WO2022255377A1 - Soupape régulatrice de pression pour dispositif d'accumulation d'énergie - Google Patents

Soupape régulatrice de pression pour dispositif d'accumulation d'énergie Download PDF

Info

Publication number
WO2022255377A1
WO2022255377A1 PCT/JP2022/022181 JP2022022181W WO2022255377A1 WO 2022255377 A1 WO2022255377 A1 WO 2022255377A1 JP 2022022181 W JP2022022181 W JP 2022022181W WO 2022255377 A1 WO2022255377 A1 WO 2022255377A1
Authority
WO
WIPO (PCT)
Prior art keywords
base member
valve
case
engaging portion
storage device
Prior art date
Application number
PCT/JP2022/022181
Other languages
English (en)
Japanese (ja)
Inventor
仁志 宮前
Original Assignee
株式会社パイオラックス
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 株式会社パイオラックス filed Critical 株式会社パイオラックス
Priority to PCT/JP2022/044789 priority Critical patent/WO2023233687A1/fr
Publication of WO2022255377A1 publication Critical patent/WO2022255377A1/fr

Links

Images

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/78—Cases; Housings; Encapsulations; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • H01M50/333—Spring-loaded vent valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an electricity storage device pressure release valve that is attached to a case in which an electricity storage device is accommodated and releases pressure within the case.
  • hybrid vehicles and electric vehicles use power storage devices such as batteries and capacitors, and these power storage devices are housed and arranged in a case installed inside the vehicle.
  • the electric storage device is, for example, a battery such as a lithium ion battery
  • the chemical reaction of the electrolytic solution generates gas, which may increase the pressure inside the case.
  • a pressure relief valve is attached to the case opening to reduce the pressure in the case.
  • Patent Literature 1 describes a pressure regulating unit that is installed in a housing and regulates the internal pressure, and discharges gas from the housing when the internal pressure is equal to or higher than a certain pressure to regulate the pressure.
  • a pressure regulating valve is described that includes a cover portion that maintains the pressure regulating portion in a sealed state.
  • the pressure regulator has a base that is attached to the opening of the housing.
  • the base portion is a cylindrical body and has a plurality of flexibly deformable legs formed through a plurality of axially extending slits.
  • locking projections are provided on the outer periphery of the distal end of each leg.
  • the pressure regulating valve of Patent Document 1 is attached to the opening of the housing using a plurality of flexurally deformable legs provided on the base.
  • the base portion is not fixed with bolts or nuts, it is relatively easy to attach the pressure regulating valve to the opening of the housing.
  • the fixing force of the base to the opening of the housing is relatively low, and the base tends to come off from the opening.
  • an object of the present invention is to provide a pressure release valve for an electricity storage device that is easy to attach to a case and is difficult to come off from the case.
  • the present invention provides an electricity storage device pressure release valve attached to a case in which an electricity storage device is accommodated, wherein the pressure release valve is a cylindrical pressure release valve that is inserted into and fixed to a case opening formed in the case. and a valve unit inserted inside the sealing member and fixed to the case via the sealing member, the valve unit separating the inner space and the outer space of the case.
  • a base member having a communicating vent, a valve seat provided on the periphery thereof, and a base member-side engagement portion that engages with the seal member; a valve body for opening and closing the vent port; and biasing means for biasing the valve body toward the valve seat.
  • a temporary engaging portion that engages with the base member side engaging portion at a predetermined insertion position, and a temporary engaging portion that engages with the base member side engaging portion at an insertion position deeper than the temporary engaging portion.
  • a main engaging portion is provided, the seal member is provided with a retaining portion that engages with the case, and the retaining portion engages the temporary engaging portion on the base member side.
  • the base member In a temporary holding state in which the base member is engaged, the base member can be bent inwardly. It is characterized by being configured to
  • the retaining portion of the sealing member when the valve unit and the sealing member are inserted into the case opening in a temporary holding state in which the base member side engaging portion is engaged with the temporary engaging portion of the sealing member, the retaining portion of the sealing member can be easily inserted into the case opening together with the valve unit.
  • the base member is positioned inside the retainer portion of the seal member.
  • the retainer portion of the seal member is prevented from bending inward, and the contraction of the diameter of the seal member is restricted, so that the valve unit can be firmly fixed to the case via the seal member.
  • FIG. 1 is an exploded perspective view showing an embodiment of an electrical storage device pressure release valve according to the present invention; It is a perspective view of the same electrical storage device pressure relief valve.
  • FIG. 4 is an enlarged perspective view of a lower member that constitutes the pressure release valve for the electric storage device;
  • Fig. 3 is an enlarged perspective view of a valve seat forming member that constitutes the pressure release valve for the electric storage device;
  • It is an enlarged perspective view showing an upper member that constitutes the pressure release valve for the electricity storage device.
  • Fig. 3 is an enlarged perspective view of a valve body that constitutes the pressure release valve for the electric storage device;
  • FIG. 3 is an enlarged perspective view of a cap that constitutes the pressure release valve for the electric storage device; It is a bottom view of the same cap.
  • Fig. 4 is an enlarged perspective view of a sealing member that constitutes the pressure release valve for the same electricity storage device;
  • FIG. 4 is an enlarged perspective view of a cover member that constitutes the pressure release valve for the electric storage device; It is cross-sectional explanatory drawing which shows the 1st assembly process of the pressure release valve for the electrical storage devices. It is cross-sectional explanatory drawing which shows the 2nd assembly process of the pressure release valve for the electrical storage devices. It is a cross-sectional explanatory view of the first step, showing a step of attaching the pressure release valve for the electricity storage device to the case.
  • FIG. 16 is a cross-sectional explanatory view when the valve body is separated from the valve seat and the vent is opened from the state shown in FIG. 15 ;
  • this electricity storage device pressure release valve 10 (hereinafter also simply referred to as “release valve 10") is attached to a case 1 that accommodates an electricity storage device (not shown), and is installed inside the case. It is for releasing (lowering) the pressure when the pressure rises.
  • Examples of the power storage device include batteries (lithium ion batteries, etc.), capacitors, capacitors, etc., which are used in hybrid vehicles including plug-in hybrid vehicles and electric vehicles. It is not particularly limited.
  • a case opening 3 is formed in the case 1. More specifically, the case 1 in this embodiment is formed with a substantially circular concave portion 2 . A substantially circular recess that is deeper than the recess 2 is provided from the bottom of the recess 2, a circular hole is formed in the center of the recess, and a cylindrical portion 3a protrudes from the periphery of the back side of the circular hole. ing. The cylindrical portion 3a and the inner periphery of the circular hole form the case opening 3. As shown in FIG. The bottom of the recess, which is deeper than the recess 2, forms the front peripheral edge 4 of the case opening 3. As shown in FIG. As shown in FIGS. 13 to 16, the internal space of the case 1 forms a case internal space R1, and the external space of the case 1 forms a case external space R2.
  • the release valve 10 in this embodiment includes a cylindrical sealing member 20 inserted into the case opening 3 and fixed, and a cylindrical sealing member 20 inserted inside the sealing member 20. and a valve unit 15 fixed to the case 1 via 20 . Further, the valve unit 15 has a vent hole 52 that communicates the case inner space R1 and the case outer space R2, and a valve seat 53 provided on the periphery thereof.
  • a base member provided with an engaging portion 45, a valve body 70 which is slidable with respect to the base member and which opens and closes the vent port 52, and biasing means which biases the valve body 70 toward the valve seat 53. have.
  • FIG. 11 in this embodiment, four parts, an upper member 60, a valve body 70, a cap 80, and a coil spring 90, are assembled to form a first assembly 15A. It has become. Similarly, as shown in FIG. 11, the lower member 40 and the valve seat forming member 50 are assembled to form a second assembly 15B.
  • the urging means in this embodiment is a coil spring 90 formed by winding a wire having a predetermined diameter with a predetermined pitch.
  • a cover member 30 is attached to the seal member 20. As shown in FIG. 12, a cover member 30 is attached to the seal member 20.
  • the "base member” in the present invention includes the lower member 40, the valve seat forming member 50 attached to the lower member 40 and provided with the valve seat 53, and the valve seat forming member 50 attached to the lower member 40. It is composed of an upper member 60 that is mounted. A cap 80 is attached to and integrated with the valve body 70 .
  • front side and “front side” refer to the side facing the case 1, and “back side” and “back side” are opposite to the “front side” and “front side”. means This also applies to other members (base member, seal member, valve member, cap, etc.) to be described later.
  • the insertion direction F of the release valve 10 into the case opening 3 (the direction of insertion of the release valve 10 into the case opening 3) is also simply referred to as "the insertion direction F”.
  • the direction of insertion of the first assembly 15A into the second assembly 15B (the direction of insertion of the first assembly 15A into the second assembly 15B) shown in FIG. 11 and the seal member 20 shown in FIG.
  • the direction in which the valve unit 15 is inserted is also referred to as the "insertion direction F".
  • the lower member 40 has a tubular portion 41 having a substantially cylindrical shape.
  • An arcuately rounded pressing portion 41a is provided on the outer periphery of the axial base end portion (the end portion on the insertion direction F side) of the tubular portion 41 .
  • an annular flange portion 42 extends from the outer periphery of the cylindrical portion 41 on the axial tip portion side (the end portion on the side opposite to the insertion direction F).
  • a plurality (here, four pieces) of engagement pieces 43 having engagement holes 43a are erected from the axial end surface of the cylindrical portion 41 at equal intervals.
  • a guide groove 43b is formed on the inner surface of the tip of each engaging piece 43 in the erecting direction.
  • This guide groove 43b is formed from the outer surface of the engaging piece 62 when the engaging piece 62 of the upper member 60 is inserted into the tubular portion 41 of the lower member 40 in order to assemble the lower member 40 and the upper member 60 together.
  • the projecting engaging claw 63 (see FIG. 5) is guided to facilitate engagement with the engaging hole 43a.
  • annular projection 44 protrudes toward the inside of the tubular portion 41 .
  • a base member-side engaging portion 45 having an annular projection shape is projected from a predetermined position in the axial direction (here, a position slightly closer to the base end side in the axial direction) on the outer circumference of the tubular portion 41 .
  • a tapered surface 45 a is formed on the base end outer surface of the base member side engaging portion 45 .
  • valve seat forming member 50 attached to the lower member 40 will be described with reference to FIGS. 4, 11, and the like.
  • the valve seat forming member 50 is made of, for example, an elastic material such as rubber or elastic elastomer, and has a substantially cylindrical cylindrical portion 51 .
  • the internal space of this cylindrical portion 51 forms a vent 52 .
  • the internal space R1 of the case 1 and the external space R2 of the case 1 communicate with each other through the vent 52.
  • a valve seat 53 is provided on the outer peripheral edge of the vent hole 52 on the axial end surface of the cylindrical portion 51 (the end surface on the side opposite to the insertion direction F).
  • a tapered surface 51a is formed on the outer circumference of the base end portion (the end portion on the side of the insertion direction F) of the cylindrical portion 51 in the axial direction.
  • an engagement groove 54 is formed on the outer periphery of the tubular portion 51 on the axial direction tip side, and has an annular groove shape, with which the annular protrusion 44 of the lower member 40 is engaged. Then, as shown in FIG. 11 , the cylindrical portion 51 is arranged on the inner circumference of the base end portion of the lower member 40 , and the engagement groove 54 thereof is engaged with the annular protrusion 44 of the lower member 40 , whereby the lower member 40 is A valve seat forming member 50 is attached to the member 40 . As a result, the lower member 40 is provided with the vent 52 and the valve seat 53 .
  • the upper member 60 has an annular base portion 61 having a substantially annular shape.
  • a plurality of engaging pieces 62 are vertically provided at equal intervals from the base end surface (the end surface on the insertion direction F side) of the annular base portion 61 .
  • four engaging pieces 62 are provided corresponding to the engaging pieces 43 of the lower member 40 .
  • Each engaging piece 62 is arranged inside the corresponding engaging piece 43 of the lower member 40 when the upper member 60 is assembled to the lower member 40 .
  • each engaging piece 62 is formed with an engaging claw 63 which is flexibly deformable through a substantially U-shaped slit 63a. 12, an engaging piece 62 is arranged inside the engaging piece 43 of the lower member 40, and the engaging claw 63 is inserted into the engaging hole 43a of the engaging piece 43 of the lower member 40.
  • the upper member 60 is attached to the lower member 40 by engaging the circumference.
  • annular ceiling portion 64 is arranged at the center of the annular base portion 61 in the radial direction and protruding from the annular base portion 61 . Further, the annular base portion 61 and the ceiling portion 64 are connected to each other by a plurality of ribs 65 radially extending from the axis of the upper member 60 . An opening 66 is formed between the adjacent ribs 65, 65 to allow communication between the inner space and the outer space of the base member. Further, a cylindrical portion 67 having a substantially cylindrical shape is vertically provided from the peripheral edge of the back side of the ceiling portion 64 .
  • valve body 70 slidably accommodated within the base member will be described with reference to FIGS. 6, 11 and the like.
  • the valve body 70 has a flange portion 72 that contacts and separates from the valve seat 53 and a shaft portion 71 that protrudes from the radial center of the front side of the flange portion 72 .
  • the shaft portion 71 has a substantially cylindrical shape with a closed top surface 71a at the axial tip (the end opposite to the insertion direction F). It can also be said that the flange portion 72 has a shape that expands annularly from the outer circumference of the base end portion (the end portion on the insertion direction F side) of the shaft portion 71 in the axial direction.
  • the shaft portion 71 is arranged coaxially with the cylindrical portion 67 of the upper member 60 and is slidably inserted into and supported by the cylindrical portion 67 . .
  • the flange portion 72 of the valve body 70 is arranged to face the ceiling portion 64 and the rib 65 of the upper member 60 .
  • the flange portion 72 has a circular outer periphery and an outer diameter that is larger than the inner diameter of the cylindrical portion 51 of the valve seat forming member 50 , and contacts and separates from the valve seat 53 to form the vent hole 52 . It opens and closes.
  • the outer diameter of the flange portion 72 is formed to have a dimension that substantially matches the inner diameter of the plurality of engaging pieces 62 of the upper member 60 (see FIG. 13). It slides up and down while being restrained.
  • annular recess 72a recessed to a predetermined depth is formed in the inner diameter portion of the front side of the flange portion 72, and one end (base end in the axial direction) of the coil spring 90 abuts against the bottom surface of the annular recess 72a. supported by Furthermore, on the back side of the flange portion 72, a seal projection portion 73 in the form of an annular projection protrudes from the outer peripheral portion thereof. The seal projection 73 contacts and separates from the valve seat 53 of the valve seat forming member 50 to open and close the vent 52 (see FIGS. 15 and 16).
  • the coil spring 90 which is the biasing means, will be described.
  • the coil spring 90 is arranged on the outer circumference of the cylindrical portion 67 of the upper member 60 into which the shaft portion 71 of the valve body 70 is inserted, and one end of the coil spring 90 is attached to the annular flange portion 72 of the valve body 70 .
  • the other end (tip in the axial direction) is in contact with and supported by the bottom surface of the recessed portion 72a, and the other end (tip in the axial direction) is in contact with and supported by the back side peripheral edge portion of the cylindrical portion 67 of the ceiling portion 64 of the upper member 60 .
  • the coil spring 90 is accommodated and held in a compressed state within the base member to urge the valve body 70 toward the valve seat 53 .
  • a protrusion 75 protrudes from the center in the radial direction of the ceiling surface 71a of the shaft portion 71, and a band-like retaining piece 75a is continuously provided at the tip of the protrusion 75.
  • the protrusion 75 and the retainer piece 75a are inserted into the shaft insertion hole 84a of the cap 80, and the retainer piece 75a is inserted into the shaft insertion hole when the valve body 70 is rotated by a predetermined angle. It engages with the front peripheral edge of 84a.
  • cap 80 fixed and integrated with the valve body 70 will be described with reference to FIGS.
  • the cap 80 of this embodiment includes a substantially circular plate-shaped ceiling portion 81, a peripheral wall 83 extending obliquely outwardly from the outer periphery of the ceiling portion 81, and a base end portion (inserted portion) of the peripheral wall 83. It has a seal flange portion 85 extending annularly from the outer periphery (the end on the direction F side). As shown in FIG. 15, the cap 80 has a shape with a larger diameter than the outer circumferences of the lower member 40 and the upper member 60 so as to cover the entire base member.
  • the plurality of openings 66 formed in the lower member 40 can be opened and closed by bringing the seal flange portion 85 into contact with and separating from the flange portion 32 of the cover member 30 constituting the seal member 20 (FIG. 15). and FIG. 16).
  • a retaining recess 84 having a circular concave shape with a predetermined depth is formed on the front side of the ceiling part 81 and in the center part in the radial direction thereof.
  • a keyhole-shaped shaft insertion hole 84a is formed at the bottom of the retaining recess 84.
  • a pair of retaining protrusions 84b, 84b are provided at the bottom of the retaining recess 84 and at the outer peripheral edge of the shaft insertion hole 84a.
  • the cap 80 is rotated by 90° so that the retainer piece 75a is aligned with the outer periphery of the shaft insertion hole 84a.
  • the cap 80 is held against the valve body 70 so that the valve body 70 and the cap 80 are integrated.
  • one end of the retaining piece 75a is fitted between the pair of retaining protrusions 84b, 84b to prevent the cap 80 from rotating with respect to the valve body .
  • the cap 80 As a result of the cap 80 being integrated with the valve body 70 in this manner, the cap 80 also approaches the front side of the upper member 60 that constitutes the base member as the valve body 70 slides with respect to the base member.
  • the seal flange portion 85 moves away from the flange portion 32 of the cover member 30 and separates from the flange portion 32 .
  • sealing member 20 will be described with reference to FIGS. 9, 12 to 15, and the like.
  • the seal member 20 is made of an elastic material such as rubber or elastic elastomer, and has a substantially cylindrical body portion 21 .
  • a tubular portion 41 of a lower member 40 is inserted into the body portion 21 .
  • a pair of annular protrusions 22 and 23 are arranged side by side on the outer periphery of the main body 21 and at the tip in the axial direction (the end on the side opposite to the insertion direction F). is set.
  • the annular protrusion 22 protrudes from the outer circumference of the distal end of the main body 21 in the axial direction. end), and has a larger diameter than the annular protrusion 22 .
  • the annular protrusion 23 is a portion of the case 1 that abuts against the front peripheral edge portion 4 of the case opening 3 .
  • annular mounting groove 24 is formed on the outer circumference of the main body 21 and between the two annular protrusions 22 and 23 .
  • the cover member 30 is attached to the seal member 20 through the attachment groove 24 .
  • the cover member 30 includes a substantially cylindrical tubular portion 31 and a thin annular flange portion 32 extending from the axial tip of the tubular portion 31 (the end opposite to the insertion direction F). and a mounting projection that forms an annular projection protruding from the inner periphery of the axial base end (the end on the insertion direction F side) of the cylindrical portion 31 and is inserted into the mounting groove 24 of the seal member 20. 33.
  • An axial end portion of the body portion 21 of the seal member 20 can be inserted into the cylindrical portion 31 .
  • the flange portion 32 is arranged so as to face the front peripheral edge portion 4 of the case opening 3 with a predetermined gap in a state where the release valve 10 is fixed to the case opening 3 (see FIG. 14). ).
  • a temporary engagement portion 25 that engages with the base member-side engagement portion 45 of the base member at a predetermined insertion position when the valve unit 15 is inserted into the seal member 20 is provided on the inner circumference of the seal member 20;
  • a final engaging portion 26 that engages with the base member side engaging portion 45 of the base member at an insertion position deeper than the temporary engaging portion 25 is provided.
  • the inner periphery of the main body portion 21 of the seal member 20 is hollowed out on the tip end side in the axial direction.
  • a portion 21a is provided.
  • a provisional engagement portion 25 having an annular projection shape is projected radially inward of the main body portion 21 from the axial tip of the inner circumference of the main body portion 21 via the gouged portion 21a.
  • the valve unit 15 is attached to the seal member 20 by engaging the base member side engaging portion 45 on the base member side with the rear peripheral portion of the temporary engaging portion 25 .
  • the temporary engaging portion 25 is arranged at the same height in the axial direction as the annular protrusion 22 . That is, the annular projection 22 and the temporary engaging portion 25 are provided on the outer and inner circumferences of the axial tip of the body portion 21 , respectively.
  • the gouged portion 21a is formed such that the tapered surface 45a of the base member side engaging portion 45 and the main body portion 21 are in a state where the base member side engaging portion 45 is engaged with the temporary engaging portion 25.
  • a clearance can be secured with respect to the inner periphery, and the valve unit 15 can be easily pushed into the body portion 21 of the seal member 20 .
  • the inner side of the main body 21 is directed toward the proximal end in the axial direction of the main body 21.
  • a tapered surface 25a is formed in which the amount of protrusion gradually increases.
  • An annular groove having a predetermined depth is formed on the inner periphery of the body portion 21 at an axially intermediate position, here, at a position adjacent to the top portion of the tapered surface 25a (the portion where the amount of protrusion inward of the body portion is the largest).
  • a groove-shaped main engagement portion 26 is formed. Then, as shown in FIG. 15, the base member side engaging portion 45 on the base member side is inserted into the main engaging portion 26, and the base member side engaging portion 45 is engaged with the main engaging portion 26.
  • the valve unit 15 is permanently fixed to the seal member 20 by engaging with the inner peripheral surface on the tip end side in the axial direction.
  • the sealing member 20 is provided with a retaining portion 27 that engages with the case 1 . Further, the sealing member 20 is arranged so that the outer peripheral surface thereof engages with the case 1 in a fully fixed state in which the main engaging portion 26 of the sealing member 20 is engaged with the base member side engaging portion 45 of the base member. (In this embodiment, as shown in FIG. 15, an engaging protrusion 29 provided on the outer peripheral surface of the proximal end of the retaining portion 27 engages with the rear peripheral edge of the case opening 3.).
  • the retaining portion 27 can be bent inward in a temporary holding state in which the temporary engaging portion 25 of the sealing member 20 is engaged with the base member side engaging portion 45 of the base member (see FIG. 14).
  • the base member In the fully fixed state in which the base member-side engaging portion 45 of the base member is engaged with the main engaging portion 26 of the sealing member 20, the base member is positioned inside the retaining portion 27, so that the base member prevents the seal member from coming off.
  • the diameter reduction of the stop portion 27 is regulated, and is configured to engage with the back side peripheral portion of the case opening 3 (see FIG. 15).
  • the retaining portion 27 is located at a position on the base end side of the main body portion 21 of the seal member 20 relative to the main engaging portion 26 in the axial direction (relative to the case opening 3 relative to the main engaging portion 26). (position on the insertion direction F side) so as to be flexibly deformable.
  • a pressing projection 28 having an annular projection shape is projected from the inner peripheral surface of the retainer portion 27 and from the most proximal end in the axial direction.
  • this pressing protrusion 28 constitutes a "protrusion" in the present invention.
  • the inner diameter dimension of the pressing protrusion 28 is formed smaller than the outer diameter dimension of the cylindrical portion 41 of the lower member 40 . Therefore, when the valve unit 15 is further pushed into the sealing member 20 from the temporary holding state of the valve unit 15 in which the valve unit 15 is temporarily held by the sealing member 20 as shown in FIG.
  • the pressing protrusion 28 is pressed by the pressing portion 41a on the outer periphery of the base end portion of the shaped portion 41, so that the retainer portion 27 can be bent and deformed toward the outside of the seal member 20. As shown in FIG.
  • a taper surface 28a is formed on the outer surface of the pressing protrusion 28, the amount of protrusion gradually increasing toward the insertion direction F side.
  • an engaging projection 29 having an annular projection shape is projected from the most proximal end in the axial direction on the outer peripheral surface of the retaining portion 27 .
  • the retaining portion 27 in this embodiment has a pressing protrusion 28 and an engaging protrusion 29 extending from the inner peripheral surface and the outer peripheral surface of the proximal end in the axial direction (the most distal end on the side of the insertion direction F with respect to the case opening 3).
  • Each has a protruding configuration.
  • the engaging projection 29 is pushed by the retaining portion 27 via the pressing projection 28, and is flexurally deformed outward of the seal member 20. (back side end surface of tubular portion 3a).
  • the engaging protrusion 29 and the annular protrusion 23 are arranged so as to sandwich the case opening 3 of the case 1 (here, the portion from the front side of the case opening 3 to the proximal end of the cylindrical portion 3a). It has become.
  • a tapered surface 29a is formed on the outer surface of the engaging protrusion 29 so that the amount of protrusion gradually decreases toward the insertion direction F side.
  • the tapered surface 29a facilitates insertion of the body portion 21 of the seal member 20 into the case opening 3.
  • the outer diameter of the engaging protrusion 29 (the outer diameter of the most protruding top portion) is formed larger than the inner diameter of the case opening 3 of the case 1 . Therefore, as shown by arrow F in FIG. 13, when the valve unit 15 is inserted into the case opening 3, the top of the engaging protrusion 29 and the tapered surface 29a are pressed against the inner periphery of the case opening 3. , the retaining portion 27 is flexurally deformed inwardly of the seal member 20 .
  • valve unit 15 is put into a temporary holding state or a permanently fixed state in the following manner.
  • the cylindrical portion 41 of the lower member 40 is not arranged inside the retaining portion 27 , so that the retaining portion 27 can bend and deform inward of the seal member 20 .
  • the retainer portion 27 of the seal member 20 is positioned further in the insertion direction than the base end of the cylindrical portion 41 of the lower member 40 in the temporary holding state in which the base member-side engaging portion 45 is engaged with the temporary engaging portion 25 . It can also be said that it extends long toward the F side.
  • the base member side engaging portion 45 When the valve unit 15 is further pushed in the insertion direction F side with respect to the seal member 20 from the above temporary holding state, the base member side engaging portion 45 is disengaged from the temporary engaging portion 25, and the gouged portion 21a moves a predetermined distance. After the movement, the base member side engaging portion 45 slides on the tapered surface 25a inside the main body portion 21, and when the base member side engaging portion 45 is inserted into the main engaging portion 26, the base member side engaging portion 45 slides. The member-side engaging portion 45 engages with the inner peripheral surface of the main engaging portion 26 on the tip end side in the axial direction, and the valve unit 15 is permanently fixed to the sealing member 20 at the insertion position deeper than the temporary holding state. (See FIG. 15).
  • the tapered surface 28a of the pressing projection 28 of the retaining portion 27 is pressed against the pressing portion 41a of the cylindrical portion 41 of the lower member 40, and the retaining portion 27 is pushed outward from the sealing member 20.
  • the engaging projection 29 on the outer circumference of the base end of the retainer 27 engages with the rear peripheral edge of the case opening 3 (the rear peripheral edge of the cylindrical portion 3a of the case opening 3).
  • the valve unit 15 is fixed to the case opening 3 via the sealing member 20 .
  • the retainer portion 27 suppresses the inward bending deformation of the seal member 20. As a result, the diameter reduction is regulated.
  • the case 1 has a configuration in which the case openings 3 are provided at the bottoms of a plurality of recesses.
  • a configuration in which a case opening is provided may be employed.
  • the shape of the case opening may be rectangular, square, elliptical, or the like, as long as the shape allows attachment of the release valve.
  • sealing member cover member, lower member, valve seat forming member, upper member, valve body, cap, etc. that constitute the pressure release valve are not limited to the above modes.
  • the main body of the seal member, the tubular portion of the cover member, the tubular portion of the lower member, the tubular portion of the valve seat forming member, etc. are cylindrical. Alternatively, it may be in the shape of a square tube or the like.
  • the flange portion of the valve body has a circular outer periphery corresponding to the shapes of the valve seat forming member and the cylindrical portion of the upper member, but may have an elliptical shape, a rectangular shape, or the like. It may have any shape as long as it can open and close the vent by coming into contact with and separating from the valve seat of the valve seat forming member.
  • the sealing member 20 and the cover member 30, and the lower member 40 and the valve seat forming member 50 are separate members.
  • the sealing member and the cover member, and the lower member and the valve seat forming member are formed by so-called two-color molding, in which the sealing member and the valve seat forming member are molded while holding them in the same mold. It may be integrally formed.
  • an engaging piece 43 having an engaging hole 43a is provided on the lower member 40 side, and an engaging hole 43a is provided on the upper member 60 side.
  • the lower member may be provided with engaging claws and engaging legs, and the upper member may be provided with engaging holes for engaging them.
  • the engagement structure between the member and the lower member is not particularly limited.
  • the cylindrical portion 67 is provided on the upper member 60 side, and the shaft portion 71 is provided on the flange portion 72 side of the valve body 70 (see FIG. 11).
  • a tubular portion may be provided on the flange portion side, and a shaft portion may be provided on the upper member side so as to be inserted into the tubular portion and slidably supported.
  • the retaining portion 27 of the seal member 20 in this embodiment has a cylindrical wall shape that is continuous in an annular shape.
  • the continuous cylindrical wall or the plurality of flexible pieces as described above may be arranged along the axis of the sealing member; (3) The continuous cylindrical wall or the plurality of flexible pieces may bulge in the axial direction. You may provide a part. That is, the retainer has a structure that can be engaged with the case (a structure that can be engaged with the peripheral edge of the back side of the case opening) when the base member side engaging portion engages with the main engaging portion to achieve the final fixing state. ), and the base member is positioned inside the main fixing state, and the diameter reduction of the retainer portion can be restricted by the base member.
  • the pressing protrusion 28 and the engaging protrusion 29 are provided on the inner and outer peripheral surfaces of the retainer 27, but one or both of these protrusions may be absent. . If the pressing protrusion 28 is not provided on the inner peripheral surface of the retainer portion 27, the inner peripheral surface of the retainer portion will be pushed when the base member side engaging portion engages with the main engaging portion to achieve the final fixing state. , It is preferable to have a structure that can be expanded from the inside by the outer peripheral surface of the valve unit (for example, the size of the inner periphery of the proximal end of the retainer is smaller than the size of the outer periphery of the proximal end of the valve unit). do).
  • the retaining portion is attached to the case when the main engaging portion is engaged with the base member side engaging portion to achieve the final fixing state. It is sufficient if it can be engaged (for example, if a pressing protrusion 28 is provided on the inner peripheral surface of the retaining portion 27, the retaining portion 27 can be pushed open from the inside when the valve unit or the seal member is finally fixed. , the outer peripheral surface thereof can be engaged with the back side peripheral edge of the case opening 3).
  • the base member of this embodiment is a case-shaped valve case that slidably accommodates the valve body in the inner space of the lower member and the upper member. It may have any shape and structure as long as it has a seat, an engaging portion is provided on the outer periphery, and the valve body can be slidably supported.
  • the upper member 60 of this embodiment has a plurality of openings 66 which are opened and closed by a cap 80.
  • the configuration is such that the upper member does not have openings without providing caps.
  • any shape or structure may be used as long as the internal space and the external space of the case can be communicated with each other when the valve body is separated from the valve seat and the vent is opened.
  • the axial tip of the coil spring 90 is arranged on the outer periphery of the cylindrical portion 67 of the upper member 60, and the axial tip of the coil spring 90 is supported by the back side peripheral edge of the ceiling portion 64 in contact with it.
  • the shaft portion 71 of the valve body 70 is inserted through the opening on the back side of the cylindrical portion 67 of the upper member 60 , and the base end of the coil spring 90 is supported in contact with the bottom surface of the annular recess 72a of the valve body 70 .
  • the cap 80 is placed on the front side of the upper member 60, and the projection 75 and the retainer piece 75a of the valve body 70 are aligned with the shaft insertion hole 84a (see FIG. 8).
  • the cap 80 is rotated by 90° to engage the retainer 75a with the front peripheral edge of the shaft insertion hole 84a, and one end of the retainer piece 75a is attached to the pair of retainer protrusions 84b, 84b (Fig. 8), the cap 80 can be attached to the valve body 70 in a state in which the cap 80 is prevented from coming off from the valve body 70 and its rotation is restricted.
  • the first assembly 15A consisting of four parts, the upper member 60, the valve body 70, the cap 80, and the coil spring 90, is assembled.
  • the coil spring 90 is interposed between the upper member 60 and the valve body 70 in a compressed state, and the flange portion 72 of the valve body 70 is attached in a direction away from the ceiling portion 64 of the upper member 60. It is designed to be enforced.
  • the tubular portion 51 of the valve seat forming member 50 is inserted into the inner circumference of the base end portion of the lower member 40, and the engagement groove 54 of the valve seat forming member 50 is engaged with the lower member 40.
  • the valve seat forming member 50 can be attached to the lower member 40 by engaging the annular protrusion 44 .
  • the second assembly 15B composed of two parts, the lower member 40 and the valve seat forming member 50, is assembled.
  • the first assembly 15A is pushed into the second assembly 15B.
  • the plurality of engaging pieces 62 of the upper member 60 are inserted into the cylindrical portion 41 of the lower member 40, and the engaging claws 63 engage corresponding engaging members on the lower member 40 side.
  • the valve unit 15 is assembled by assembling the first assembly 15A and the second assembly 15B with each other by engaging with the engagement hole 43a of the joint piece 43. As shown in FIG.
  • the mounting protrusion 33 of the cover member 30 is inserted into the mounting groove 24 of the seal member 20 and sandwiched between the pair of annular protrusions 22 and 23, whereby the seal member 20 and the cover member are attached. 30 can be worn.
  • the valve unit 15 is pushed in the insertion direction F side as shown by the arrow F in FIG.
  • the base member side engaging portion 45 of the lower member 40 engages with the back side peripheral portion of the temporary engaging portion 25 of the sealing member 20 , so that the sealing member 20 is relatively flat.
  • the valve unit 15 is temporarily held at the shallow insertion position.
  • the release valve 10 consisting of the valve unit 15 and the seal member 20 is constructed.
  • the retaining portion 27 is flexurally deformable inward of the seal member 20 .
  • the release valve 10 in this embodiment is transported with the valve unit 15 temporarily held by the seal member 20 .
  • the release valve 10 is aligned with the case opening 3, and the release valve 10 is inserted from the front side of the case opening 3 as indicated by the arrow F in FIG. Then, the engagement projection 29 of the seal member 20 is pressed against the inner periphery of the case opening 3 , and the retaining portion 27 is flexed and deformed inward of the seal member 20 . After that, the release valve 10 is pushed into the case opening 3 until the annular projection 22 of the sealing member 20 abuts against the front peripheral edge portion 4 of the case opening 3, and the engaging projection 29 of the sealing member 20 contacts the case. When the seal member 20 is pulled out of the back side opening of the tubular portion 3a of the opening 3, the retaining portion 27 of the sealing member 20 is elastically restored.
  • the engaging projection 29 of the retainer 27 is arranged with a slight gap from the back side end surface of the cylindrical portion 3a of the case opening 3, and the case opening 3 is sealed.
  • the member 20 is temporarily fixed and thus the release valve 10 can be temporarily fixed in the case opening 3 . Even in this state, the retaining portion 27 can be bent inwardly of the seal member 20 .
  • valve unit 15 is pushed into the sealing member 20 temporarily fixed to the case opening 3.
  • the valve unit 15 is pushed in until the flange portion 42 of the lower member 40 comes into contact with the annular protrusion 22 and the temporary engagement portion 25 of the body portion 21 of the seal member 20 .
  • the base member side engaging portion 45 of the lower member 40 is disengaged from the temporary engaging portion 25 of the sealing member 20, and the base member side engaging portion 45 is inserted into the main engaging portion 26 of the sealing member 20. .
  • the base member-side engaging portion 45 engages with the inner peripheral surface of the main engaging portion 26 on the distal end side in the axial direction, and the pressing protrusion 28 is formed into the tubular shape of the lower member 40.
  • the retaining portion 27 is flexurally deformed toward the outside of the sealing member 20 , and the engaging protrusion 29 engages with the rear peripheral edge of the cylindrical portion 3 a of the case opening 3 . That is, the retainer portion 27 is pushed outward through the pressing protrusion 28, and the engaging protrusion 29 provided on the outer periphery of the retainer portion 27 is strongly attached to the back side peripheral edge of the cylindrical portion 3a of the case opening 3.
  • the engaging projection 29 engages with the back side peripheral edge of the tubular portion 3a of the case opening 3 without any gap.
  • valve unit 15 is permanently fixed to the seal member 20 at an insertion position deeper than the temporary holding state of the valve unit 15 shown in FIG.
  • the proximal end portion of the tubular portion 3a is held from the front side of the case opening 3 by the engaging protrusion 29 of the valve unit 15 and the sealing member 20 with respect to the case opening 3, as shown in FIG.
  • the entire release valve 10 can be attached to the case 1 by being permanently fixed via the .
  • the cylindrical portion 41 of the lower member 40 is arranged inside the retainer portion 27, so that the retainer portion 27 is restrained from bending inwardly of the seal member 20.
  • the temporary engagement portion 25 of the seal member 20 is engaged with the base member side engagement portion 45 of the base member of the valve unit 15 in a temporary holding state, as shown in FIG. , when the valve unit 15 and the seal member 20 are inserted into the case opening 3 of the case 1, the retaining portion 27 of the seal member 20 can bend toward the inside of the seal member 20. 20 can be easily inserted into the case opening 3 (see FIG. 14). In this state, as shown by arrow F in FIG. 14, the valve unit 15 is further inserted to engage the main engagement portion 26 of the seal member 20 with the base member side engagement portion 45 of the base member.
  • the base member is positioned inside the retaining portion 27 (here, the tubular portion 41 of the lower member 40 constituting the base member is positioned inside the retaining portion 27), and the base member provides a seal. Since the retaining portion 27 of the member 20 does not bend toward the inside of the sealing member 20 and restricts its diameter reduction, the valve unit 15 can be firmly fixed to the case opening 3 via the sealing member 20. can be done. As a result, it is possible to obtain the release valve 10 that is easy to attach to the case 1 and that is difficult to come off from the case 1 .
  • valve body 70 is urged toward the valve seat forming member 50 by the coil spring 90 held in the compressed state within the base member, and the back side of the flange portion 72 of the valve body 70 is pushed. , the seal projection 73 contacts the valve seat 53 to close the air vent 52 . Furthermore, the cap 80 integral with the valve body 70 is biased toward the cover member 30 via the coil spring 90, and the seal flange portion 85 contacts the front side of the flange portion 32 of the cover member 30. A plurality of openings 66 of the upper member 60 are closed.
  • gas is generated in the case due to the power storage device due to the power supply to the drive source and electrical components by the power storage device, the external environment and the internal environment of the case in which the power storage device is housed (for example, lithium ion
  • a power storage device such as a battery supplies electric power by driving a motor or the like
  • a gas is generated by a chemical reaction of the electrolyte solution
  • the vent hole 52 of the valve seat forming member 50 is opened, and the cap 80 integral with the valve body 70 moves away from the front side of the cover member 30 in conjunction with the valve body 70, and the upper A plurality of openings 66 in member 60 are opened.
  • the internal space R ⁇ b>1 and the external space R ⁇ b>2 of the case 1 communicate with each other through the vent hole 52 of the valve seat forming member 50 and the plurality of openings 66 of the upper member 60 .
  • the gas in the internal space R1 of the case 1 passes through the case opening 3, the vent 52 of the valve seat forming member 50, and the opening 66 of the upper member 60, as indicated by the arrow L in FIG. 1, the pressure inside the case 1 can be released (reduced).
  • a protrusion (pressing protrusion 28) is provided on the inner peripheral surface of the sealing member 20.
  • the pressing protrusion 28 is attached to the main engaging portion 26 of the sealing member 20, It is configured such that the retainer portion 27 is pressed by the base member to expand the diameter thereof in the permanently fixed state in which the base member-side engaging portion 45 of the base member is engaged.
  • the retainer portion 27 is pressed by the base member to expand the diameter of the retainer portion 27.
  • the seal member 20 can be more firmly fixed to the case opening 3 .
  • the valve body 70 has a flange portion 72 that contacts and separates from the valve seat 53, and the base member includes the lower member 40 provided with the valve seat 53 and the lower member 40 attached to the lower member 40.
  • a cylindrical portion 67 is formed on the upper member 60 side, and a shaft portion 71 that is inserted into the cylindrical portion 67 and slide-supported is formed on the flange portion 72 to provide biasing force.
  • the means consists of a coil spring 90 , one end of which is supported by the flange portion 72 of the valve body 70 and the other end of which is supported by the upper member 60 .
  • the lower member 40 and the upper member 60 while maintaining the coil spring 90, which is the biasing means, in a compressed state, so that the assembling workability of the valve unit 15 can be improved. That is, by using the shaft portion 71 of the valve body 70 and the cylindrical portion 67 that slides and supports the coil spring 90, the coil spring 90 is maintained in a posture (straight posture without tilting) along the axis of the valve body 70. Since the lower member 40 and the upper member 60 can be assembled while compressing the coil spring 90, the assembling workability of the valve unit 15 is good (if the posture of the coil spring 90 cannot be maintained, the elastic force of the coil spring 90 will affect it). , making it difficult to assemble). Further, the same effect can be obtained when the tubular portion is formed on the flange portion side and the shaft portion that is inserted into the tubular portion and slide-supported is formed on the upper portion side.
  • Case 3 Case opening 10 Pressure release valve for power storage device (release valve) 15 Valve unit 20 Sealing member 25 Temporary engaging portion 26 Main engaging portion 27 Retaining portion 28 Pressing protrusion 40 Lower member 45 Base member side engaging portion 50 Valve seat forming member 52 Vent 53 Valve seat 60 Upper member 67 Cylinder Part 70 Valve body 71 Shaft part 72 Flange part 80 Cap 90 Coil spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne une soupape régulatrice de pression pour un dispositif d'accumulation d'énergie qui est facilement fixé à un boîtier et n'est pas facilement séparé du boîtier. Une soupape régulatrice de pression 10 pour un dispositif d'accumulation d'énergie comprend un élément d'étanchéité cylindrique 20 et une unité soupape 15, l'unité soupape 15 comporte un élément de base pourvu d'une partie de mise en prise côté élément de base 45, un corps de soupape 70, et un ressort hélicoïdal 90, une partie de mise en prise temporaire 25 qui vient en prise avec la partie de mise en prise côté élément de base 45 de l'élément de base à une position d'insertion prédéfinie et une partie de mise en prise principale 26 qui vient en prise avec la partie de mise en prise côté élément de base 45 de l'élément de base à une position d'insertion plus profonde sont disposées sur la surface périphérique interne de l'élément d'étanchéité 20, une partie de retenue 27 est disposée sur la surface périphérique externe de l'élément d'étanchéité 20, la partie de retenue 27 peut fléchir vers l'intérieur dans l'état maintenu temporairement et la réduction de son diamètre est régulée par l'élément de base à l'état fixe.
PCT/JP2022/022181 2021-06-04 2022-05-31 Soupape régulatrice de pression pour dispositif d'accumulation d'énergie WO2022255377A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/044789 WO2023233687A1 (fr) 2021-06-04 2022-12-05 Soupape de surpression pour dispositifs de stockage d'énergie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-094305 2021-06-04
JP2021094305 2021-06-04

Publications (1)

Publication Number Publication Date
WO2022255377A1 true WO2022255377A1 (fr) 2022-12-08

Family

ID=84323457

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2022/022181 WO2022255377A1 (fr) 2021-06-04 2022-05-31 Soupape régulatrice de pression pour dispositif d'accumulation d'énergie
PCT/JP2022/044789 WO2023233687A1 (fr) 2021-06-04 2022-12-05 Soupape de surpression pour dispositifs de stockage d'énergie

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/044789 WO2023233687A1 (fr) 2021-06-04 2022-12-05 Soupape de surpression pour dispositifs de stockage d'énergie

Country Status (1)

Country Link
WO (2) WO2022255377A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118380718A (zh) * 2024-06-21 2024-07-23 蜂巢能源科技股份有限公司 一种单体电池

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0368578U (fr) * 1989-11-07 1991-07-05
JP2017096309A (ja) * 2015-11-18 2017-06-01 株式会社パイオラックス チェックバルブ
JP2020021897A (ja) * 2018-08-03 2020-02-06 日本ケミコン株式会社 調圧弁、その製造方法、および蓄電デバイスモジュール
JP2020194719A (ja) * 2019-05-29 2020-12-03 株式会社ニフコ 電池パック用圧力解放弁

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445157B (sv) * 1981-09-25 1986-06-02 Nordiska Ackumulator Fabriker Anordning for tillslutning av ett ackumulatorkerl
DE19527526A1 (de) * 1995-07-27 1997-01-30 Hagen Batterie Ag Stopfenanordnung zum Verschließen einzelner Zellenöffnungen eines Akkumulators
JP2011222137A (ja) * 2010-04-02 2011-11-04 Toshiba Shomei Precision Kk 密閉型電池用の封口装置、及び密閉型電池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0368578U (fr) * 1989-11-07 1991-07-05
JP2017096309A (ja) * 2015-11-18 2017-06-01 株式会社パイオラックス チェックバルブ
JP2020021897A (ja) * 2018-08-03 2020-02-06 日本ケミコン株式会社 調圧弁、その製造方法、および蓄電デバイスモジュール
JP2020194719A (ja) * 2019-05-29 2020-12-03 株式会社ニフコ 電池パック用圧力解放弁

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118380718A (zh) * 2024-06-21 2024-07-23 蜂巢能源科技股份有限公司 一种单体电池

Also Published As

Publication number Publication date
WO2023233687A1 (fr) 2023-12-07

Similar Documents

Publication Publication Date Title
WO2022255377A1 (fr) Soupape régulatrice de pression pour dispositif d'accumulation d'énergie
JP6293771B2 (ja) パージ用接続部を備えた基板容器
US7807282B2 (en) Nickel-metal hydride storage battery
CN106838381B (zh) 单向阀
JPWO2004076894A1 (ja) リップ型シール
CN112821006A (zh) 泄压装置
GB2532338A (en) Check valve
US7504175B2 (en) Battery having a cover and a degassing channel system sealed with annular projections and sealing elements
JP5421465B2 (ja) キャップ取付け構造
WO2022255376A1 (fr) Soupape de surpression pour un dispositif de stockage d'énergie
WO2023127416A1 (fr) Soupape de surpression pour un dispositif de stockage d'énergie
JP2012193778A (ja) 燃料電池用圧力開放弁及び燃料電池用燃料タンク
JP2023016323A (ja) 蓄電デバイス用圧力解放弁
JP2008531360A (ja) 燃料パイプ組立体の取付け装置と組立方法
CN114110221A (zh) 泄压装置
CN214368424U (zh) 扣脱式管接头
CN112821005A (zh) 泄压装置的安装座
JP2023018341A (ja) 蓄電デバイス用圧力解放弁
JP2023006229A (ja) 蓄電デバイス用ガス排出装置
CN220540188U (zh) 限制阀、空气悬架系统及车辆
JP2574000Y2 (ja) ホース内蔵型逆止弁
JP5861837B2 (ja) スプリングリテーナ組付方法、スプリングリテーナ及び組付治具
WO2024058126A1 (fr) Appareil d'échappement de gaz pour dispositif de stockage d'énergie
US20240175497A1 (en) Valve device
CN219832478U (zh) 一种按键安装结构及雾化装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22816123

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22816123

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP