CN114909277A - Compressor capable of providing negative pressure function - Google Patents

Compressor capable of providing negative pressure function Download PDF

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Publication number
CN114909277A
CN114909277A CN202210448536.4A CN202210448536A CN114909277A CN 114909277 A CN114909277 A CN 114909277A CN 202210448536 A CN202210448536 A CN 202210448536A CN 114909277 A CN114909277 A CN 114909277A
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China
Prior art keywords
negative pressure
transmission
block
compressor
compression
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Granted
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CN202210448536.4A
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Chinese (zh)
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CN114909277B (en
Inventor
赵兴
储呈国
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Tianjin University
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Tianjin University
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Priority to CN202210448536.4A priority Critical patent/CN114909277B/en
Publication of CN114909277A publication Critical patent/CN114909277A/en
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Publication of CN114909277B publication Critical patent/CN114909277B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention discloses a compressor capable of providing a negative pressure function, which solves the defect that the compressor only has a compression refrigeration function but does not have the negative pressure function for a refrigerator in the prior art, and adopts the following technical scheme in order to solve the technical problem: a compressor capable of providing a negative pressure function, comprising: the shell is internally provided with a partition plate, the partition plate divides the interior of the shell into a compression cavity and a negative pressure cavity, a compressor is arranged in the compression cavity, a negative pressure machine is arranged in the negative pressure cavity, and the compressor and the negative pressure machine are linked through a transmission mechanism. According to the refrigerator, the negative pressure machine and the compressor are arranged in the shell, the negative pressure machine and the compressor can provide a compression refrigeration function and a negative pressure function for the refrigerator, and in order to enable the structure of the negative pressure machine to be simpler, the negative pressure machine and the compressor are connected through the transmission mechanism, so that the overall structure between the negative pressure machine and the compressor can be more simplified, and the volume of the storage cavity of the refrigerator is increased.

Description

Compressor capable of providing negative pressure function
Technical Field
The invention relates to the technical field of refrigerator equipment, in particular to a compressor capable of providing a negative pressure function.
Background
Along with the development of science and technology, the requirements of common people on the actual functions of the refrigerator are more and more diversified, for example, a vacuum drawer needs to be arranged in the refrigerator, and when food is placed in the vacuum drawer, the food preservation effect is better. Therefore, a vacuum pump is required to be installed in the refrigerator for evacuating the vacuum drawer.
In addition, a humidifier needs to be arranged in the refrigerating chamber of the refrigerator, vegetables are usually stored in the refrigerating chamber of the refrigerator, but the humidity of air in the refrigerating chamber is usually low due to the refrigeration, so that the vegetables can be shriveled, the freshness of the vegetables is not facilitated, and the humidifier needs to be arranged in the refrigerating chamber. A water storage tank is usually arranged in the refrigerator, and a water pump is needed to convey water in the water storage tank to a water storage device in the humidifier.
In the prior art, the requirement cannot be met only by the existing common compressor, so that a negative pressure machine is required to be additionally arranged to provide a negative pressure function for the refrigerator; however, the addition of the negative pressure machine not only increases the cost for manufacturing the refrigerator, but also reduces the capacity of the refrigerator after the installation of the negative pressure machine due to the addition of the negative pressure machine.
Chinese patent publication No. CN215444337U, announcement day 2022 year 1 month 7 days, the utility model discloses a compressor negative pressure grease proofing system, including the well body, the one end of the well body is provided with the compression end, and the other end is provided with the power end, the center of the well body is provided with the piston rod, be provided with the frizing device on the piston rod, the one end of frizing device is provided with the exhaust pipe line, be provided with the extraction opening on the exhaust pipe line, the one end of piston rod is provided with cross head moving part, the frizing device includes the protective gas air chamber, the protective gas air chamber is connected with the protective gas import through the protective gas passageway, be provided with a plurality of frizing rings on the frizing device, the exhaust pipe money has oil gas filter through vacuum pump connection. Although the above document can generate negative pressure function, the sub-negative pressure function is not applied to the refrigerator. Therefore, a compressor is needed to provide a negative pressure function for a refrigerator by providing a notification of a compression refrigeration function for the refrigerator, so as to meet the requirement of the refrigerator for a negative pressure safety function.
Disclosure of Invention
The invention overcomes the defect that the compressor only has a compression refrigeration function but does not have a negative pressure function for a refrigerator in the prior art, and provides the compressor with the negative pressure function.
In order to solve the technical problem, the invention adopts the following technical scheme: a compressor capable of providing a negative pressure function, comprising: the shell, be provided with the division board in the casing, the division board is with inside compression chamber and the negative pressure chamber of being divided into of casing, be provided with the compressor in the compression chamber, the negative pressure intracavity is provided with the negative-pressure machine, the compressor with carry out the linkage through drive mechanism between the negative-pressure machine.
According to the refrigerator, the negative pressure machine and the compressor are arranged in the shell, the compression refrigeration function and the negative pressure function can be provided for the refrigerator through the negative pressure machine and the compressor, in order to enable the structure of the negative pressure machine to be simpler, the negative pressure machine and the compressor are connected through the transmission mechanism, so that the power for generating negative pressure by the negative pressure machine is provided through the compressor, the power structure of the negative pressure machine is simplified, the overall structure between the negative pressure machine and the compressor can be more simplified, the design structure in the refrigerator is conveniently optimized, and the volume of the storage cavity of the refrigerator is increased.
Preferably, the compressor comprises a compression crankshaft, the negative pressure machine comprises a negative pressure crankshaft, and the transmission mechanism comprises a compression transmission shaft connected with the compression crankshaft and a negative pressure transmission shaft connected with the negative pressure crankshaft; the tip of compression transmission shaft is provided with first transmission piece, and the tip of negative pressure transmission shaft is provided with the second transmission piece, first transmission piece with the laminating transmission between the second transmission piece.
Through the laminating transmission between first transmission piece and the second transmission piece for transmission structure between negative pressure machine and the compressor is succinct more.
Preferably, a clutch mechanism is arranged between the compression transmission shaft and the negative pressure transmission shaft.
Set up clutching mechanism, can make and carry out power transmission when needs between negative pressure transmission shaft and the compression transmission shaft for only have the negative pressure function when the refrigerator needs the negative pressure function.
Preferably, the negative pressure transmission shaft and the compression transmission shaft are both vertically arranged, and the clutch mechanism comprises:
the clutch block is provided with magnetism, the first transmission block is fixedly arranged on the end face of one end of the clutch block, the other end face of the clutch block is provided with a transfer hole, the end part of the compression transmission shaft, which is close to the second transmission block, is provided with an adapter, and the transfer hole is matched with the adapter;
and the magnetic seat is arranged in the outer circumferential direction of the clutch block.
When the power of the compressor needs to be transmitted to the negative pressure machine, so that the negative pressure machine can generate the power of negative pressure, the magnetic seat is electrified, the magnetic seat generates magnetism, the magnetic seat generates acting force on the clutch block, the clutch block is pushed upwards, and the first transmission block and the second transmission block at the upper end of the clutch block can be in fit transmission; when the negative pressure machine does not need to provide a negative pressure function, the magnetic seat is not electrified, so that the magnetism of the magnetic seat disappears, the clutch block moves downwards through the gravity of the clutch block, the first transmission block and the second transmission block are separated, the power of the first transmission block cannot be transmitted to the second transmission block, and the negative pressure machine stops providing the negative pressure function for the refrigerator; therefore, the power cut-off and linkage between the negative pressure machine and the compressor are realized through the matching between the magnetic seat and the clutch block.
Preferably, the switching hole is a square slot hole, and the switching head is a square slot lug matched with the square slot hole.
The cooperation between square groove hole and the square groove lug for transmission efficiency between clutch block and the adapter is better.
Preferably, the first transmission block is eccentrically fixed on the end surface of the clutch block, and the length of the first transmission block is smaller than the radius of the end surface of the clutch block;
the second transmission block is eccentrically fixed on the end face of the negative pressure transmission shaft, and the length of the second transmission block is smaller than the radius of the end face of the negative pressure transmission shaft.
The length of the first transmission block is smaller than the radius of the end face of the clutch block, and the length of the second transmission block is smaller than the radius of the end face of the negative pressure transmission shaft; when making first transmission piece and the second transmission piece separation after laminating the transmission once more, can not take place to misplace each other and take place the condition of mutual interference, when the thrust upward movement of magnetic base is received to the clutch, first transmission piece only need through rotating certain angle can with the second between the transmission piece take place the laminating to make and to carry out the transmission of power between first transmission piece and the second transmission piece.
Preferably, the adapter is a round hole, and the adapter is a round head matched with the round hole; the side wall of the transfer hole comprises a spline groove inner ring and a spline-free groove ring, the spline groove inner ring is close to the orifice of the round hole, and the spline-free groove ring is far away from the orifice of the round hole; the circumference lateral wall of button head is provided with spline groove inner ring matched with spline groove outer loop, spline outer loop sets up the top of the circumference lateral wall of button head.
When the magnetic base is not electrified, no power is transmitted between the compressor and the negative pressure machine, the clutch hand falls under the action of gravity, and the spline groove inner ring in the switching hole and the spline outer ring groove on the circumferential side wall of the round head are staggered and not meshed, so that no power transmission occurs between the round head and the clutch head; when the compressor needs to provide power for the negative pressure machine, the magnetic base is electrified, the electrified magnetic base enables the clutch head to move upwards, the spline groove inner ring in the switching hole is meshed with the spline outer ring groove on the circumferential side wall of the round head, power transmission is achieved between the circumference and the clutch head, the power of the compressor can drive the negative pressure machine to move, and the function of providing negative pressure for the refrigerator is achieved.
Preferably, the first transmission block is eccentrically fixed on the end surface of the clutch block, and the length of the first transmission block is greater than the radius of the end surface of the clutch block;
the second transmission block is eccentrically fixed on the end face of the negative pressure transmission shaft, and the length of the second transmission block is greater than the radius of the end face of the negative pressure transmission shaft;
when the magnetic seat is electrified or not electrified, the first transmission block and the second transmission block are attached to each other.
In order to prolong the service life of the first transmission block and the second transmission block and reduce the shear stress between the first transmission block and the second transmission block due to power transmission, the length of the first transmission block is set to be larger than the radius of the end surface of the clutch block; setting the length of the second transmission block to be larger than the radius of the end face of the negative pressure transmission shaft; the contact area between the first transmission block and the second transmission block is improved, and the shearing stress between the first transmission block and the second transmission block due to power transmission is reduced.
Preferably, the partition plate is provided with a transmission hole, and a shaft seal is arranged in the transmission hole; the compression transmission shaft penetrates through a shaft seal hole of the shaft seal.
Through the arrangement of the shaft seal, the negative pressure cavity and the compression cavity are mutually sealed and isolated, and the respective working efficiency of the negative pressure machine and the compressor is improved.
Compared with the prior art, the invention has the beneficial effects that: (1) the refrigerator is provided with a compression refrigeration function, and meanwhile, when the refrigerator needs a negative pressure function, the negative pressure function can be provided according to actual needs; (2) the structure is simple, so that the overall structure between the negative pressure machine and the compressor can be more simplified, the design structure in the refrigerator is convenient to optimize, and the volume of a storage cavity of the refrigerator is increased; (3) the control structure is simple, and the traditional clutch transmission mode is simplified.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the internal structure of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic structural view of the first transmission block directly separated from the second transmission block in the first embodiment of the present invention;
FIG. 5 is a structural view of a clutch plate of the first embodiment of the present invention;
fig. 6 is a structural view of a compression drive shaft of the first embodiment of the present invention;
FIG. 7 is a schematic view of the clutch block of the second embodiment of the present invention shown in a power-off configuration with the head thereof;
FIG. 8 is a schematic view of the clutch block of the second embodiment of the present invention in power connection with the knob;
FIG. 9 is a structural view of a clutch block of the second embodiment of the present invention;
fig. 10 is a schematic structural view of a compression drive shaft of a second embodiment of the present invention;
in the figure: 1. the device comprises a shell, 11, a separation plate, 12, a compression cavity, 13, a negative pressure cavity, 41, an upper exhaust pipe, 15, an upper air suction pipe, 16, an upper process pipe, 17, a lower exhaust pipe, 18, a lower air suction pipe, 19, a lower process pipe, 21, a compression crankshaft, 22, a compression transmission shaft, 221, a square groove lug, 222, a round head, 2221, a spline outer groove ring, 31, a negative pressure crankshaft, 32, a negative pressure transmission shaft, 321, a second transmission block, 41, a clutch block, 411, a square groove hole, 412, a round hole, 413, a first transmission block, 4121, a spline inner ring, 4122, a spline-free groove ring, 42 and a magnetic seat.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: referring to fig. 1 to 6, a compressor capable of providing a negative pressure function includes: the upper half part outside the shell 1 is connected with an upper exhaust pipe 14, an upper air suction pipe 15 and an upper process pipe 16, and the lower half part outside the shell 1 is connected with a lower exhaust pipe 17, a lower air suction pipe 18 and a lower process pipe 19; be provided with division board 11 in the casing 1, division board 11 separates casing 1 inside and becomes the compression chamber 12 and the negative pressure chamber 13 of first half that the position is the latter half, and compression chamber 12 and negative pressure chamber 13 are two independent sealed spaces, are provided with the compressor in the compression chamber 12, are provided with the negative pressure machine in the negative pressure chamber 13, and compressor and negative pressure machine all belong to prior art, carry out the linkage through drive mechanism between compressor and the negative pressure machine.
The compressor comprises a compression crankshaft 21, the compression crankshaft 21 drives a crank piston mechanism communicated in the compressor to compress air, the negative pressure machine comprises a negative pressure crankshaft 31, and the negative pressure crankshaft 31 drives the crank piston mechanism in the negative pressure machine to move to generate negative pressure; the transmission mechanism comprises a compression transmission shaft 22 movably connected with the compression crankshaft 21 and a negative pressure transmission shaft 32 fixedly connected with the negative pressure crankshaft 31; the partition plate 11 is provided with a transmission hole 111, and a shaft seal 112 is arranged in the transmission hole 111; the compression transmission shaft 22 is arranged in a shaft seal hole of the shaft seal 112 in a penetrating way; the end of the compression transmission shaft 22 is provided with a first transmission block 413, the end of the negative pressure transmission shaft 32 is provided with a second transmission block 321, and the first transmission block 413 and the second transmission block 321 are in fit transmission.
In order to cut off and connect the power between the first transmission block 413 and the second transmission block at any time, a clutch mechanism is provided between the compression transmission shaft 22 and the negative pressure transmission shaft 32. Negative pressure transmission shaft 32 all sets up along vertical direction with compression transmission shaft 22, and clutching mechanism includes:
the clutch block 41, the clutch block 41 is a magnetic block with magnetism, the first transmission block 413 is fixedly arranged on the end face of one end of the clutch block 41, the other end face of the clutch block 41 is provided with a transfer hole, the end part of the compression transmission shaft 22 close to the second transmission block 321 is provided with an adapter, the transfer hole is matched and movably connected with the adapter, and the clutch block 41 can slide along the axial direction of the transfer hole;
magnetic base 42, fixed setting is in transmission hole 111 department, the inside cavity that is provided with of magnetic base 42, the top of cavity is provided with spacing platform, separation and reunion piece 41 sets up in the cavity, the outer circumferencial direction of separation and reunion piece 41 is provided with the spacing ring, the spacing platform of circumference is used for restricting the activity displacement of separation and reunion piece 41 with the spacing ring cooperation, when magnetic base 42 circular telegram, magnetic base 42 can produce magnetic field for separation and reunion piece 41 upwards moves, in this embodiment, magnetic base 42 belongs to prior art.
The transfer hole is a square slot 411, and the transfer hole is a square slot bump 221 matched with the square slot 411.
As shown in fig. 5 or 6, in order to enable the efficiency of the transmission between the first transmission block 413 and the second transmission block to be high, the first transmission block 413 is eccentrically fixed on the end surface of the clutch block 41, and the length of the first transmission block 413 is smaller than the radius of the end surface of the clutch block 41; and eccentrically fixing a second transmission block on the end surface of the negative pressure transmission shaft 32, wherein the length of the second transmission block is smaller than the radius of the end surface of the negative pressure transmission shaft 32.
The working principle of the embodiment is as follows: referring to fig. 4, when power of the compressor needs to be transmitted to the negative pressure machine, so that the negative pressure machine can generate negative pressure power, the magnetic seat 42 is energized, the magnetic seat 42 generates magnetism, the magnetic seat 42 generating magnetism generates acting force on the clutch block 41, the clutch block 41 is pushed upwards, the distance between the clutch block 41 and the negative pressure transmission shaft 32 is reduced, and the first transmission block 413 and the second transmission block 321 at the upper end of the clutch block 41 can be in fit transmission; referring to fig. 3, when the negative pressure machine does not need to provide a negative pressure function, the magnetic seat 42 is not electrified, so that the magnetism of the magnetic seat 42 disappears, at this time, the clutch block 41 moves downward by the gravity of itself, so that the distance between the clutch block 41 and the negative pressure transmission shaft 32 is increased, the first transmission block 413 cannot drive the second transmission block 321 to rotate when rotating, the first transmission block 413 is separated from the second transmission block 321, the power of the first transmission block 413 cannot be transmitted to the second transmission block 321, at this time, the power of the compressor stops being transmitted to the negative pressure machine, and the negative pressure machine stops providing a negative pressure function for the refrigerator; therefore, the engagement between the magnetic seat 42 and the clutch piece 41 realizes the power cut-off and linkage between the negative pressure machine and the compressor. The power transmission between the negative pressure machine and the compressor is controlled by controlling the electrification or the outage of the magnetic seat 42, and the work of the negative pressure machine is further controlled.
It should be noted that in the present embodiment, the length of the first transmission block 413 is set to be smaller than the radius of the end surface of the clutch block 41, and the length of the second transmission block 321 is set to be smaller than the radius of the end surface of the negative pressure transmission shaft 32; make first transmission piece 413 and second transmission piece 321 separation after during laminating the transmission once more, can not take place the condition of mutual interference because of taking place to misplace each other, when clutch piece 41 received the thrust upward movement of magnetic base 42, first transmission piece 413 only need through rotating certain angle can with take place the laminating between the second transmission piece 321 to make and to carry out the transmission of power between first transmission piece 413 and the second transmission piece 321.
According to the refrigerator, the negative pressure machine and the compressor are arranged in the shell 1, the compression refrigeration function and the negative pressure function can be provided for the refrigerator through the negative pressure machine and the compressor, in order to enable the structure of the negative pressure machine to be simpler, the negative pressure machine and the compressor are connected through the transmission mechanism, so that the power for generating negative pressure by the negative pressure machine is provided through the compressor, the power structure of the negative pressure machine is simplified, the overall structure between the negative pressure machine and the compressor can be more simplified, the design structure in the refrigerator is conveniently optimized, and the volume of the storage cavity of the refrigerator is increased.
Example 2: referring to fig. 7 to 10, the present embodiment has a structure similar to that of embodiment 1, except that the adapter is a circular hole 412, and the adapter is a round head 222 matched with the circular hole 412; the side wall of the transfer hole comprises a spline groove inner ring 4121 and a non-spline groove ring 4122, the spline groove inner ring 4121 is close to the orifice of the round hole 412, and the non-spline groove ring 4122 is far away from the orifice of the round hole 412; the round head 222 is provided on its circumferential side wall with a spline groove outer ring 2221 fitted with the spline groove inner ring 4121, and the spline outer ring 221 is disposed above the circumferential side wall of the round head 222.
Referring to fig. 9 or 10, first transmission block 413 is eccentrically fixed to an end surface of clutch block 41, and length of first transmission block 413 is greater than radius of the end surface of clutch block 41;
the second transmission block 321 is eccentrically fixed on the end surface of the negative pressure transmission shaft 32, and the length of the second transmission block 321 is greater than the radius of the end surface of the negative pressure transmission shaft 32;
when the magnetic base 42 is energized or not energized, the first transmission block 413 and the second transmission block 321 are both kept attached.
In embodiment 1, since the lengths of the first transmission block 413 and the second transmission block 321 are both smaller than the radius of the connection end surface of each of the first transmission block 413 and the second transmission block 321, the first transmission block 413 and the second transmission block 321 are easily bent under the action of shearing force in a long-term use situation, so that the service lives of the first transmission block 413 and the second transmission block 321 are shortened, and therefore, the requirements on the process and the material for processing the first transmission block 413 and the second transmission block 321 in embodiment 1 are high; therefore, in this embodiment, in order to solve the above technical problem, the length of the first transmission block 413 is set to be larger than the radius of the end surface of the clutch block 41; the length of the second transmission block 321 is set to be larger than the radius of the end surface of the negative pressure transmission shaft 32; the contact area between the first transmission block 413 and the second transmission block 321 is increased, and the shear stress between the first transmission block 413 and the second transmission block 321 due to power transmission is reduced. However, although the first transmission block 413 and the second transmission block 321 can solve the problem in embodiment 1, when the first transmission block 413 and the second transmission block 321 are separated and then attached again in actual use, interference between the first transmission block 413 and the second transmission block 321 is likely to occur due to misalignment between the first transmission block 413 and the second transmission block 321, and in order to avoid interference due to the attachment again, the transmission system in which the spline is provided between the clutch block 41 and the adapter is fixed, and the height between the first transmission block 413 and the second transmission block 321 and the connection end surface thereof is increased, so that the first transmission block 413 and the second transmission block 321 are still attached to each other when the power of the clutch block 41 and the adapter is disconnected.
The working principle of the embodiment is as follows: referring to fig. 7, when the magnet holder 42 is not energized, there is no power transmission between the compressor and the negative pressure machine, and the clutch 41 falls down under the action of gravity, and the spline groove inner ring 4121 in the circular hole 412 and the spline outer ring 2221 on the outer circumferential side wall of the round head 222 are staggered and not engaged, so that no power transmission occurs between the round head 222 and the clutch head 41; referring to fig. 8, when the compressor needs to provide power for the negative pressure machine, the magnetic base 42 is powered on, and the powered magnetic base 42 enables the clutch head 41 to move upwards, so that the spline groove inner ring 4121 in the hole of the circular hole 412 and the spline outer ring groove 2221 on the outer circumferential side wall of the round head 222 are engaged with each other, power transmission occurs between the round head 222 and the clutch head 41, and the power of the compressor can drive the negative pressure machine to move, thereby providing a negative pressure function for the refrigerator. The power transmission between the negative pressure machine and the compressor is controlled by controlling the electrification or the outage of the magnetic seat 42, and the work of the negative pressure machine is further controlled.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.

Claims (9)

1. A compressor capable of providing a negative pressure function, comprising: the shell, be provided with the division board in the casing, the division board is with inside compression chamber and the negative pressure chamber of being divided into of casing, be provided with the compressor in the compression chamber, be provided with the negative pressure machine in the negative pressure chamber, carry out the linkage through drive mechanism between compressor and the negative pressure machine.
2. The compressor capable of providing negative pressure as claimed in claim 1, wherein the compressor includes a compression crankshaft, the negative pressure machine includes a negative pressure crankshaft, the transmission mechanism includes a compression transmission shaft connected to the compression crankshaft and a negative pressure transmission shaft connected to the negative pressure crankshaft; the tip of compression transmission shaft is provided with first transmission piece, and the tip of negative pressure transmission shaft is provided with the second transmission piece, first transmission piece with the laminating transmission between the second transmission piece.
3. The compressor capable of providing negative pressure as claimed in claim 2, wherein a clutch mechanism is provided between the compression transmission shaft and the negative pressure transmission shaft.
4. The compressor capable of providing negative pressure as claimed in claim 3, wherein the negative pressure transmission shaft and the compression transmission shaft are both vertically disposed, and the clutch mechanism comprises:
the clutch block is magnetic, the first transmission block is fixedly arranged on the end face of one end of the clutch block, a transfer hole is formed in the other end face of the clutch block, an adapter is arranged at the end part, close to the second transmission block, of the compression transmission shaft, and the transfer hole is matched with the adapter;
and the magnetic seat is arranged in the outer circumferential direction of the clutch block.
5. The compressor for providing negative pressure as claimed in claim 4, wherein the transfer holes are square slots, and the transfer head is a square slot protrusion engaged with the square slots.
6. The compressor capable of providing negative pressure as claimed in claim 5, wherein the first driving block is eccentrically fixed on the end surface of the clutch block, and the length of the first driving block is smaller than the radius of the end surface of the clutch block;
the second transmission block is eccentrically fixed on the end face of the negative pressure transmission shaft, and the length of the second transmission block is smaller than the radius of the end face of the negative pressure transmission shaft.
7. The compressor capable of providing negative pressure as claimed in claim 4, wherein the adapter hole is a circular hole, and the adapter is a round head matched with the circular hole; the side wall of the transfer hole comprises a splined inner ring (4121) and a spline-free ring (4122), the splined inner ring (4121) is close to the orifice of the round hole, and the spline-free ring (4122) is far away from the orifice of the round hole; and a spline groove outer ring (2221) matched with the spline groove inner ring (4121) is arranged on the circumferential side wall of the round head, and the spline groove outer ring is arranged above the circumferential side wall of the round head.
8. The compressor capable of providing negative pressure as claimed in claim 7, wherein the first driving block is eccentrically fixed to the end surface of the clutch block, and the length of the first driving block is greater than the radius of the end surface of the clutch block;
the second transmission block is eccentrically fixed on the end face of the negative pressure transmission shaft, and the length of the second transmission block is greater than the radius of the end face of the negative pressure transmission shaft;
when the magnetic seat is electrified or not electrified, the first transmission block and the second transmission block are attached to each other.
9. The compressor capable of providing negative pressure as claimed in any one of claims 2 to 8, wherein the partition plate is provided with a transmission hole, and a shaft seal is arranged in the transmission hole; the compression transmission shaft penetrates through a shaft seal hole of the shaft seal.
CN202210448536.4A 2022-04-26 2022-04-26 Compressor capable of providing negative pressure function Active CN114909277B (en)

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CN202210448536.4A CN114909277B (en) 2022-04-26 2022-04-26 Compressor capable of providing negative pressure function

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102734447A (en) * 2011-03-30 2012-10-17 日立汽车系统株式会社 Electric oil pump
CN104006590A (en) * 2014-05-28 2014-08-27 浙江振圣机电科技有限公司 Portable refrigerant recovery all-in-one machine with vacuum pump
CN104421153A (en) * 2013-09-09 2015-03-18 珠海格力节能环保制冷技术研究中心有限公司 Variable-capacitance compressor with dual pumps in series
CN204646663U (en) * 2015-04-24 2015-09-16 福建雪人股份有限公司 Multiscrew compressor
CN207145207U (en) * 2017-08-08 2018-03-27 威海东兴电子有限公司 Piston type pneumatic compresses and negative pressure all-in-one
CN113638879A (en) * 2021-09-07 2021-11-12 湖南腾智机电有限责任公司 Electromagnetic clutch dual pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102734447A (en) * 2011-03-30 2012-10-17 日立汽车系统株式会社 Electric oil pump
CN104421153A (en) * 2013-09-09 2015-03-18 珠海格力节能环保制冷技术研究中心有限公司 Variable-capacitance compressor with dual pumps in series
CN104006590A (en) * 2014-05-28 2014-08-27 浙江振圣机电科技有限公司 Portable refrigerant recovery all-in-one machine with vacuum pump
CN204646663U (en) * 2015-04-24 2015-09-16 福建雪人股份有限公司 Multiscrew compressor
CN207145207U (en) * 2017-08-08 2018-03-27 威海东兴电子有限公司 Piston type pneumatic compresses and negative pressure all-in-one
CN113638879A (en) * 2021-09-07 2021-11-12 湖南腾智机电有限责任公司 Electromagnetic clutch dual pump

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