TW486544B - Sealed type compressor - Google Patents

Abstract

An attempt has been made to prevent damage of a hermetic terminal and to improve pressure-resistance strength of the welded joint of connecting pipes in order to provide a sealed housing 4 having a pressure-resistance strength high enough to allow use of a high-pressure alternative refrigerant. For this purpose, ring-shaped metal members 15 and 23 are welded to the outer peripheries of the welded joints of a hermetic terminal 8 to be hermetically welded to an upper end plate 1 of a sealed housing 4 and a discharge pipe 10. As a result, in the event the internal pressure of the sealed housing 4 increases and the upper end plate 1 deforms in the shape of a sphere, the ring-shaped metal member 15 on the outer periphery of the welded joint of the hermetic terminal 8 suppresses the deformation of the hermetic terminal 8 thus preventing damage of a glass seal 12 of the hermetic terminal 8, and the ring-shaped metal member 23 on the outer periphery of the welded joint of the discharge pipe 10 decreases the tensile stress produced in the welded joint of the discharge pipe 10 thus improving the pressure-resistance strength of the connecting section of the discharge pipe 10 thereby providing a sealed type compressor having a sealed housing 4 with a sufficiently high pressure-resistance strength.

Description

486544 -A7 B7 V. Description of the Invention (Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. This invention relates to a hermetic compressor used as a refrigerant waste shrinking machine or air compressor for refrigeration, east air conditioning, etc. As shown in FIG. 20, this cold cicada compressor has a compression mechanism 105 and a drive mechanism inside a sealed container 104 composed of an upper end plate 101, a body portion 102, and a lower end plate 103. The compression mechanism 105 has an electric motor 106. The electric power of the electric motor 106 is sealed by a cup-shaped metal body 107 which is welded to a sealed container 104, and has a conductive pin 109 insulated with a glass seal 108. The dense terminal 110 is supplied from an external power source (not shown). The refrigerant is sucked into a compression mechanism 105 from a suction pipe 111 connected to a refrigeration cycle (not shown), is compressed, becomes high pressure, and is discharged into a sealed container 104. Return to the refrigerating cycle (not shown) from the discharge pipe 112. Therefore, the sealed container of this compressor is filled with a high-pressure refrigerant. As the refrigerant of this compressor, HCFC22 has been conventionally used, but it is possible due to atmospheric emissions. It will cause destruction of the ozone layer, so it will definitely be abolished in the future. As alternative refrigerants for HCFC22, several types of HFC refrigerants can be listed, and HFC125, HFC32, HFC134a mixed refrigerant R407C and HFC125 and HFC32 mixed refrigerant R410A are the most representative. For R407C, the discharge pressure is approximately the same as R22, and for R410A, the discharge pressure is about 1.7 times that of R22. Here, when a refrigerant of such a large discharge pressure is used to seal the container itself, the discharge pressure is applied. In the case of a high-pressure hermetic compressor, it is necessary to increase the pressure resistance of the sealed container 104. However, in the conventional structure described above, as the pressure inside the sealed container 104 becomes higher, the upper and lower end plates 101 and 103 are increased. It swells outward and slowly turns into a sphere. Please read the back, read the legal meanings on this page, and then m. The binding page on this page is again applicable to the Chinese National Standard (CNS). (210X29.) 7 mm) 4 486544

Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs

Yu gas pine and 'child 110' are welded and fixed on the flat part of the upper end plate 101. Therefore, due to the deformation, the cup-shaped metal body 107 of the airtight terminal 110 is stressed and deformed, and the glass seal 108 is broken, resulting in The leakage of high temperature and high pressure refrigerant to the outside. In the conventional structure, this part is the weakest compressive strength. To increase the compressive strength of Nanxiong and the sealed container, it is necessary to increase the compressive strength of this part. In addition, the sealed container 104, the suction pipe 111, the discharge pipe 1 and 2, etc., that is, the joint part with the refrigerant connection pipe, are subjected to tensile stress due to the high pressure inside the sealed container 104, so the airtight terminal 11 is The second part β with weaker compressive strength, the purpose of the present invention is to solve the above-mentioned shortcomings, to provide a glass seal that can prevent the airtight terminal from cracking, and improve the joint between the sealed container and the refrigerant connection pipe. It is a sealed container with the compressive strength of high pressure alternative refrigerant. For this reason, it turned out to have a structure in which the hermetically sealed terminal of the hermetic compressor and the welded part of the refrigerant connection pipe are sealed, and the annular metal body is sealed. Improve the structure and improve the welding performance of the sealed container, and weld it to the sealed container, thereby deforming the sealed container in which the airtight terminal and the refrigerant connection pipe are deformed even if the sealed container is under high pressure. A rigid member such as a ring-shaped metal body combined with the outer periphery of the tandem portion of the airtight terminal 'in the airtight terminal' can suppress the deformation of the airtight terminal and prevent the glass seal of the airtight terminal from cracking. The pipe order and the ring-shaped metal body combined with the tandem joint can reduce the tensile stress generated by the tandem joint, thereby improving the bonding strength of the connecting pipe and the resistance of the sealed container.

Standards for this paper (CNS) (210 X 29.7¾

Compressive strength. Use two: In the present invention, inside the sealed container, a motor and a motor-driven I-reduction mechanism are provided. In order to supply the electric power of the motor from the outside of the sealed container, the sealed container (including the end plate and flat plate) is sealed and welded. The airtight terminal is composed of: a cup-shaped metal body, a conductive lock, and a glass sealing portion insulated from the conductive metal pin by the cup-shaped metal body, and the seal is surrounded by the seal. The welded part of the container and the air-tight terminal improves the deformation (resistance) of the seal relative to the seal. In addition, there are 8 kinds of members in the present invention that improve the deformation rigidity of the seal capacity H. The material is annular. A metal body, and the thickness of the ring metal body is made larger than the thickness of the hermetically sealed container by ^ +-, further, preferably, the ring metal body is on the sealed container. The connection part is formed into an arc shape, so that the deformation of the sealed container of the above-mentioned metal_connection part can effectively suppress the deformation of the airtight terminal. In addition, in the present invention, the expected gold is> 1 Those who are expected to be connected to the inside and inside of the house, because of It is connected to the inside, so it will not hinder the winding of the protective cover of the air-tight terminal and the power cord. The outer 'towel of the present invention' connects the metal-like material to the sealed exterior. And it is better to weld integrally with the protective frame of the airtight terminal, so that it will not prevent the airtight terminal from being welded to the protective container body of the sealed container, so that it is easy to mate. In addition, in the present invention, when The ring-shaped metal body advances on the sealed container = at the time of welding 'by setting a linear big riser at the welded joint with the sealed container < contact the smaller width ring as it is, 544, V. Description of the invention (4) The surface can be welded and fixed to the end plate of the sealed container, etc., and can be intentionally = on the plate 4, to seal the container. Inhibit the deformation of the airtight terminal. "The width of the expanded metal body must be narrow. The hole must be made." "Because the inner shaft is provided with a flange on the sealed container, the inner shaft is sealed and the airtight terminal is welded. The inner edge of the dense terminal is difficult to change due to the inner edge flanging. As a result, the glass seal can be prevented from cracking. If the flange is sealed at the sealing capacity, the line is sealed and welded. If the outside of the sealed container is closed, the deformation force that affects the seal is greater than that formed at Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs

In addition, in the present invention, once the gas-tight terminal is hermetically welded to a steel plate, hermetically welded at the end plate of the sealed container, etc. The end plates and other parts of the sealed container are deformed. However, Yumiko ’s King of Fighters has a large rigidity, so it can = deform the airtight terminal and prevent the glass seal σ of the airtight terminal from breaking. Six: resistance = strength . When the thickness of the steel plate used to seal the airtight terminal is thicker than the thickness of the seal: the board, etc.), and when the length of the steel plate and the sealed volume is longer than the thickness of the sealed container, the airtight terminal can be more suppressed. Deformation and the effect of preventing the glass seal from breaking. The present invention is particularly effective in that the hermetic compressor of the terminal is sealed on the material of the terminal by the casing portion and the end plate portion sealing the opening of the casing portion. ^ ^ Ί Order ------ Line ------ (Please read the precautions on the back before JH page) ^ .I! 1. In addition, in the present invention, the inside and outside of the sealed container even

This paper is applicable to scale 5. Description of the invention (5) The connection part of the connection pipe (exhaust pipe and suction pipe) that uses the refrigerant is made into a structure with improved compressive strength, and a ring-shaped metal body is welded on the periphery of the welding part of the connection pipe In order to reduce the tensile stress that deforms the welded part of the connecting pipe due to the internal pressure of the sealed container, thereby improving the financial pressure strength of the connecting part of the connecting pipe. And it is better to weld the connecting pipe into a flange with a flange on the inside of the sealed container, thereby further improving the compressive strength. In addition, since the connecting pipe is obtained by ordinary copper furnace welding, the ring metal body near t is also easily assembled when furnace welding is performed at the same time. In addition, in the present invention, a hole is formed in the flat portion of the sealed container to connect the sealed volume H㈣ to the outside, the same or smaller than the inside diameter of the connection pipe for entering and exiting the refrigerant, and the outside of the sealed container corresponding to the hole. On the surface, the end surface of the connecting pipe is fixedly connected. Therefore, when the inside of the sealed container is subjected to high pressure, since the position of the welded joint is different from that of a known person, it does not receive large tensile stress here. Therefore, 'an increase in the pressure resistance of the sealed container can be obtained. In addition, 'expanding the end face of the connecting pipe fixed to the sealed container' and increasing the hole diameter of the sealed container can reduce the resistance of the refrigerant flow. ~ In addition, in the present invention, the connection pipe is welded by diffusion welding on the ㈣ container. Compared with welding methods such as furnace welding, the strength of the pipe can be assured because X rises less during welding. ^ In addition, in the present invention, in the peripheral portion of the hole of the sealed container, a recess formed with the outer cymbal drum of the tube to be inserted is inserted into the end of the connection tube to be fixed. The end surface of the connection tube and the outer peripheral portion of the end Welding 丄 = 'Invention description (Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, so that when the internal pressure of the sealed container is high, the welding joint has 2 parts in different directions, which is not easy. Damage occurs, which can increase the compressive strength of the loosely sealed container. When the connection pipe is subjected to a large force (tensile force, etc.), it can have sufficient strength. In addition, as described above, the present invention The case portion and the end plate portion that seals the opening of the case portion constitute the sealed container. When the airtight terminal and the connecting pipe are welded to the end plate portion, when the sealed container is subjected to internal pressure, Due to the large deformation of the end plate Therefore, the structure of the welding portion described above can be more effective. In addition, in the present invention, it is more effective to use ^^^ of a high-pressure refrigerant or a mixed refrigerant containing the refrigerant as the refrigerant. Fig. 1 illustrates the implementation of the present invention. A longitudinal sectional view of a hermetic compressor of Example 1; FIG. 2 is a longitudinal sectional view of an airtight terminal portion; FIG. 3 is a sectional view of a ring-shaped metal body; FIG. 4 is a longitudinal sectional view of another form 1 of a milk selection terminal portion; Fig. 5 is a longitudinal sectional view of another form 2 of the terminal section; Fig. 6 is a longitudinal sectional view of another form 3 of the terminal section; Fig. 7 is a longitudinal sectional view of another form 4 of the terminal section; 8 Fig. 9 is a longitudinal sectional view of an airtight terminal part of Example 2; Fig. 9 is a longitudinal sectional view of another form 1 of a gas terminal; Fig. 10 is a longitudinal sectional view of another and outer form 2 of a gas terminal; The figure is a longitudinal sectional view of an air-tight terminal portion of Embodiment 3; FIG. 12 is a longitudinal sectional view of a connecting pipe portion of Embodiment 4; FIG. 13 is a longitudinal sectional view of another form of the connecting pipe portion; CNS) A4 Greetings (210X297) Please, Read the back. Notes on the wide side and then the binding on this page> line 486544 A7 B7 V. Description of the invention (7) Figure 14 is a longitudinal section view of another form 2 of the connecting pipe section; Figure 15 is another section of the connecting pipe section A longitudinal sectional view of Embodiment 3; FIG. 16 is a longitudinal sectional view of Embodiment 4 of a connecting pipe portion; FIG. 17 is a longitudinal sectional view of Embodiment 5 of a connecting pipe portion; FIG. 18 is a longitudinal sectional view of a connecting pipe portion of Embodiment 5; Fig. 19 is a longitudinal sectional view of a connecting pipe portion of Embodiment 6; Fig. 20 is a longitudinal sectional view of a conventional hermetic compressor. An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) Fig. 1 is A longitudinal sectional view of the hermetic compressor according to the first embodiment of the present invention. As shown in the figure, the hermetic compressor is a sealed container 4 composed of an upper end plate i, a cylindrical housing portion 2 and a lower end plate 3. The compression mechanism 5 and the electric motor 6 for driving the compression mechanism 5 are arranged inside. Although the compression mechanism 5 is not shown in detail, it may be a rotary type or a scroll type. The electric power of the motor 6 is supplied from an external power source (not shown) via a hermetically sealed terminal 8 which is welded to the hole 7 opened in the upper end plate 丨 of the sealed container 4. The central government bureau of the Ministry of Economic Affairs, the employee consumer cooperative, printed the refrigerant from the inlet connected to the refrigeration cycle (not shown) and the inlet pipe 9 (connecting pipe). It was compressed by the compression mechanism 5 to high pressure and discharged into the sealed container 4, and then discharged from The tube 10 (connecting tube) is returned to the refrigeration cycle (not shown). Therefore, in this embodiment, the inside of the 'sealed container 4 is filled with a high-pressure refrigerant, and has a structure of a so-called high-pressure compressor. /, Figure 2 is an enlarged view of the 8 air-tight terminals of the hermetic compressor shown in Figure 1. The masculine terminal 8 has a conductive pin 13 insulated with a glass seal on the upper surface of the cup-shaped metal body 11. The lower part of the cup-shaped metal body η has an enlarged

5. Description of the invention (8) The skirt-like skirt portion 14 is used in the hole 7 opened in the flat portion of the upper end plate. The helium skirt σρ 14 is subjected to sealing welding. On the outer periphery of the skirt portion 14 of the airtight terminal 8 inside the sealed container 4, a ring-shaped metal body 5 which is also a member that increases the rigidity of the sealed container 4 (the rigidity of the deformed flat portion) is welded. The material of the% -shaped metal body 15 is a general steel material, and its thickness is made thicker than 1/3 of the plate thickness of the upper end plate 1. In the present embodiment, specifically, the thickness of the end plate 1 of the sealed valley device 4 made of steel is 3 mm to 4 mm, and the annular metal body is selected to be approximately 3.5 mm to 5 mm. The ring width of the ring-shaped metal body 15 is selected from 2 mm to 4 mm. In addition, the inner diameter is made larger than the outer diameter of the skirt portion 14 of the airtight terminal 8. The following describes the welding and assembly method printed by the ring-shaped metal body 15 and the air-tight terminal 8 on the upper end plate. A hole 7 slightly larger than the outer diameter of the cup-shaped metal body 11 is provided in the arrangement portion of the air-tight terminal 8 on the upper end plate, that is, on the surface (flat portion) 16 which is made flatter with a higher degree of accuracy to the south. The annular metal body 15 is fixed to the outer periphery of the hole 7 by contact welding. In general contact welding, a protruding portion is provided at the welding portion so that the current is concentrated to perform welding. In the case of the present embodiment, in the contact welding provided with the protruding portion, the welding portion is spot-shaped and is relatively opposed to the upper part of the sealed container 4 For the deformation of the end plate 丨, the ring-shaped metal body 15 does not suppress the deformation, so it is not used. Therefore, in the present invention, the surface 17 of the ring-shaped metal body 15 that is in contact with the upper end plate 丨 is made into a flatness with high accuracy, so that it evenly contacts the flat portion 16 of the upper end plate, and then the current is turned on. Perform contact welding. In this case, although the greater the ring width, the greater the rigidity, but the current density does not increase, so the entire surface cannot be welded equally. Therefore, 2mm to 4mm shown above is appropriate. If this method is used for welding, 11 paper sizes are applicable to Chinese National Standard (CNS) A4 Zhuge (210X29.7 mm) 486544 A7 B.7 V. Description of the invention (9) 'The welding part is arc-shaped, relative When the upper end plate 1 is deformed, the ring-shaped metal body 15 produces and suppresses the deformation. When the width of the ring-shaped metal body 15 is large and welding is performed without excessive current, as shown in Fig. 3, a linear protrusion 18 is provided on the tip 17 of the ring-shaped metal body 15. Generally, the linear protrusions 18 are provided around the entire circumference, but they may be formed into a circular arc shape of 3 divisions and 4 divisions. The pressure resistance evaluation of the hermetic container 4 of the hermetic compressor of this embodiment will be described below. The pressure resistance of the sealed container of the refrigerant compressor is generally expected to not cause damage when it is subjected to 3 to 5 times the design pressure (the highest pressure during operation) (the national standards and laws are different). In the sealing of this embodiment, when the inside of the container 4 is gradually subjected to a hydrostatic pressure of 3 to 5 times the design pressure, the sealed container 4 gradually expands, and in particular, the upper end plate swells in a spherical shape. In the case of a ring-shaped metal body 15, the skirt portion 14 of the gas Φ terminal 8 welded to the flat portion μ also becomes a part of the spherical surface and is pressed inward with strong force. Due to this force and internal hydrostatic pressure, the glass seal 12 portion It also wants to become spherical in a shape that expands outward, so that a large force is applied to the sealing glass, and the glass breaks and leaks water. However, in this embodiment, the flatness of the hermetically sealed container 4 to which the airtight terminal 8 is welded is flat. Although the portion 16 (upper end plate 丨) is to be deformed in a spherical shape, the ring-shaped metal body 15 is welded and fixed to the flat portion 16 of the sealed container 4. Therefore, the effect of suppressing the deformation is suppressed, and the airtight terminal 8 is suppressed. 14 skirt The pressure is pushed inward to prevent the glass seal 12 from breaking. Therefore, a high pressure refrigerant containing H41032 such as R410A can be used to achieve a sealed container with sufficient compressive strength. In addition, in the above description, contact welding was used to explain Welding method, but this paper size applies Chinese National Standard (CNS) A4 Zhuge (210X; 297 mm) (Please read the precautions on the back before this page) Printed by the Employees' Cooperative of the Central Bureau of the Ministry of Economic Affairs, Consumer Cooperative 486544 A7 ________ B.7 V. Description of the invention (10) The arc-shaped furnace welding method can also be used to weld the annular metal body 15 and the flat portion 16 of the sealed container 4 In addition, the annular metal body 5 is not a complete circular ring, and even if it is partially opened or a plurality of arcuate metal bodies are arranged around the welding portion of the airtight terminal 8, the sealed container 4 can be deformed and rigidity can be improved. In order to prevent the deformation of the sealed container 4 and a large force affecting the glass seal 12 of the airtight terminal 8, the length of the welded portion is best. At least 1/4 of the entire circumference, it is preferable that the member for strengthening rigidity is at least 2/3 of the entire circumference of the welding portion of the airtight terminal 8. In the airtight terminal of the above embodiment, the ring-shaped metal body 15 is welded. Inside the sealed container 4 (upper end plate 丨), but as shown in Fig. 4, it can also be welded to the outside of the sealed container 4. At this time, welding of the ring-shaped metal body 15 and the airtight terminal 8 is relatively easy In addition, as shown in FIG. 5, the protective frame 19 in which the air-tight terminal 8 is generally arranged on the outside of the container 4 to be sealed and welded integrally with it is easy to assemble. As shown in Figs. 6 and 7, the annular metal body 15 & having an inner edge flanging may also be used. In addition, the materials of the annular metal bodies 15 and 15a are described with general steel materials. If high tension steel materials are used, The effect of rigidity is greater. (Embodiment 2) Figures 8 to 10 show an airtight terminal portion according to a second embodiment of the present invention. As shown in Figure 8, pull at the upper end! The upper hole 7 faces the inside of the sealed container 4 and forms an inner edge flange portion 20. The end of the inner edge flanging portion 20 is processed into a flat surface. Here, the skirt μ of the airtight terminal 8 is welded and fixed. In this embodiment, when the internal pressure of the sealed container 4 rises, please read the precautions on the back first and then this page.

4 ^ 6544 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -A7 -_ B7 V. Description of the invention (11) The sealed container 4 expands gradually, and the upper end plate 丨 expands spherically. However, the rigidity of the inner flange portion 20 is increased, and the deformation of the inner portion is suppressed, thereby preventing the glass seal 12 of the airtight terminal 8 from being broken. In addition, in this embodiment, since the airtight terminal 8 can be welded even if the outer peripheral portion of the hole 7 is spherical, the upper end plate 丨 is less deformed and the compressive strength of the upper end plate 丨 is improved. In addition, compared with the welding of the annular metal bodies 15 and 15a, the price can be reduced. In addition, the airtight terminal shown in FIG. 9 is configured such that the above-mentioned inner edge flange portion 20 faces the outside of the sealed container 4 (the upper end plate 丨), and is the same as the case of facing the inside, the peripheral edge of the airtight terminal 8 The rigidity of the portion is enhanced by the inner edge flanging portion 20, which is difficult to deform, and can prevent the glass seal 12 from cracking, and also improves the compressive strength. When the inner edge flange portion 20 is formed on the outer side, the deformation force affecting the glass seal 12 is smaller than when the inner side is formed on the inner side. However, if the plane of the basic portion of the flange portion of the inner edge cannot be correctly processed, it is difficult to weld the airtight terminal 8 to it. In addition, the hermetic terminal shown in Fig. 10 has a structure in which a ring-shaped metal body 15a is welded to the outer periphery of the inner edge flange portion 20 shown in Fig. 9 and Fig. 9, thereby further improving the rigidity. (Embodiment 3) FIG. 11 shows an airtight terminal portion according to Embodiment 3 of the present invention. The air-tight terminal 8 is hermetically welded to a ring-shaped steel flat plate 21. The plate has a thickness greater than that of the upper end plate 丨 of the sealed container 4. The flat plate 21 is welded to the upper end plate 丨 with the overlapping portion 22. The length of this overlapping portion 22 is an overlapping margin which is longer than the thickness of the upper end plate 1. When the overlapping portion 22 is large

(Please read the precautions on the back before mr this page).

， 1T-线-ό) 44 5. The invention description (l2) printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs' If the inner side 22a and the outer side 22b of the overlapping end of the flat plate 21 and the upper end plate 1 are welded, It can further increase the rigidity. In this embodiment, when the internal pressure of the sealed container 4 rises, the sealed container 4 gradually expands, and in particular, the upper end plate 丨 expands spherically. However, since the overlapping portion 22 of the ring-shaped steel flat plate 21 and the upper end plate i is welded and fixed, the plate thickness becomes thicker and the rigidity increases, thereby suppressing the deformation of the inner portion and preventing the glass of the airtight terminal 8 Rupture of the seal 12. Therefore, a sealed container 4 having a sufficient compressive strength can be obtained for a high-pressure refrigerant containing HFC32 such as R410A. In addition, when the thickness of the flat plate 21 is not thicker than the thickness of the upper end plate 1, the flat plate 21 itself is deformed, so that the effect of preventing the glass seal 12 of the airtight terminal 8 from being broken cannot be fully exerted. In addition, when the overlapping portion 22 is small, the portion is bent, so that the effect of preventing the glass seal 12 of the airtight terminal 8 from being broken cannot be fully exhibited. The length of this overlapping portion 22 must be longer than the thickness of the upper end plate 1. The upper end plate 1 and the flat plate 21 have the same effect regardless of which one is welded to the inside. (Embodiment 4) Figures 12 to 17 show a connection pipe section for entering and exiting a refrigerant according to a fourth embodiment of the present invention. As shown in Fig. 12, a structure in which a discharge pipe 10, which is one of the connection pipes for entering and exiting the refrigerant from the sealed container 4, is welded and fixed to the upper end plate 1 and a ring-shaped metal body 23 is welded to the outer periphery of the welding portion. When pressure is applied inside the sealed container 4, the upper end plate 1 becomes spherical. When there is no ring-shaped metal body 23, it should be stretched at the furnace welding part 24 connecting the discharge pipe 10 and the hole of the upper end plate 1 (please read the precautions on the back first, and then this page) 〇 ^ 44 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, A7 ^ __ B7_— V. Description of the invention (13) The force is concentrated and cracked, but in this structure, even if the upper end plate becomes spherical, Deformation in the vicinity of the welded portion of the discharge pipe 10 is suppressed, and the tensile stress is relaxed. Therefore, the furnace welded portion 24 can be prevented from cracking and high-pressure refrigerant from leaking to the outside, which can improve the pressure resistance. In the above-mentioned embodiment, the ring-shaped metal body 23 is welded to the inside of the hermetic sealer 4, but as shown in Fig. 13, it may be welded to the outside of the hermetic container 4. In addition, the shape of the ring-shaped metal body 23 may be configured by a ring-shaped metal body 23 a having an inner edge flange as shown in FIGS. 14 and 15. In addition, as shown in FIGS. 16 and 17, an inner edge flange portion 25 is formed on the outer periphery of the welded portion of the discharge tube 10 of the upper end plate 丨. By welding the annular metal body 23a on the outer periphery, the rigidity can be further improved. . In addition, since the connection pipe is welded by general copper furnace welding, it is easy to perform furnace welding welding when the ring metal bodies 23 and 23a in the vicinity are simultaneously welded. As described above, 'the sealed container 4 is constituted by the housing portion 2 and the upper end plate 1 and the lower end plate 3, and the airtight terminal 8 and the discharge pipe 10 are welded to the upper end plate 1' due to the upper end plate. 1 The large deformation makes the present invention more effective. In addition, it is more effective to use a high-pressure refrigerant such as HFC32, a high-pressure refrigerant, or R410A containing the refrigerant. (Embodiment 5) FIG. 18 shows a connection pipe section for entering and exiting a refrigerant according to Embodiment 5 of the present invention, that is, a flat section 16 of Youfengguyi 4 (the upper end plate 1) is provided with a connection pipe and a discharge pipe. A hole 26 having the same or smaller inner diameter of the pipe 10 is welded and fixed to the end face 10a of the discharge pipe on a flat portion 16 corresponding to the hole 26. As a welding method, there is also a silver furnace welding method. For example, the copper type paper size is applied to the Chinese National Standard (CNS) A4 Zhuge (210 X 297 mm) (Please read the precautions on the back before (This page) Order · 544

Member of the Central Standards Bureau of the Ministry of Economic Affairs, Jiangxi Cooperative Co., Ltd. printed a pipe 10 pressed on the flat portion 16 and turned on the current, so that the discharge pipe contacts the copper and diffuses to the steel sealed volume n4 for welding. Compared with the tough connection method, the strength of the pipe can be increased due to the decrease in temperature rise. When a large pressure is applied to the inside of the sealed container 4, the upper end plate i becomes spherical. If the position of the welded joint of the discharge pipe 10 is known as the inside of the hole, since the upper end plate 1 becomes spherical, the welded joint will receive tensile stress in the direction of cracking. The position of the joint portion is different from that of a conventional person. It is located on the surface of the upper end plate 丨 and does not stress in the stretching direction, so no cracks or the like are generated, and the compressive strength of the sealed container 4 can be improved. The end face 10a of the discharge pipe which is welded to the upper end plate 丨 of the discharge pipe 10 is enlarged, and the diameter of the hole 26 in the upper end plate 丨 is enlarged, so that the resistance of the refrigerant flow can be reduced. (Embodiment 6) Fig. 19 shows a connection pipe section for entering and exiting a refrigerant in a sixth embodiment of the present invention. That is, a hole 26 which is the same as or smaller than the inner diameter of the discharge pipe 10 is opened in the flat portion of the male v-seal container 4 (upper end plate 1). A concave portion 27 having the same outer diameter or a slightly larger diameter is inserted into the concave portion 27 of the discharge tube end portion 10b, and the outer periphery of the discharge tube end portion 10b and both sides of the discharge tube end portion 10a are subjected to furnace welding or the like. Welded. In the above structure, when a large pressure is received inside the sealed container 4, the upper end plate 1 becomes ball-shaped. If the position of the welded joint of the tube 10 is known as the inside of the hole, as the upper end plate i becomes spherical, the welded joint will receive tensile stress in the direction of cracking, but the position of the welded joint It is located on both the periphery of the discharge pipe end 10b and the discharge pipe end 10a, so please do (please read the precautions on the back before this page) | binding 17 486544 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 __B.7 V. Description of the invention (15) The pipe is subjected to tensile stress at the outer periphery of the end of the discharge pipe, and even in the floating portion of the discharge pipe end 10a, the crack will not become large, which can ensure airtightness. Sex. In addition, when the discharge pipe 10 is subjected to a stress, although it receives bending stress at the tandem portion, it is supported at the outer periphery of the discharge pipe end ⑽ inserted into the recess 27, so the discharge pipe end 1Ga is not subjected to tensile stress. Sufficient strength of the welded joint can be obtained. In the fifth and sixth embodiments, the casing and the end plate portion of the upper T are also used to form your valley sealer. '§ is used in the case where the airtight terminal and the connecting pipe are connected to the end plate portion. In this case, the deformation is increased because two or more holes are opened in the end plate. Therefore, the above welding method is more effective. If it is applied to general refrigerants such as R22, the thickness and material of the sealed container can be reduced. It is possible to achieve cost reduction, and if the high-pressure refrigerant HFC32 or the mixed refrigerant R410A containing the refrigerant is used, the pressure resistance of the sealed container can be improved more effectively. From the description of the above embodiment, it is known that the structure of the present invention is welded to the seal by using the present invention to surround the airtight terminal welding portion to improve the rigidity of the sealed container. The sealed container of hermetic terminal changes%. However, a member that increases the rigidity of the outer periphery of the hermetic terminal welding portion can also suppress the deformation of the hermetic terminal, prevent the glass seal of the hermetic terminal from breaking, and realize a hermetic type with high compressive strength. compressor. In addition, by ring-shaped metal squatting contact welding to the sealed container, and the entire surface is welded and fixed to the sealed container, the deformation rigidity of the end plate can effectively suppress the deformation of the air-tight terminal, and realize a hermetic compressor with high compressive strength. . In addition, the present invention provides a hole with an inner edge flanging in the sealed container, where: Paper size (⑽) -ΓΤ7 --- (Please read the precautions on the back before buying this)

I-1— 1 1—I | Equipment _ Wood Order 486544 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs

-A7 ________ B7_ 5. Description of the invention (16) Kongshangshe, sealing and welding the air-tight terminal, the peripheral edge of the air-tight terminal is not easily deformed due to the inner edge flanging, which can prevent the crack of the glass seal and improve the compressive strength . In addition, in the present invention, once the air-tight terminal is hermetically welded to a plate, the plate is hermetically welded with an overlapping portion on the side and the sealed container, even if the inside of the sealed container becomes high pressure, the end plate of the welded air-tight terminal is deformed, However, due to the rigidity of the overlapping portion, the deformation of the airtight terminal can be suppressed, and the glass seal of the airtight terminal can be prevented from breaking, thereby realizing a hermetic compressor with a high resistance strength. As described above, the present invention is particularly effective in a structure in which an end plate portion having an open housing portion constitutes a sealed container and a hermetically sealed terminal is welded to the end plate portion. In addition, in the present invention, a ring-shaped metal body is welded on the outer periphery of the welding portion of the connecting pipe (the discharge pipe and the suction pipe) to reduce the tensile stress that deforms the welding portion of the connecting pipe due to the internal force of the sealed container. The compressive strength of the connecting portion of the connecting pipe can be improved. In addition, it is easy to assemble by welding the connecting pipe to the ring metal body. In addition, in the present invention, a flat portion of the sealed container is provided with a hole having the same diameter or smaller than the inner diameter of the connecting tube, and the end surface of the connecting tube is welded and fixed on the surface of the sealed container. Does not receive large tensile stress, so it can have a high compressive strength of the sealed container. In addition, in the structure of the present invention, a concave portion is formed in the peripheral portion of the hole of the sealed container, and the end of the connecting pipe is inserted into the concave portion and welded and fixed, and both the end surface of the connecting pipe and the outer peripheral portion of the end are rod-fixed. , When sealed (Please read the precautions on the back before this page)

This paper scale applies the stone standard (CNS) A Na (-2ΐ〇χ297 公 玉 486544 A7 B7 V. Description of the invention (17) When the container is under high pressure, it is not easy because it has 2 welded joints in different directions. The occurrence of cracks can increase the compressive strength of the sealed container and provide a hermetic compressor with sufficient strength even when the piping is subjected to a strong force. In addition, the sealed container of the present invention consists of the housing portion and the end as described above. The plate structure is more effective when the airtight terminal and the connecting pipe are welded to the end plate portion, because the end plate portion is greatly deformed. The refrigerant used is a high-pressure refrigerant HFC32 or includes the same. The present invention is more effective when the refrigerant is mixed with refrigerant (please read the precautions on the back before this page).

* 、 1T Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 20 This paper size is applicable to the Chinese National Standard (CNS) A4 Zhuge (210X 297 mm)

Claims (1)

2. Application for Patent Range No. 87120867 Application for Patent Range Amendment May 22, 1990 I. A sealed compressor, which includes: a sealed container, a motor and a compressor driven by the motor are configured An airtight terminal 'hermetically welded on the sealed container at a welding connection to supply power to the motor from the outside of the sealed container; the hermetic terminal includes: a cup-shaped metal body; a conductive pin; and the A glass seal π is formed between the cup-shaped metal body and the conductive pin; wherein the ring-shaped metal system to strengthen the stability against deformation of the sealed container is welded around the welded connection, and the welded connection Tie between the sealed container and the airtight terminal. 2 · If _ please patent scope! The sealed type i shrinking machine of the item, wherein the thickness of the annular metal body is larger than 1/3 of the thickness of the sealed container. 3. The sealed compressor according to item 丨 of the application, wherein the welded portion of the ring-shaped metal body welded to the read-sealed container is arc-shaped. 4 · If the patent scope please! The hermetic-type compressor of the item, wherein the annular metal body is welded to the inside of the sealed container. 5. The hermetic compressor according to item 1 of the application, wherein the annular metal body is welded to the outside of the sealed container. 6 · If the sealed compressor of item 5 of the scope of patent application is applied for, which is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Ring Gold Economy, 486544 Α8 g --------- --D8 _______ The metal body is welded integrally with the protective frame body of the airtight terminal. 7. The sealed compressor according to item 1 of the patent application scope, wherein the annular metal system is contact-welded to the sealed container. 8. The sealed compressor according to item 7 of the patent application scope, wherein the width of the annular metal body is less than 4 mm, and the annular metal body is contact-welded to the seal without providing a protrusion at the welding connection. On the container. 9. The hermetic-type compressor according to item 7 of the scope of patent application, wherein the annular metal body and a linear protrusion provided at the welded connection are welded to the sealed container. 10 · A sealed compressor comprising: a bifurcated container, wherein a motor and a compressor driven by the motor are configured; a hermetic terminal welded to the sealed container for The airtight terminal includes: a cup-shaped metal body; a conductive pin; and a glass seal α that insulates the cup-shaped metal body and the conductive pin from insulation; one of the holes is provided In the sealed container, the sealed container includes a substantially axial bristle-like protrusion provided on an edge of the hole, and the airtight terminal is hermetically welded to the bristle-like protrusion. 11 The sealed compressor according to item 10 of the patent application, wherein the bristle-like protrusions protrude toward the inside of the sealed container. 12 · If the hermetic compressor of the scope of application for the item 10, in which the bristle · IIIII l · I .-II — (Please read the precautions on the back before filling in this page) The standard of this button_ 中 0 (CNS) A4 Specifications do X 297 public love) ♦ Install ------- Order · --------- (Please read the notes on the back to disgrace Woren I) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy 486544 544ΐ C8 1 — D8 6. The protrusions in the patent scope of Shenyan project toward the outside of the sealed container. 13. A sealed compressor comprising a sealed container, in which a motor and a compressor driven by the motor are configured; a hermetically sealed terminal welded to the sealed container for The hermetically sealed container externally supplies power to the motor; the hermetic terminal includes a cup-shaped metal body; a conductive pin; and a glass seal that insulates the cup-shaped metal body from the conductive pin; wherein the air-tight terminal It is hermetically welded to a metal plate member and the metal plate member is hermetically welded to the sealed container with an overlapping portion therebetween. 14. The hermetic-type compressor according to claim 13 in which the thickness of the metal plate member is thicker than the thickness of the sealed container. 15. The hermetic compressor according to item 13 of the patent application scope, wherein a length of an overlapping portion between the metal plate member and the bifurcated container is longer than a thickness of the sealed container. 16. The sealed compressor according to item 1 of the patent application range, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 17. A sealed compressor comprising a sealed container, a motor and a compressor driven by the motor are arranged in the sealed container This paper size applies to China National Standard (CNS) A4 (210 X 297 mm). Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 6. The scope of patent application; a discharge pipe fixed to the sealed container by a welding point. It is the inside and outside of the sealed container, and has a refrigerant flowing through it and an H-shaped metal body welded around the outer edge of the welding point. 18. The sealed compressor according to claim 17, wherein the sealed container has a hole with a hair-like protrusion formed on an edge thereof, and the discharge pipe is aligned with the hole Ground welding on the bristle-like protrusions. 19. The hermetic compressor according to claim 17 in which the discharge pipe and the annular metal body are fixed to the hermetic container by furnace welding. 20 · A sealed compressor comprising: a sealed container; a motor arranged in the sealed container and a compressor driven by the motor; wherein a hole is formed in a flat area of the sealed container One of the discharge pipes is aligned with the hole, connected to an inside and an outside of the sealed container and allows a refrigerant to flow out of the sealed container; wherein the hole has a diameter equal to or smaller than an inner diameter of the discharge pipe; One end surface of the discharge pipe is fixed on an external surface of the sealed container by welding. 21. The hermetic compressor according to claim 20, wherein the end face of the discharge officer is enlarged, and the diameter of the hole is equal to or smaller than the inner diameter of the enlarged portion of the discharge pipe. 22. If the hermetic compressor of the scope of application for patent No. 20, wherein the discharge * ^ ------- Γ --- (Please read the notes on the back before filling out this page) Ceremony, Shen Qing patent scope The tube is fixed to the sealed container by diffusion welding. • A sealed type dust shrinking machine, which includes: a sealed container; one of the _ motor compressors arranged in the sealed container, driven by the Μ motor: a middle-hole is formed in a flat area of the sealed container The inner part and the discharge pipe are aligned with the hole and connected to the sealed container, and the refrigerant is allowed to flow out of the sealed container; straight one of the holes has a diameter equal to or smaller than one of the inner diameter of the discharge pipe. The recessed area is formed in a sealed container at one edge of the hole; and an end area of the discharge pipe is inserted into the recessed area and fixed thereto by welding. 24. The hermetic compressor of the scope of application for item 23, wherein both an end face and an outer edge of the end region of the discharge pipe are fixed to the sealed container by furnace welding. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 25. Such as the sealed compressor of item 1 of the patent scope, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, And the exhaust pipe is welded to the end plate area. 26. The hermetic compressor as described in the first item of the patent application, wherein hfc32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 27. The hermetic compressor according to item 2 of the application, wherein the annular metal body is welded to the inside of the sealed container. This paper size applies the Chinese National Standard (CNS) A4 Regulations (21 × 297 male H) 486544 35. The end consumer area of the Intellectual Property Bureau's Consumer Cooperatives printed the end plate area, and the airtight terminal was hermetically welded to the End plate area patent application scope 2 8 · As in the patent application section of Figure «^ # ^ 3, hermetic compressor, wherein the annular metal body is welded to the inside of the sealed container. 2 9 · The hermetic compressor as claimed in the patent application, in which the annular metal body is welded to the outside of the sealed container. 30. The hermetic compressor according to item 3 of the patent application, wherein the annular metal body is welded to the outside of the sealed container. 31. The hermetic compressor of item 2 of the patent, wherein the annular metal system is contact-welded to the hermetic container. 32. The hermetic compressor according to claim 3, wherein the annular metal system is contact-welded to the hermetic container. 33. The hermetic compressor according to item 2 of the patent application scope, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 34. The hermetic compressor of claim 3, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. For example, the hermetic compressor of item 6 of the patent application, wherein the sealed container includes a main body area and an area for closing the opening of the main body area 3. 6. For the hermetic compressor of item 8 of the patent application scope, wherein The sealed container includes a main body area and an opening for closing the main body area. The size of the paper is applicable to China National Standard (CNS) A4 (210 X 297 mm). ΓΙ— · I I ----- ^ · 11111111 (Please read the notes on the back before filling this page) 486544 Β8 C8 Patent application scope One end plate area, and the airtight terminal is hermetically welded to the end plate area. 37. The hermetic compressor according to item 9 of the application, wherein the sealed container package S has a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 38. The hermetic compressor according to claim 10, wherein the hermetically sealed trough includes a main body area and an end plate area for closing an opening of the main body area, and the air-tight terminal is hermetically welded to The end plate area. 39. The hermetic compressor according to item 11 of the application, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 40. The hermetic compressor according to item 12 of the application, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the air-tight terminal is hermetically welded to the End plate area. 41. The hermetic compressor according to item 13 of the application, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 42. The hermetic compressor according to item 14 of the patent application scope, wherein the sealed container includes a main body area and an opening for closing the main body area. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). (%) I I ** ^ ---------- (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-57- A8 B8 C8 486544 VI. One of the end plate areas covered by the patent application, and the airtight terminal is hermetically welded to the end plate area. 43. The hermetic compressor according to item 15 of the application, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the airtight terminal is hermetically welded to the End plate area. 44. The sealed compressor according to item 18 of the patent application, wherein the discharge S and the annular metal body are fixed to the sealed container by furnace welding 5. The sealed compressor according to item 21 of the patent application Machine, wherein the discharge f is fixed on the sealed container by diffusion welding. 46. The hermetic compressor of claim 18, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the discharge pipe is welded to the end plate area . 7. The hermetic compressor according to claim 20, wherein each of the seals includes a main body area and an end plate area for closing an opening of the main body area, and the discharge pipe is welded to the end plate area. on. 48. The hermetic compressor of claim 21, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the discharge pipe is welded to the end plate area . 49. The hermetic compressor of claim 23, wherein the sealed container includes a main body area and an end plate area for closing an opening of the main body area, and the discharge pipe is welded to the end plate area . 50. If the hermetic compressor according to item 24 of the patent application scope, wherein the hermetic grid (21. x 297 ---- ^ 8 ---- I ί Μ .------- Γ — (please first Read the notes on the back and fill in this page) # · Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed 486544 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, A8 B8 C8 D8 The scope of the patent application container contains a main area and is used to close the One of the openings in the main body area is an end plate area, and the discharge pipe is welded to the end plate area. 51. The sealed compressor according to item 2 of the patent application, wherein the hfc32 * mixed refrigerant containing HFC32 is in the sealed container. 52. As a sealed compressor in the third scope of the patent application, 111? 匸 32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 53. In the sixth scope of the patented scope, A hermetic compressor, in which the hfc32 * mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 54. For the hermetic compressor in item 8 of the patent application scope, the * hfc32 or the mixed refrigerant containing HFC32 is included in the sealed container. In the quilt 55. For example, the sealed compressor of item 9 in the scope of patent application, in which HFC32 * mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 56. The sealed compressor of item 10 in the scope of patent application Among them, HFC32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 57. For example, the hermetic compressor of item 11 of the patent application scope, in which hFC32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 5 8 · If the hermetic compressor of item 12 of the patent application scope, in which hfc32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the hermetic container 59. If the hermetic compressor of the item 13 of patent application scope, where HFC32 or The mixed refrigerant containing HFC32 is used as the refrigerant in this sealed container. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) fill 1111 · 11 ---- r Order '丨 1 —. (Please first (Please read the notes on the back and fill in this page) 486544 A8 B8 C8 __________ D8 VI. Application for patent scope 60. For the hermetic compressor with the scope of patent application No. 14, among which HFC32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container 61. For example, a sealed compressor of the scope of application for patent No. 15, wherein hfc32 or a mixed refrigerant containing HFC32 is used as the refrigerant 62 in the sealed container. The sealed compressor of item 17 of the patent, in which jjFC32 or a mixed refrigerant containing HFC32 is used as the refrigerant in the sealed container. 63. The sealed compressor of item 18 of the applied patent, in which HFC32 or a mixed refrigerant containing HFC32 Used as the refrigerant 64 in this sealed container, such as a sealed compressor of the 20th in the scope of patent application, in which HFC32 or a mixed refrigerant containing HFC32 is used as the refrigerant 65 in the sealed container, such as the 21st scope of the patented application, Type compressor, in which HFC32 or mixed refrigerant containing HFC32 is used as the refrigerant in this sealed container. I ^ ------- Γ ---- (Please read the precautions on the back before filling this page) n ϋ n I #. This paper size applies to China National Standard (CNS) A4 specification (210 x 297 mm). Patent application range 68 κ • Sealed compressor with patent application number 20, where the emissions are operatively coupled to the compressor One discharge side. 69 • The hermetic compressor of claim 23, wherein the discharge sound is operatively coupled to one of the discharge sides of the compressor.丨 [---- ·! · ^ (Please read the notes on the back before filling out this page) ---- Order ---- The paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies Chinese national standards ( CNS) A4 size (210 X 297 mm)