EP4176189A1 - Clapet antiretour - Google Patents

Clapet antiretour

Info

Publication number
EP4176189A1
EP4176189A1 EP21737442.0A EP21737442A EP4176189A1 EP 4176189 A1 EP4176189 A1 EP 4176189A1 EP 21737442 A EP21737442 A EP 21737442A EP 4176189 A1 EP4176189 A1 EP 4176189A1
Authority
EP
European Patent Office
Prior art keywords
check valve
housing part
insert
valve according
spring element
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.)
Pending
Application number
EP21737442.0A
Other languages
German (de)
English (en)
Inventor
Albert Boecker
Matthias Winter
Thorsten Schaefer
Florian Deibel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TI Automotive Technology Center GmbH
Original Assignee
TI Automotive Technology Center GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TI Automotive Technology Center GmbH filed Critical TI Automotive Technology Center GmbH
Publication of EP4176189A1 publication Critical patent/EP4176189A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/141—Check valves with flexible valve members the closure elements not being fixed to the valve body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling

Definitions

  • the invention relates to a check valve comprising a first housing part, a second housing part and an insert, a spring element and a valve body being formed from the insert, a valve seat being formed from the first housing part, the first housing part and the second housing part being a connection element for connecting to a fluid line.
  • Check valves are generally known and are used, for example, in fluid circuits, whereby fluid circuits are to be understood in particular as cooling circuits and air-conditioning circuits in which a coolant circulates.
  • Check valves allow the fluid to flow through only in one direction and block a flow of fluid in the opposite direction. This can, for example, prevent a backflow of fluid when the units are switched off.
  • check valves can be used to direct fluid flows in more complex fluid circuits.
  • the requirements placed on the materials of the check valve are comparatively low. It is therefore also known to form individual components of the check valve made of plastic. In this case, however, the components of the insert, the spring element and the valve body are mostly formed separately from one another and the spring element mostly consists of a metallic material.
  • Electric vehicles have components that have to be temperature-controlled by a coolant circuit.
  • Accumulators have to be cooled or heated, for example, depending on their use and the ambient temperature. In particular, the accumulators limit the available space and the Available weight for other components, for example for components of the coolant circuit.
  • the invention is based on the object of providing a check valve which can be manufactured inexpensively.
  • the check valve according to the invention comprises a first housing part, a second housing part and an insert, a spring element and a valve body being formed from the insert, a valve seat being formed from the first housing part, the first housing part and the second housing part being a connecting element for connecting to have a fluid line, wherein the insert is formed from injection-mouldable plastic.
  • both the spring element and the valve body are therefore made of injection-mouldable plastic and can therefore be produced particularly inexpensively.
  • the check valve according to the invention is particularly suitable for use in a coolant duct, the coolant duct having a coolant, for example cooling water, flowing through it.
  • the spring element automatically presses the valve body against the valve seat, so that the flow direction starting from the spring element in the direction of the valve body is blocked for the coolant.
  • the coolant can flow through the check valve if the delivery pressure of the coolant is so high that the valve body is spaced apart from the valve seat against the force of the spring element. Because the spring element is made of plastic, the auxiliary energy required for this is comparatively low.
  • plastics are corrosion-resistant. This is particularly in connection with the Use in electromobility advantageous. With accumulators it is possible that electrolyte gets into the cooling circuit in the event of damage.
  • the insert made of plastic can be made of a plastic that is resistant to such electrolytes.
  • a holding body which is supported on the second housing part can be formed from the insert.
  • the holding body preferably has a passage through which the coolant can flow.
  • the holding body can be designed, for example, in the shape of a ring. The holding body is supported on the second housing part and thereby causes the spring element to press the valve body securely against the valve seat.
  • the insert with the spring element, valve body and holding body can be made in one piece and made of the same material.
  • the check valve has only three separate components: the first housing part, the second housing part and the insert.
  • the check valve is designed to be particularly simple and can be manufactured cost-effectively in large numbers.
  • the injection molding process is particularly suitable for manufacturing the components of the check valve.
  • the first housing part and / or the second housing part are made of injection-mouldable plastic.
  • PP polypropylene
  • PA polyamide
  • POM polyoxymethylene
  • the housing parts can be positively, non-positively and / or cohesively connected to one another.
  • the housing parts can be connected to one another in a form-fitting / force-fitting manner via a snap connection.
  • a sealing body which is preferably made of thermoplastic material, can be assigned to the valve seat.
  • the sealing body is made of thermoplastic material and can be manufactured inexpensively.
  • the sealing body can be molded together with the first housing part in the course of the two-component injection molding.
  • the check valve can be produced in a wide variety of shapes, so that the check valve can be adapted particularly well to the available space of a coolant circuit of an electric vehicle.
  • a guide element can be formed from the insert.
  • the guide element has the effect that the valve body is evenly spaced from the valve seat when it opens and executes a directed movement when it opens. This is particularly advantageous in connection with the spring element made of plastic, since this has a comparatively low holding force.
  • the guide element is preferably arranged on the side of the valve body facing away from the spring element.
  • the guide element can be supported in sections on the housing inner wall of the first housing part.
  • the guide element can be formed from the insert in one piece and of the same material. Because the guide element is arranged on the side of the valve body facing away from the spring element, the insert can be manufactured inexpensively by injection molding. In this context, it is particularly conceivable that the spring element is designed as a spiral spring, which has a particularly good spring effect.
  • the spring element can also comprise several spiral springs which are connected in parallel and / or in series. Because the spring element is made of plastic, the spring constant is relatively small. The spring rate can be increased by connecting several springs in parallel. With spiral springs, this can be achieved by nesting several spiral springs inside one another. It is also conceivable to design a multi-start spiral spring, for example in the form of a two-thread or three-thread spiral spring.
  • the connection elements can be designed as pipe sockets. This enables the check valve to be integrated into a pipe arrangement, for example a cooling circuit. Both pipes and hoses can be attached to the pipe socket. The pipes or hoses can be connected to the pipe socket via a pipe clamp or materially via a welded connection. Alternatively, the connection elements can be designed as quick connectors. Advantageous quick connectors are known, for example, from EP 2 796 758 A1 or from EP 3 364 090 A1.
  • a cooling circuit according to the invention comprises a coolant guide and at least one check valve according to the invention.
  • the check valve can preferably be part of a coolant circuit of a cooling device of an electric vehicle.
  • the cooling device serves to control the temperature of essential components of the electric vehicle such as accumulators, electric motors, power electronics, charging adapters and plug connections.
  • the check valve according to the invention is, on the one hand, particularly light and, on the other hand, consists entirely of electrically insulating or electrically non-conductive components.
  • Fig. 1 is a check valve in partial section.
  • Figure 1 shows a check valve 1 comprising a first housing part 2, a second housing part 3 and an insert 4.
  • a spring element 5 and a valve body 6 are formed from the insert 4 and a valve seat 7 is formed from the first housing part 2.
  • the first housing part 2 and the second housing part 3 have connection elements 8 in the form of pipe sockets for connecting to fluid lines, for example pipes or hoses.
  • a holding body 9, which is supported on the second housing part 3, is formed from the insert 4.
  • a guide element 10 is formed from the insert 4, the guide element 10 being supported in sections on the housing inner wall of the first housing part 2.
  • the valve body 6 is disk-shaped and has a conically shaped circumferential edge, the circumferential edge resting in a sealing manner on the valve seat 7, which is shaped congruently to the valve body 6.
  • the spring element 5 is designed as a spiral spring and is fastened centrally to the valve body 6. In the present embodiment, the spiral spring is designed to be catchy. In alternative configurations, the spiral spring can also have multiple threads, for example two or three threads.
  • the guide element 10 is in turn arranged on the side of the valve body 6 facing away from the spring element 5.
  • the guide element 10 is supported in sections on the housing inner wall of the first housing part 2.
  • the guide element 10 has webs 11 which are arranged crosswise to one another and which are attached at the end to the side of the valve body 6 facing away from the spring element 5.
  • the webs 11 can come to rest on the radially outer edges of the housing inner wall of the first housing part 2 and thereby support the valve body 6.
  • the insert 4 with the spring element 5, valve body 6, holding body 9 and guide element 10 is made of the same material and is made in one piece from injection-mouldable plastic.
  • the insert 4 is made from POM.
  • the first housing part 2 and the second housing part 3 are made of injection-moldable plastic and are also made of POM.
  • the check valve 1 shown in the figure is part of a coolant circuit of a cooling device of an electric vehicle.
  • the cooling device serves to control the temperature of essential components of the electric vehicle such as accumulators, electric motors, power electronics, charging adapters and plug connections.
  • the check valve 1 shown in the figure is part of an air conditioning circuit of an air conditioning system.
  • the air conditioning system is preferably used for air conditioning a vehicle. If the same pressure prevails on both sides of the valve body 6, the
  • Valve body 6 sealingly on valve seat 7.
  • the valve body 6 is pressed against the valve seat 7 by the force of the spring element 5.
  • a fluid which flows via the spring element 5 in the direction of the valve body 6 is blocked by the valve body 6.
  • a fluid which flows from the direction of the guide element 10 in the direction of the valve body 6, on the other hand, can lift the valve body 6 from the valve seat 7 if the force exerted by the pressure of the fluid on the valve body 6 is greater than the force of the spring element 5
  • the valve body 6 lifts off the valve seat 7, the valve body 6 being evenly spaced from the valve seat 7 due to the guide element 10 and exposing an annular gap.
  • the fluid can pass the valve body 6 through the annular gap and flow through the check valve 1. Because the guide element 10 is designed in the form of a web, the fluid flow is only insignificantly impaired in this area.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

L'invention concerne un clapet antiretour (1) comprenant une première partie boîtier (2), une seconde partie boîtier (3) et un insert (4), un élément de ressort (5) et un corps de soupape (6) étant formés à partir de l'insert (4), un siège de soupape (7) étant formé à partir de la première partie boîtier (2), la première partie boîtier (2) et la seconde partie boîtier (3) présentant un élément de raccordement (8) destiné à être raccordé à une conduite de fluide, l'insert (4) étant formé à partir de plastique pouvant être moulé par injection. L'invention concerne également un circuit de liquide de refroidissement comprenant un guide de liquide de refroidissement et au moins un clapet antiretour (1), ainsi qu'un véhicule électrique comprenant un circuit de liquide de refroidissement.
EP21737442.0A 2020-07-02 2021-06-29 Clapet antiretour Pending EP4176189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202020103843.5U DE202020103843U1 (de) 2020-07-02 2020-07-02 Rückschlagventil
PCT/EP2021/067897 WO2022002966A1 (fr) 2020-07-02 2021-06-29 Clapet antiretour

Publications (1)

Publication Number Publication Date
EP4176189A1 true EP4176189A1 (fr) 2023-05-10

Family

ID=71844232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21737442.0A Pending EP4176189A1 (fr) 2020-07-02 2021-06-29 Clapet antiretour

Country Status (4)

Country Link
US (1) US20230258272A1 (fr)
EP (1) EP4176189A1 (fr)
DE (1) DE202020103843U1 (fr)
WO (1) WO2022002966A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4382783A1 (fr) * 2022-12-08 2024-06-12 TI Automotive Technology Center GmbH Clapet anti-retour

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889710A (en) * 1972-11-07 1975-06-17 Julien H Brost Check valve with elastomeric valve element
DE20116336U1 (de) * 2001-10-05 2001-12-06 Aerosol-Technik LINDAL GmbH, 23843 Bad Oldesloe Ventilanordnung für einen unter Druck stehenden Fluidbehälter
US6923202B2 (en) * 2002-06-01 2005-08-02 Halkey-Roberts Corporation Modular pressure relief valve
JP4552228B2 (ja) * 2005-03-02 2010-09-29 東海ゴム工業株式会社 バルブ内蔵コネクタ
DE202005011737U1 (de) * 2005-07-27 2005-10-13 Chen, Han-Lung, Tai Shan Hsiang Kunststoffbeutel
US20140110086A1 (en) * 2011-07-21 2014-04-24 Panasonic Corporation Cooling apparatus, electronic apparatus provided with same, and electric vehicle
EP2796758B1 (fr) 2013-04-23 2016-12-07 TI Automotive (Fuldabrück) GmbH Couplage
DE202014011547U1 (de) * 2013-11-28 2022-04-01 Sumitomo Rubber Industries, Ltd. Vorrichtung zum Abdichten und/oder Aufpumpen von Gegenständen und selbstverschliessende Schraubkupplung
KR101745239B1 (ko) * 2016-01-04 2017-06-08 현대자동차주식회사 냉각수 유동조절밸브 및 이를 이용한 연료전지 냉각시스템
KR102671320B1 (ko) * 2016-08-24 2024-06-03 한온시스템 주식회사 사판식 압축기의 흡입맥동 저감장치
EP3364090B1 (fr) 2017-12-11 2020-02-19 TI Automotive (Fuldabrück) GmbH Dispositif de raccordement permettant de raccorder deux éléments de transport de fluide

Also Published As

Publication number Publication date
DE202020103843U1 (de) 2020-07-13
US20230258272A1 (en) 2023-08-17
WO2022002966A1 (fr) 2022-01-06

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