CN103683145B - A kind of terminal box - Google Patents
A kind of terminal box Download PDFInfo
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- CN103683145B CN103683145B CN201310632269.7A CN201310632269A CN103683145B CN 103683145 B CN103683145 B CN 103683145B CN 201310632269 A CN201310632269 A CN 201310632269A CN 103683145 B CN103683145 B CN 103683145B
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Abstract
The invention provides a kind of terminal box, comprise the box body be made up of the end box that can cover and lid, some entrance holes, and wiring mechanism, described wiring mechanism is located in end box, each entrance hole is formed by the first half bore and corresponding the second half bore being located at lid side being located at end box side, also there is waterproof construction in the position adjoining described entrance hole, described waterproof construction comprises fixed cover and cylindrical shell, described wiring mechanism has a wiring pedestal and multiple pressuring line structure, described wiring base-plates surface has multiple wiring position for being connected with cable, at least be provided with at a wiring position place spine pad that surface has spine, described pressuring line structure is for being fixed the cable be placed on spine pad in wiring pedestal.Terminal box of the present invention has good water resistance, and the current-carrying part of cable can be connected in terminal box by this terminal box more easily, more convenient to use, efficient.
Description
Technical field
The present invention 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 made up of a few parts such as end box, lid, entrance hole, wiring mechanism, connecting line, connectors.Terminal box when designing, consider waterproof insulation performance usually, avoids electric leakage of getting an electric shock, jeopardizes personal safety.At present, people are usually 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, thus causes electric leakage etc., there is very large potential safety hazard.Afterwards, people improve, and the entrance hole place namely entering box body at cable adds bolt and nut, and cable enters in box body through after the bolt of working in coordination and nut, and then is fixed in box body by cable.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, and same exist larger potential safety hazard.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 that is parallel to each other and is connected with the first side wall and the second sidewall be parallel to each other, the connection the first side wall of pair of angled setting and the connecting portion of the second sidewall is arranged with between described the first side wall and the second sidewall, the first side wall, second sidewall and connecting portion surround one jointly in order to accommodate the host cavity of conducting terminal, that face coordinates with the vertical of face between riveting part with connecting portion, thus play certain waterproof effect.
In addition, existing terminal box, before wire is connected in terminal box, usually to first divest or remove the insulating material being coated on wire, the conductor wire core of wire is come out, again conductor wire core is connected to afterwards on the wiring mechanism (such as binding post) in terminal box and realizes electrical connection.But very multiconductor insulating material divests very difficult, usually will expend a lot of time and efforts successfully could divest insulating barrier, and this greatly reduces the efficiency of wiring.Therefore, a kind of terminal box of simple and effective more that uses is provided to be necessary very much.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of the present invention is to provide the terminal box that a kind of water resistance is better, and the current-carrying part of cable can be connected in terminal box by this terminal box more easily, more convenient to use, efficient.
The present invention is for reaching its object, and the technical scheme adopted is as follows:
A kind of terminal box, comprise the box body be made up of the end box that can cover and lid, some entrance holes and wiring mechanism, described wiring mechanism is located in end box, each entrance hole is formed by the first half bore and corresponding the second half bore being located at lid side being located at end box side, also there is waterproof construction in the position adjoining described entrance hole, described waterproof construction comprises fixed cover and cylindrical shell
Described fixed cover is made up of the first half covers and the second half covers, and first and second half cover is outwards protruded out by the edge of first and second half bore of entrance hole respectively and formed, and when box lid and bottom lid closes, first and second half cover is combined to form described fixed cover;
Described cylindrical shell is made up of first and second half cylindrical shell that can be involutory, is all filled with Silica hydrogel in first and second half cylindrical shell, and cylindrical shell is installed in described fixed cover, and cylindrical shell two bottom surfaces 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 multiple pressuring line structure, described wiring base-plates surface has multiple wiring position for being connected with cable, at least be provided with at a wiring position place spine pad that surface has spine, described pressuring line structure is for being fixed in wiring pedestal by the cable be placed on spine pad, when cable is pressed abd fixed on wiring pedestal, the spine of spine gasket surface the insulating barrier being coated on cable current-carrying part periphery can be punctured and with described conductive portions contact.
Further, first and second half cylindrical shell of cylindrical shell be installed on fixed cover respectively first and second partly overlap inner surface.
Preferably, first and second half cover inner surface is equipped with limited impression, and first and second half barrel outer surface is provided with the spacing block set mated with first and second half limited impression overlapped respectively.
Preferred further, 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, and the one end away from entrance hole is large end; Half overlap with first and second and match, one end that first and second half cylindrical shell adjoins entrance hole is small end, and the one end away from 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 the inner chamber of first and second half cylindrical shell can be communicated with described collision mat ring recess by described side opening.
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 entirety is elastic material, in two bottom surfaces of the first half cylindrical shells, at least its away from the bottom surface of entrance hole for be made up of multi-disc flabellum, time excessive when being filled in the effect of being under pressure of the Silica hydrogel in the first half cylindrical shells, described multi-disc flabellum can externally be expanded; In two bottom surfaces of the second half cylindrical shells, at least it is away from the bottom surface of entrance hole for be made up of multi-disc flabellum, and time excessive when the Silica hydrogel effect of being under pressure be filled in the second half cylindrical shells, described multi-disc flabellum can externally be expanded.
Preferably, the spine of spine gasket surface its be highly greater than the thickness of described insulating barrier, and be 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, when described line ball support pressure is on the cable being placed in spine pad upper surface, described line ball support is 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 in wiring pedestal by the heating tape being placed in spine gasket surface, when heating tape is pressed abd fixed on wiring pedestal, the insulating barrier being coated on heating tape metal screen layer periphery can puncture by the spine of spine gasket surface, after puncturing, spine contacts with metal screen layer.
Technical scheme provided by the invention has following beneficial effect:
The present invention 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 provided, Silica hydrogel is filled with in cylindrical shell in its waterproof construction, further adopt blade structure in cylindrical shell bottom surface, such terminal box, extensively can be adapted to the cable of the multiple section such as flat, toroidal shape, more convenient to use, economic, practical, and water resistance is better.
Terminal box of the present invention, when being connected in terminal box by external cable line (as heating tape etc.), can saving the operation divesting the insulating barrier being coated on external cable line current-carrying part in advance, greatly saving the time, improve 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, illustrate only the wiring hole of terminal box and the structural representation at waterproof construction place in each figure, wherein:
Fig. 4 a is for be placed on end box by cable;
Fig. 4 b is for be covered on end box by lid;
Fig. 4 c is for be fixed on fixed cover 200 by nut 800;
Fig. 5 is the schematic diagram of wiring mechanism 400;
Fig. 6 is the schematic diagram be connected to by heating tape on wiring pedestal
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 conductor wire end 601 of heating tape be connected with internal wire;
Figure 11 is the schematic rear view of box at the bottom of terminal box;
Figure 12 is schematic diagram terminal box be arranged on pipeline.
Part description of reference numerals: 100 box bodys, 101 end boxes, 102 lids, 103, 104 collision mat ring recess, 105 second half bore, 106 first half bore, 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 Silica hydrogel, 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 present invention 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 is made up 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, and install waterproof washer in collision mat ring recess after, when lid 102 and end box 101 being 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 multiple.Each entrance hole forms by two parts, specifically, each entrance hole is made up of the first half bore 106 and corresponding the second half bore 105 being located at lid 102 side being located at end box 101 side, when lid 102 and end box 101 cover, the first half bore 106 and the second half bore 105 are combined to form an entrance hole.
Also be provided with waterproof construction in the position adjoining entrance hole, this waterproof construction mainly comprises a fixed cover and a cylindrical shell.Fixed cover is involuted by two and half covers, conveniently distinguishes 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 outwards protruded out by the edge of the first half bore 106 of entrance hole to be formed, and the second half 202, covers are outwards protruded out by the edge of the second half bore 105 of entrance hole to be formed.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 entirety is made up of elastomeric material, and elastomeric material is such as the existing elastomeric material such as acrylonitrile-butadiene rubber, ethylene propylene diene rubber.Cylindrical shell is specifically involuted by two and half cylindrical shells 301,302, conveniently distinguishes 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 Silica hydrogel 309.This Silica hydrogel is existing a kind of dielectric insulation Silica hydrogel that can be used for semiconductor module, connector, sensor, it has good flexibility, high-temperature electric insulating properties, self-healing properties, the Silica hydrogel SI3715 that this Silica hydrogel such as 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 the first half covers 201 and the second half cover 202 inner surfaces of fixed cover respectively, 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 first half cylindrical shells 301 are substantially identical with the structure of the second half cylindrical shells 302, and the structure of first and second half cylindrical shell all can see Fig. 2.In order to make the rotation that cylindrical shell can not be random in fixed cover 200, a spacing block set 306 is equipped with at the outer surface of first and second half cylindrical shell, accordingly, be equipped with at first and second half cover inner surface the limited impression 2021(mated with spacing block set and see Fig. 1).When first and second half cylindrical shell is installed on first and second half cover inner surface respectively, spacing block set 306 and limited impression 2021 clamping, when box lid and bottom lid closes, the cylindrical shell that first and second half cylindrical shell is combined to form can not arbitrarily rotate in fixed cover.
In order to improve water proofing property, the one end side adjoining entrance hole at the first half cylindrical shells 301 and the second half cylindrical shells 302 is equipped with side opening 307, can see Fig. 2 ~ 3.The first half cylindrical shells 301 that wherein Figure 3 shows that in Fig. 1 are installed on the structural representation of the first half cover 201 inner surfaces.The structural representation that the second half cylindrical shells 302 are arranged on the second half cover 202 inner surfaces is substantially identical with Fig. 3, can shown in reference diagram 3.When the first half cylindrical shells 301 being installed on 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 Silica hydrogel 309 be filled in the first half cylindrical shells can be linked up by the waterproof washer in side opening and collision mat ring recess, thus avoids water to be entered in terminal box by capillarity from the gap between entrance hole and collision mat ring recess.Similar, 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 then can be communicated with the collision mat ring recess 104 on lid.
The first half covers 201 and the second half covers 202 also can adopt variable-diameter structure further, the structure of the first half covers and the second half covers is substantially identical, overlaps 202 be below described, see Fig. 1 for the second half, 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.Mate therewith, the first half cylindrical shells 301 and the second half cylindrical shells 302 also can adopt variable-diameter structure further, and the first half cylindrical shells are substantially identical with the structure of the second half cylindrical shells.See 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, a step is formed therebetween between the surface that cylindrical shell and fixed cover contact, it plays anti-sealing and enters effect in terminal box along the space between fixed cover and cylindrical shell, and due to cylindrical shell entirety employing elastic material, this step also contributes to improving sealing.
Cylindrical shell is run through to enter in the box body of terminal box via entrance hole in order to cable of powering, can hole be offered realize on two of a cylindrical shell bottom surface, this hole can be specifically by all offering half bore on two bottom surfaces of first and second half cylindrical shell, when first and second half cylindrical shell is involutory, form the hole on cylindrical shell two bottom surfaces.But, the bottom surface of cylindrical shell can also be improved further, be explained below: see 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 be made up of multi-disc flabellum 3081, because cylindrical shell entirety is elastic material, these flabellums are also elastic materials.Fig. 4 a ~ 4c shows the use procedure that this cylindrical shell outer bottom 308 is the terminal box of blade structure, and for the ease of clear display waterproof construction, Fig. 4 a ~ 4c illustrate only the structural representation at entrance hole and waterproof construction place.As shown in fig. 4 a, first cable 600 is layed in the Silica hydrogel upper surface be 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 (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, Silica hydrogel in cylindrical shell is owing to being subject to the pressure effect of cable 600 and the spilling that outwards expands, flabellum 3081 meeting of its outer bottom elastic material of cylindrical shell is overflowed along with Silica hydrogel outwards expands and expands outwardly, the outer bottom 308 of whole cylindrical shell is made roughly to form taper shape, Silica hydrogel in outer bottom is also conically coated on cable surface (can see Fig. 4 b), can well enter in terminal box along the surface of cable by anti-sealing like this.In order to strengthen waterproof effect further, in two bottom surfaces of first and second half cylindrical shell, the inner bottom surface adjoining entrance hole also can adopt the structure be made up of multiple flabellum further.
In terminal box provided by the invention, when the first half cylindrical shells of cylindrical shell, the second half cylindrical shells are installed on the first half covers, the second half cover inner surfaces of fixed cover respectively, the first half cylindrical shells and the second half cylindrical shells are extend to the first half covers and the second half respectively to overlap outside end away from the end 303 of entrance hole.And the distal outer surface of first and second half cylindrical shell is all longitudinally convexly equipped 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 see Fig. 3,4a ~ 4b).In terminal box use procedure (see Fig. 4 a ~ 4c), first cable 600 is layed in the Silica hydrogel upper surface of the first half cylindrical shells 301 (see 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 (see 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 be enclosed within cable is tightened in (see Fig. 4 c) on fixed cover 200 by screw thread 203, now, the end of cylindrical shell also compresses by the top of nut intracavity, because the inner surface at the top of nut has lines usually, these lines can with the rib phase mutual friction of first and second half barrel tip, be close to, thus contribute to better tightening nut, avoid nut loosening.
See Fig. 1,5,6, the wiring mechanism in terminal box has a wiring pedestal 401 and multiple pressuring line structure.Wiring pedestal 401 is installed in end box, and wiring base-plates surface has multiple wiring position for being connected with cable, is at least provided with at a wiring position place spine pad 402 that surface has spine 4021.Pressuring line structure is for being fixed the cable be placed on spine pad in wiring pedestal.Pressuring line structure comprises line ball support 404 and securing member 403, and securing member can have multiple.When line ball support pressure is on the cable being placed in spine pad upper surface, line ball support 404 is 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 the insulating barrier being coated on cable current-carrying part periphery can be punctured and with described conductive portions contact.The all parts of wiring mechanism all adopts the metal material of conduction, such as copper etc.Preferred as one, the line ball support 404 in wiring mechanism in the middle part of it 4041 opposite ends upwards arch upward, the cross sectional shape of its cross sectional shape of the middle part of arching upward and cable is suitable, thus better can compress cable.
Terminal box of the present invention can be used for the connection between heating tape and power line.Heating tape is widely used in the tracing thermal-insulating such as pipeline, tank body, antifreeze temperature control electric accompanying-heat cable in a kind of prior art.For cable 600 for heating tape, be described connecting heating tape by terminal box of the present invention.
For convenience of description and understand, first the basic structure of heating tape is introduced.As shown in Figure 7, it has the parallel conductor wire end 601 of two bundles be embedded in PTC core ribbon 602 to the basic structure of heating tape, and is coated on the first insulating barrier, metal screen layer 603, second insulating barrier 604 of PTC core ribbon 602 periphery from the inside to the outside successively.Wherein, conductor wire end 601 inside is conductor wire core 6012, and conductor wire core 6012 periphery is coated with insulating barrier 6011; Metal screen layer 603 has for ground connection and the effect strengthening protection, and the conductor wire core of two conductor wire end is respectively used to be electrically connected with the live wire in power line, zero line.Heating tape is flat belt-like substantially, and conductor wire end 601 outwards protrudes out.
When terminal box provided by the invention is for connecting heating tape, the wiring pedestal 401 of its wiring mechanism 400 can be used for the metal screen layer 603 connecting heating tape.See Fig. 6,7,10, heating tape enters into after in end box 101 via incoming line, and the grounded part (being coated with the region of metal screen layer) of heating tape is positioned at spine pad 402 upper surface; 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 second insulating barrier 604 can puncture by the spine 4021 of spine pad, 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 then also can form electric connection with the ground wire of power line.This eliminate the operation needing to divest the insulating barrier be coated on outside metal screen layer before heating tape ground connection, greatly save the time, improve efficiency.
Preferred as one, the spine 4021 of spine pad its be highly greater than the thickness that heating tape is coated on the second insulating barrier 604 outside metal screen layer, and be less than the thickness sum of the second insulating barrier 604 and metal screen layer 603, can guarantee that the spine of spine pad can puncture the second insulating barrier 604 and contact with metal screen layer 603 like this, 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 internal wire 501,502 all to have the terminal screws 504 for fastening electric wire and packing ring 505.Packing ring 505 surface has zigzag spine 5051, and on terminal screws 504, also cover has a pad 503.
When terminal box of the present invention is for connecting heating tape, two conductor wire end 601 of heating tape can be connected with internal wire 501,502 respectively and realize being connected with the zero line of power line, live wire.The live wire of setting power line 700 is electrically connected with internal wire 502, and the zero line of power line 700 is electrically connected with internal wire 501, one among two conductor wire end 601 of then heating tape can by and internal wire 502 be electrically connected to fetch and realize and the live wire electrical connection of power line, another conductor wire end then can by and internal wire 501 zero line fetching realization and power line that is electrically connected be electrically connected.The connection of the internal wire below in butted line box and the conductor wire end of heating tape is described.
See Figure 10, heating tape is entered into after in terminal box by incoming line, its conductor wire end 601 is positioned on the packing ring 505 of internal wire, link together by the packing ring 505 of terminal screws 504 by pad 503 and band spine, and be together fixed on after in end box 101, the spine 5051 on packing ring 505 surface can puncture the insulating barrier 6011 of conductor wire end 601, and contacts with conductor wire core 6012.Now, the conductor wire end 601 of heating tape achieves and is electrically connected with internal wire.This eliminate when the conductor wire end of heating tape is connected with the internal wire in terminal box, need first divest or tear off the operation of the insulating barrier 6011 being coated on conductor wire end conductor wire core 6012 outside, thus can greatly save time, raise the efficiency, easy to use.Preferred as one, packing ring 505 on internal wire 501,502, the height of the spine 5051 on its surface is greater than heating tape conductor wire end and is coated on 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, can guarantee that the spine of packing ring can puncture the insulating barrier of conductor wire end and contact with conductor wire core like this, but can avoid piercing through conductor wire core.
See Figure 11,12, end box 101 back side of terminal box also can have an arc-shaped concave 1011 further, offers a groove 1012 in arc-shaped concave, is fixed with a connecting rod 1013 in groove, has space between connecting rod 1013 and groove 1012 surface.Before the heating tape be connected in terminal box 600 being wrapped in pipeline 903 surface needing insulation, can by a band 902 through the space connecting rod and groove surfaces, then band 902 is fastened on pipeline 903, thus make terminal box to be arranged on pipeline easily, and the arc-shaped concave 1011 at the box back side at the bottom of terminal box preferably and pipe surface laminating, thus can be conducive to heating tape and is wound around on pipeline.
Terminal box provided by the invention, its waterproof construction arranged near wiring hole can play good waterproof effect, improves the fail safe that terminal box uses.Wiring mechanism in terminal box, its wiring pedestal is provided with spine pad, when being connected in terminal box by external cable line (as heating tape etc.), can save the operation divesting the insulating barrier being coated on external cable line current-carrying part in advance, greatly save the time, improve efficiency.
Terminal box of the present invention its compared with the existing terminal box in this area, main improve the waterproof construction being to be provided with in the position adjoining wiring hole as described above, and there is in terminal box wiring mechanism as described above.Miscellaneous part in terminal box can be identical with the existing terminal box in this area with structure, such as, in box body the same with the existing terminal box in this area, all can contain internal wire, electrical connection plastic components 901, leg 108 is installed bottom end box, end box and lid by securing member as bolt 107 etc. covers tightly.
The present invention is not limited to above-mentioned execution mode, every the spirit and scope of the present invention are not departed to various change of the present invention or modification, if these are changed and modification belongs within claim of the present invention and equivalent technologies scope, then the present invention also means that comprising these changes and modification.
Claims (10)
1. a terminal box, comprise the box body be made up of the end box that can cover and lid, some entrance holes and wiring mechanism, described wiring mechanism is located in end box, it is characterized in that, each entrance hole is formed by the first half bore and corresponding the second half bore being located at lid side being located at end box side, also have waterproof construction in the position adjoining described entrance hole, described waterproof construction comprises fixed cover and cylindrical shell
Described fixed cover is made up of the first half covers and the second half covers, and first and second half cover is outwards protruded out by the edge of first and second half bore of entrance hole respectively and formed, and when box lid and bottom lid closes, first and second half cover is combined to form described fixed cover;
Described cylindrical shell is made up of first and second half cylindrical shell that can be involutory, is all filled with Silica hydrogel in first and second half cylindrical shell, and cylindrical shell is installed in described fixed cover, and cylindrical shell two bottom surfaces 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 multiple pressuring line structure, described wiring base-plates surface has multiple wiring position for being connected with cable, at least be provided with at a wiring position place spine pad that surface has spine, described pressuring line structure is for being fixed in wiring pedestal by the cable be placed on spine pad, when cable is pressed abd fixed on wiring pedestal, the spine of spine gasket surface the insulating barrier being coated on cable current-carrying part periphery can be punctured and with described conductive portions contact.
2. terminal box according to claim 1, is characterized in that, first and second half cylindrical shell of cylindrical shell be installed on fixed cover respectively first and second partly overlap inner surface.
3. terminal box according to claim 2, is characterized in that, first and second half cover inner surface is equipped with limited impression, and first and second half barrel outer surface is provided with the spacing block set mated with first and second half limited impression overlapped 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, and the one end away from entrance hole is large end; Half overlap with first and second and match, one end that first and second half cylindrical shell adjoins entrance hole is small end, and the one end away from entrance hole is large end.
5. terminal box according to 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 the inner chamber of first and second half cylindrical shell can be communicated with described collision mat ring recess by described side opening.
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 entirety is elastic material, in two bottom surfaces of the first half cylindrical shells, at least its away from the bottom surface of entrance hole for be made up of multi-disc flabellum, time excessive when being filled in the effect of being under pressure of the Silica hydrogel in the first half cylindrical shells, described multi-disc flabellum can externally be expanded; In two bottom surfaces of the second half cylindrical shells, at least it is away from the bottom surface of entrance hole for be made up of multi-disc flabellum, and time excessive when the Silica hydrogel effect of being under pressure be filled in the second half cylindrical shells, described multi-disc flabellum can externally be expanded.
8. terminal box according to claim 1, is characterized in that, the spine of spine gasket surface its be highly greater than the thickness of described insulating barrier, and be 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, when described line ball support pressure is on the cable being placed in spine pad upper surface, described line ball support is 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 in wiring pedestal by the heating tape being placed in spine gasket surface, when heating tape is pressed abd fixed on wiring pedestal, the insulating barrier being coated on heating tape metal screen layer periphery can puncture by the spine of spine gasket surface, after puncturing, spine contacts with metal screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310632269.7A CN103683145B (en) | 2013-11-29 | 2013-11-29 | A kind of terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310632269.7A CN103683145B (en) | 2013-11-29 | 2013-11-29 | A kind of terminal box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103683145A CN103683145A (en) | 2014-03-26 |
| CN103683145B true CN103683145B (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310632269.7A Active CN103683145B (en) | 2013-11-29 | 2013-11-29 | A kind of terminal box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015181021A1 (en) * | 2014-05-28 | 2015-12-03 | Multi-Holding Ag | Electrical connection device |
| CN105449403B (en) * | 2014-08-28 | 2018-03-30 | 欧普照明股份有限公司 | A kind of lighting apparatus tee connector and tee connector combination |
| CN105987361A (en) * | 2015-01-30 | 2016-10-05 | 海洋王照明科技股份有限公司 | Junction box |
| CN104734094A (en) * | 2015-02-27 | 2015-06-24 | 宁波广瑞通信技术有限公司 | Telephone or network line joint waterproof protection box |
| JP6436353B2 (en) * | 2015-11-16 | 2018-12-12 | 株式会社オートネットワーク技術研究所 | Circuit assembly and electrical junction box |
| CN105680226B (en) * | 2016-02-29 | 2018-05-18 | 深圳大成创安达电子科技发展有限公司 | Foam type waterproof wiring presss from both sides |
| CN106068040B (en) * | 2016-07-22 | 2023-03-31 | 圣拓热控科技江苏有限公司 | Explosion-proof tail terminal box |
| DE102017107927A1 (en) * | 2017-04-12 | 2018-10-18 | Rehau Ag + Co | Housing for receiving an electronic display device for displaying goods-related information |
| CN107947071B (en) * | 2017-12-19 | 2023-09-19 | 资阳中车电气科技有限公司 | Shielding waterproof structure of high-voltage junction box and mounting and fixing method |
| CN108923158B (en) * | 2018-08-21 | 2023-08-11 | 上海航天科工电器研究院有限公司 | OT terminal junction box capable of rapidly uncovering |
| CN109950445B (en) * | 2019-03-28 | 2021-11-23 | 珠海博杰电子股份有限公司 | Battery box assembling method |
| CN110031119B (en) * | 2019-05-21 | 2020-09-01 | 友光电线电缆有限公司 | Reducing cable wiring system with temperature control alarm system |
| CN112688253A (en) * | 2020-12-18 | 2021-04-20 | 程秀珍 | Thing networking smart meter is checked meter and is used waterproof terminal box |
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| EP2181489A1 (en) * | 2007-08-22 | 2010-05-05 | Roxtec Ab | Adjustable module |
| CN202678375U (en) * | 2012-08-01 | 2013-01-16 | 山东迪一电子科技有限公司 | Portable solar photovoltaic junction box |
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