CN1808807A

CN1808807A - Terminal box

Info

Publication number: CN1808807A
Application number: CNA2006100495141A
Authority: CN
Inventors: 岑振华
Original assignee: 岑振华
Current assignee: Ningbo GZX PV Technology Co., Ltd.
Priority date: 2006-02-16
Filing date: 2006-02-16
Publication date: 2006-07-26
Anticipated expiration: 2026-02-16
Also published as: CN100435439C

Abstract

This invention relates to one connection box, which comprises box with connection unit inside, and exit hole on sidewall and connection terminal on top connected to the terminal and unit; the connection terminal is composed of socket and plug through and fixing into the exit hole; the plug is set with one connection unit metal core; plug is connected to the back end of the socket through one connection structure as card connection; the plug front end has two extracting elastic card covering with back two sides with two outside protruding parts each with one card hole; plug is set with metal connection part connected to the wire with front touch to the metal connection part.

Description

A kind of terminal box

Technical field

The present invention relates to a kind of terminal box, the quick connection that this terminal box is mainly used in power lead in the solar module and other lead with remove stage makeup and costume.

Background technology

Various terminal boxes are arranged on the market in front, what have is used for solar water heater, what have is used for the solar power generation assembly, its structure of existing solar assembly junction box is generally: include by upper cartridge body and lower box body and be fixed together and the box body formed, fixed form between them can be a screw, also can be to be fixed together between the two by Elastic buckle, at least one or a plurality of wiring units in the box body, at least two wire holes on the sidewall of box body, wire hole is provided with junction block, the junction block front end has the connecting portion that matches with wire hole, external screw thread has been attacked in the outer face of connecting portion, after described connecting portion passes the sidewall of box body, the other end at sidewall is fixed on the sidewall of box body with nut check, the place ahead that is positioned at wiring units in box body also is provided with two lead fixed seats, the positive electrical of these two lead fixed seats one of them and wiring units links together, the negative electricity of another and wiring units links together, after lead passes junction block and enters in the box body, be fixed together with the lead fixed seat, holder has the jack that the insert head for the line trap assembly inserts, and the holder top holding screw that has been threaded, lead is screwed together after being plugged in the jack again, after lead passes junction block and is fixed on the lead fixed seat, upper cartridge body and lower box body are being fixed together, this structure has lead is fixedly secured on the lead fixed seat, be not easy loose or dislocation, improved the reliability of contact conduction.

But above-mentioned quick connector is when wiring or thread-changing, it must be opened upper cartridge body, unscrew the screw on the lead fixed seat (or binding post) again, lead could be pulled away quick connector, again to connecting the line on the quick connector again, so there is the defective of wiring, thread-changing inconvenience in it, also has it when each thread-changing, also lead must be extracted wiring units fully, therefore increase the difficulty of thread-changing, so above-mentioned quick connector also can improve further.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of wiring, thread-changing terminal box simply and easily at above-mentioned prior art present situation, its have need not box body opened just can connect, the characteristics of thread-changing operation.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of terminal box, include box body, at least be provided with a wiring units in the box body, at least have a wire hole on the sidewall of box body, wire hole is provided with one binding post, links to each other with wiring units after having lead to pass binding post; It is characterized in that described binding post is made up of socket and plug; Socket wears and is fixed in the wire hole, is provided with one metal-coredly in the socket, and metal-cored the inner enters in the box body and links to each other with wiring units, and the outer end is contained in the socket; Plug removably is connected the rear end of socket by a syndeton, is inserted with metal connecting piece in the plug, and this metal connecting piece rear end links to each other with lead fixed, is plugged at plug under the state of rear end of socket, and metal-cored front end contacts with metal connecting piece.

Above-mentioned syndeton is that buckle connects, this buckle connects and comprises: have two Elastic buckles that extend forward in the both sides of plug head, have two male part in the both sides, rear end of socket, on these two male part, respectively have one and block the hole clipping of joining mutually with Elastic buckle, adopt the connected mode of this buckle simple in structure, and can easily plug be fastened on the socket, and connect also relatively firmly, certainly also can adopt other ground connected mode, as be threaded or the like.

Above-mentioned socket has through hole along its length, have one with the separated next door of through hole at the middle part of through hole, describedly metal-coredly wear and be fixed on the next door, adopt the advantage of this structure to be: when we do not have wiring is that plug is not when plugging, the next door that is arranged in the socket through hole just can prevent that extraneous current from flowing in the box body in through hole, and then damages the wiring units in the box body; Described metal-cored middle part has a convex shoulder, under the metal-cored state that plugs on the spacing next door, described convex shoulder rear end face and upper surface, next door contact, establish effect by convex shoulder on metal-cored and the retaining between the next door, but whether we put metal-cored being installed in the socket in place, and it also can prevent to extract from socket the place ahead metal-cored.

The front end of above-mentioned plug has the insertion section that can insert through hole and hollow, because plug head has the insertion section, described metal connecting piece promptly is plugged in the insertion section of this hollow, under the state in plug is inserted into socket, insertion section on the plug is inserted in the through hole, increased connection stability between the plug and socket, and, outer surface in this insertion section also is arranged with seal washer, under the insertion section plugs state in the through hole, further strengthened the water resistance between the plug and socket again like this.

Last socket front end has the connecting portion that matches with wire hole, after described connecting portion passes the sidewall of box body, and fix by a nut check that is screwed onto the connecting portion periphery, adopt this locate mode fairly simple and firm, socket can not be taken out in the box body outside, also have in box body inside and use screw-threaded coupling, it can increase the sealing between socket and the wire hole, also can adopt other existing various fixed forms certainly.

Above-mentioned wiring units includes positive pole and negative pole, have two wire holes on the sidewall of described box body, described socket and plug also respectively are two, metal-cored end in described one of them socket enters in the box body and links to each other with the positive pole of wiring units, metal-cored end in another socket enters in the box body and links to each other with the negative pole of wiring units, the number of wire hole is relevant with our design, if this terminal box is to be used for the solar power generation aspect, its wire hole just is two so, one connects positive pole, one connects negative pole, also can reserve a plurality of wire holes certainly again with standby, the time standby wire hole is not closed.

Above-mentioned plug rear end has connecting portion, external screw thread has been attacked in the outer face of connecting portion, on this connecting portion, be connected with an end cap, described lead and metal connecting piece enter in the socket after passing end cap again, after lead connects, screw on end cap like this, lead can be linked together with socket, plug and wiring units more securely.

It has a central through hole above-mentioned metal connecting piece, be plugged at plug under the state of rear end of socket, metal-cored in the socket is inserted in the central through hole of metal connecting piece and with the central through hole inwall and contact, can better guarantee between metal-cored and the metal connecting piece stable contiguously like this.

Above-mentioned syndeton is that buckle connects, this buckle connects and comprises: have two Elastic buckles that extend forward in the both sides of socket rear end, have two male part in the front end both sides of plug, on these two male part, respectively have one and block the hole clipping of joining mutually with Elastic buckle, adopting this structure is the equal of that other is constant with the mutual reversing of position in the position of above-mentioned socket and plug.

Compared with prior art, the invention has the advantages that: rear socket is installed is all the time on the sidewall that is fixed on box body, plug then is detachably connected on the socket by the buckle ways of connecting, like this when we want thread-changing, only need pull the plug out of the socket earlier, make plug break away from socket, plug then conducting metal connector and lead breaks away from socket together, extract lead again, the metal connecting piece that conductor strip is automatically connected in the lead front end detaches plug together, after more finishing changing lead, then earlier lead is inserted in the plug together with metal connecting piece, can finish whole thread-changing process on the socket in that plug is plugged, so it need not to open box body and also can carry out thread-changing to it, whole thread-changing process is simple and convenient; Also have described metal-cored be to be fixed in the socket, and metal-cored the contact all the time with wiring units is electrically connected, and therefore need not to extract outside the box body metal-cored in the thread-changing process, thereby effectively guaranteed metal-cored and the wiring units connection stability.

Description of drawings

Fig. 1 is the structural representation (removing under plug, the lead state) of the embodiment of the invention;

Fig. 2 is the perspective exploded view (removing under the upper cartridge body state) of the embodiment of the invention;

Fig. 3 is the end view (removing under the upper cartridge body state) of the embodiment of the invention;

Fig. 4 is that the A-A of Fig. 3 is to cutaway view.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

A kind of terminal box shown in Fig. 1～4, include the box body made from engineering plastics 1, box body 1 is connected and fixed by upper cartridge body 12 and lower box body 11 two parts and forms, the mode that is connected and fixed between them can be a screw, also can be to be fixed together between the two by Elastic buckle, this mode that is connected and fixed is a routine techniques, just do not launching detailed elaboration at this, at least be provided with a plurality of wiring units 2 in the box body 1, these a plurality of wiring units are connected in parallel, wiring units 2 front ends are provided with two patchholes, one of them is anodal patchhole, and another is the negative pole patchhole, on the sidewall of box body 1 front end, have two and patchhole over against wire hole 111, respectively be provided with one binding post 3 on these two wire holes 111, have lead 4 to pass binding post 3 backs and link to each other with wiring units 2;

Described binding post 3 is made up of socket 31 and plug 32, as Fig. 2, shown in 4, socket 31 front ends have the connecting portion 315 that matches with wire hole 111, the periphery of connecting portion 315 has been attacked external screw thread, after described connecting portion 315 passes wire hole 111, the other end at sidewall is locked with nut 7, and then be fixed in the wire hole 111, socket 21 has through hole 313 along its length, have one with through hole 313 separated next doors 314 at the middle part of through hole 313, be provided with one metal-cored 5 in the socket 31, metal-cored 5 wear and spacing next door 314 on, metal-cored 5 inner end portion is exposed the outside of socket 31, outer end portion then is contained in the socket 31, metal-cored 5 middle parts have a convex shoulder 51, plug under the state that is fixed on the next door 314 metal-cored 5, described convex shoulder 51 rear end faces and 314 upper surfaces, next door contact, after entering in the box body 1, the inner of metal-cored 5 in one of them socket 31 is plugged in the anodal patchhole of wiring units 2, be plugged in the negative pole patchhole of wiring units 2 after the inner of metal-cored 5 in another socket 31 enters in the box body 1, two above-mentioned metal-cored 5 outer ends then are contained in respectively in the corresponding socket 31;

Plug 32 removably is connected the rear end of socket 31 by a syndeton, the front end of plug 32 has the insertion section 322 that can insert through hole 313 and hollow, 322 outer faces are arranged with two seal washers 8 in the insertion section, be inserted with metal connecting piece 6 in the plug 32, metal connecting piece 6 previous sections plug and enter in the insertion section 322, the rear section is contained in the plug 32, metal connecting piece 6 rear ends and lead 4 are fixedly linked, metal connecting piece 6 has a central through hole 61, be plugged at plug 32 under the state of rear end of socket 31, metal-cored 5 in the socket 31 is inserted in the central through hole 61 of metal connecting piece 6 and with central through hole 51 inwalls and contacts;

Above-mentioned syndeton is that buckle connects, this buckle connects and comprises: have two Elastic buckles 321 that extend forward in the both sides of plug 32 front ends, have two male part 311 in the both sides, rear end of socket 31, on these two male part 311, respectively have one and block the hole clipping 312 of joining mutually with Elastic buckle 321;

Above-mentioned plug 32 rear ends have connecting portion 323, and external screw thread has been attacked in the outer face of connecting portion 323, are connected with an end cap 9 on this connecting portion 323, and described lead 4 and metal connecting piece 6 enter in the socket 31 after passing end cap 9 again.

Terminal box involved in the present invention is performed such to install and is connected with lead:

During installation, the first step earlier will metal-cored 5 wears and is fixed on the interior next door 314 of through hole on the socket 31 313, again the connecting portion 315 of socket is located in the wire hole 111 separately, the other end at box body 1 sidewall is locked with nut 7, in one of them socket 31 metal-cored 5 is plugged in the anodal patchhole of wiring units 2 at this moment, in another socket 31 metal-cored 5 is plugged in the negative pole patchhole of wiring units 2, finish the work that whole socket 31 is fixed on box body 1 sidewall, cover upper cartridge body 12 then, and upper cartridge body 12 and lower box body 11 be fixed together form complete box body 1; After passing end cap 9, the lead 4 that second step will be connected with metal connecting piece 6 enters in the plug 32, wherein the previous section of metal connecting piece 6 is contained in the insertion section 322 of plug 32, aft section then is contained in the plug 32, again the insertion section 322 of plug 32 front ends is inserted into the rear end of through hole 313 on the socket 31, in this moment socket 31 metal-cored 5 is inserted in central through hole 52 front ends of metal connecting piece 6 and with the inwall of metal connecting piece 6 and contacts, Elastic buckle 321 on the plug 32 is inserted into the hole clipping 312 interior blockings on two male part 311 in socket 31 rear ends simultaneously, finish and whole plug 32 is connected work on the socket 31, screw on end cap 9 at last, end cap 9 is fixed on the connecting portion 323 of plug 32 rear ends.

During thread-changing, only need pull the plug out of the socket 32 earlier, make Elastic buckle 321 break away from the blocking of hole clipping 312,32 of plugs and metal connecting piece 6 and lead 4 break away from socket 31 together simultaneously, extract lead 4 again, lead 4 drives the metal connecting piece 6 that is connected lead 4 front ends and detaches plug 32 together, carry out restringing 4 again, after more finishing changing lead 4, then earlier lead 4 is inserted in the plug 32 together with metal connecting piece 6, again plug 32 is plugged the whole thread-changing process of to finish on the socket 31, so it need not to open box body 1 and also can carry out thread-changing to it.

Certainly; we also can oppositely be fixed on above-mentioned plug 32 in the wire hole 111; be equivalent to the position of plug 32 and socket 31 is changed the orientation mutually; at this moment we then revolve end cap 9 on the connecting portion 315 that is located at socket 31 front ends; but its principle is the same with the claimed structure of this claim, and therefore this change also belongs to the scope of our protection.

This terminal box can singlely be used in use, when the use that also can a plurality ofly be together in parallel, single use, then with on the same box body with the anodal lead that links to each other of wiring units with the wiring units negative pole on lead directly link to each other; And during two same terminal boxes in parallel use, then with on first box body with the anodal lead that links to each other of wiring units and second box body on the lead that links to each other with the wiring units negative pole directly continuous, on second box body with the anodal lead that links to each other of wiring units and first box body on the lead that links to each other with the wiring units negative pole directly continuous, thereby form complete loop; Link to each other as the terminal box more than three or three, its connected mode is analogized.

Though design of the present invention comes from the solar power generation assembly, its plug-in design also can be used for the terminal box of other field.

Claims

1, a kind of terminal box, include box body (1), at least be provided with a wiring units (2) in the box body (1), at least have a wire hole (111) on the sidewall of box body (1), wire hole (111) is provided with binding post (3), has lead (4) to pass binding post (3) back and links to each other with wiring units (2);

It is characterized in that described binding post (3) is made up of socket (31) and plug (32);

Socket (31) wears and is fixed in the wire hole (211), is provided with one metal-cored (5) in the socket (31), and the inner of metal-cored (5) enters in the box body (1) and links to each other with wiring units (2), and the outer end is contained in the socket (31);

Plug (32) removably is connected the rear end of socket (31) by a syndeton, be inserted with metal connecting piece (6) in the plug (32), this metal connecting piece (6) rear end and lead (4) are fixedly linked, be plugged at plug (32) under the state of rear end of socket (31), the front end of metal-cored (5) contacts with metal connecting piece (6).

2, terminal box according to claim 1, it is characterized in that described syndeton is that buckle connects, this buckle connects and comprises: have two Elastic buckles (321) that extend forward in the both sides of plug (32) front end, have two male part (311) in the both sides, rear end of socket (31), on these two male part (311), respectively have one and block the hole clipping (312) of joining mutually with Elastic buckle (321).

3, terminal box according to claim 1 and 2, it is characterized in that described socket (31) has through hole (313) along its length, have one with the separated next door of through hole (313) (314) at the middle part of through hole (313), described metal-cored (5) middle part has a convex shoulder (51), under metal-cored (5) plugged state on the spacing next door (314), described convex shoulder (51) rear end face and upper surface, next door (314) contacted.

4, terminal box according to claim 1 and 2, it is characterized in that the connecting portion (315) that described socket (31) front end has and wire hole (211) matches, after described connecting portion (315) passes the sidewall of box body (1), and be locked by a nut (7) that is screwed onto the connecting portion periphery.

5, terminal box according to claim 3, the front end that it is characterized in that described plug (32) has the insertion section (322) that can insert through hole (313) and hollow, described metal connecting piece (6) promptly is plugged in the insertion section (322) of this hollow, under the state in plug (32) is inserted into socket (31), insertion section (322) on the plug (32) is inserted in the through hole (313), and the outer surface in this insertion section (322) also is arranged with seal washer (8).

6, terminal box according to claim 1, it is characterized in that described wiring units (2) includes positive pole and negative pole, have two wire holes (111) on the sidewall of described box body (1), described socket (31) and plug (32) also respectively are two, metal-cored (5) one ends in described one of them socket (31) enter in the box body (1) and link to each other with the positive pole of wiring units (2), and metal-cored (14) one ends in another socket (31) enter in the box body (1) and link to each other with the negative pole of wiring units (2).

7, according to claim 1 or 7 described terminal boxes, it is characterized in that described plug (32) rear end has connecting portion (323), external screw thread has been attacked in the outer face of connecting portion (323), be connected with an end cap (9) on this connecting portion (323), described lead (4) and metal connecting piece (6) enter in the socket (31) after passing end cap (9) again.

8, terminal box according to claim 1, it is characterized in that described metal connecting piece (6) has a central through hole (62), be plugged at plug (32) under the state of rear end of socket (31), metal-cored (5) in the socket (31) are inserted in the central through hole (61) of metal connecting piece (6) and with central through hole (61) inwall and contact.

9, terminal box according to claim 1, it is characterized in that described syndeton is that buckle connects, this buckle connects and comprises: have two Elastic buckles that extend forward in the both sides of socket (31) rear end, have two male part in the front end both sides of plug (32), on these two male part, respectively have one and block the hole clipping of joining mutually with Elastic buckle.