CN203722163U - Junction box - Google Patents

Junction box Download PDF

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Publication number
CN203722163U
CN203722163U CN201320778333.8U CN201320778333U CN203722163U CN 203722163 U CN203722163 U CN 203722163U CN 201320778333 U CN201320778333 U CN 201320778333U CN 203722163 U CN203722163 U CN 203722163U
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CN
China
Prior art keywords
cylindrical shell
wiring
spine
terminal box
box
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Withdrawn - After Issue
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CN201320778333.8U
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Chinese (zh)
Inventor
朱茂雅克
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FOSHAN JPCI CONTROL MANUFACTURING Co Ltd
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FOSHAN JPCI CONTROL MANUFACTURING Co Ltd
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Priority to CN201320778333.8U priority Critical patent/CN203722163U/en
Application granted granted Critical
Publication of CN203722163U publication Critical patent/CN203722163U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides a junction box which comprises a box body, a plurality of inlet wire holes, and a wiring mechanism, wherein the box body consists of a bottom box and a box cover, and the bottom box and the box cover cooperate with each other in a covering manner. The wiring mechanism is disposed in the bottom box, and each inlet wire hole consists of a first semi-hole disposed at a side edge of the bottom box, and a second semi-hole correspondingly disposed at a side edge of the box cover. A waterproof structure is disposed at a place adjacent to the inlet wire holes. The waterproof structure comprises a fixing sleeve and a cylinder. The wiring mechanism is provided with a wiring base and a plurality of wire-pressing structures. The surface of the wiring base is provided with a plurality of wiring places which are used for connecting cables. At least one wiring place is provided with a spine gasket, and the surface of the spine gasket is provided with spines. The wire-pressing structures are used for tightly pressing the cables placed on the spine gasket and fixing the cables to the wiring base. The junction box provided by the utility model is good in waterproof performance, can enable the conducting parts of the cables to be connected in the junction box more conveniently, and is more convenient and efficient in application.

Description

A kind of terminal box
Technical field
The utility model relates to a kind of terminal box.
Background technology
Terminal box, as cable connection device, is one of a kind of conventional electrician's auxiliary material.Terminal box is generally comprised of several parts such as end box, lid, entrance hole, wiring mechanism, connecting line, connectors.Terminal box when design, be considered waterproof insulation performance conventionally, avoids the electric leakage of getting an electric shock, and jeopardizes personal safety.At present, people are conventionally at terminal box lateral opening hole, and cable is fixed in terminal box body by connectors such as bolts through behind this hole.Because the operational environment complexity of terminal box is various, many times also can be in wet environment.And this existing terminal box, because its water resistance is not good, the water capacity easily penetrates in terminal box along entrance hole, thereby causes electric leakage etc., has very large potential safety hazard.Afterwards, people improve, and the entrance hole place that enters box body at cable has increased bolt and nut, and cable enters in box body after through the bolt of working in coordination and nut, and then cable is fixed in box body.Although this method water proofing property improves to some extent, but still not fully up to expectations.In actual applications, the solution such as rainwater still can enter into electrical connections along the space between bolt and cable, the larger potential safety hazard of same existence.Publication number is that the Chinese patent application of CN201830173 discloses a kind of terminal box, it comprises housing, be contained in the some conducting terminals in lower house and be located at two riveting parts in order to connection cable on lower house, lower house comprises the first side wall being parallel to each other and the second sidewall that is connected with the first side wall and is parallel to each other, between described the first side wall and the second sidewall, be arranged with the connection the first side wall of pair of angled setting and the connecting portion of the second sidewall, the first side wall, the second sidewall and connecting portion surround one jointly in order to accommodate the host cavity of conducting terminal, between riveting part and connecting portion, be that face coordinates with the vertical of face, thereby play certain waterproof effect.
In addition, existing terminal box, before wire is connected in terminal box, conventionally to first divest or remove the insulating material that is coated on wire, the conductor wire core of wire is come out, for example again conductor wire core is connected to afterwards, on the wiring mechanism (binding post) in terminal box and realizes electrical connection.But very multiconductor insulating material divests very difficult, conventionally to expend a lot of time and efforts and could successfully divest insulating barrier, this greatly reduces the efficiency of wiring.Therefore, provide a kind of use more the terminal box of simple and effective be necessary very much.
Utility model content
In order to overcome above-mentioned deficiency, the terminal box that provides a kind of water resistance better is provided the purpose of this utility model, and this terminal box can be connected to the current-carrying part of cable in terminal box more easily, more convenient to use, efficient.
The utility model is for reaching its object, and the technical scheme adopting is as follows:
A kind of terminal box, comprise the box body, some entrance holes and the wiring mechanism that by the end box that can cover and lid, are formed, described wiring mechanism is located in end box, each entrance hole forms by the first half holes and corresponding the second half holes of being located at lid side of being located at end box side, in the position of adjoining described entrance hole, also there is waterproof construction, described waterproof construction comprises fixed cover and cylindrical shell
Described fixed cover consists of the first half covers and the second half covers, and first and second half cover is outwards protruded out and forms by the edge in first and second half hole of entrance hole respectively, and when box lid and bottom lid closes, first and second half cover is combined to form described fixed cover;
Described cylindrical shell consists of first and second half cylindrical shell that can be involutory, in first and second half cylindrical shell, is all filled with silicon gel, and cylindrical shell is installed in described fixed cover, and two bottom surfaces of cylindrical shell are provided with power supply cable and run through cylindrical shell to enter the threading structure in box body;
Described wiring mechanism has a wiring pedestal and a plurality of pressuring line structure, described wiring base-plates surface has a plurality of wiring positions for being connected with cable, at least at a wiring position place, be provided with the spine pad that surface has spine, described pressuring line structure is for being fixed the cable being placed on spine pad in wiring pedestal, when cable is pressed abd fixed on wiring pedestal, the spine of spine gasket surface can puncture the insulating barrier that is coated on cable current-carrying part periphery and contact with described current-carrying part.
Further, first and second half cylindrical shell of cylindrical shell be installed on respectively fixed cover first and second partly overlap inner surface.
Preferably, first and second partly overlaps inner surface and is equipped with limited impression, and first and second half barrel outer surface is provided with the spacing block set mating with the limited impression of first and second half cover respectively.
Further preferred, first and second half cover and first and second half cylindrical shell are variable-diameter structure, and one end that first and second half cover adjoins entrance hole is small end, away from one end of entrance hole, are large end; Match with first and second half cover, one end that first and second half cylindrical shell adjoins entrance hole is small end, away from one end of entrance hole, is large end.
Further preferred, the top of end box and lid is respectively equipped with collision mat ring recess, and one end that the first and second half cylindrical shells adjoin entrance hole is equipped with side opening, and described side opening can be communicated with the inner chamber of first and second half cylindrical shell with described collision mat ring recess.
Two bottom surfaces of cylindrical shell are provided with hole, and power supply cable runs through cylindrical shell to enter in box body.
Preferably, described cylindrical shell integral body is elastic material, and in two bottom surfaces of the first half cylindrical shells, at least its bottom surface away from entrance hole is for to consist of multi-disc flabellum, silicon gel in the being filled in the first half cylindrical shells effect of being under pressure and when excessive, described multi-disc flabellum can be expanded to outside; In two bottom surfaces of the second half cylindrical shells, at least its bottom surface away from entrance hole is for to consist of multi-disc flabellum, the silicon gel effect of being under pressure in being filled in the second half cylindrical shells and when excessive, described multi-disc flabellum can be expanded to outside.
Preferably, it is highly greater than the thickness of described insulating barrier the spine of spine gasket surface, and is less than the thickness sum of described insulating barrier and described current-carrying part.
Described pressuring line structure comprises line ball support and securing member, described line ball support pressure is on the cable that is placed in spine pad upper surface time, described line ball support can be fixed on wiring pedestal by described securing member, and cable is pressed between line ball support and spine pad.
Described cable is heating tape, wiring base-plates surface has the wiring position for being connected with the metal screen layer of heating tape, described pressuring line structure is for being fixed the heating tape that is placed in spine gasket surface in wiring pedestal, when heating tape is pressed abd fixed on wiring pedestal, the spine of spine gasket surface can puncture the insulating barrier that is coated on heating tape metal screen layer periphery, after puncturing, spine contacts with metal screen layer.
The technical scheme that the utility model provides has following beneficial effect:
The utility model is provided with waterproof construction near the entrance hole of terminal box, can play good waterproof effect, greatly improves the safety in utilization of terminal box.The terminal box providing, in cylindrical shell in its waterproof construction, be filled with silicon gel, further in cylindrical shell bottom surface, adopt blade structure, such terminal box, can extensively be adapted to the cable of the multiple section shapes such as flat, toroidal, more convenient to use, economic, practical, and water resistance is better.
Terminal box of the present utility model, when external cable line (as heating tape etc.) is connected in terminal box, can save the operation that divests in advance the insulating barrier that is coated on external cable line current-carrying part, has greatly saved the time, has improved efficiency.
Accompanying drawing explanation
Fig. 1 is terminal box decomposing schematic representation
Fig. 2 is the structure schematic diagram of the first half cylindrical shells or the second half cylindrical shells;
Fig. 3 is the structural representation that the first half cylindrical shells 301 are installed on the first half covers 201;
Fig. 4 a~Fig. 4 c is each step structural representation of terminal box installing cables line, only shows the wiring hole of terminal box and the structural representation at waterproof construction place in each figure, wherein:
Fig. 4 a is for to be placed in cable on end box;
Fig. 4 b is for to be covered on lid on end box;
Fig. 4 c is for to be fixed on nut 800 on fixed cover 200;
Fig. 5 is the schematic diagram of wiring mechanism 400;
Fig. 6 is connected to the schematic diagram on wiring pedestal by heating tape
Fig. 7 is the enlarged diagram at A place in Fig. 6;
Fig. 8 is the schematic diagram of internal wire 502;
Fig. 9 is the schematic diagram of internal wire 501;
Figure 10 is the schematic diagram that the conductor wire end of heating tape 601 is connected with internal wire;
Figure 11 is the schematic rear view of box at the bottom of terminal box;
Figure 12 is arranged on the schematic diagram on pipeline by terminal box.
Part description of reference numerals: 100 box bodys, 101 end boxes, 102 lids, 103, 104 collision mat ring recess, 105 the second half holes, 106 the first half holes, 200 fixed covers, 201 the first half covers, 202 the second half covers, 2021 limited impressions, 2022 small ends, 2023 hold greatly, 203 screw threads, 2031 lines, 301 the first half cylindrical shells, 302 the second half cylindrical shells, 304 small ends, 305 hold greatly, 306 spacing block sets, 307 side openings, 309 silicon gels, 400 wiring mechanisms, 401 wiring pedestals, 402 spine pads, 403 securing members, 404 line ball supports, 501, 502 internal wires, 600 cables, 700 power lines, 800 nuts, 901 electrical connection plastic components, 902 bands, 903 pipelines.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the decomposing schematic representation of terminal box, and terminal box has box body 100, some entrance holes and wiring mechanism.The box body of terminal box consists of end box 101 and lid 102, and lid can cover on end box.The top of end box and lid is respectively equipped with collision mat ring recess 103,104, in collision mat ring recess, installs after waterproof washer, and when lid 102 and end box 101 are covered, waterproof washer can play the effect of water-tight.End box and lid can adopt plastic material.
The entrance hole of terminal box is located at box body side, and entrance hole has a plurality of.Each entrance hole forms by two parts, specifically, each entrance hole consists of the first half holes 106 and corresponding the second half holes 105 of being located at lid 102 sides of being located at end box 101 sides, when lid 102 and end box 101 cover, the first half holes 106 and the second half holes 105 are combined to form an entrance hole.
In the position of adjoining entrance hole, be also provided with waterproof construction, this waterproof construction mainly comprises a fixed cover and a cylindrical shell.Fixed cover is involuted by two and half covers, for convenient, distinguish and describes, and this two and half cover is called the first half covers and the second half covers.The first half covers 201 are that the edge by the first half holes 106 of entrance hole outwards protrudes out and forms, and the second half 202, covers are that the edge by the second half holes 105 of entrance hole outwards protrudes out and forms.When lid 102 and end box 101 cover, the first half covers 201 and the second half covers 202 are combined to form a fixed cover 200.Cylindrical shell is quality of rubber materials, and cylindrical shell integral body is made by elastomeric material, and elastomeric material is such as being the existing elastomeric materials such as acrylonitrile-butadiene rubber, ethylene propylene diene rubber.Cylindrical shell is specifically involuted by two and half cylindrical shells 301,302, for convenient, distinguish and describes, and this two and half cylindrical shell is called the first half cylindrical shells 301 and the second half cylindrical shells 302.The first half cylindrical shells 301 and the second half cylindrical shells 302 all have a holding tank, are wherein all filled with silicon gel 309.This silicon gel is existing a kind of dielectric insulation silicon gel that can be used for semiconductor module, connector, sensor, it has good flexibility, high-temperature electric insulating properties, self-healing properties, the silicon gel SI3715 that this silicon gel for example can adopt PUNADE company to produce, it is a kind of transparent pair of component selfreparing silicon gel.
The first half cylindrical shells 301 and the second half cylindrical shells 302 are installed on respectively the first half covers 201 and the second half cover 202 inner surfaces of fixed cover, and when lid 102 and end box 101 cover, the first half cylindrical shells 301 and the second half cylindrical shells 302 are combined to form a cylindrical shell.The structure of the first half cylindrical shells 301 and the second half cylindrical shells 302 is basic identical, and the structure of first and second half cylindrical shell all can be referring to Fig. 2.In order to make the rotation that cylindrical shell can be not random in fixed cover 200, outer surface at first and second half cylindrical shell is equipped with a spacing block set 306, accordingly, first and second partly overlap inner surface be equipped with the limited impression 2021(of spacing block set coupling see Fig. 1).When first and second half cylindrical shell is installed on respectively first and second and partly overlaps inner surface, spacing block set 306 and limited impression 2021 clampings, when box lid and bottom lid closes, the cylindrical shell that first and second half cylindrical shell is combined to form can arbitrarily not rotate in fixed cover.
In order to improve water proofing property, an end side surface of adjoining entrance hole at the first half cylindrical shells 301 and the second half cylindrical shells 302 is equipped with side opening 307, can be referring to Fig. 2~3.Wherein Figure 3 shows that the first half cylindrical shells 301 in Fig. 1 are installed on the structural representation of the first half cover 201 inner surfaces.It is basic identical that the second half cylindrical shells 302 are arranged on structural representation and Fig. 3 of the second half cover 202 inner surfaces, can be with reference to shown in figure 3.When the first half cylindrical shells 301 being installed on to the first half cover 201 inner surfaces, the side opening 307 of the first half cylindrical shells can be communicated with the collision mat ring recess 103 on end box, the silicon gel 309 being filled in the first half cylindrical shells can link up by the waterproof washer in side opening and collision mat ring recess, thereby avoids water to enter in terminal box by capillarity from the gap between entrance hole and collision mat ring recess.Similarly, when the second half cylindrical shells 302 are arranged on the second half cover 202 inner surfaces, the side opening of the second half cylindrical shells can with lid on collision mat ring recess 104 be communicated with.
The first half covers 201 and the second half covers 202 also can further adopt variable-diameter structure, the structure of the first half covers and the second half covers is basic identical, take below the second half to overlap 202 and describe as example, referring to Fig. 1, one end that the second half covers adjoin entrance hole is one end 2022 that internal diameter is little, is referred to as small end.The second half covers are one end 2023 that internal diameter is large away from one end of entrance hole, are referred to as large end.Coupling therewith, the first half cylindrical shells 301 and the second half cylindrical shells 302 also can further adopt variable-diameter structure, and the structure of the first half cylindrical shells and the second half cylindrical shells is basic identical.Referring to Fig. 2, one end that first and second half cylindrical shell adjoins entrance hole is small end 304, and is large end 305 away from one end of entrance hole.After lid 102 and end box 101 are covered, first and second half cover is combined to form fixed cover, first and second half cylindrical shell is combined to form cylindrical shell, between the surface that cylindrical shell and fixed cover contact between the two, form a step, it plays anti-sealing and enters the effect in terminal box along the space between fixed cover and cylindrical shell, and adopting elastic material because cylindrical shell is whole, this step also contributes to improve sealing.
For the cable of powering runs through cylindrical shell to enter via entrance hole in the box body of terminal box, can on two bottom surfaces of cylindrical shell, offer hole realizes, this hole can be specifically by all offer half hole on two bottom surfaces of first and second half cylindrical shell, when first and second half cylindrical shell is involutory, form the hole on two bottom surfaces of cylindrical shell.But, the bottom surface of cylindrical shell can also be improved further, be explained below: referring to Fig. 1~3, in two bottom surfaces of first and second half cylindrical shell, that bottom surface 308(away from entrance hole is referred to as outer bottom) adopt the bottom surface structure formed by multi-disc flabellum 3081, because cylindrical shell integral body is elastic material, these flabellums are also elastic materials.Fig. 4 a~4c shows the use procedure of the terminal box that this cylindrical shell outer bottom 308 is blade structure, and for the ease of the clear waterproof construction that shows, Fig. 4 a~4c only shows the structural representation at entrance hole and waterproof construction place.As shown in Fig. 4 a, first cable 600 is layed in to the silicon gel upper surface being filled in the first half cylindrical shells 201, after the current-carrying part of cable is connected and fixed in end box, end box 101 and lid 102 are covered to (as shown in Figure 4 b), now, the second half covers and the first half overlap and are combined to form a fixed cover 200, the second half cylindrical shells and the first half cylindrical shells are combined to form a cylindrical shell, silicon gel in cylindrical shell outwards expands and overflows owing to being subject to the pressure-acting of cable 600, the flabellum 3081 of its outer bottom elastic material of cylindrical shell can expand and overflows and expand outwardly along with silicon gel is outside, make the outer bottom 308 of whole cylindrical shell roughly form conical, silicon gel in outer bottom is also the conical cable surface (can referring to Fig. 4 b) that is coated on, like this can well anti-sealing along the surface of cable, enter in terminal box.In order further to strengthen waterproof effect, in two bottom surfaces of first and second half cylindrical shell, the inner bottom surface that adjoins entrance hole also can further adopt the structure consisting of a plurality of flabellums.
In the terminal box that the utility model provides, when the first half cylindrical shells of cylindrical shell, the second half cylindrical shells are installed on respectively the first half covers, the second half cover inner surfaces of fixed cover, the first half cylindrical shells and the second half cylindrical shells are to extend to respectively the first half covers and the second half to overlap outside end away from the end 303 of entrance hole.And the distal outer surface of first and second half cylindrical shell all longitudinally convexes with some ribs 3031.The first half covers and the second half cover outer surfaces all have lines 2031, and when the two is involutory, the screw thread 203(of lines formation fixed cover outer surface of first and second half cover can be referring to Fig. 3,4a~4b).In terminal box use procedure (referring to Fig. 4 a~4c), the silicon gel upper surface that first cable 600 is layed in to the first half cylindrical shells 301 (is shown in Fig. 4 a), after the current-carrying part of cable is connected and fixed in end box, end box 101 and lid 102 are covered to (seeing Fig. 4 b), the first half cylindrical shells and the second half cylindrical shells are combined to form cylindrical shell, the first half covers and the second half overlap and are combined to form fixed cover 200, afterwards the nut 800 being enclosed within on cable is tightened on fixed cover 200 and (sees Fig. 4 c) by screw thread 203, now, the top of nut intracavity also compresses the end of cylindrical shell, because the inner surface at the top of nut has lines conventionally, these lines can with the rib phase mutual friction of first and second half barrel tip, be close to, thereby contribute to better to screw nut, avoid nut loosening.
See Fig. 1,5,6, the wiring mechanism in terminal box has a wiring pedestal 401 and a plurality of pressuring line structure.Wiring pedestal 401 is installed in end box, and wiring base-plates surface has a plurality of wiring positions for being connected with cable, at least at a wiring position place, is provided with the spine pad 402 that surface has spine 4021.Pressuring line structure is for being fixed the cable being placed on spine pad in wiring pedestal.Pressuring line structure comprises line ball support 404 and securing member 403, and securing member can have a plurality of.Line ball support pressure is on the cable that is placed in spine pad upper surface time, and line ball support 404 can be fixed on wiring pedestal 401 by securing member 403, and cable is pressed between line ball support and spine pad.When cable is pressed abd fixed on wiring pedestal, the spine of spine gasket surface can puncture the insulating barrier that is coated on cable current-carrying part periphery and contact with described current-carrying part.The all parts of wiring mechanism all adopts the metal material of conduction, such as copper etc.As a kind of preferred, line ball support 404 its middle part 4041 opposite ends in wiring mechanism upwards arch upward, and the cross sectional shape of its cross sectional shape of the middle part of arching upward and cable is suitable, thereby can better compress cable.
Terminal box of the present utility model can be used for the connection between heating tape and power line.Heating tape is in a kind of prior art, to be widely used in the tracing thermal-insulatings such as pipeline, tank body, antifreeze temperature control electric accompanying-heat cable.Take cable 600 as heating tape is example, to connecting heating tape by the utility model terminal box, describe.
For convenience of description and understand, first the basic structure of heating tape is introduced.As shown in Figure 7, it has and is embedded in the parallel conductor wire end 601 of two in PTC core band 602 bundle the basic structure of heating tape, and the first insulating barrier, metal screen layer 603, the second insulating barrier 604 that are coated on successively from the inside to the outside PTC core band 602 peripheries.Wherein, conductor wire end 601 inside are conductor wire core 6012, and conductor wire core 6012 peripheries are coated with insulating barrier 6011; Metal screen layer 603 has for ground connection and strengthens the effect of protecting, and the conductor wire core of two conductor wire end is respectively used to be electrically connected to live wire, zero line in power line.Heating tape is flat belt-like substantially, and conductor wire end 601 outwards protrudes out.
The terminal box that the utility model provides is when connecting heating tape, and the wiring pedestal 401 of its wiring mechanism 400 can be used for connecting the metal screen layer 603 of heating tape.Referring to Fig. 6,7,10, heating tape via incoming line enter into end box 101 interior after, the grounded part of heating tape (being coated with the region of metal screen layer) is positioned at spine pad 402 upper surfaces; Line ball mid-stent 4041 is pressed on heating tape, then with securing member 403, the two ends of line ball support is fixed on wiring pedestal 401; Now, heating tape has also been pressed between line ball support 404 and spine pad 402, and meanwhile, the spine 4021 of spine pad can puncture the second insulating barrier 604, and after puncturing, spine contacts with metal screen layer 603.If the ground wire of power line 700 and wiring pedestal 401 are electrically connected, the metal screen layer of heating tape can also form electric connection with the ground wire of power line.This has saved needed to divest the operation that is coated on the insulating barrier outside metal screen layer before heating tape ground connection, had greatly saved the time, had improved efficiency.
As a kind of preferred, it is highly greater than the thickness that heating tape is coated on the second insulating barrier 604 outside metal screen layer the spine 4021 of spine pad, and be less than the thickness sum of the second insulating barrier 604 and metal screen layer 603, the spine that can guarantee like this spine pad can puncture the second insulating barrier 604 and contact with metal screen layer 603, but can avoid piercing through metal screen layer 603.
See Fig. 1,8~9, in the box body of terminal box, also contain internal wire 501,502, on internal wire 501,502, all there is terminal screw 504 and packing ring 505 for fastening electric wire.Packing ring 505 surfaces have zigzag spine 5051, and on terminal screw 504, also cover has a pad 503.
When terminal box of the present utility model is used for connecting heating tape, two conductor wire end 601 of heating tape can be connected to realize with zero line, the live wire of power line with internal wire 501,502 respectively and be connected.The live wire of setting power line 700 is electrically connected to internal wire 502, and the zero line of power line 700 is electrically connected to internal wire 501, among two of heating tape conductor wire end 601 can realize and the live wire of power line is electrically connected to by being electrically connected to fetch with internal wire 502, and another conductor wire end can be by being electrically connected to internal wire 501 zero line that fetches realization and power line that is electrically connected.The connection of the conductor wire end of the internal wire in butted line box and heating tape below describes.
Referring to Figure 10, after heating tape enters in terminal box by incoming line, its conductor wire end 601 is positioned on the packing ring 505 of internal wire, by terminal screw 504, pad 503 and the packing ring 505 with spine are linked together, and be together fixed on end box 101 interior after, the spine 5051 on packing ring 505 surfaces can puncture the insulating barrier 6011 of conductor wire end 601, and contacts with conductor wire core 6012.Now, 601 of the conductor wire end of heating tape have realized with internal wire and being electrically connected to.Saved like this by the conductor wire end of heating tape when internal wire in terminal box is connected, need first divest or tear off the operation of the insulating barrier 6011 that is coated on conductor wire end conductor wire core 6012 outsides, thereby can greatly save time, raise the efficiency, easy to use.As a kind of preferred, packing ring 505 on internal wire 501,502, the height of its surperficial spine 5051 is greater than heating tape conductor wire end and is coated on the thickness of insulating layer outside conductor wire core, and be less than the thickness sum of this insulating barrier 6011 and conductor wire core 6012, the spine that can guarantee like this packing ring can puncture the insulating barrier of conductor wire end and contact with conductor wire core, but can avoid piercing through conductor wire core.
See Figure 11,12, end box 101 back sides of terminal box also can further have an arc-shaped concave 1011, offer a groove 1012 in arc-shaped concave, are fixed with a connecting rod 1013 in groove, between connecting rod 1013 and groove 1012 surfaces, have space.To be connected to before heating tape 600 in terminal box is wrapped in pipeline 903 surfaces that need insulation, can be by a band 902 through the space between connecting rod and groove surfaces, then band 902 is fastened on pipeline 903, thereby terminal box can be arranged on pipeline easily, and at the bottom of terminal box, the arc-shaped concave 1011 at the box back side can be preferably and pipe surface laminating, thereby be conducive to heating tape, on pipeline, is wound around.
The terminal box that the utility model provides, near its waterproof construction arranging wiring hole can play good waterproof effect, improves the fail safe that terminal box is used.Wiring mechanism in terminal box, its wiring pedestal is provided with spine pad, when external cable line (as heating tape etc.) is connected in terminal box, can save the operation that divests in advance the insulating barrier that is coated on external cable line current-carrying part, greatly save the time, improved efficiency.
It compares terminal box of the present utility model with the existing terminal box in this area, and main improvement is to be provided with waterproof construction as described above in the position of adjoining wiring hole, and in terminal box, has wiring mechanism as described above.Miscellaneous part in terminal box can be identical with the existing terminal box in this area with structure, for example the same with the existing terminal box in this area in box body, all can contain internal wire, electrical connection plastic components 901, end box bottom is provided with leg 108, end box and lid cover tightly as bolt 107 etc. by securing member.
The utility model is not limited to above-mentioned execution mode, every various changes of the present utility model or modification are not departed to spirit and scope of the present utility model, if these are changed and within modification belongs to claim of the present utility model and equivalent technologies scope, the utility model also means and comprises these changes and modification.

Claims (10)

1. a terminal box, comprise the box body, some entrance holes and the wiring mechanism that by the end box that can cover and lid, are formed, described wiring mechanism is located in end box, it is characterized in that, each entrance hole forms by the first half holes and corresponding the second half holes of being located at lid side of being located at end box side, in the position of adjoining described entrance hole, also have waterproof construction, described waterproof construction comprises fixed cover and cylindrical shell
Described fixed cover consists of the first half covers and the second half covers, and first and second half cover is outwards protruded out and forms by the edge in first and second half hole of entrance hole respectively, and when box lid and bottom lid closes, first and second half cover is combined to form described fixed cover;
Described cylindrical shell consists of first and second half cylindrical shell that can be involutory, in first and second half cylindrical shell, is all filled with silicon gel, and cylindrical shell is installed in described fixed cover, and two bottom surfaces of cylindrical shell are provided with power supply cable and run through cylindrical shell to enter the threading structure in box body;
Described wiring mechanism has a wiring pedestal and a plurality of pressuring line structure, described wiring base-plates surface has a plurality of wiring positions for being connected with cable, at least at a wiring position place, be provided with the spine pad that surface has spine, described pressuring line structure is for being fixed the cable being placed on spine pad in wiring pedestal, when cable is pressed abd fixed on wiring pedestal, the spine of spine gasket surface can puncture the insulating barrier that is coated on cable current-carrying part periphery and contact with described current-carrying part.
2. terminal box according to claim 1, is characterized in that, first and second of cylindrical shell half cylindrical shell be installed on respectively fixed cover first and second partly overlap inner surface.
3. terminal box according to claim 2, is characterized in that, first and second partly overlaps inner surface and is equipped with limited impression, and first and second half barrel outer surface is provided with the spacing block set mating with the limited impression of first and second half cover respectively.
4. terminal box according to claim 2, is characterized in that, first and second half cover and first and second half cylindrical shell are variable-diameter structure, and one end that first and second half cover adjoins entrance hole is small end, away from one end of entrance hole, is large end; Match with first and second half cover, one end that first and second half cylindrical shell adjoins entrance hole is small end, away from one end of entrance hole, is large end.
5. according to the terminal box of claim 2, it is characterized in that, the top of end box and lid is respectively equipped with collision mat ring recess, and one end that the first and second half cylindrical shells adjoin entrance hole is equipped with side opening, and described side opening can be communicated with the inner chamber of first and second half cylindrical shell with described collision mat ring recess.
6. terminal box according to claim 1, is characterized in that, two bottom surfaces of cylindrical shell are provided with hole, and power supply cable runs through cylindrical shell to enter in box body.
7. terminal box according to claim 1, it is characterized in that, described cylindrical shell integral body is elastic material, in two bottom surfaces of the first half cylindrical shells, at least its bottom surface away from entrance hole is for to consist of multi-disc flabellum, silicon gel in the being filled in the first half cylindrical shells effect of being under pressure and when excessive, described multi-disc flabellum can be expanded to outside; In two bottom surfaces of the second half cylindrical shells, at least its bottom surface away from entrance hole is for to consist of multi-disc flabellum, the silicon gel effect of being under pressure in being filled in the second half cylindrical shells and when excessive, described multi-disc flabellum can be expanded to outside.
8. terminal box according to claim 1, is characterized in that, it is highly greater than the thickness of described insulating barrier the spine of spine gasket surface, and is less than the thickness sum of described insulating barrier and described current-carrying part.
9. terminal box according to claim 1, it is characterized in that, described pressuring line structure comprises line ball support and securing member, described line ball support pressure is on the cable that is placed in spine pad upper surface time, described line ball support can be fixed on wiring pedestal by described securing member, and cable is pressed between line ball support and spine pad.
10. terminal box according to claim 1, it is characterized in that, described cable is heating tape, wiring base-plates surface has the wiring position for being connected with the metal screen layer of heating tape, described pressuring line structure is for being fixed the heating tape that is placed in spine gasket surface in wiring pedestal, when heating tape is pressed abd fixed on wiring pedestal, the spine of spine gasket surface can puncture the insulating barrier that is coated on heating tape metal screen layer periphery, after puncturing, spine contacts with metal screen layer.
CN201320778333.8U 2013-11-29 2013-11-29 Junction box Withdrawn - After Issue CN203722163U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103683145A (en) * 2013-11-29 2014-03-26 佛山市高明毅力温控器有限公司 Connection box
CN105846388A (en) * 2016-05-04 2016-08-10 佛山市高明毅力温控器有限公司 Waterproof cable connector and assembling method thereof
CN105987361A (en) * 2015-01-30 2016-10-05 海洋王照明科技股份有限公司 Junction box
CN107394713A (en) * 2017-09-20 2017-11-24 力神动力电池系统有限公司 Meet IP67 high-voltage connecting line box with shielding
CN110371824A (en) * 2019-06-03 2019-10-25 上海贝恩科电缆有限公司 A kind of Multi-functional accompanying cable is segmented fixed device up and down
CN114825194A (en) * 2022-06-10 2022-07-29 中建八局第二建设有限公司 Cable installation auxiliary device for building machine electricity

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103683145A (en) * 2013-11-29 2014-03-26 佛山市高明毅力温控器有限公司 Connection box
CN103683145B (en) * 2013-11-29 2016-04-27 佛山市高明毅力温控器有限公司 A kind of terminal box
CN105987361A (en) * 2015-01-30 2016-10-05 海洋王照明科技股份有限公司 Junction box
CN105846388A (en) * 2016-05-04 2016-08-10 佛山市高明毅力温控器有限公司 Waterproof cable connector and assembling method thereof
CN107394713A (en) * 2017-09-20 2017-11-24 力神动力电池系统有限公司 Meet IP67 high-voltage connecting line box with shielding
CN107394713B (en) * 2017-09-20 2023-08-04 力神(青岛)新能源有限公司 High-voltage junction box with shielding meeting IP67
CN110371824A (en) * 2019-06-03 2019-10-25 上海贝恩科电缆有限公司 A kind of Multi-functional accompanying cable is segmented fixed device up and down
CN114825194A (en) * 2022-06-10 2022-07-29 中建八局第二建设有限公司 Cable installation auxiliary device for building machine electricity

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