CN202189807U

CN202189807U - Junction box

Info

Publication number: CN202189807U
Application number: CN 201120204632
Authority: CN
Inventors: 王勇; 陈孝群; 周春夫
Original assignee: Tyco Electronics Shanghai Co Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-04-11
Anticipated expiration: 2021-06-16
Also published as: TWM448058U; JP3177782U

Abstract

A junction box, which is electrically connected with a cable for transmitting weak electric signals, comprises at least one wiring component, wherein, each wiring component, which is electrically connected with an external cable, comprises an electronic device, a connection terminal and a connecting sheet; the connection terminal is electrically connected with the external cable to be led into the junction box; and the connecting sheet is connected between the electronic device and the connection terminal. Each wiring component further comprises a fixing device used for crimping the connecting sheet onto the corresponding connection terminal, so as to maintain the electric connection between the connecting sheet and the connection terminal. As the stable mechanical fixation is maintained between the connection terminal and the connecting sheet through the fixing device, the transmission stability and the transmission quality of the weak signals are improved.

Description

Terminal box

Technical field

The utility model relates to a kind of terminal box that is used for connection cable, in particular to a kind of terminal box that is used to connect the cable of solar photovoltaic assembly.

Background technology

In the electronic system of the little signal of telecommunication of transmission such as solar photovoltaic assembly, communications component, need little signal of telecommunication be transferred to through External cable in the electronic device that is arranged in the terminal box, with compile, processing such as forwarding.In terminal box, be provided be used for the splicing ear that is electrically connected with External cable and be connected splicing ear and electronic device between brace.

Fig. 1 shows the partial sectional view of a kind of embodiment of traditional terminal box 200.This terminal box 200 comprises: housing 201, so which is provided with the through hole that External cable 202 is introduced; Will with the External cable of introducing 202 splicing ear 203 that is electrically connected of the mode through welding for example; Be used for splicing ear 203 is fixed on the fixture 205 on the housing 201; And be connected the brace 204 between splicing ear 203 and the electronic device (not shown).Brace 204 is processed by the foil material of for example Copper Foil and so on, and adopts welding manner to be electrically connected with splicing ear 203.Because brace 204 is very thin, in the welding process of brace 204 and splicing ear 203, possibly have problem of faulty soldering, will cause the loose contact between the two like this, switch-on and-off.And the contact impedance between the two is very high, even can produce electric arc, has very big potential safety hazard.

The content of utility model

The utility model provides a kind of terminal box of being electrically connected of cable that is used for the transmission ultra-weak electronic signal, can keep the stable mechanical fixation between splicing ear and the brace through fixture, improves stability and signal transmission quality that small-signal is transmitted.

An aspect according to the utility model provides a kind of terminal box, comprises at least one connector assembly, and each connector assembly is used for being electrically connected with an External cable, and each connector assembly comprises: an electronic device; A splicing ear is electrically connected with the said External cable that will be introduced into said terminal box; A brace is connected between said electronic device and the said splicing ear; Wherein each said connector assembly further comprises: a fixture is crimped on said brace on the corresponding said splicing ear, to keep being electrically connected between said brace and the said splicing ear.

In above-mentioned terminal box; Said splicing ear process by sheet metal and comprise a main part and a link that is positioned at said main part one end, said brace be stacked on said link and a part of said main part and on said main part with the welding of said splicing ear.

In above-mentioned terminal box; Said fixture be from the said link longitudinal extension of said splicing ear and on bearing of trend back-flexing form; And the position that is bent at said splicing ear forms an opening, and said brace passes said opening.

In above-mentioned terminal box, said opening extends transverse to a side of said fixture.

In above-mentioned terminal box, said fixture is provided with the auxiliary holding device that is used for the said fixture of clamping.

In above-mentioned terminal box, said fixture be from least one sidepiece horizontal expansion of said link and on bearing of trend back-flexing form.

In above-mentioned terminal box, said fixture is a clamping device that is independent of said splicing ear.

In above-mentioned terminal box, said brace is stacked on two surfaces of said link through bending, and said clamping device inserts the terminal of said link in a longitudinal direction and is clamped on the part of the brace that is stacked in said link.

In above-mentioned terminal box, at least one said clamping device inserts at least one side of said link in a lateral direction and is clamped on the part of the brace that is stacked in said link.

In above-mentioned terminal box, said link and said main part approximate vertical.

In above-mentioned terminal box, the upper surface of said splicing ear is provided with a recessed groove to said External cable.

In above-mentioned terminal box, said brace is a sheet metal.

The foregoing description terminal box according to the utility model; Kept the stable mechanical fixation between splicing ear and the brace through fixture; Can keep between splicing ear and the brace and splicing ear is electrically connected with welded type between the external cable, improve the stability and the signal transmission quality of small-signal transmission.

Description of drawings

The present invention will come further explain with reference to accompanying drawing, wherein:

Fig. 1 is the partial sectional view of a kind of embodiment of traditional terminal box;

Fig. 2 is the schematic perspective view of terminal box of an embodiment of the utility model;

Fig. 3 is the part schematic perspective view that the terminal box among Fig. 2 is cut open along the A-A line;

Fig. 4 is the enlarged diagram of B part among Fig. 3;

Fig. 5 is the enlarged diagram of C part among Fig. 3;

Fig. 6 is the broken section schematic perspective view of terminal box of the another kind of embodiment of the utility model;

Fig. 7 is the enlarged diagram of D part among Fig. 6;

Fig. 8 is the partial sectional view of the said terminal box of Fig. 2;

Fig. 9-the 12nd, 4 kinds of embodiment of formation fixture on splicing ear.

Embodiment

Though will fully describe the utility model with reference to the accompanying drawing of the embodiment that contains the utility model, before this describes, should be appreciated that those of ordinary skill in the art can revise utility model described herein, obtains the technique effect of the utility model simultaneously.Therefore, must understand above description to those of ordinary skill in the art and Yan Weiyi discloses widely, and its content does not lie in the described exemplary embodiment of restriction the utility model.

Referring to accompanying drawing 2-3, wherein Fig. 2 is the schematic perspective view that shows according to the terminal box 100 of an embodiment of the utility model, and Fig. 3 is the part schematic perspective view that the terminal box 100 among Fig. 2 is cut open along the A-A line.Terminal box 100 according to an embodiment of the utility model is used for the external cable 10 that perhaps transmits the electronic system of little signal of telecommunication such as the generation with solar photovoltaic assembly, communications component is electrically connected to the electronic device (not shown) in the terminal box 100, and this electronic device ultra-weak electronic signal that transmission comes to the external connection cable is handled or transmission further.Terminal box 100 according to a kind of exemplary embodiment of the utility model comprises at least one connector assembly, and each connector assembly is used for being electrically connected with an External cable (10) and comprising: an electronic device; A splicing ear 2 is electrically connected with the External cable that will be introduced into terminal box 100 10; A brace 3 is connected between said electronic device and the splicing ear 2; And a fixture 4, with brace 3 by being pressed on the splicing ear 2, to keep stable being electrically connected between brace 3 and the splicing ear 2.

In a further embodiment; Splicing ear 2 is processed by the for example sheet metal of copper, copper alloy and so on; And comprise a main part 21 and a link 22 that is positioned at main part 21 1 ends; Brace 3 is stacked on link 22 and a part of main part 21 and on main part 21, welds with splicing ear 2, thereby brace 3 is electrically connected with splicing ear 2, and brace 3 is processed by the sheet metal of for example Copper Foil and so on.The other end of main part 21 is fixed on the bottom of the housing 1 of terminal box 100 through the fixture 5 of for example bolt, fixed leg and so on.

A kind of embodiment according to the utility model; Referring to Fig. 4; Fixture 4 be from link 22 longitudinal extensions of splicing ear 2 and on bearing of trend back-flexing form; Be that fixture 4 is integrally formed with splicing ear 2, and form an opening 41 (referring to Fig. 9 and 10) at a position that is bent of splicing ear 2, brace 3 passes opening 41 and is stacked on link 22 and a part of main part 21.In the embodiment of Fig. 9, opening 41 is formed on the roughly middle part of fixture 4, and in another kind of embodiment shown in Figure 10, opening 41 ' extends transverse to a side of fixture 4.In order to increase stability of structure, referring to Fig. 4 and 8, link of splicing ear 2 22 and main part 21 approximate vertical, and make on its two facing surfaces that are stacked in link 22 through crooked brace 3.

Referring to Fig. 9 and 10; Processing this according to the splicing ear of an embodiment of the utility model 2 during with fixture 4; At first form sheet metal with predetermined roughly rectangular shape; On sheet metal, for example form opening 41 or 41 ', at about 90 degree of first bend, 23 bent sheet metal, to form main part 21 and connecting portion 22 through shearing; Again with opening 41 or crooked connecting portions 22 about 180 degree of 41 ' corresponding second bend 42, thereby form the fixture 4 of the utility model as shown in Figure 4.Preferably, the end 43 of fixture is reserved predetermined gap with connecting portion, so that brace 3 is stacked on connecting portion 22 and the main part 21 through opening 41 or 41 '.And; After brace 3 on will being stacked in main part 21 is connected on the main part 21 through welding manner; Utilize the clamping device of pliers and so on, end 43 is pressed on the brace 3, thereby realize that brace 3 is electrically connected and further mechanical fixation with welded type between the splicing ear 2.Through the stable mechanical fixation between fixture 4 maintenance splicing ears 2 and the brace 3; Can keep between splicing ear 2 and the brace 3 and splicing ear 2 is electrically connected with welded type between the external cable 10; Reduce the probability of rosin joint, improved the stability and the signal transmission quality of small-signal transmission.

Referring to Figure 11, in another kind of embodiment, fixture 4 ' be is from two sidepiece horizontal expansions of link 22 and back-flexing forms on bearing of trend.Referring to Figure 12, in a further embodiment, fixture 4 " be from sidepiece horizontal expansion of link 22 and on bearing of trend back-flexing form.

Described above through longitudinally or horizontal direction extend the go forward side by side embodiment of line bend integrally formed fixture on splicing ear 2 of connecting portion 21.But the utility model is not limited thereto.Referring to Fig. 3 and 4, fixture is an independently clamping device 45.Further, brace 3 is stacked on two surfaces of link 22 through bending, and clamping device 45 inserts the terminal of link 22 in a longitudinal direction and is clamped on the part of the brace 3 that is stacked in link 22.In a kind of interchangeable embodiment, at least one independently clamping device 45 insert at least one side of link 22 in a lateral direction and be clamped on the part of the brace 3 that is stacked in link 22.Like this, equally also can brace 3 stably be remained on the connecting portion 22 of splicing ear 2.

In a further embodiment, referring to 6 and 7, on the basis that is provided with fixture as shown in Figure 44, on fixture 4, be provided with the auxiliary clamping device 45 that is used for clamping and fixing device 4 further.Like this, adopting the mode of double fixed is that brace 3 more stably is fixed on the splicing ear 2.

In the further embodiment of the utility model, the upper surface that is used for stacked brace 3 of splicing ear 2 is provided with a recessed groove 23 to External cable 10, can keep like this being electrically connected more reliably between splicing ear 2 and the external cable 10.Groove 23 has the size that is approximately 1 millimeters long, about 0.2 mm wide.

Described the main part 21 of splicing ear 2 and the embodiment of brace 22 approximate vertical above, but the utility model is not limited thereto.Those skilled in the art, according to actual needs, brace 22 also can roughly be in the same plane with main part 21, perhaps has other certain angle between the two.Though being shown among Fig. 2, the terminal box of the utility model comprises two connector assemblies that connect two external cables 10; But be appreciated that; The terminal box of the utility model can include only a connector assembly, also comprises being arranged to comprise 3 more a plurality of connector assemblies of setting.When two or more connector assemblies are set, be applied to fixture in each connector assembly and can be any in Fig. 4, the fixed form shown in 5 and 7.

It will be appreciated by those skilled in the art that; Above described embodiment all be exemplary; And those skilled in the art can make improvements; Can carry out independent assortment under the situation of the conflict of the structure described in the various embodiment aspect not recurring structure or principle, thereby on the basis of the technical problem that solves the utility model, realize more kinds of terminal boxes.

After the preferred embodiment that specifies the utility model; Those of ordinary skill in the art can clearly understand; Under protection range that does not break away from the claim of enclosing and spirit, can carry out various variations and change, and the utility model also is not subject to the execution mode of the exemplary embodiment of lifting in the specification.It should be noted that word " comprises " does not get rid of other element or step, and word " " or " one " do not get rid of a plurality of.In addition, any element numbers of claim should not be construed as the scope of restriction the utility model.

Claims

1. a terminal box comprises at least one connector assembly, and each connector assembly is used for being electrically connected with an External cable, and each connector assembly comprises:

An electronic device;

A splicing ear is electrically connected with the said External cable that will be introduced into said terminal box;

A brace is connected between said electronic device and the said splicing ear;

It is characterized in that each said connector assembly further comprises:

A fixture is crimped on said brace on the corresponding said splicing ear, to keep being electrically connected between said brace and the said splicing ear.

2. terminal box as claimed in claim 1; It is characterized in that; Said splicing ear process by sheet metal and comprise a main part and a link that is positioned at said main part one end, said brace be stacked on said link and a part of said main part and on said main part with the welding of said splicing ear.

3. terminal box as claimed in claim 2; It is characterized in that; Said fixture be from the said link longitudinal extension of said splicing ear and on bearing of trend back-flexing form; And the position that is bent at said splicing ear forms an opening, and said brace passes said opening.

4. terminal box as claimed in claim 3 is characterized in that, said opening extends transverse to a side of said fixture.

5. terminal box as claimed in claim 2 is characterized in that said fixture is provided with the auxiliary holding device that is used for the said fixture of clamping.

6. terminal box as claimed in claim 2 is characterized in that, said fixture be from least one sidepiece horizontal expansion of said link and on bearing of trend back-flexing form.

7. terminal box as claimed in claim 2 is characterized in that, said fixture is a clamping device that is independent of said splicing ear.

8. terminal box as claimed in claim 7; It is characterized in that; Said brace is stacked on two surfaces of said link through bending, and said clamping device inserts the terminal of said link in a longitudinal direction and is clamped on the part of the brace that is stacked in said link.

9. terminal box as claimed in claim 7 is characterized in that, at least one said clamping device inserts at least one side of said link in a lateral direction and is clamped on the part of the brace that is stacked in said link.

10. like each the described terminal box among the claim 2-9, it is characterized in that said link and said main part approximate vertical.

11. each the described terminal box as among the claim 2-9 is characterized in that, the upper surface of said splicing ear is provided with a recessed groove to said External cable.

12. each the described terminal box as among the claim 2-9 is characterized in that said brace is a sheet metal.