and an air intake pipe. The air supply pipe connects the air pump to the ventilation passage 310, and the air intake pipe connects the vacuum pump to the ventilation pipe. The ventilation pipe and the air supply pipe are connected in parallel at the end of the ventilation passage 310 away from the enclosed chamber 101.

[0054] When the compressor is in different states, such as from shutdown to startup, the controller determines the vibration isolation rate of the vibration damping pad 10 based on the real-time amplitude A1 obtained by the first amplitude sensor and the real-time amplitude A2 obtained by the second amplitude sensor. The controller adjusts the pressure in the closed cavity 101 of the vibration-damping foot pad 10 by controlling the air pump and the vacuum pump, thereby adjusting the hardness of the vibration-damping foot pad 10 so that the vibration isolation rate of the vibration-damping foot pad 10 is at a minimum value.

[0055] Among them, the controller is set to allow the air pressure range of the closed cavity 101 to be adjusted to P0-P1, that is, the controller adjusts the air pressure of the closed cavity 101 at P0-P1 so that the air pressure value of the closed cavity 101 can minimize the vibration isolation rate of the vibration-damping foot pad 10 in the current state.

[0056] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the application concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vibration-damping foot pad, characterized in that: include: A base having a receiving cavity; a piston disposed in the accommodating cavity and slidable along the accommodating cavity, wherein the piston cooperates with the accommodating cavity to form a closed cavity; A connecting piece passes through and connects the base and the piston in sequence. A ventilation channel is provided on the connecting piece. The ventilation channel is used to connect the external environment and the closed cavity.

2. The vibration-damping foot pad according to claim 1, characterized in that: The ventilation channel includes a first channel section and a second channel section connected in sequence, the first channel section is used to connect the external environment and the second channel section, and the second channel section is used to connect the first channel section and the closed cavity.

3. The vibration-damping foot pad according to claim 2, characterized in that: The first channel section is arranged along the length direction of the connecting member, and the second channel section is arranged along the width direction of the connecting member.

4. The vibration-damping foot pad according to claim 3, characterized in that: The central axis of the first channel section coincides with the central axis of the connecting member.

5. The vibration-damping foot pad according to claim 3, characterized in that: The second channel section passes through the connecting piece, and the first channel section is communicated with the middle portion of the second channel section.

6. The vibration-damping foot pad according to claim 1, characterized in that: One end of the ventilation channel communicating with the closed cavity is located at a position of the connecting piece close to the bottom wall of the closed cavity.

7. The vibration-damping foot pad according to claim 1, characterized in that: At least one sealing ring is provided between the piston and the connecting member.

8. The vibration-damping foot pad according to claim 1, characterized in that: The base includes a base body and a cylinder member, the base body has a concave groove, the cylinder member is arranged in the concave groove, the cylinder member has the accommodating cavity, and the connecting member passes through and connects the base body, the cylinder member and the piston in sequence.

9. The vibration-damping foot pad according to any one of claims 1 to 8, characterized in that: An elastic member is sleeved on the connecting member, one end of the elastic member abuts against the bottom of the piston, and the other end of the elastic member abuts against the bottom wall of the accommodating cavity.

10. An air conditioner, characterized in that: The vibration-damping foot pad comprises the vibration-damping foot pad according to any one of claims 1 to 9.

Images