JPH0311427Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a vibrating compressor, in particular, a compressor body incorporating a compressor driven by a so-called swing motor, which has springs on at least one end face in the longitudinal direction. In a vibrating compressor configured to be elastically supported by an elastic member such as, for example, a projection provided on an end surface of the compressor body in order to prevent undesired rocking of the compressor body. This vibratory compressor is provided with a shock absorber that elastically slides on the side surface of the shock absorber, and a wear-resistant sliding plate is fixed to the sliding surface of the shock absorber to prevent wear and tear on the shock absorber. It is something.

(Prior Art and Problems to be Solved by the Present Invention) Conventionally, a vibrating compressor used as a compressor for a car refrigerator, etc. ), the compressor main body 3, which has a built-in drive mechanism including a drive coil 16, a compression mechanism consisting of a piston 18, a cylinder part 19, etc., is elastically operated by springs 4 and 5 at the top and bottom of the figure. It is configured to be supported and installed in the closed container 2. Therefore, since the compressor main body 3 is elastically supported by the springs 4 and 5, it may swing undesirably due to an external impact, or if the vibrating compressor is installed horizontally. In this case, the state of support by the springs 4 and 5 becomes unstable due to gravity. As a countermeasure for this, protrusions 7b', 23' are provided on both end surfaces of the compressor main body 3, and the protrusions 7b',
Undesired rocking of the compressor main body 3 is prevented by providing an annular buffer member (for example, made of an elastic material such as rubber) on which the side surface of the compressor 23' slides. is taken into consideration.

However, in the above measures, since the protrusion of the compressor body directly slides on the buffer member, there is an undesirable problem that the buffer member is worn out.

(Means for Solving the Problems) The purpose of the present invention is to solve the above-mentioned problems. Therefore, the vibratory compressor of the present invention has a cylindrical yoke with one end closed and the other end closed. A permanent magnet and a pole piece forming an annular gap between the permanent magnet and the permanent magnet are fixedly disposed in a casing closed with a member, and the gap is energized with alternating power. a compressor main body in which a drive coil is disposed so as to be movable in the axial direction of the casing, and a piston that is substantially integral with the drive coil is slidably engaged with a cylinder portion provided in the closing member;
A vibratory compressor, comprising: a container for storing the compressor main body, and configured such that the compressor main body is supported and held by an elastic member on at least one end surface in the longitudinal direction within the container. A projection is provided on the end face of the compressor body, and the side surface of the projection is formed into an annular shape by a sliding plate made of a wear-resistant material and an elastic body, and the sliding plate is formed on the inner periphery. The present invention is characterized in that a buffer device having a buffer member fixed on a surface thereof is provided on the inner wall of the container, and the protrusion portion is configured to slide within the sliding plate of the buffer device. This will be explained below with reference to the drawings.

(Embodiment) FIG. 1 is an overall longitudinal cross-sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged view for explaining the shock absorber according to the present invention.

As shown in the figure, the vibratory compressor 1 of the present invention includes a compressor main body 3 in a cylindrical closed container 2 constituted by a cylinder 2a and lid plates 2b and 2c that close both open ends of the cylinder 2a. It is elastically supported by springs 4 and 5.

The casing 6 of the compressor main body 3 is constructed by fixing a closing member 8 to the other end, that is, the lower end of a yoke 7, in which one end, that is, the upper end, of a cylindrical portion 7a is closed by a pot-shaped bottom 7b. The bottom 7b is formed into a pot shape by, for example, forging, and is formed by turning, for example, into a stepped portion 7c that perpendicularly intersects the inner circumferential surface of the cylindrical portion 7a, and a fitting portion 7c that fits into the inner circumferential surface. A portion 7d is formed. Then, as shown in the figure, the bottom 7b and the cylindrical part 7a are fixed (for example, welded) by fitting the fitting part 7d into the inner circumferential surface of the cylindrical part 7a, thereby attaching the yoke to the yoke. 7 is configured. Further, the closing member 8 is basically formed in the shape of a thick disk, and is fitted to the lower end of the yoke 7. A mounting plate 9 formed in the shape of a ring-shaped disk with a part cut out is attached to the inner circumferential surface of the lower end of the yoke 7, and a plurality of mounting plates 9 are mounted on the inner circumferential surface of the lower end of the yoke 7. The closing member 8 is fixed to the lower end of the yoke 7 by screwing the screw member 10 onto the mounting plate 9 and tightening it.

Inside the casing 6, there is an arc-shaped permanent magnet 1.
1 is fixed so as to be in contact with the inner circumferential surface of the yoke 7 and the stepped portion 7c. Also, in bottom 7b,
A pole piece 13 for forming an annular gap 14 with the permanent magnet 11 is fixed by a screw member 15 via a permanent magnet (alnico magnet) 12.

A drive coil 16 is disposed in the gap 14 so as to be able to reciprocate in the axial direction of the casing 6, that is, in the vertical direction. This drive coil 16 is wound around a support member 17, and the support member 17 is fixed to a cylindrical piston 18 that is concentric with the axis of the casing 6.
Therefore, the drive coil 16 and the piston 18 are substantially integrated. This piston 18 is
The closing member 8 is inserted into the casing 6.
The cylinder part 19 is integrally provided with the cylinder part 19. Also, the pole piece 13 and the support member 17
A resonance spring 20 is interposed between them, and a resonance spring 21 is also interposed between the support member 17 and the closing member 8. Therefore, the piston 18 is supported by a pair of upper and lower resonance springs 20 and 21. Furthermore, a suction valve 22 is provided at the lower end of the piston 18.

A cap-shaped lid 23 is fixed to the lower part of the closing member 8 by bolts (not shown). This cap-shaped lid 23
A discharge valve chamber 25 located further below the cylinder chamber 24 located below the piston 18 in the cylinder portion 19 is provided between the closing member 8 and the hole provided in the closing member 8. shape lid 2
3, the high pressure chamber 26 and the low pressure chamber 27 are closed.
can be made. Further, a communication passage 28 that communicates between the discharge valve chamber 25 and the high pressure chamber 26 is bored in the cap-shaped lid 23 . Further, a discharge pipe 29 is provided which communicates with the high pressure chamber 26, and the discharge pipe 29 is connected to the cover plate 2c.
It passes through the capacitor and is drawn out to the outside, and is connected to, for example, a capacitor of a refrigerator (not shown). Furthermore, the low pressure refrigerant discharged from the condenser is
through a suction pipe 30a that passes through c, a suction pipe 30b that passes through the cap-shaped lid 23 and communicates with the low pressure chamber 27, and a suction pipe 30c that communicates between the low pressure chamber 27 and the inside of the casing 6. Casing 6
That is, it is introduced into the compressor main body 3.

The discharge valve chamber 25 includes a discharge valve 32 that can be seated on a valve seat 31 provided on the closing member 8 at the lower end of the cylinder chamber 24, and a pressure spring 33 that urges the discharge valve 32 in a direction to seat on the valve seat 31. is stored.

Further, a power supply terminal 34a is attached to the cover plate 2c. Connection members 34b and 34c are provided to connect the power supply terminal 34a and the resonance spring 21. Further, the drive coil 16 and the resonance spring 21 are connected by a lead wire 35a, and the drive coil 16 and the resonance spring 20 are connected by a lead wire 35b. Therefore, one end of the drive coil 16 is connected to the power supply terminal 34a via the lead wire 35a, the resonant spring 21, and the connecting members 34c, 34b, and the other end is connected to the lead wire 35b, the resonant spring 20, and the pole piece. 1
3. Connected to the closed container 2 via the screw member 15, the bottom 7b, and the spring 4. Therefore, by applying an alternating voltage between the power supply terminal 34a and the closed container 2, it is possible to supply an alternating current to the drive coil 16.

Furthermore, in the present invention, protrusions 7b' and 23' are formed on the bottom 7b and the cap-shaped lid 23 that constitute both ends of the compressor main body 3, and
The projections 7b' and 2 are provided on the cover plates 2b and 2c.
Buffer devices 36 and 37 are installed at positions corresponding to 3'. As mentioned above, since the compressor main body 3 is elastically supported by the springs 4 and 5, it may swing undesirably due to an external impact, or if the vibrating compressor 1 is installed horizontally. In this case, there is an undesirable problem in that the state of support by the springs 4 and 5 becomes unstable due to gravity. The above-mentioned shock absorbers 36 and 37 are installed to solve the above-mentioned undesirable problem. The buffer devices 36 and 37 will be explained below with reference to FIG. Note that Figure 2 is the same as Figure 1.
Although it is an enlarged view of the illustrated shock absorber 37, the cover plate 2b
The shock absorber 36 installed in is also configured in the same manner.

As shown in FIG. 2, the shock absorber 37,
Reference numeral 36 denotes buffer members 37a, 36a formed in a cylindrical shape from an elastic body such as rubber, and the buffer member 3.
The protrusions 23', 7a and 36a are formed of a wear-resistant material such as a spring plate or a nylon sheet, and are disposed on the inner peripheral surfaces of the protrusions 23' and 36a.
It is constituted by sliding plates 37b, 36b on which the side surfaces of 7b' slide, and casings 37c, 36c. The shock absorbers 37 and 36 have side surfaces of the protrusions 23' and 7b' that are connected to the sliding plates 37b and 36, respectively.
It is fixed to the cover plates 2c and 2b so as to be slidable on the cover plate 36b.

As explained above, in the vibrating compressor 1 of the present invention in which the shock absorbers 37 and 36 are installed, the compressor body 3 is elastically supported by the springs 4 and 5, and the protrusions 7b' and 23 ' is guided by the shock absorbers 36 and 37, thereby preventing the above-mentioned undesired rocking and providing stability. Furthermore, since the shock absorber according to the present invention is provided with a sliding plate having wear resistance, it is possible to prevent the shock absorber from being worn out. In addition, the protrusion 2
3', 7b' between the casings 37c, 36c (arrow A in the figure).
Since it is designed to be larger than the opposing gap (arrow B in the figure) of the projections 23', 7
The tip of b' does not hit the casings 37c, 36c.

Next, the operation of the illustrated embodiment will be explained.
By passing an alternating current through the drive coil 16, the piston 18 vibrates up and down together with the drive coil 16 depending on the polarity of the alternating current. Moreover, the vertical vibration of the piston 18 is amplified by the pair of upper and lower resonance springs 20 and 21. Due to the amplified vertical vibration of the piston 18, the suction valve 22 and the discharge valve 32 perform a pumping action, and the fluid such as the refrigerant introduced into the container 2 is pumped through the suction pipes 30a, 30b, the low pressure chamber 27, and the suction pipe 30c. flows into the casing 6, passes through the piston 18, the suction valve 22, the cylinder chamber 24, and the discharge valve 32, and then flows into the discharge valve chamber 25.
The liquid flows into the refrigerator, and is further discharged to a refrigerator condenser or the like via the communication passage 28, high pressure chamber 26, and discharge pipe 29.

(Effects of the invention) As explained above, according to the invention, it is not only possible to prevent undesired rocking of the compressor main body, but also to prevent undesired rocking of the compressor body. In the shock absorbing device, by providing a wear-resistant sliding plate in the portion that slides on the compressor main body, wear and tear on the shock absorbing member can be prevented.

[Brief explanation of the drawing]

FIG. 1 is an overall vertical cross-sectional view showing an embodiment of the present invention, and FIG. 2 is an enlarged view of an embodiment of the shock absorber according to the present invention. In the figure, 1 is a vibration compressor, 2 is a closed container, 3 is a compressor main body, 4 and 5 are springs, 6 is a casing,
7 is a yoke, 7a is a bottom, 7b' and 23' are projections, 8 is a closing member, 16 is a drive coil, 18
is a piston, 19 is a cylinder part, 36 and 37
3 is a buffer device, 36a and 37a are buffer members, 3
6b and 37b represent sliding plates.

Claims (1)

[Claims for Utility Model Registration] A permanent magnet and a pole piece forming an annular gap between the permanent magnet and the permanent magnet in a casing consisting of a cylindrical yoke with one end closed and the other end closed with a closing member. are fixedly disposed, a drive coil energized by alternating power is disposed in the gap so as to be movable in the axial direction of the casing, and a piston substantially integral with the drive coil is disposed in the closing member. The compressor main body is provided with a compressor main body that is slidably engaged with a cylinder portion that is attached to the compressor, and a container that houses the compressor main body, and the compressor main body is supported by an elastic member on at least one end surface in the longitudinal direction within the container. In a vibrating compressor configured to be held in place, the compressor main body is provided with a protrusion on the end face, and the side surface of the protrusion is made of a sliding plate made of a wear-resistant material and an elastic body on which the side surface slides. A buffer device having a buffer member formed in an annular shape and having the sliding plate fixed to the inner peripheral surface thereof is provided on the inner wall of the container, and the protrusion slides within the sliding plate of the buffer device. A vibratory compressor characterized by being configured to.