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The present invention relates to a compressor comprising a connection pin which enables the lower body and the upper body to be attached to each other.
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Compressors enable the refrigerant fluid to be pressurized and circulated through the circulation pipes in cooling devices. The compressors generally have a lower casing which is attached to the base of the cooling device and an upper casing which is attached to the lower casing so as to cover the lower casing. The compressors comprise a motor group which provides the pressurization of the refrigerant fluid. The motor group is positioned on a lower body and an upper body which are attached onto each other. Upon being placed on top of each other, the lower body and the upper body are attached to each other by means of a bolt-nut connection. Vibrations occurring during the operation of the motor group cause the nut to loosen over time and the compressor to fail. Moreover, special fixtures are developed for mounting the connection members. This causes time loss on the production line and also leads to various issues such as increased labor and raw material costs. To overcome such problems, various improvements are made to the connection members.
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In the state of the art European Patent Application No.
EP4170166A1 , a compressor is disclosed, comprising four mounting pins which are mounted in a rectangular configuration.
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The aim of the present invention is the realization of a compressor having a connection pin which enables the lower body and the upper body to be mounted to each other in a more secure, easier and quicker manner.
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The compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a lower casing; an upper casing which is disposed on the lower casing and which is joined to the lower casing along a peripheral rim; a lower body which is arranged on the lower casing and whereon motor components such as crankshaft and piston are disposed; an upper body which is placed on top of the lower body; at least two channels which are provided on the lower body and the upper body, and which are aligned with each other and extend in the same direction when the upper body is placed on top of the lower body; and at least one connection pin which has a body section suitable for being passed through the channels, a head section located at one end of the body section and a bottom section located at the opposite end of the body section and which is mounted on the lower body and the upper body such that the body section extends through the channels and the lower body and the upper body are compressed between the head section and the bottom section. Thus, the lower body and the upper body are mounted to one another easily and quickly by means of a single connection pin, without the need for nuts or similar connection members.
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In an embodiment of the present invention, the head section comprises at least one arm which is formed in a flexible manner so as to be compressed while the body section is passed through the channels from the head section and to return to the initial shape thereof as the body section pass through the channels and the head section leaves the channels. The arm returns to the initial shape thereof after leaving the channels and can no longer re-enter the channels. Thus, the connection pin is prevented from being removed after being passed through the channels and the lower body and the upper body are enabled to be attached to each other more securely.
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In an embodiment of the present invention, the connection pin comprises a plurality of arms which are positioned on the head section at equal intervals from one another. Thus, a more balanced distribution of stress on the arms is ensured, extending the economic life the connection pin.
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In an embodiment of the present invention, the bottom section has a curved form. Thus, the bottom section presses on the lower body or the upper body more homogeneously, enabling the stress exerted on the bottom section to be more effectively distributed across the entire surface.
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In an embodiment of the present invention, at least one spring is disposed between the lower casing and the lower body, and on the connection pin, there is at least one holding section which extends from the bottom section toward the lower body and whereon the spring is seated. Thus, the spring is enabled to be better gripped and to be mounted more securely without falling off during assembly.
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In an embodiment of the present invention, on the bottom section, there is the holding section having at least one extension of which one end is connected to the bottom section and which has at least one bend at the center thereof such that the other end thereof extends toward the bottom section. Thus, the holding section is enabled to gain increased flexibility so as to better dampen the vibrations generated.
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In an embodiment of the present invention, the holding section comprises at least two extensions which are positioned in mirror symmetry relative to one another. Thus, the holding section is enabled to gain further increased flexibility, ensuring more effective damping of the loads acting on the holding section.
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In another embodiment of the present invention, the bottom section has the same shape as the head section. Thus, the connection pin can be inserted through the channels from either end, providing ease of assembly for the operator.
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In an embodiment of the present invention, at least one depression is provided on the body section. It is ensured that the depression holds oil and releases the same onto the connection pin in a controlled manner and the connection pin is prevented from generating squeaking or noise during the operation of the compressor.
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In an embodiment of the present invention, the head section is manufactured from plastic or composite material. Thus, the head section is enabled to be manufactured with a durable and flexible structure.
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In an embodiment of the present invention, the head section and the body section of the connection pin are manufactured from different materials. The connection pin may be manufactured entirely from a single plastic material, or the body section, the bottom section, and the head section may be manufactured from different materials. For example, while the body section may be manufactured from metal, the bottom and head sections may be manufactured from plastic.
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By means of the present invention, the lower body and the upper body are enabled to be attached to each other more securely and mounted more quickly and easily. Thus, the economic life of the compressor is increased, decreasing production and labor costs.
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The compressor realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
- Figure 1 - is the perspective view of the compressor related to an embodiment of the present invention.
- Figure 2 - is the partial cross-sectional view of the lower body and the upper body related to another embodiment of the present invention.
- Figure 3 - is the sideways cross-sectional view of the connection pin related to an embodiment of the present invention.
- Figure 4 - is the sideways cross-sectional view of the connection pin related to another embodiment of the present invention.
- Figure 5 - is the perspective view of the connection member related to another embodiment of the present invention.
- Figure 6 - is the sideways view of the connection member related to another embodiment of the present invention.
- Figure 7 - is the sideways cross-sectional view of the connection pin related to another embodiment of the present invention.
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The elements illustrated in the figures are numbered as follows:
- 1. Compressor
- 2. Lower casing
- 3. Upper casing
- 4. Peripheral rim
- 5. Lower body
- 6. Upper body
- 7. Channel
- 8. Connection pin
- 9. Body section
- 10. Bottom section
- 11. Holding section
- 12. Extension
- 13. Head section
- 14. Arm
- 15. Spring
- 16. Depression
- 17. Bend
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The compressor (1) is suitable to be used in household appliances, preferably in cooling devices, and comprises a lower casing (2); an upper casing (3) which is disposed on the lower casing (2) and which is joined to the lower casing (2) along a peripheral rim (4); a lower body (5) which is arranged on the lower casing (2) and whereon motor components such as crankshaft and piston are disposed; and an upper body (6) which is placed on top of the lower body (5).
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The compressor (1) of the present invention further comprises at least two channels (7) which are provided on the lower body (5) and the upper body (6), and which are aligned with each other and extend in the same direction when the upper body (6) is placed on top of the lower body (5); and at least one connection pin (8) which has a body section (9) suitable for being passed through the channels (7), a head section (13) located at one end of the body section (9) and a bottom section (10) located at the opposite end of the body section (9) and which is mounted on the lower body (5) and the upper body (6) such that the body section (9) extends through the channels (7) and the lower body (5) and the upper body (6) are compressed between the bottom section (10) and the head section (13). The connection pin (8) is assembled mounted such that the head section (13) thereof is first passed through the channels (7). The head section (13) of the connection pin (8) is inserted first through the channel (7) provided on the lower body (5) and then through the channel (7) provided on the upper body (6). However, it is also possible to mount the connection pin (8) in the opposite direction. After passing through the channels (7), the head section (13) bears against the upper body (6) and the bottom section (10) bears against the lower body (5). In this case, the lower body (5) and the upper body (6) are enabled to be attached to each other quickly and easily. Since an additional fixing member such as a nut is not used, the connection pin (8) is not affected by vibrations generated during the operation of the compressor (1) and continues to operate safely.
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In an embodiment of the present invention, the compressor (1) comprises at least one arm (14 ) which is provided on the head section (13) and which is formed in a flexible manner so as to be compressed while the body section (9) is passed through the channels (7) from the head section (13) and to return to the initial shape thereof as the body section (13) pass through the channels (7) and the head section (13) leaves the channels (7). The arm (14) has the sufficient elasticity to extend outward from the head section (13), compress while being inserted through the channels (7) and to return to the initial shape thereof after leaving the channels (7).
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In an embodiment of the present invention, the connection pin (8) comprises a plurality of arms (14) which are positioned on the head section (13) at equal intervals from one another. The presence of the plurality of arms (14) ensures that lesser force and hence stress acts on each individual arm (14) and that the arms (14) are used without being deformed for a long period of time.
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In an embodiment of the present invention, the connection pin (8) comprises the bottom section (10) having a curved form. The curved form improves the seating of the spring pressing against the bottom section (10) and prevents the same from slipping. Moreover, the curved form enables the bottom section (10) to flex more easily under stress and to better dampen the loads acting thereon.
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In an embodiment of the present invention, the compressor (1) comprises at least one spring (16) which is disposed between the lower casing (2) and the lower body (5), and at least one holding section (11) which is provided on the connection pin (8), which extends from the bottom section (10) toward the lower body (5) and whereon the spring (16) is seated. The holding section (11) enables the spring (16) to be better gripped, prevents the same from slipping during the assembly and enables the same to have greater stability during the operation. Thus, the spring (16) is prevented from slipping during the operation and from being exposed to shearing forces, and the spring (16) is enabled to have a longer economic life.
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In an embodiment of the present invention, the connection pin (8) comprises the holding section (11) disposed on the bottom section (10) and having at least one extension (12) of which one end is connected to the bottom section (10) and which has at least one bend (17) at the center thereof such that the other end thereof extends toward the bottom section (10). The extension (12) located on the holding section (11) is formed by folding at the bend (17) section and the holding section (11) is enabled to have a more flexible structure. Thus, the holding section (11) is enabled to absorb forces acting on the spring (16) more efficiently.
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In an embodiment of the present invention, the connection pin (8) comprises the holding section (11) having at least two extensions (12) which are positioned in mirror symmetry relative to one another. The extensions (12) positioned opposite to each other ensure that the forces acting from different directions are dampened more efficiently.
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In an embodiment of the present invention, the connection pin (8) comprises the bottom section (10) having the same form as the head section (13). In this case, both ends of the connection pin (8) comprise the head section (13). Thus, the connection pin (8) is enabled to be mounted from either direction, regardless of the insertion direction during the assembly.
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In an embodiment of the present invention, the connection pin (8) comprises at least one depression (16) which is provided on the body section (9). The depression (16) is formed as a cavity which holds the oil and enables the same to be released in a controlled manner. Thus, the connection pin (8) is enabled to be lubricated, and the connection pin (8) is prevented from generating squeaking or noise due to the contact with the channels (7) over time.
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In an embodiment of the present invention, the connection pin (8) comprises the head section (13) which is manufactured from plastic or composite material. In this case, the composite material may be a composite material manufactured by using two different plastic materials, a plastic and a metal, or glass-carbon fibers and epoxy. If manufactured from plastic or composite material, the head section (13) has the sufficient flexibility and strength.
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In an embodiment of the present invention, the compressor (1) comprises the connection pin (8) of which the head section (13) and the body section (9) are manufactured from different materials. For example, the body section (9) is manufactured from metal, while the head section (13) is manufactured from plastic. In this case, the connection pin (8) is enabled to have the necessary properties required for each region and have an increased economic life.
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By means of the present invention, the lower body (5) and the upper body (6) are enabled to be mounted to each other in a more secure, simple and quick manner. Thus, the production cost of the compressor (1) is decreased and the operation performance thereof is increased.