CN107706681A - Power distribution means for frozen products insulated container supply of electric power - Google Patents

Power distribution means for frozen products insulated container supply of electric power Download PDF

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Publication number
CN107706681A
CN107706681A CN201710552488.2A CN201710552488A CN107706681A CN 107706681 A CN107706681 A CN 107706681A CN 201710552488 A CN201710552488 A CN 201710552488A CN 107706681 A CN107706681 A CN 107706681A
Authority
CN
China
Prior art keywords
housing
shell
attachment means
power distribution
flange portion
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.)
Granted
Application number
CN201710552488.2A
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Chinese (zh)
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CN107706681B (en
Inventor
彼得·格雷
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.)
Wesker Hopmann Co Ltd
WISKA Hoppmann GmbH
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Wesker Hopmann Co Ltd
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 Wesker Hopmann Co Ltd filed Critical Wesker Hopmann Co Ltd
Publication of CN107706681A publication Critical patent/CN107706681A/en
Application granted granted Critical
Publication of CN107706681B publication Critical patent/CN107706681B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00Coupling parts supported only by co-operation with counterpart
    • H01R31/02Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/514Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34Conductive members located under head of screw
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/40Refrigerating devices characterised by electrical wiring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12End pieces terminating in an eye, hook, or fork
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/703Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to a kind of power distribution means for electric drive frozen products insulated container, the power distribution means include housing, power outlet and the first attachment means, housing includes Part I and Part II and the flange portion between Part I and Part II by inner space and environment separation and including the first opening and the second opening, first attachment means.The invention further relates to a kind of attachment means of the electric supply for frozen products insulated container, the attachment means include Part I and Part II and the flange portion between Part I and Part II.

Description

Power distribution means for frozen products insulated container supply of electric power
Technical field
The present invention relates to a kind of power distribution means for electrically driven (operated) frozen products insulated container, the power distribution means include The housing that inner space and environment are separated, the housing include the first opening and the second opening, and the power distribution means are also wrapped Power outlet and the first attachment means are included, first attachment means include Part I, Part II and positioned at Part I Flange portion between Part II.
The invention further relates to a kind of attachment means, the attachment means are used to power outlet being connected electrically in for refrigerating packaging In the housing of the supply of electric power of case, the attachment means include Part I and Part II and positioned at Part I and second Flange portion between part.
Background technology
Frozen products insulated container be used for transport need carry out transport under controlled temperature perishable items, such as fruit, meat, fish, vegetables, Dairy products need the temperature sensitive article cooled down or Keep cool when being transported in overseas or on the bank with other.It is continual cold in order to ensure Chain, frozen products insulated container include integrated refrigeration unit, and therefore rely on the power supply of outside.So long as frozen products insulated container quilt Transport or storage, it is necessary to which frozen products insulated container is connected to by power supply by cable.Electric power is from installed in container ship, land place Or the electric power point on harbour is provided.Usual this refrigeration unit is connected to three-phase system.Because this frozen products insulated container is transported Defeated to arrive every country, global standards IEC 60309 is applied to coordinate plug and socket.
The power input of single 40 feet of frozen products insulated container is up to 15kW, and needs three phase supply, therefore generally will Frozen products insulated container is connected to 440V power networks, is seldom connected to 250V power networks.Load current more than 15A needs to make cable have foot Enough wire cross-sections.
Particularly on sea lift vessel and on harbour, substantial amounts of frozen products insulated container is closely accumulated and needs to be provided Electric energy.Total power consumption is increased rapidly to hundreds of kilowatts, this must by special power distribution infrastructure being allocated and There is provided to the frozen products insulated container at sea lift vessel or land place to ensure that goods cools down.
Generally, frozen products insulated container passes through the cable connection with attaching plug to power distribution equipment.This power distribution equipment can be with Including multiple power receptacles, wherein, each power outlet can be connected with the attaching plug of cable, so as to by the cable to One frozen products insulated container supplying energy.Power outlet is construed as the electricity removably electrically connected with attaching plug Source point.Especially, the attaching plug of standardization and power outlet are used for the airborne application of sea lift vessel, such as the three-phase standardized Current plug and socket, to allow to handle this connection in international trade and transport.It should be appreciated that according to the present invention's The main purpose of power distribution means is aboard ship to use the energy supply for frozen products insulated container, but other application is also It is possible, for example, aboard ship be used for other electrical equipments such as engine room in electrical equipment energy supply or it is land should The energy supply such as energy supply of quayside frozen products insulated container or any other variable and/or compact configuration of needs Multi-purpose electric equipment energy supply device situation.
These specific requirements related with the distribution of this energy cause the problem of relevant with the installation of distribution basis facility. First, in some applications, it is only necessary to which one, two or three power outlet provides energy to the packaging of respective amount Case.However, in other application, more than three, such as five, ten or even more than ten are needed in an opening position Power outlet to provide electric energy to container, and container and power distribution infrastructure are connected to avoid the need for longer cable.By It is typically found in multiple positions on ship or on canoe, so undesirable be arranged on individually designed infrastructure by power outlet Cost of installation and maintenance is reduced in element.
Another problem related to this power distribution means be occur during use or installation act on connection Significant power on cable and socket and any additional electrical connector used in this distribution basis facility.In order to for Processing electrical connector provides safeguard protection close to anyone that these electrical connectors work, and distribution basis facility allows for Bear for example relative to cable longitudinal axis apply radial load, the radial load in the loading and uninstall process of container with And frequently occur when installing electrical connector by power outlet.
Because another problem is caused by high load currents, cable or wire is quite hard, therefore is electrically connected in foundation It is extremely difficult that these cable or wires are handled during connecing.Furthermore, it is possible to via this hard cable or wire transmission Substantial amounts of axial force and radial load.In addition, the accessibility of the link position of electrical connection for establishing this electric wire and cable It is essential feature, and therefore distribution basis facility must be designed such that electrical connector can easily be built by people Vertical and release.
Whenever loading or unloading frozen products insulated container, dock or vessel operation personnel need to collect cable from installed in refrigeration Power outlet at vanning and at power distribution means is manually connected or disconnected from.Therefore, can quick operating plug and Socket be used to frozen products insulated container being securely connected to power supply.Due to load and unload packaging under any weather condition Case, it is therefore desirable to prevent sailor and docker by the injury shocked by electricity.In this respect, specific power supply has been developed to insert Seat, this specific power outlet improve the security of resistance electrical hazard.Such power outlet i.e. from DE202012005279U1, KR20130135105 or CN103457114A are learnt., should disclosed herein is a kind of container socket Container socket is the switching mode socket of the energy supply of the frozen products insulated container for ship.Breaker is provided with socket.From DE 19706358 A1 understand a kind of breaker drive device for the supply of electric power for being used for marine cooling container.EP 1766731 B1 The socket device for solving this safety problem is disclosed with DE 10 2013209726, wherein, power switch is attached to socket simultaneously Driven by the plug in insertion socket.
The content of the invention
It is an object of the invention to provide a kind of distribution of the improved energy of electric drive frozen products insulated container for aforementioned type Device, the power distribution means improve changeability and realize the electric requirement and mechanical requirements of above-outlined.
According to the present invention, the purpose is realized by the following power distribution means for electric drive frozen products insulated container, The power distribution means include:
- housing, the housing separate inner space and environment, and the housing includes the first opening and the second opening,
- power outlet, and
- the first attachment means, first attachment means include Part I, Part II and positioned at Part I and the Flange portion between two parts,
- Part I has the first electrical connection for being adapted to be electrically connected to cable, and Part II has the second electricity Interface unit, the first electrical connection and the second electrical connection are mutually electrically connected by extend through the conductor element of flange portion Connect,
Wherein, the first attachment means by flange portion be attached to housing and partially across housing first opening, So that the Part I of the first attachment means is positioned at hull outside and the Part II of the first attachment means is positioned at housing Inside,
Wherein, power outlet is installed in the second opening of housing, and
Wherein, the second electrical connection is electrically connected to power outlet via the electrical connector of enclosure interior.
Energy distribution device should be understood that distribution is source by power supply and distributed to by power distribution means at least one The device of the energy of power outlet, wherein, frozen products insulated container can be via the cable connection with plug to power outlet.
Housing is appreciated that the box for separating inner space and exterior space, shell or encasement.Present invention meaning Housing in justice can also be electric cabinet or switch enclosure.Shell can be sealed to dust-proof, waterproof, correspondingly prevent seawater, and excellent Choosing provides the degree of protection of higher level, such as meets the IP65 standards of the standards of IEC 60529.Housing can also be understood to build The wall or wall part of thing or ship upper strata construction.
Cable is interpreted as extending side by side and is bonded, distorted or be braided together to form at least the two of single component Root electric wire.The wire ends of the stripping of cable can be connected to interface unit, so as to distribute electric energy to electricity from power supply or energy Net is delivered to power distribution means.It is particularly preferred that cable is appreciated that threephase cable, also referred to as three-phase power electricity Cable, and for transmitting energy in three-phase electrical power system.Especially, scope of the supply voltage between 100V and 680V and The load current threephase cable for being connected to connector listed in the standards of IEC 60,309 10 of the scope from 16A to 125A Can be within the scope of the invention.
Due to conducting strong electric current by wire, so the electric wire of cable has larger cross section.This causes electric wire to be again It is hard and make it that cable is rigid and inflexible.Cable can be placed on below underground or marine vessel deck and can lean on Nearly power distribution means occur.For example, cable can distribute immediately below the installation site of power distribution means or closer to energy Occur in the environment of the installation site of device.When cable does not occur below power distribution means, may become unable to Connection electric wire is difficult to connect electric wire, is enough to reach power distribution means because inflexible cable can not be bent to. In the case of other, such as when the interface unit that electric wire is under mechanical stress and is therefore connected to thereon is under mechanical stress When, it may be difficult to correctly couple a wire to interface unit.It ought particularly need inflexible cable and rigid wires company When being connected on the inside of power distribution means, because the free space in the housing of power distribution means is limited, so being difficult to electricity Line is connected to interface unit.The axial load and radial load of the weight on tie point between cable and power distribution means can Such case can be caused.
The present invention is based on following viewpoint:If the electrical connection of the electric wire of cable is formed in the outside of housing, and it is described Electrical connection is also maintained at hull outside after mounting, then can significantly simplify the installation operation of power distribution means.Work as sea-freight When ship is manufactured in shipyard, a stage of construction is the outfit of power network, and the stage is also including to for passing through Power distribution means are installed to supply the power distribution means of frozen products insulated container.
Therefore, attachment means are so that the Part I including the first interface unit of the attachment means is in hull outside Mode is attached to housing so that the accessibility of the first interface unit is significantly improved.Therefore, energy distribution can not opened The housing of device threephase cable is connected into power distribution means in the case of the electric wire of connecting cable.Possibly even must not Remove the attachment means of the electric wire for installing cable.The advantages of this monoblock type power distribution means is when can be to save Between mode partition energy into device and be attached to power network.
In addition to the advantages described above, present invention also offers additional advantage.
Due to can according to the wiring diagram of dock come pre-assembled power distribution means, so it is this it is pre-assembled during can So that housing is completely equipped power outlet and attachment means.Because opening has identical geometry, thus it is single to installation Individual or multiple attachment means and power outlet do not limit.Therefore, can be with unrestricted choice installation site.When planning, manufacture and During the power distribution means of the locally-installed supply of electric power for frozen products insulated container, this provides a greater flexibility.When During the pre-assembled power distribution means of installation afterwards of power distribution means, it is not necessary to open housing, but can be filled via connection The first electrical connection connection power supply in the Part I put.Thus, the installation be easy on ship and it is less likely to be damaged housing Interior wiring.
As the additional advantage of the present invention, the housing of power distribution means can dimensionally reduce, because three-phase electricity Cable is electrically connected to the power distribution means of hull outside, and therefore when being sized to housing without the concern on cable and The loop dimension or bending radius of its electric wire.
Conventional power distribution means, which must have, to be had the dimensions with can be by the rigid electric of the threephase cable in housing Line connects.Because the electric wire of threephase cable conducts such as 380V or more than 380V high voltage and more than 10A or very To the high current for exceeding 30A, so the electric wire with big cable cross-section causes cable to be rigid and with big most Small-bend radius.Due to the big bending radius, the housing of power distribution means needs to provide enough freedom in housing Space, can at least occupy the curve of the electric wire of threephase cable or loop and join the curve of the electric wire of threephase cable or loop It is connected to interface unit.
According to the present invention it is possible to save shell space, because can be by the required of interface unit and cable distribution Space is moved to the outside of shell from the inner space of housing.Under normal circumstances, there are enough free spaces in hull outside, Particularly there is enough length, to perform the wiring of rigid wires and rigid cable.Even suitable for high capacity electric current simultaneously And therefore the threephase cable with larger wire cross-section can also be connected to power distribution means without adjusting or expanding The housing of big power distribution means.On the one hand, it is an advantage of the current invention that can be saved because of that can manufacture housing smaller Material and space.On the other hand, for a variety of applications, shell dimension is consistent, and it is more therefore to reduce product Sample, so as to simplify storage, carrying cost is reduced, and cause the mounting arrangements of this consistent housing with higher Changeability.
It is particularly preferred that Part I includes shell, the shell is suitable for being installed to flange portion, and the shell is fenced First arrangements of electric connection and including relative with the flange portion opening for being used to insert the cable in shell, wherein, it is convex Edge point is suitable to receive shell, and shell can protect current-carrying conductor or interface unit from may unexpectedly with line or connector Damage caused by the object of part contact.In addition, it ought completely or at least partially cover or cover the interface unit and cable of cable Uncoated wire ends when, can significantly reduce short circuit risk.In addition, shell significantly increases electrical security, and show The danger for reducing the person by electric shock is write, because shell can prevent the direct contact of charging member.
The power distribution means of frozen products insulated container are exposed to seawater, rainwater and dust.It is therefore particularly preferred that shell Inner space be sealed against moisture and dust intrusion.Thus, it is possible to prevent the first electrical connection invading from humidity Evil, so as to prevent corroding, to avoid the failure of interface unit and short circuit.
The interface that can be come using seal between sealing flange part and shell.This seal can be selected from sealing Ring, flat seal, band or can be between sealing flange part and shell interface any other type seal Type.Material for this seal can include rubber, plastics, silicones, epoxy resin or adhesive material.It is special Not preferably, sealing member material is thermoplastic elastomer (TPE).Seal can be placed at contact surface of the flange portion with shell.
It is also preferred that seal is molded on shell and/or flange portion or in shell and/or flange portion.It is close Sealing can by be such as injection moulded or especially by two components be injection moulded, also referred to as 2C injection moulding) technology system It is standby.In this case, shell can by hard part, such as ABS (acronitrile-butadiene-styrene) is formed and seal Can be by soft part, such as thermoplastic elastomer (TPE), such as TPE-E (copolyesters), TPE-A (polyether block amide), TPU (heat Plastic polyurethane) or polysiloxanes offer.Therefore, seal be separately molded on shell and/or flange portion or shell and/or In flange portion and shell or flange portion are connected to, therefore during installation or maintenance process prevents from losing or forgets sealing Part, so as to improve reliability.
Moreover it is preferred that shell, the special seal for being to provide the intrusion for preventing dust and water meet IEC 60529 Standard, the standard are classified and evaluated to the encasement degree of protection provided.For supplying the energy of frozen products insulated container The shell for measuring distributor preferably has IP65 grade, and is therefore dust-proof (first numeral) and prevents from spraying water by force (the second numeral).However, shell can also have relatively low grade, such as IP64 or higher grade, such as IP66 or IP68.
It is also preferred that opening --- cable is guided in shell by the opening --- is including seal to seal Cable is stated, so as to prevent dust and moisture from entering by the opening when cable inserts.The embodiment can or illustratively Cable gland including including the seal.
It is further preferred that shell extends along the longitudinal axis vertical with the plane of the first opening, and shell passes through edge The axial movement of the longitudinal axis of the first attachment means, relative to the radial motion of longitudinal axis or relative to longitudinal axis Combination radial-axial motion or along the first attachment means longitudinal axis axial movement and rotary motion combination And it is attached to flange portion.Longitudinal axis is appreciated that from the Part I of connector extends to connection by flange portion The axis of the Part II of device.Preferably, longitudinal axis orthogonal is in plane, wherein, flange portion is attached to energy distribution dress The housing put, the plane correspond to the plane of the first opening.Alternatively, longitudinal axis can be hung down with flange portion Straight axis is the axis on the barycenter of flange portion.
Shell can be attached to flange portion by the axial movement of shell out of Part I.For example, shell and flange Part can include can be with specific clip or spring element interlocked with one another.Alternatively, flange portion and shell are suitable to logical The combination for crossing the axial movement along longitudinal axis and the rotary motion around longitudinal axis is connected to each other, and longitudinal axis is, for example, spiral shell Follow closely connector or the longitudinal axis of bayonet coupler.For example, flange portion can include external screw thread and shell can be including interior Screw thread, or shell can include external screw thread and flange portion can include internal thread.Therefore, shell can be by that can screw Installation connection, can thus remove shell when necessary.This may need to change safeguarding attachment means or working as It is favourable during the shell of damage.When tightening shell, seal, such as sealing ring or flat seal can be placed on ball In shape loop member and/or flange portion or in spherical loop member and/or flange portion.
Above-mentioned connector can be preferred that releasable connector.Releasable but non-removable company can be preferably provided Fitting, to prevent the loosening of such as shell or unauthorized removal.Furthermore, it is possible to by using adhesive or by such as locking The interlocking member of clamp produces indivisible connector, for example overall connector.
Moreover it is preferred that shell includes the first crust component and second housing element, first crust component and second Crust component couples and formd to the sealed attachment of flange sealed against one anotherly.It can be filled in crust component along above-mentioned connection The longitudinal axis put only seldom axial movement occurs or even without axial movement in the case of installation there are two shell members The shell of part.Therefore, can be from the longitudinal axis orthogonal with attachment means or inclined relative to the longitudinal axis of attachment means Any direction is installed, that is, moves radially or radial-axial moves.For example, the first crust component and second housing element can To be implemented as two half-shells, described two half-shells are held together and completely or partially surround the connection of flange portion Device flange.When installing shell, it can be advantageous that in the absence of space or only exist seldom space to make shell along connection The longitudinal axis movement of device is to approach electrical connector or to make electric wire be attached to the first interface unit.In power distribution means Attachment means and the cable to be joined to attachment means not point-blank in the case of, possibly can not correctly install outer Shell.In this case, because external screw thread and internal thread can not be properly aligned with each other, there may come a time when not installing what can be tightened Shell.
It is furthermore preferred that shell includes the first crust component and second housing element, first crust component and Two crust components couple and formd to the sealed attachment of flange sealed against one anotherly.Embodiment and reality on these sealings The advantages of applying mode details, narration are with reference to the related description of the above-mentioned sealing between shell and flange portion.
It is furthermore preferred that
- the first crust component is fixed to flange portion and second housing element is fixed to the first shell, or
- the first crust component is fixed to flange portion and second housing element is fixed to flange, or
- the first crust component is fixed to flange portion and second housing element is fixed to flange portion and is fixed to first Crust component.
It is beneficial that first crust component is connected into flange portion so that the first crust component is fixed, and then Second housing element is set to be connected to the first crust component, for example similar to lid.In such a case, it is possible to omit second housing Element is individually fixed to flange portion.Alternatively, it is preferred that the first crust component and second housing element are all mounted to Or flange portion is fixed to, but cannot be separately attachable to each other.Alternatively, it is preferred that the first crust component is consolidated Determine to flange portion and be fixed to second housing element, between the first crust component and second housing element and flange portion The interconnection and sealing of stronger mechanical strength are provided.
Moreover it is preferred that the first crust component and flange portion form global facility.
For example, the first crust component can extend from flange portion to surround the first interface unit.This is outside connection second It is probably favourable during shell element, because electrician need not hold two crust components with hand, but can be simply by second Crust component is attached to the first crust component of the fixation of the integral part as flange.
Moreover it is preferred that shell rotation is attached to flange portion, it is preferred that hollow globe joint connecting flange Part and shell.
The rotation installation connection of housing and flange portion is probably favourable, because this is provided housing with tilted alignment It is installed to the possibility of flange portion.Such as the attachment means when power distribution means and the cable to be joined to attachment means Not point-blank or when there is position mismatch or angle mismatching, it is this angled to be attached what is be likely necessary.In this feelings Under condition, it will the power acted on shell can make the sealing between flange portion and shell invalid, and can not if will realize Rotation is rigidly connected, then the risk that can be broken.By acting on the power on the material of attachment means and/or the material of shell Caused this mechanical stress can be avoided by rotating the connection of installation, and this and then may prevent housing to be broken, and Therefore the service life of power distribution means is increased.
Another advantage is can to simplify installation, this be due to can to the assembling position of the housing of power distribution means and The dimensional discrepancy for the position that cable is placed or occurred below underground or deck compensates.
The connection of rotation installation can be realized by the hollow sphere joint for allowing to move around pivot.Therefore, Shell can form hollow ring element, and the hollow ring element has spherical inner geometry or bulbous exterior portion geometry Section.Flange portion can include following part, and it has the bulbous exterior portion complementary with corresponding internal geometry simultaneously And radius is substantially identical with the internal diameter of shell.When seated, shell round collar part has the spherical outer of flange portion The part of portion's geometry.Therefore, it is fixed in terms of lengthwise movement of the shell relative to flange portion, but due to convex-concave ball The engagement of face geometry, shell can perform the banking motion relevant with flange.
It is preferred that being provided with seal between flange portion and shell, the seal is preferably to be attached to flange portion or convex The lip ring of the peripheral recess of edge point.
The advantages of on this seal function and embodiment, with reference to above with respect to close between shell and flange portion The description of sealing.
It is furthermore preferred that power distribution means also include the adapter member being adapted to mount between flange portion and shell Part.
This adapter element is following it may be the case that favourable:Such as it will include having threaded flange portion Attachment means when being pre-assembled in power distribution means, but, it is necessary to outer to install at a certain angle during installation process Shell is to compensate the situation of the deviation of installation site.When the orientation mismatch of shell and cable, it is possible that installation site is inclined Difference.Then, adapter element can be used to compensate for mismatch, therefore allow simple and quick installation process.Adapter element can Compensation is provided especially to provide angle compensation or radial deflection for cable and shell.
Moreover it is preferred that the length of shell is more than the diameter or Breadth Maximum of the cross section of shell.One fixed length of shell Degree ensure that, when installing power distribution means, shell provides enough spaces, to keep the electric wire of cable to interface unit Installation process.Therefore, shipyard person can install shell manually, because he can be by using his hand without special Instrument applies enough moments of torsion.Another advantage of the certain length of shell is to provide enough length and comes compensating cable and energy Measure the misalignment of the attachment means of distributor.
Due to electric wire be it is rigid make its bending with match desired position be in most cases it is impossible or It is very difficult.Therefore, outer cover length is conducive to provide greatly in shell than the diameter or maximum gauge of the cross section of shell Electric wire enough spaces.
It is also preferred that the cable for being inserted through the opening of shell has the first minimum bending radius, and it is described The electric wire of cable has the second minimum bending radius, wherein, the length along its longitudinal axis of shell is minimum for first 0.05 times to 2 times of bending radius, and/or wherein, the length along its longitudinal axis of shell is the second minimum bending radius 0.1 times to 5 times.The length of shell can depend on the minimum bending radius of cable, because bending radius can be to making electricity Cable is placed required amount of space with angled arrangement and impacted.Because bending radius is the quality factor of cable, because The size of this shell may be relevant with bending radius.The bending radius is applied to the curved of the electric wire of the cable as threephase cable Bilge radius.Generally, the minimum bending radius of cable or electric wire can be confirmed as 15 times of the diameter of cable or electric wire respectively.
Moreover it is preferred that power distribution means also include valve cell, the valve cell is by the inner space of shell and shell Outside exterior space connects and is suited to compensate for the air pressure difference between the inner space of shell and exterior space.Due to energy Amount distributor is connected to high voltage, therefore the condensation humidity that can be preferably prevented from inner space.Therefore, valve cell performs outer Pressure balance between the inner space of shell and environment, so that the least risk of the condensed water in shell.Therefore, add by outer Shell covering interface unit durability and prevent electric fault.
It is also preferred that shell includes being used for the fixing device that cable is fixed to shell, so that the first electrical connection From as applying to the influence of mechanical strain caused by the power of the cable.When power is applied to cable, mechanically and The risk that the contact with conductor element loosens or is even broken be present in the cable and wire for being electrically connected to interface unit.This will Cause the failure of power distribution means.Therefore, attachment means can be modified to provide disappear by the way that cable is fixed into shell Except the strain of interface unit.For example, cable gland can be an integral part of shell, or can for example be revolved by fixing It is screwed onto shell.When cable is fed by this cable gland, the electric wire of interface unit is mechanically connected to from mechanical force Influence.Especially, this strain relief means can be attached to the opening of the cable insertion in shell, and this strain disappears Except device can have sealing effectiveness to seal the opening when cable inserts.
It is also preferred that the first electrical connection includes multiple connectors, and wherein, in the adjacent connector of each two Between be disposed with the separator element being formed of an electrically insulating material.
Separator element improves electrical security, because they are prevented between the neighboring connectors parts of attachment means Unexpected connection.In order that cable more flexibly and reduces its bending radius, electric wire is made up of several wires.However, installing Cheng Zhong, single conductor may not be connected dress device and clip, and may protrude and may be connect with adjacent interface unit Touch, so as to cause electric fault.Separator element mechanically prevents single wire or multiple wires and the adjacent connection of electric wire Device or line contacts, because separator element forms mechanical barrier between two adjacent interface units.Separator member Part can be understood as safety head, guard shield, security mask or by being attached to attachment means between two neighboring connectors parts Or plate or panel made of the plastic material from attachment means extension.
Another advantage is clearance distance and creep age distance increase, and improves insulation barrier, and this prevents two phases again Flashover between adjacent interface unit.
Moreover it is preferred that the first electrical connection and/or the second electrical connection include screw terminal, clamp terminal, Weld cup or welded plate.
Generally, interface unit can use different interface units, and in some applications, some interface units may It is more suitable than other interface units.For example, when using the pinching end period of the day from 11 p.m. to 1 a.m, wire can be to save time and easy way quilt Connection, because not needing instrument or cable connector connecting a wire to the pinching end period of the day from 11 p.m. to 1 a.m.Alternatively, screw terminal provides The durable connection of machinery.When connecting electric wire, it is necessary to conventional instrument, such as screwdriver or spanner.Weld cup or welded plate provides Most durable electric wire connection, these connection types need special tool(s).
Moreover it is preferred that power outlet has the length on the axial direction of attachment means, and the housing exists It is 1.5 times of length of the power outlet on the axial direction small described in depth ratio on the axial direction.The depth of housing It is appreciated that the size in the longitudinal axis direction of attachment means.Preferably, power outlet has and the attachment means The longitudinal axis of the longitudinal axis parallel.Because the first interface unit of attachment means is placed on the shell of power distribution means The outside of body, it is possible to reduce the depth of housing.According to the present invention, the minimum-depth of housing is substantially by being installed in housing Power outlet length determine.Generally, it may be necessary to for the power outlet in the housing of power distribution means and attachment means The second interface unit wiring provide additional space.In consideration of it, the depth smaller than the Double Length of power outlet is enough to seal Enclose the second interface unit, power outlet and the second interface unit of attachment means and the power outlet wiring of attachment means.By In the size that can reduce housing, therefore the sheathing material of such as metal or plastics can be saved and cost can be reduced.Replace For property, instead of the housing with twice of depth for being correspondingly less than power outlet length, the depth of housing, which can be less than, to be connected The length along the longitudinal axis of connection device, the 75% of preferably less than described length.
Moreover it is preferred that housing includes the 3rd opening, and the second attachment means are installed in the 3rd opening, wherein, Second attachment means construct according to the first attachment means, and wherein, the second electrical connection electricity of the second attachment means Second electrical connection of the first attachment means being connected in housing.
When installation is used for the power distribution means of the supply of electric power of frozen products insulated container, it may be necessary to which offer one kind is used for will Energy distributes to the sub- method of salary distribution of extra power distribution means, to provide the complete basis for supplying multiple frozen products insulated containers Facility.Therefore, housing can be included in two attachment means being electrically connected to each other in housing.A connection dress in attachment means Energy source can be attached directly to by putting, and can be used for energy supply to the power outlet being arranged in the housing, And another attachment means is used to make the energy branch from first attachment means and be supplied to the energy branch Another electrical equipment, such as the power outlet in another housing.Thus, power distribution means can include tool There are the second housing of power outlet and the 3rd attachment means in the second housing, wherein, cable loop is in hull outside Second attachment means are connected with the 3rd attachment means.Thus, it is possible to built by the housing connected in a continuous manner complete Infrastructure.
The advantages of this infrastructure, is that it can be made up of to be formed housing that is consistent or even standardizing State power distribution means.Housing as two, three or even more can be electrically connected to each other to provide desired amt Power outlet.Planning, installation and the complexity safeguarded can be reduced by so doing.In addition, with size economy housing this Application in kind modular setting, the cost of each unit can also reduce.
It is furthermore preferred that
- the first housing has the first connection opening in housing sidewall,
- the second housing is disposed adjacent with the side wall,
- second housing has be connected the second adjacent connection opening of opening with the first of the first housing,
Wherein, electric conductor is along the first connection opening and the second connection opening extension, to be attached to the electricity of the first housing Supply socket electrically connects with being attached to establish between the power outlet of the second housing.
The side wall of housing is appreciated that any wall different from the wall including the first opening and the second opening, and first opens Mouth and the second opening are understood to be arranged in the antetheca of housing.Preferably, the side wall and the antetheca are rectangular.Two or The housing of more power distribution means can be with mechanically connected to each other or be connected to common platform, so as to form sharing unit. The advantages of this device is that greater number of power outlet and the single power line of supply can be provided in infield.This is being planned Infrastructure can provide extra flexibility when electrically supplying frozen products insulated container.Therefore, power distribution means can be adapted to Actual local circumstance or the needs of technology or specific condition.
It may be preferred that two housings can be fixed to one another by the hollow screw with major diameter, such as installed in The diameter that size in the first connection opening and the second connection opening is tens millimeters and up to 100 millimeters.Therefore, two Individual housing can have for example positioned at the corresponding connection opening of its side-walls, and then hollow screw can be to cause screw thread The mode that a part is stretched out in one or two housing is placed.It is then possible to single nut or multiple nuts are screwed to hollow So that two housings to be attached to each other on screw.Cable can be conducted through hollow screw, and cable can be used for second The power outlet of housing electrically connects with the second interface unit of the attachment means of the first housing.
Instead of the hollow screw with major diameter, multiple screws can be arranged around the connection opening of two housings, And the multiple screw is fed by the corresponding fixing hole being placed in two side walls of housing.
Moreover it is preferred that the 3rd attachment means replace power outlet to be arranged on any of the first housing or the second housing In opening, wherein, the 3rd attachment means construct according to the first attachment means, and wherein, the first of the 3rd attachment means Electrical connection is electrically connected to the first electrical connection of the first attachment means or the second attachment means.Whenever power distribution means Two housings when coupling to provide greater number of power outlet position, attachment means are installed to the housing of interconnection Opening in one opening in.The additional attachment means are partitioned energy into another power distribution means.Can accordingly, it is capable to measure To be transferred to subsequent or downstream power distribution means.Therefore, when installed in dock, harbour or continental rise place, Ke Yigen More complicated infrastructure is realized according to local circumstance or technology or specific condition.
According to another aspect of the present invention, above-mentioned purpose is filled by a kind of connection of supply of electric power for frozen products insulated container Put to solve, the attachment means include:
- Part I and Part II, and
- the flange portion between Part I and Part II, the flange portion be suitable to in the housing Opening adjacent be fixed to housing, Part I has the first electrical connection for being adapted to be electrically connected to cable, and second Part has the conductor member of the second electrical connection, the first interface unit and the second interface unit by extend through flange portion Part electrically connects.
It should be appreciated that the preferred embodiment of the attachment means can include the part as power distribution means The feature and function of the attachment means formerly described.
Brief description of the drawings
The preferred embodiment of the present invention is described by example for refer to the attached drawing, in the accompanying drawings:
Fig. 1 is the 3-D view of power distribution means;
Fig. 2 is the 3-D view of the power distribution means with the shell turned on;
Fig. 3 is the detailed three-dimensional view of the Part I of attachment means;
Fig. 4 is the 3-D view of the second embodiment of power distribution means;
Fig. 5 is the 3-D view of the power distribution means with the case lid removed and the half-shell of removal;
Fig. 6 is the power distribution means with the casing cover removed and the half-shell shell of removal according to second embodiment Detailed three-dimensional view;
Fig. 7 is according to the front view of the power distribution means of second embodiment, shows the shell with tilted alignment;
Fig. 8 is the flange portion of attachment means and the detailed front view of Part I;
Fig. 9 a) to Fig. 9 c) it is example installation positions of the attachment means in the housings with five openings;
The 3-D view for two housings for including an attachment means that Figure 10 is connected together;
The 3-D view for two housings for including two attachment means that Figure 11 is connected together;
Figure 12 is power distribution means a) to e) and power distribution means a) to preferable combination f) e) is to possibility l) The schematic diagram of housing;
Figure 13 is the schematic diagram according to the section of two interconnection housings of the power distribution means of the present invention.
Embodiment
Fig. 1 shows the first embodiment of power distribution means 100 into Fig. 3.Housing 110 includes releasable lid 112 With with four opening foreboards, wherein, described four opening in three opening in three power outlets 180 are installed. Attachment means have Part I 140, and Part I 140 is located at hull outside.Part I is adjacent with flange portion 123, its In, attachment means are installed by the screw and the foreboard adjacent with the 4th opening of housing 110 for being attached to the flange portion 123 Into the 4th opening.
Flange portion includes the external screw thread 124 for limiting the first interface unit 120, and the first interface unit 120 is by screw terminal 125 form.These screw terminals and the conductor element 130 for extending through flange portion are integral.The electric wire of threephase cable 150 152 are fastened to screw terminal by cable connection piece 153 in the end of every cable and are electrically connected to screw terminal.Therefore, The electric wire of threephase cable can be connected to lid 112 of the power distribution means without removing housing 110.
Shell 141 has internal thread at its internal perisporium and is threaded io screw thread 124.Part I 140 also includes The cable gland 142 of the end relative with internal thread positioned at it.Cable gland 142 is fastened to shell 141.Cable seal Set includes the seal of junction cable periphery, to protect screw terminal 125, electric wire 152 and conductor element 130 from water, moisture With the infringement of dust.Cable gland can also include strain relief means, to discharge threephase cable 250 and corresponding electric wire 252 mechanical strain.In order to provide electric energy to power distribution means 100, threephase cable 150 is connected to energy supply part and (not shown Go out).
The shell 141 of attachment means shown in Fig. 2 is turned on from screw thread 124, thus provides screw terminal 125, electric wire 152 and the path of conductor element 130.As can be seen from Figure 2, shell 141 can be along cable 150 in the case where turning on Axially move and shell 141 is short enough on the axial direction, so as to allow close to first interface unit 120.
Fig. 3 shows the detailed three-dimensional view of the first interface unit 120 and flange portion 123.Separator element 127 is distinguished It is placed between two adjacent conductor elements 130 and screw terminal 125.
Fig. 4 to Fig. 8 shows the second embodiment of the power distribution means according to the present invention.Fig. 4 shows housing 210, housing 210 includes releasable case lid 212 and the foreboard with four openings, wherein, in described four openings Three power outlets 280 are installed in three openings.Attachment means have the Part I 240 adjacent with flange portion 223.Even Connection device is installed in the 4th opening by the screw and the foreboard adjacent with the 4th opening for being attached to the flange portion 223. The Part I 240 of attachment means is located at the outside of housing 210, and including the first interface unit 220, shell 241,241a, Casing screws 244 and cable gland 242.
Fig. 5 and Fig. 6 shows the power distribution means for the Fig. 4 for removing case lid 212.First connector of attachment means Part 220 is positioned at the outside of housing 210, and the electric wire 252 of threephase cable 250 is connected to first by cable connection piece 253 The screw terminal 225 of interface unit 220.The screw terminal 225 is connected to conductor element 230.Separator element 227 is placed on Between the adjacent conductor element 230 of any two and the screw terminal 225 being attached thereto.
The Part II of attachment means is positioned at the inside of housing 210 and including the second interface unit 260.Screw terminal 266 are attached to conductor element 230.Separator element 268 be disposed respectively between the adjacent conductor element 230 of any two with And between two screw terminals 266.Electric wire (not shown) is connected to screw terminal 266 to provide the power outlet in housing 210 280 electrical connection.
According to present embodiment, flange portion includes forming the outer spherical ring-type of the supporting surface of globe joint bearing 224 Surface.Shell 241 is implemented as two combined shell half-shells, wherein, the first shell half-shell is illustrate only in fig. 5 and fig. 241a.Half-shell 241a, b includes inner bearing surface 224a, the b being attached at one end on annular surface 224.When two half-shell groups During conjunction, the half-shell is fixed to the spherical ring-type element 224 of flange portion, and therefore forms globe joint.Alternatively, institute Flange portion 223 can also be attached directly to by stating half-shell.
When half-shell is interconnected by screw 244, shell 241 be fixed to flange portion to frictionally with prevent along The axial direction of cable 250 axially moves.Cable gland 242 is for example by tightening or clamping and solid to shell 241.Shell 241 inner space includes screw terminal 225, electric wire 252 and conductor element 230.The inner space is sealed against sealing With dust by the Housing seal member that is positioned in body seal groove 243, be positioned at the sealed groove of spherical ring-type element 224 Seal in 229 and the seal provided by cable gland 242 invade.Cable gland may also include strain relief means To mitigate the mechanical strain of threephase cable 250 and corresponding electric wire 252.
Shell 241a, b are longer than shell 141, so that it is more convenient close to the first interface unit, to allow to handle and connect Harder cable with the electric wire harder than first embodiment.Due to shell 241a, b length increase, it is impossible to pass through shell Axial movement of the body along the cable in erecting device comes close to the first attachment means.Alternatively, in this embodiment, can be with Radially one or two half-shell 141a, b of shell is removed.
Fig. 7 shows the front view of power distribution means 200.Fig. 7 shows the He of longitudinal axis 290 of threephase cable 300 The longitudinal axis 291 of the flange portion of attachment means is not point-blank, and therefore show angle mismatching α.Whenever energy The housing 210 of amount distributor 200 is mounted so that the attachment means of power distribution means and is connected to the electricity of attachment means Cable 250 is likely to occur such angle mismatching not on straight line or when having position or angle mismatching.When flange portion When spheric annulus surface 224 forms rotation installation with shell 241, the orientation that housing can be at an angle is installed to compensate Angle mismatching α and the installation process for simplifying shell 241.
Fig. 8 shows the detailed view of the interface unit 220 of flange portion 223 and first of attachment means.Spheric annulus table The shape in face 224 is similar to ball joint portion.The crooked inner surface 224a of shell 241 is contacted simultaneously with spheric annulus surface 224 And be formed as complementary with spheric annulus surface 224.This allows shell to be installed with inclined orientation to compensate with angle mismatching α.It is close Envelope groove 229 is arranged in spheric annulus surface 224 in a manner circumferentially.Sealed groove 229 includes sealing ring, or seals recessed Groove 229 can include the seal member being molded into spheric annulus surface 224, such as outer to provide by two component injection shapings Sealing between half of 30 housing and flange portion of shell 241.
Fig. 9 a) to Fig. 9 c) show attachment means according to the first embodiment of the invention are attached to energy distribution Several selections of the housing of device.Housing has five openings, wherein four power outlets are arranged in described five openings In four openings.
Fig. 9 a) power distribution means 300 are shown, wherein, attachment means are arranged on the opening of left-hand side.
Fig. 9 b) power distribution means 310 are shown, wherein, attachment means are arranged on middle opening.
Fig. 9 c) power distribution means 320 are shown, wherein, attachment means are arranged on the opening of right-hand side.
Not limited to this, attachment means can also be installed in Fig. 9 a) to Fig. 9 c) not shown in two other opening 10 In.In addition, the example is not limited to the attachment means of first embodiment.Not limited to this, can also be instead of using real according to second Apply the attachment means of mode.
Figure 10 and Figure 11 shows power distribution means 400,500, and it provides the increased power outlet quantity of quantity.
Figure 10 shows the power distribution means 400 with the first housing 410 and the second housing 420.First housing 410 Two housings are interconnected amongst one another in side-walls.Housing 410 includes the foreboard with six openings, wherein, five power outlets are arranged on In five openings in six openings.It is arranged on according to the attachment means 401 of second embodiment of the invention in the 6th opening.Shell Body 420 includes the foreboard with six openings, wherein, six power outlets are arranged in six openings.
The power outlet of housing 410 is electrically connected to the attachment means 401 in housing 410.The power supply for being attached to housing 420 is inserted Seat is also connected to the attachment means 401 in housing 410.Housing 410 and 420 includes corresponding connection and is open in the sidewall, connection Opening contacts between housing 410 and 420.Then, wire is open through connection, to provide attachment means 401 and be attached to shell Electrical connection between the power outlet of body 420.Attachment means 401 can be connected to power supply by cable (not shown).
Figure 11 shows the improved power distribution means 500 of the first housing 510 and the second housing 520 with interconnection, The power distribution means 500 are substantially similar to the power distribution means 400 shown in Fig. 4.Difference is that energy distributes Device 500 includes two attachment means:First attachment means 501 and the second attachment means 502, the first attachment means 501 are pacified The opening being filled in the foreboard of the first housing 510, the second attachment means 502 are attached to the opening in the foreboard of the second housing 520.
Attachment means 501 can be connected to power supply by cable (not shown), and attachment means 502 can be used for via electricity Cable is partitioned energy into another power distribution means (not shown) to carry out sub- distribution.In the device of replacement, two connection dresses Putting 501 and 502 can move in the first housing 510 or be moved in the second housing 520.
Example shown in Figure 10 and Figure 11 is not limited to the attachment means of second embodiment of the present invention, and can use The attachment means of first embodiment.
Figure 12 a) to Figure 12 l) schematically show 15 energy of the combination outside the modular system according to the present invention Measure the preferred compositions of the interconnection housing of distributor.Figure 12 a) to Figure 12 e) show that there is one to six in the foreboard of housing The power distribution means of opening, wherein, attachment means are exemplarily attached to the left side opening of housing, and power outlet is pacified It is filled to remaining opening.Figure 12 f) to Figure 12 k) show in the first housing of its side wall interconnection and preferred group of the second housing Close, to provide the power distribution means with greater number of power outlet.Shell of all power outlets in power distribution means Electrically interconnect in vivo.Therefore, when by two Figure 12 a) to Figure 12 e) shown in the housings of power distribution means carry out During combination, six to ten power outlets can be provided.
Figure 12 l) the first housing and the second housing of interconnection are shown, wherein, the first housing and the second housing are via connection Device is electrically connected to each other by cable, and the attachment means are via each shell being arranged in cable connection to the housing of hull outside Body.The example can also be applied to Figure 12 f) to Figure 12 k) shown in power distribution means.
Figure 13 schematically illustrates the mechanically interconnected horizontal stroke of two housings 710,711 by power distribution means 700 Section.Two housings 710,711 have connection opening 712,213 in its side wall.Substantially have than connection 712 Hes of opening It is in the first housing 710 of insertion of hollow screw 720 of 713 slightly smaller diameters and the connection opening of the second housing 711 and for example logical Two hex nuts 730 crossed in housing 710,711 fasten.When nut is tightened, the side wall of housing is to positioned at two side walls Between radially outward and around screw 720 the applying power of sealing ring 740.
It thus provides sealing of the hollow screw 720 with being connected opening 712,713, and prevents wet gas and water and dust Invade the inner space of housing 710 and 711.
Figure 13 will be understood as how the example that two shells interconnect, and be not intended to hair claimed In the bright solution proposed being limited in shown in the accompanying drawing.For example, a hollow screw need not be used.It is alternative Ground, multiple screws can be arranged around connection opening, and the multiple screw can be fed through and be arranged on housing 710 With the corresponding fixing hole in two side walls of housing 711.

Claims (20)

1. a kind of power distribution means for electrically driven (operated) frozen products insulated container, the power distribution means include:
- housing, the housing separate inner space and environment, and the housing includes the first opening and the second opening,
- power outlet, and
- the first attachment means, first attachment means include Part I, Part II and positioned at the Part I with Flange portion between the Part II,
- the Part I (140) has the first electrical connection (120), and first electrical connection (120) is suitable to be electrically connected Cable is connected to, and the Part II has the second electrical connection, and first electrical connection and described second are electrically connected The conductor element that device is connect by extend through the flange portion is electrically connected to each other,
Wherein, first attachment means are attached to the housing, and first attachment means by the flange portion Extend partially through first opening of the housing so that the Part I of first attachment means is positioned at The outside of the housing and the Part II of first attachment means is caused to be positioned at the inside of the housing,
Wherein, the power outlet is installed in second opening of the housing, and
Wherein, second electrical connection is electrically connected to the power outlet via the electrical connector of the enclosure interior.
2. power distribution means according to claim 1, wherein, the Part I includes shell, the shell:
- flange portion is suitable for being installed to,
- fenced first electrical connection, and
- including opening, the opening is relative with the flange portion, for the cable to be inserted in the shell,
Wherein, the flange portion is suitable to receive the shell.
3. power distribution means according to claim 2,
Wherein, the shell extends along the vertical longitudinal axis of plane with the described first opening, and the shell by The flange portion is attached in following motions:
- along first attachment means the longitudinal axis axial movement,
- the radial motion relative to the longitudinal axis or the radial-axial aggregate motion relative to the longitudinal axis, or
- along first attachment means the longitudinal axis combination axial movement and rotary motion.
4. power distribution means according to claim 2, wherein, the shell includes the first crust component and second housing Element, first crust component and the second housing element couple and formd close to the flange sealed against one anotherly Envelope connection.
5. power distribution means according to claim 4, wherein,
- first crust component is fastened to the flange portion, and the second housing element is fastened to outside described first Shell element, or
- first crust component is fastened to the flange portion, and the second housing element is fastened to the flange part Point, or
- first crust component is fastened to the flange portion, and the second housing element is fastened to the flange part Divide and be fastened to first crust component.
6. the power distribution means according to claim 4 or 5, wherein, first crust component and the flange portion Form the part of one.
7. the power distribution means according to any one of claim 2 to 5, wherein, the shell rotation is attached to institute State flange portion, it is preferable that hollow globe joint couples the flange portion and the shell.
8. the power distribution means according to any one of claim 2 to 7, in addition to adapter element, the adaptation Device element is adapted to mount between the flange portion and the shell.
9. the Energy distribution device according to any one of claim 2 to 8, wherein, the length of the shell is more than institute State the diameter or Breadth Maximum of the cross section of shell.
10. the power distribution means according to any one of claim 2 to 9, wherein, it is inserted through the institute of the shell Stating the cable of opening has the first minimum bending radius, and the electric wire of the cable has the second minimum bending radius,
Wherein, the length along its longitudinal axis of the shell is 0.05 times to 2 times of first minimum bending radius, And/or
Wherein, the length along its longitudinal axis of the shell is 0.1 times to 5 times of second minimum bending radius.
11. the power distribution means according to any one of claim 2 to 10, in addition to valve cell, the valve cell The inner space of the shell and the exterior space of the housing exterior are connected, and the valve cell is suited to compensate for the shell The inner space and the shell the exterior space between draught head.
12. the power distribution means according to any one of claim 2 to 11, wherein, the shell includes fixed fill Put, the fixing device is used to cable being fixed to the shell so that first electrical connection is from by applying to described The influence of mechanical strain caused by the power of cable.
13. the power distribution means according to any one of preceding claims, wherein, the first electrical connection bag Multiple connectors are included, and wherein, the separator being formed of an electrically insulating material are disposed between the adjacent connector of each two Element,
And/or wherein,
Second electrical connection includes multiple connectors, and wherein, is disposed between the adjacent connector of each two The separator element being formed of an electrically insulating material.
14. the power distribution means according to any one of preceding claims, wherein, first electrical connection And/or second electrical connection includes screw terminal, clamps terminal, weldering cup or welded plate.
15. the power distribution means according to any one of preceding claims, wherein, the power outlet has in institute The length on the axial direction of power outlet is stated, and wherein, the depth on the axial direction of the housing is less than institute State the length of the power outlet on the axial direction 1.5 times.
16. the power distribution means according to any one of preceding claims, it is characterised in that
- the housing includes the 3rd opening, and
- the second attachment means are installed in the described 3rd opening, wherein, second attachment means are according to the described first connection Device is constructed, and
Wherein, the second electrical connection of second attachment means is electrically connected to first attachment means in the housing Second electrical connection.
17. the power distribution means according to any one of preceding claims, it is characterised in that
- the first housing has the first connection opening in the side wall of the housing,
- the second housing be arranged to it is adjacent with the side wall,
- second housing has be connected the second adjacent connection opening of opening with described the first of first housing,
- wherein, electric conductor extends through the first connection opening and the described second connection is open, to be attached to described first The power outlet of housing electrically connects with being attached to establish between the power outlet of second housing.
18. power distribution means according to claim 17, it is characterised in that
In any opening of first housing or in any opening of the second housing is provided with instead of the power outlet Three attachment means, wherein, the 3rd attachment means are constructed according to first attachment means, and
Wherein, the first electrical connection of the 3rd attachment means is electrically connected to first electricity of first attachment means First electrical connection of interface unit or the second attachment means.
19. a kind of attachment means of supply of electric power for frozen products insulated container, the attachment means include:
Part I and Part II, and
Flange portion between the Part I and the Part II, the flange portion be suitable to in housing Opening adjacent is fastened to the housing,
The Part I has the first electrical connection, and first electrical connection is adapted to be electrically connected to cable, and institute Stating Part II has the second electrical connection, and first electrical connection and second electrical connection are by extending through The conductor element for crossing the flange portion is electrically connected to each other.
20. attachment means according to claim 19, wherein, the attachment means are according to appointing in claim 2 to 15 One is modified.
CN201710552488.2A 2016-07-25 2017-07-07 Energy distribution device for refrigerated container power supply Active CN107706681B (en)

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