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WO2021046623A1 - Device for removing pass tubes during the replacement of a cooling compressor - Google Patents

Device for removing pass tubes during the replacement of a cooling compressor Download PDF

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Publication number
WO2021046623A1
WO2021046623A1 PCT/BR2020/050058 BR2020050058W WO2021046623A1 WO 2021046623 A1 WO2021046623 A1 WO 2021046623A1 BR 2020050058 W BR2020050058 W BR 2020050058W WO 2021046623 A1 WO2021046623 A1 WO 2021046623A1
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WO
WIPO (PCT)
Prior art keywords
compressor
nut
terminal
passage
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/BR2020/050058
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French (fr)
Portuguese (pt)
Inventor
Rogério ROSALLES
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Individual
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Individual
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Filing date
Publication date
Priority claimed from BR202019018795-1U external-priority patent/BR202019018795Y1/en
Application filed by Individual filed Critical Individual
Publication of WO2021046623A1 publication Critical patent/WO2021046623A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • F25B1/06Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections

Definitions

  • MU8100482-6, deposited on 3/22/2001 and published on 11/19/2002, entitled "RECORD FOR COMPRESSED AIR WITH QUICK HITCH NOZZLE”, describes a record for compressed air with quick coupling nozzle, consisting of a body double metallic with opening between both walls, equipped with spout, spindle, cap nut, steering wheel for opening, adjustment and closing, and screw for fixing, the mentioned body has double walls that allow the introduction of a belt, used on the waist of the worker, the spindle is positioned and fixed to said body at a previously determined degree of inclination in relation to the same body, in order to facilitate the coupling and disengagement of the compressed air hose coming from the compressor and the respective outlet from the upper part, which the mask will be connected to, the spindle has a device for opening, adjustment and closing on one of its sides, which allows the registration compressed air passage located on a wall located on the upper internal part of the spindle, on its
  • the document PI0603392-0 filed on 08/22/2006 and published on 08/04/2008, entitled “COMPRESSOR AND WELDING METHOD OF FLUID TO A COMPRESSOR HOUSING”, refers to a compressor and to a method of welding fluid piping to a compressor housing, where the brazing step is foreseen to be replaced and direct welding of the passage of fluid to the compressor housing.
  • the hermetic compressor comprises a housing and a fluid transport pipe, the fluid transport pipe passing through the housing through a through hole, the fluid transport pipe comprising a weldable coupling means, the weldable coupling means being configured to from a widening in the diameter of the fluid transport pipe, the widening in the diameter having a dimension above the diameter of the through hole and being configured along its length, the weldable coupling means being welded directly to the edge of the through hole. ticket. Also described is a method of welding the fluid piping to a compressor housing.
  • PI0603392-0 portrays well a system of using a welding method, which proves to be highly dangerous when the presence of flammable fluids, as previously mentioned.
  • FIG. 1 shows a conventional refrigeration compressor, in which the passage tubes have their tips incorporated into sheets that are applied to the compressor housing by means of welding, whose risks are if the fluid is flammable.
  • the conjugated screws are hexagonal and have a threaded end that, on one side, are coupled to the compressor housing and, on the opposite side, also with thread and beveled terminal, each receive the nut with flange through the which the passage tube is coupled, so that, by the pressure of the thread, it molds and promotes the sealing of the fitting.
  • the screws are provided with central openings to be used in the circulation of the refrigerant fluid (gas).
  • the fitting is exactly the same, except that, using press force, the terminal of the fastening element is pressed close to the compressor housing wall. However, the connection of the passage tube is made with the same thread pressure, which molds and promotes the sealing of the fitting.
  • fixing the terminal to the compressor housing or similar is done through the use of soldering.
  • connection of the passage tube is made with the same thread pressure, which molds and promotes the sealing of the fitting.
  • the objective of the model is to propose equipment with functional improvements in manufacturing and use, notably because construction and maintenance are much easier.
  • Another objective of the model is to provide an improved manufacturing cost model compared to similar compressors of the state of the art.
  • the model also has the objective of ensuring greater safety for professionals in charge of maintenance processes, avoiding eventual accidents.
  • the new model is characterized by the fact of establishing means of application of fastening elements next to the housing of a refrigeration compressor or domestic air conditioner, so that these fastening elements are, on the one hand, fixed to the mentioned threaded housing, welding or pressing and, on the opposite side, be prepared to receive the coupling of the passage tube, which is coupled under thread pressure and sealing through a flange that molds, under interference, during the tightening process.
  • the fastening elements are provided with central openings and receive, through the passage tubes, the hoses to be used in the circulation of the cooling gas.
  • Fig. 1 Perspective view of a compressor with conventional through tubes
  • Fig. 2 Perspective view of the fixing elements used in the present patent application, in a first embodiment, in the threaded condition;
  • FIG. 3 Perspective view of a compressor with the threaded fastening elements, according to the present model, in the first embodiment, with the fastening elements in enlarged details, applied to a domestic refrigeration compressor;
  • Fig. 4 Perspective view showing, in sequence, the realization in the form of a threaded fastener, being applied to the housing of the domestic refrigeration compressor;
  • Fig. 5 Perspective view showing, in the version made of threaded fasteners, the fitting in the housing of the domestic refrigeration compressor, as well as the end of the passage tube, with detail of the A-A cut;
  • Fig. 6 Perspective view of a domestic refrigeration compressor, in the version in which the fastening elements are welded to the compressor housing;
  • FIG. 7 Perspective view in an embodiment of the pressed fastening elements, showing an enlarged section detail, with the pressing line;
  • Fig. 8 Perspective view, for illustrative purposes, of a domestic refrigeration compressor with fixing elements and passage tubes;
  • Fig. 9 Perspective view of a unit used in a conventional air conditioner
  • Fig. 10 Perspective view of a unit used in an air conditioner, with the form of a screw;
  • Fig. 11 Perspective view of a unit used in an air conditioner, with the realization in the pressed form;
  • Fig. 12 Perspective view of a unit used in an air conditioner, made in welded form. DETAILED DESCRIPTION OF THE MODEL
  • the model in question comprises, in a first embodiment, the opening of threads (R1) in the housing (C1) where the passage tubes (T) are coupled, so that, in each mentioned thread (R1) is a fixing element (2) is applied that conjugates, externally and next to the face of the housing (C1), a thread (3) and a hexagon (4); said thread (3) applies to the thread (R1) present in the housing (C1) of said compressor (1).
  • the fastening element (2) has, at the other end, a threaded area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal (6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).
  • the present model has the fixing elements (2) fixed by pressing to the compressor housing (C1) (1), by pressing action (P1), whereas the opposite end, where the passage tube (T) is applied, it has the same thread area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal ( 6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).
  • the present model has the fixing elements (2) fixed by pressing to the compressor housing (C1) (1), by welding action (S1), whereas the opposite end, where the passage tube (T) is applied, it has the same thread area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal ( 6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)

Abstract

The present utility model patent application relates to a device for the removal of the pass tubes during compressor replacement processes in domestic refrigeration and cooling (refrigerators, freezers, air conditioners, drinking fountains, etc.), the intended field of application being mechanical engineering, particularly domestic and light commercial refrigeration and cooling. The model envisages different means for applying fastening elements (2) to the shell (C1) of a compressor (1), by screw thread, pressing or welding, while the opposite end, to which a pass tube (T) is applied, has a threaded area (5) with a bevelled end (6) that receives a nut (7) with a flanged end (8) that maintains contact with said bevelled end (6) and, by the screwing force of the nut (7), is shaped and deformed, promoting the fastening and sealing of the pass tube (T).

Description

DISPOSITIVO PARA REMOÇÃO DE TUBOS DE PASSAGEM NA SUBSTITUIÇÃO DE UM COMPRESSOR DE REFRIGERAÇÃO CAMPO DE APLICAÇÃO DEVICE FOR REMOVAL OF PASSAGE TUBES IN THE REPLACEMENT OF A REFRIGERATION COMPRESSOR FIELD OF APPLICATION

[001] Trata a presente solicitação de patente de modelo de utilidade de um dispositivo para a remoção dos tubos de passagem em processos de substituição de compressor em refrigeração doméstica (geladeiras, freezers, condicionadores de ar, bebedouros e outros), sendo o campo de aplicação voltado à área de engenharia mecânica, particularmente refrigeração doméstica e comercial leve. [001] It deals with the present patent application for a utility model for a device for the removal of passage pipes in compressor replacement processes in domestic refrigeration (refrigerators, freezers, air conditioners, drinking fountains and others), being the field of application geared to the area of mechanical engineering, particularly domestic and light commercial refrigeration.

ANTECEDENTES DA TÉCNICA BACKGROUND OF THE TECHNIQUE

[002] Sabe-se que, os equipamentos utilizados na refrigeração doméstica (geladeiras, freezers, condicionadores de ar, bebedouros e outros) utilizam, de acordo com seu fabricante, diferentes tipos de fluídos refrigerantes (gases). Como existe uma enorme preocupação com o meio ambiente, e especificamente com o aquecimento global, o uso desses fluídos refrigerantes (gases) convencionalmente empregados na refrigeração causa danos irreversíveis ao planeta. [002] It is known that the equipment used in domestic refrigeration (refrigerators, freezers, air conditioners, drinking fountains and others) uses, according to its manufacturer, different types of refrigerant fluids (gases). As there is a huge concern with the environment, and specifically with global warming, the use of these refrigerant fluids (gases) conventionally used in refrigeration causes irreversible damage to the planet.

[003] A via de substituição dos fluídos refrigerantes (gases) considerados naturais (não agridem a camada de ozônio e não possuem ação sobre o efeito estufa), mas são gases hidrocarbonetos altamente inflamáveis, por exemplo, o propano (R290) e isobutano (R600A). [003] The way of replacing refrigerant fluids (gases) considered natural (do not harm the ozone layer and have no effect on the greenhouse effect), but are highly flammable hydrocarbon gases, for example, propane (R290) and isobutane ( R600A).

[004] Embora considerados comercialmente viáveis e não poluentes, estes gases apresentam riscos de explosões e outros acidentes, notadamente quando o profissional, desconhecendo o tipo de fluído refrigerante (gás) inserido no sistema de refrigeração, necessita, na hora da manutenção ou substituição do compressor por problema técnico, fazer uso do maçarico de solda para liberar o compressor dos tubos de passagem. Neste momento, ocorre o incêndio e explosão. Em algumas situações, isso pode ser até mesmo ser fatal para o técnico de refrigeração, levando a óbito. Isso ocorre porque os tubos de passagem são soldados à carcaça do compressor e, por descuido ou falta de atenção, consequências graves podem ser verificadas ESTADO DA TÉCNICA [004] Although considered commercially viable and non-polluting, these gases present risks of explosions and other accidents, especially when the professional, unaware of the type of refrigerant fluid (gas) inserted in the refrigeration system, needs it, at the time of maintenance or replacement of the compressor due to a technical problem, make use of the welding torch to release the compressor from the passage tubes. At this moment, the fire and explosion occurs. In some situations, this can even be fatal for the refrigeration technician, leading to death. This is because the passage tubes are welded to the compressor housing and, due to carelessness or lack of attention, serious consequences can be verified.

[005] Atualmente, tem ocorrido vários acidentes com morte de técnicos de refrigeração, particularmente no momento da substituição do compressor de um refrigerador ou condicionador de ar, por exemplo, haja vista que o técnico, quando da manutenção, não sabe qual tipo de fluido refrigerante está inserido no sistema, particularmente quando este fluido refrigerante tiver sido aplicado ao equipamento por outro técnico, em manutenções anteriores. [005] Currently, there have been several accidents with the death of refrigeration technicians, particularly when replacing the compressor of a refrigerator or air conditioner, for example, since the technician, during maintenance, does not knows what type of refrigerant is inserted into the system, particularly when this refrigerant has been applied to the equipment by another technician in previous maintenance.

[006] Tecnicamente, na falta desta informação e conhecimento por parte do técnico encarregado do serviço, existe sempre a possibilidade da ocorrência de incêndio, explosões ou outros acidentes vinculados ao fato de que os fluidos refrigerantes atualmente fabricados são, em grande parte, altamente inflamáveis. [006] Technically, in the absence of this information and knowledge on the part of the technician in charge of the service, there is always the possibility of the occurrence of fire, explosions or other accidents linked to the fact that the refrigerants currently manufactured are, to a large extent, highly flammable. .

[007] A estes aspectos, soma-se o fato de que, para a remoção dos tubos de passagem são utilizados processos de soldagem, os quais são detonadores dos incêndios nos casos em que os fluidos são inflamáveis. [007] To these aspects, we add the fact that, for the removal of the passage tubes, welding processes are used, which are fire detonators in cases where the fluids are flammable.

[008] Em buscas efetuadas não foram encontrados documentos considerados relevantes. O MU8100482-6, depositado em 22/03/2001 e publicado em 19/11/2002, intitulado "REGISTRO PARA AR COMPRIMIDO COM BICO DE ENGATE RÁPIDO", descreve um registro para ar comprimido com bico de engate rápido, constituído por um corpo metálico duplo com abertura entre ambas paredes, dotado de bico, fuso, porca de capa, volante para abertura, regulagem e fechamento, e parafuso para fixação, o mencionado corpo é dotado de paredes duplas que permitem a introdução de cinto, utilizado na cintura do operário, o fuso é posicionado e fixo ao dito corpo num grau de inclinação previamente determinado em relação ao mesmo corpo, com a finalidade de facilitar o engate e desengate da mangueira de ar comprimido proveniente do compressor e respectiva saída da mangueira pela sua parte superior, a qual será conectada a máscara, o fuso dispõe numa de suas laterais de dispositivo para abertura, regulagem e fechamento, o qual permite efetuar o controle do registro por meio do volante ligado ao fuso, dispondo de orifício de passagem de ar comprimido localizado numa parede posicionada na parte superior interna do fuso, na sua borda superior externa está disposta rosca externa que permite a fixação da mangueira de saída do ar comprimido. [008] In searches carried out, no documents were found to be relevant. MU8100482-6, deposited on 3/22/2001 and published on 11/19/2002, entitled "RECORD FOR COMPRESSED AIR WITH QUICK HITCH NOZZLE", describes a record for compressed air with quick coupling nozzle, consisting of a body double metallic with opening between both walls, equipped with spout, spindle, cap nut, steering wheel for opening, adjustment and closing, and screw for fixing, the mentioned body has double walls that allow the introduction of a belt, used on the waist of the worker, the spindle is positioned and fixed to said body at a previously determined degree of inclination in relation to the same body, in order to facilitate the coupling and disengagement of the compressed air hose coming from the compressor and the respective outlet from the upper part, which the mask will be connected to, the spindle has a device for opening, adjustment and closing on one of its sides, which allows the registration compressed air passage located on a wall located on the upper internal part of the spindle, on its upper external edge is arranged an external thread that allows the attachment of the compressed air outlet hose.

[009] O documento PI0603392-0, depositado em 22/08/2006 e publicado em 08/04/2008, intitulado “COMPRESSOR E MÉTODO DE SOLDAGEM DE TUBULAÇÃO DE FLUIDO A UMA CARCAÇA DE COMPRESSOR”, refere-se a um compressor e a um método de soldagem de tubulação de fluido à uma carcaça de compressor, onde se prevê a substituição da etapa de brasagem e se prevê a soldagem direta da tubulação de passagem de fluido à carcaça do compressor. O compressor hermético compreende uma carcaça e uma tubulação de transporte de fluido, a tubulação de transporte de fluido transpassando a carcaça por um orifício de passagem, a tubulação de transporte de fluido compreendendo um meio de acoplamento soldável, o meio de acoplamento soldável sendo configurado a partir de um alargamento no diâmetro da tubulação de transporte de fluido, o alargamento no diâmetro tendo dimensão acima do diâmetro do orifício de passagem e sendo configurado ao longo de seu comprimento, o meio de acoplamento soldável sendo soldado diretamente junto à uma borda do orifício de passagem. É também descrito um método de soldagem da tubulação de fluido a uma carcaça de compressor. [009] The document PI0603392-0, filed on 08/22/2006 and published on 08/04/2008, entitled “COMPRESSOR AND WELDING METHOD OF FLUID TO A COMPRESSOR HOUSING”, refers to a compressor and to a method of welding fluid piping to a compressor housing, where the brazing step is foreseen to be replaced and direct welding of the passage of fluid to the compressor housing. The hermetic compressor comprises a housing and a fluid transport pipe, the fluid transport pipe passing through the housing through a through hole, the fluid transport pipe comprising a weldable coupling means, the weldable coupling means being configured to from a widening in the diameter of the fluid transport pipe, the widening in the diameter having a dimension above the diameter of the through hole and being configured along its length, the weldable coupling means being welded directly to the edge of the through hole. ticket. Also described is a method of welding the fluid piping to a compressor housing.

[010] Dos documentos acima selecionados, o PI0603392-0 retrata bem um sistema de uso de um método de soldagem, o qual se mostra de alta periculosidade quando da presença de fluidos inflamáveis, conforme dito anteriormente. [010] From the documents selected above, PI0603392-0 portrays well a system of using a welding method, which proves to be highly dangerous when the presence of flammable fluids, as previously mentioned.

[011] Ainda sobre o estado da técnica, a Fig. 1 anexa mostra um compressor de refrigeração convencional, no qual os tubos de passagem têm as suas pontas incorporadas em chapas que se aplicam à carcaça do compressor por meio de soldagem, cujos riscos são reais, caso o fluido seja inflamável. [011] Still on the state of the art, the attached Fig. 1 shows a conventional refrigeration compressor, in which the passage tubes have their tips incorporated into sheets that are applied to the compressor housing by means of welding, whose risks are if the fluid is flammable.

DO NOVO MODELO THE NEW MODEL

[012] O pedido de patente de modelo de utilidade em questão, se destaca pelo fato de que as extremidades dos tubos de passagem não mais são incorporadas às chapas fixadas na carcaça do compressor de refrigeração doméstica e comercial leve. De forma totalmente distinta, são abertas na estrutura da carcaça do compressor roscas destinadas a receberem elementos de fixação aos quais os tubos de passagem são acoplados. Estes elementos de fixação podem ser parafusos com porcas, fazendo uso de roscas, ou ainda aplicados por prensagem ou solda. [012] The utility model patent application in question stands out for the fact that the ends of the passage tubes are no longer incorporated into the plates fixed on the housing of the light commercial and domestic refrigeration compressor. In a completely different way, threads are opened in the compressor housing structure to receive fastening elements to which the passage tubes are attached. These fastening elements can be bolts with nuts, using threads, or even applied by pressing or welding.

[013] Os parafusos conjugados recebem sextavados e possuem uma ponta com rosca que, de um lado, se acoplam à carcaça do compressor e, no lado oposto, também com rosca e terminal chanfrado, recebem, cada qual, a porca com flange através da qual o tubo de passagem se acopla, de maneira que, pela pressão da rosca, se amolda e promove a vedação do encaixe. Os parafusos são dotados de aberturas centrais a serem empregados na circulação do fluido refrigerante (gás). [014] Na forma de realização prensada, o encaixe é exatamente o mesmo, a exceção que, fazendo uso de força de prensa, o terminal do elemento de fixação é prensado junto à parede da carcaça do compressor. Porém, a conexão do tubo de passagem é feita com a mesma pressão de rosca, que se amolda e promove a vedação do encaixe. [013] The conjugated screws are hexagonal and have a threaded end that, on one side, are coupled to the compressor housing and, on the opposite side, also with thread and beveled terminal, each receive the nut with flange through the which the passage tube is coupled, so that, by the pressure of the thread, it molds and promotes the sealing of the fitting. The screws are provided with central openings to be used in the circulation of the refrigerant fluid (gas). [014] In the pressed embodiment, the fitting is exactly the same, except that, using press force, the terminal of the fastening element is pressed close to the compressor housing wall. However, the connection of the passage tube is made with the same thread pressure, which molds and promotes the sealing of the fitting.

[015] Na forma de realização por solda, a fixação do terminal à carcaça do compressor ou similar é feita mediante uso de solda. Porém, a conexão do tubo de passagem é feita com a mesma pressão de rosca, que se amolda e promove a vedação do encaixe. [015] In the soldering embodiment, fixing the terminal to the compressor housing or similar is done through the use of soldering. However, the connection of the passage tube is made with the same thread pressure, which molds and promotes the sealing of the fitting.

[016] Assim, para que haja a separação do compressor em relação aos tubos de passagem, em quaisquer das formas de realização apresentadas, somente basta liberar o sistema de rosca da conexão vedada do tudo de passagem, sem o uso de solda, o que resolve a questão do uso de gases inflamáveis nos compressores e similares. OBJETIVOS DO MODELO [016] Thus, for the compressor to be separated from the passage pipes, in any of the embodiments presented, it is only enough to release the threaded system from the sealed connection of the passage pipe, without the use of solder, which resolves the issue of the use of flammable gases in compressors and the like. OBJECTIVES OF THE MODEL

[017] É objetivo do modelo propor um equipamento com melhorias funcionais na fabricação e no uso, notadamente porque a construção e manutenção ficam muito facilitadas. [017] The objective of the model is to propose equipment with functional improvements in manufacturing and use, notably because construction and maintenance are much easier.

[018] Outro objetivo do modelo é prover um modelo de custo fabricacional melhorado em relação aos compressores similares do estado da técnica. [018] Another objective of the model is to provide an improved manufacturing cost model compared to similar compressors of the state of the art.

[019] Tem, ainda, o modelo, o objetivo da garantir maior segurança aos profissionais encarregados de processos de manutenção, evitando eventuais acidentes. [019] The model also has the objective of ensuring greater safety for professionals in charge of maintenance processes, avoiding eventual accidents.

[020] Pode ser considerado ainda objetivo do presente modelo, eliminar o uso de procedimentos de soldagem nos processos envolvendo a substituição de tubos de passagem nos compressores de refrigeração e condicionadores de ar domésticos. DESCRIÇÃO GERAL DO MODELO [020] It can also be considered an objective of the present model, to eliminate the use of welding procedures in processes involving the replacement of passage tubes in refrigeration compressors and domestic air conditioners. GENERAL DESCRIPTION OF THE MODEL

[021 ] O novo modelo possui como característica o fato de estabelecer meios de aplicação de elementos de fixação junto à carcaça de um compressor de refrigeração ou condicionador de ar doméstico, de modo que estes elementos de fixação sejam, de um lado, fixados à mencionada carcaça por rosca, solda ou prensagem e, do lado oposto, sejam preparados para receber o acoplamento do tubo de passagem, que é acoplado sob pressão de rosca e vedação através de uma flange que se amolda, sob interferência, quando do processo de aperto. Assim, os elementos de fixação são dotados de aberturas centrais e recebem, através dos tubos de passagem, as mangueiras a serem empregadas na circulação do gás de refrigeração. DESCRIÇÃO DOS DESENHOS [021] The new model is characterized by the fact of establishing means of application of fastening elements next to the housing of a refrigeration compressor or domestic air conditioner, so that these fastening elements are, on the one hand, fixed to the mentioned threaded housing, welding or pressing and, on the opposite side, be prepared to receive the coupling of the passage tube, which is coupled under thread pressure and sealing through a flange that molds, under interference, during the tightening process. Thus, the fastening elements are provided with central openings and receive, through the passage tubes, the hoses to be used in the circulation of the cooling gas. DESCRIPTION OF THE DRAWINGS

[022] O modelo será, a seguir, descrito em suas formas preferenciais de realização, sendo que, para melhor entendimento, referências serão feitas aos desenhos anexos, nos quais estão representadas: [022] The model will be described below in its preferred forms of realization, and for better understanding, references will be made to the attached drawings, in which they are represented:

Fig. 1 : Vista em perspectiva de um compressor com os tubos de passagem convencionais; Fig. 1: Perspective view of a compressor with conventional through tubes;

Fig. 2: Vista em perspectiva dos elementos de fixação, utilizados na presente solicitação de patente, numa primeira forma de realização, na condição roscados; Fig. 2: Perspective view of the fixing elements used in the present patent application, in a first embodiment, in the threaded condition;

Fig. 3: Vista em perspectiva de um compressor com os elementos de fixação de fixação roscados, segundo o presente modelo, na primeira forma de realização, com os elementos de fixação em detalhes ampliados, aplicados a um compressor de refrigeração doméstica; Fig. 3: Perspective view of a compressor with the threaded fastening elements, according to the present model, in the first embodiment, with the fastening elements in enlarged details, applied to a domestic refrigeration compressor;

Fig. 4: Vista em perspectiva mostrando, em sequência, a realização na forma de elemento de fixação roscado, sendo aplicado à carcaça do compressor de refrigeração doméstica; Fig. 4: Perspective view showing, in sequence, the realization in the form of a threaded fastener, being applied to the housing of the domestic refrigeration compressor;

Fig. 5: Vista em perspectiva mostrando, na versão de realização de elementos de fixação roscados, o encaixe na carcaça do compressor de refrigeração doméstica, bem como a ponta do tubo de passagem, com detalhe do corte A-A; Fig. 5: Perspective view showing, in the version made of threaded fasteners, the fitting in the housing of the domestic refrigeration compressor, as well as the end of the passage tube, with detail of the A-A cut;

Fig. 6: Vista em perspectiva de um compressor de refrigeração doméstica, na versão em que os elementos de fixação são soldados à carcaça do compressor; Fig. 6: Perspective view of a domestic refrigeration compressor, in the version in which the fastening elements are welded to the compressor housing;

Fig. 7: Vista em perspectiva numa forma de realização dos elementos de fixação prensados, sendo mostrado um detalhe em corte ampliado, com a linha de prensagem; Fig. 8: Vista em perspectiva, a título ilustrativo, de um compressor de refrigeração doméstica com os elementos de fixação e os tubos de passagem; Fig. 7: Perspective view in an embodiment of the pressed fastening elements, showing an enlarged section detail, with the pressing line; Fig. 8: Perspective view, for illustrative purposes, of a domestic refrigeration compressor with fixing elements and passage tubes;

Fig. 9: Vista em perspectiva de uma unidade utilizada em condicionador de ar convencional; Fig. 9: Perspective view of a unit used in a conventional air conditioner;

Fig. 10: Vista em perspectiva de uma unidade utilizada em condicionador de ar, com a realização na forma de rosca; Fig. 10: Perspective view of a unit used in an air conditioner, with the form of a screw;

Fig. 11 : Vista em perspectiva de uma unidade utilizada em condicionador de ar, com a realização na forma prensada; Fig. 11: Perspective view of a unit used in an air conditioner, with the realization in the pressed form;

Fig. 12: Vista em perspectiva de uma unidade utilizada em condicionador de ar, com a realização na forma soldada. DESCRIÇÃO DETALHADA DO MODELO Fig. 12: Perspective view of a unit used in an air conditioner, made in welded form. DETAILED DESCRIPTION OF THE MODEL

[023] O DISPOSITIVO PARA REMOÇÃO DE TUBOS DE PASSAGEM NA SUBSTITUIÇÃO DE UM COMPRESSOR DE REFRIGERAÇÃO, objeto desta solicitação de patente de modelo de utilidade, se aplica a um compressor (1 ) de refrigeração ou condicionador de ar do tipo doméstico, sendo que, no presente modelo, os tubos de passagem (T) são acoplados em elementos de fixação (2) aplicados à carcaça (C1 ) do mencionado compressor (1 ). [023] THE DEVICE FOR REMOVAL OF PASSAGE TUBES IN THE REPLACEMENT OF A REFRIGERATION COMPRESSOR, object of this utility model patent application, applies to a compressor (1) for refrigeration or air conditioner of the domestic type, being that, in the present model, the passage tubes (T) are coupled to fastening elements (2) applied to the housing (C1) of the aforementioned compressor (1).

[024] O modelo em questão compreende, numa primeira forma de realização, a abertura de roscas (R1 ) na carcaça (C1 ) onde os tubos de passagens (T) são acoplados, de modo que, em cada mencionada rosca (R1 ) seja aplicado elemento de fixação (2) que conjuga, externamente e junto à face da carcaça (C1), uma rosca (3) e um sextavado (4); dita rosca (3) se aplica à rosca (R1 ) presente carcaça (C1 ) do referido compressor (1 ). O elemento de fixação (2) possui, na outra extremidade, uma área de rosca (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). [024] The model in question comprises, in a first embodiment, the opening of threads (R1) in the housing (C1) where the passage tubes (T) are coupled, so that, in each mentioned thread (R1) is a fixing element (2) is applied that conjugates, externally and next to the face of the housing (C1), a thread (3) and a hexagon (4); said thread (3) applies to the thread (R1) present in the housing (C1) of said compressor (1). The fastening element (2) has, at the other end, a threaded area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal (6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).

[025] Na forma de realização prensada, o presente modelo tem os elementos de fixação (2) fixados por prensagem à carcaça (C1 ) do compressor (1 ), por ação de prensagem (P1 ), ao passo que o extremo contrário, onde se aplica o tubo de passagem (T), possui a mesma área de rosca (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). [025] In the pressed embodiment, the present model has the fixing elements (2) fixed by pressing to the compressor housing (C1) (1), by pressing action (P1), whereas the opposite end, where the passage tube (T) is applied, it has the same thread area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal ( 6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).

[026] Na forma de realização soldada, o presente modelo tem os elementos de fixação (2) fixados por prensagem à carcaça (C1 ) do compressor (1 ), por ação de soldagem (S1 ), ao passo que o extremo contrário, onde se aplica o tubo de passagem (T), possui a mesma área de rosca (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). [026] In the welded embodiment, the present model has the fixing elements (2) fixed by pressing to the compressor housing (C1) (1), by welding action (S1), whereas the opposite end, where the passage tube (T) is applied, it has the same thread area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal ( 6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T).

Claims

REIVINDICAÇÃO CLAIM 1) DISPOSITIVO PARA REMOÇÃO DE TUBOS DE PASSAGEM NA SUBSTITUIÇÃO DE UM COMPRESSOR DE REFRIGERAÇÃO, se aplica a um compressor (1 ) de refrigeração doméstica - geladeira, freezer, condicionador de ar, bebedouro - sendo caracterizado por, numa primeira forma de realização, serem abertas roscas (R1 ) na carcaça (C1 ) onde os tubos de passagens (T) serão acoplados, de modo que, em cada mencionada rosca (R1 ) seja aplicado elemento de fixação 1) DEVICE FOR REMOVAL OF PASSAGE TUBES IN THE REPLACEMENT OF A REFRIGERATION COMPRESSOR, applies to a compressor (1) for domestic refrigeration - refrigerator, freezer, air conditioner, water cooler - being characterized in that, in a first embodiment, they are threaded (R1) in the housing (C1) where the passage tubes (T) will be coupled, so that in each mentioned thread (R1) fixing element is applied (2) que conjuga, externamente e junto à face da carcaça (C1 ) uma rosca (2) that conjugates, externally and next to the face of the carcass (C1) a thread (3) e um sextavado(3) and a hexagon (4), dita rosca (3) se aplica à rosca (R1 ) presente carcaça (C1 ) do referido compressor (1 ); o elemento de fixação (2) possui, na outra extremidade, uma área de rosca (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). (4), said thread (3) applies to the thread (R1) present in the housing (C1) of said compressor (1); the fastening element (2) has, at the other end, a threaded area (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal (6) and, due to the threading force of the nut (7), it shapes and deforms, promoting the fixing and sealing of the passage tube (T). 2) DISPOSITIVO PARA REMOÇÃO DE TUBOS DE PASSAGEM NA SUBSTITUIÇÃO DE UM COMPRESSOR DE REFRIGERAÇÃO, de acordo com a reivindicação 1 , caracterizado por, numa segunda forma de realização opcional, prensada, os elementos de fixação (2) serem fixados por prensagem à carcaça (C1 ) do compressor (1 ), ao passo que o extremo contrário, onde se aplica o tubo de passagem (T), possui a área de rosca (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). 2) DEVICE FOR REMOVAL OF PASSAGE TUBES IN THE REPLACEMENT OF A COOLING COMPRESSOR, according to claim 1, characterized in that, in a second optional, pressed embodiment, the fastening elements (2) are fixed by pressing to the housing ( C1) of the compressor (1), while the opposite end, where the passage tube (T) is applied, has the thread area (5) with a chamfered terminal (6) that receives the nut (7) with the terminal flanged (8), which maintains contact with said chamfered terminal (6) and, due to the threading force of the nut (7), shapes and deforms, promoting the fixing and sealing of the passage tube (T). 3) DISPOSITIVO PARA REMOÇÃO DE TUBOS DE PASSAGEM NA SUBSTITUIÇÃO DE UM COMPRESSOR DE REFRIGERAÇÃO, de acordo com as reivindicações 1 e 2, caracterizado por, numa terceira forma de realização opcional, soldada, os elementos de fixação (2) serem fixados por soldagem à carcaça (C1 ) do compressor (1 ), ao passo que o extremo contrário, onde se aplica o tubo de passagem (T), possui a área de rosca3) DEVICE FOR REMOVAL OF PASSAGE TUBES IN THE REPLACEMENT OF A COOLING COMPRESSOR, according to claims 1 and 2, characterized in that, in a third optional, welded embodiment, the fastening elements (2) are fixed by welding to the compressor housing (C1) (1), while the opposite end, where the passage tube (T) is applied, has the thread area (5) com terminal chanfrado (6) que recepciona a porca (7) com o terminal flangeado (8), o qual mantém contato com o dito terminal chanfrado (6) e, pela força de rosqueamento da porca (7), se amolda e deforma, promovendo a fixação e vedação do tubo de passagem (T). (5) with a chamfered terminal (6) that receives the nut (7) with the flanged terminal (8), which maintains contact with said chamfered terminal (6) and, by threading force of the nut (7), molds itself and deforms, promoting the fixing and sealing of the passage tube (T).
PCT/BR2020/050058 2019-09-10 2020-02-27 Device for removing pass tubes during the replacement of a cooling compressor Ceased WO2021046623A1 (en)

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BR202019018795-1U BR202019018795Y1 (en) 2019-09-10 DEVICE FOR REMOVING PASSAGE TUBES WHEN REPLACING A REFRIGERATION COMPRESSOR
BRBR2020190187951 2019-09-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
WO2000007749A1 (en) * 1998-08-04 2000-02-17 Zanussi Elettromeccanica S.P.A. Method for joining metal tubes to the casing of refrigeration compressors
FR2813376A1 (en) * 2000-08-01 2002-03-01 Flii Rinaldi S R 1 Casing for refrigerator motor-compressor assembly has pair of half shells sealed together to form casing and having fluid passages formed through it
BR8100482U (en) * 2001-03-22 2002-11-19 Jose Antonio Puppio Compressed air valve with quick coupling nozzle
BRPI0603392A (en) * 2006-08-22 2008-04-08 Whirlpool Sa compressor and method of welding fluid pipe to a compressor casing
CN205118492U (en) * 2015-10-23 2016-03-30 德耐尔压缩机制造(上海)有限公司 Air compressor and connector thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
WO2000007749A1 (en) * 1998-08-04 2000-02-17 Zanussi Elettromeccanica S.P.A. Method for joining metal tubes to the casing of refrigeration compressors
FR2813376A1 (en) * 2000-08-01 2002-03-01 Flii Rinaldi S R 1 Casing for refrigerator motor-compressor assembly has pair of half shells sealed together to form casing and having fluid passages formed through it
BR8100482U (en) * 2001-03-22 2002-11-19 Jose Antonio Puppio Compressed air valve with quick coupling nozzle
BRPI0603392A (en) * 2006-08-22 2008-04-08 Whirlpool Sa compressor and method of welding fluid pipe to a compressor casing
CN205118492U (en) * 2015-10-23 2016-03-30 德耐尔压缩机制造(上海)有限公司 Air compressor and connector thereof

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