CN102709363B - Wire fixing assembly for solar junction box - Google Patents
Wire fixing assembly for solar junction box Download PDFInfo
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- CN102709363B CN102709363B CN201210174129.5A CN201210174129A CN102709363B CN 102709363 B CN102709363 B CN 102709363B CN 201210174129 A CN201210174129 A CN 201210174129A CN 102709363 B CN102709363 B CN 102709363B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a wire fixing assembly for a solar junction box, which comprises sealing rings, wire claws, nuts, cables and a base with screw thread joint pins. The rear ends of the cables sequentially pass through the corresponding nuts, the corresponding wire claws and the corresponding sealing rings from front to back, then pass through the corresponding screw thread joint pins and extend into the base; the nuts are screwed on the corresponding screw thread joint pins; each nut is formed by a ratchet part, a screw thread part and a retracting part which are sequentially connected from back to front; stop teeth arranged into one circle are arranged on the inner wall of the ratchet part of each nut; the rear positon of each screw thread joint pin, which is positioned at the front column section, is provided with a stop rib; both the stop ribs extend along the clockwise direction from the tangential directions of the outer circumferential surface of the corresponding screw thread joint pins; and the stop teeth on the nuts are parts matched with the stop ribs on the screw thread joint pins and ratchet self-locking mechanisms are formed by the stop teeth and the stop ribs together. The wire fixing assembly disclosed by the invention has a self-locking function; the nuts cannot be loosened after being screwed down and fixed, so that the wire fixing effect is better and the fault of the junction box, which is caused by the loosening of the cables, can be effectively avoided.
Description
Technical field
The present invention relates to a kind of parts for solar photovoltaic cell junction box.
Background technology
Solar power system comprises solar cell array, solar charging controller for electric consumption and storage battery (group), and solar cell array consists of solar module.Solar junction box is the connector between solar cell array and solar charging controller for electric consumption on the one hand, is that the electric power that solar battery group is produced is connected with the circuit of solar battery group outside on the other hand.Terminal box sticks together by the backboard of silica gel and solar module, bus-bar in solar module links together by the internal wiring in terminal box, internal wiring and External cable link together, thereby make solar module and External cable conducting.In terminal box, be provided with diode, assurance solar module can normally be worked when being in the light.
Solar junction box comprises 1 cable and 1 cable that is connected with negative pole connector that are connected with anodal connector, 2 cables stretch in the box body of solar junction box and are electrically connected to corresponding terminal, in order to make cable in use can not cause cable separated with terminal because of unexpected, cable must be fixed in terminal box, the common practice as Chinese patent literature CN202004021(application number is: 201120058790.0) disclose a kind of rear end of solar junction box cable from front to back successively through nut, solidus ring, the post that is threaded on sealing ring and Bottom of box body, stretch in base.Solidus ring is joined end to end and is formed by 3 solidus pieces that distribute ringwise, and solidus piece is provided with inclined-plane, and the follower head of the inner cylindrical housing of nut is the position that is provided with the truncated cone-shaped medial surface matching with inclined-plane on solidus piece.When fastening nut, the solidus piece that the position of the truncated cone-shaped medial surface of nut promotes solidus ring draws in to centre, thereby cable seal is fixed on base.Because nut screwing clamping also may be unscrewed later, make the mode of this attached cable stable not, may cause whole terminal box not use.
Summary of the invention
The object of this invention is to provide a kind of auto-lock function that has, the solidus assembly of the solar junction box that can not unclamp after nut screwing clamping is fixing.
The technical scheme that realizes the object of the invention is to provide a kind of solidus assembly of solar junction box, comprises sealing ring, line pawl, nut, cable and base; Base is provided with the post that is threaded, and on the anterior shell of column of the post that is threaded, has external screw thread, and the rear end of cable is passed nut, line pawl and sealing ring from front to back successively, then through being threaded post, stretches in base; Described nut consists of the ratchet portion, threaded portion and the portion of tightening up that connect successively from back to front; The post that is respectively threaded is provided with inner breach at the front end position of its anterior shell of column along interior Zhou Fangxiang; Sealing ring is enclosed within on cable, and line pawl is enclosed within on sealing ring, and the rear portion of sealing ring and line pawl is stretched in the inside breach of anterior shell of column of the post that is threaded accordingly; Nut is screwed on the anterior shell of column of the post that is threaded by its threaded portion, and the anterior outside of tightening up the corresponding site of portion and line pawl by it contacts; Screw from front to back the nut post that makes to be threaded accordingly and compress from outside to inside line pawl, line pawl is press seal circle from outside to inside, and sealing ring compresses corresponding cable from outside to inside, thereby cable seal is fixed on base; The inner chamber of the ratchet portion of nut is cylindrical, and the inwall of the ratchet portion of nut is provided with the locking tooth that is arranged in a circle; The described post that is threaded is provided with retaining muscle at the rear side position that is positioned at anterior shell of column; Retaining muscle is all stretched by the tangential direction of the outer circumference surface of the post that is threaded accordingly along clockwise direction; Locking tooth on nut is the parts that match with the retaining muscle being threaded on post, and both have formed ratchet self-locking mechanism jointly; The inwall of the threaded portion of nut is provided with columniform internal thread, and the external screw thread on the anterior shell of column of this internal thread and the post that is threaded matches.
On the above-mentioned post that is threaded, there are 2 retaining muscle, and with the setting that is centrosymmetric of 2 retaining muscle of 1 post that is threaded; 2 retaining muscle that are threaded on post to the distance d1 of the axis Y in the cross section of the post that is threaded and d2 not etc., the absolute value of the difference of d1 and d2 be less than or equal to two the adjacent locking tooths on nut crown distance s 1/2.
The quantity of the locking tooth of the ratchet portion of above-mentioned nut is 25 to 45.
The crown of the locking tooth of the ratchet portion of above-mentioned nut is 75 to 120 degree angles, and the minimum angle α of the inner peripheral surface of locking tooth and ratchet portion is 15 degree to 35 degree.
The inside diameter D of the ratchet portion of above-mentioned nut is 10mm to 25mm.
Above-mentioned line pawl is comprised of annular slab and 3 to 8 solidus pieces of annulus cylindricality, the surface of internal cavity of the portion of tightening up of nut is totally rear large front little spherical zone face, each solidus piece is connected to annular slab from the place ahead around the corresponding site of the circumference of annular slab successively by afterbody separately, each solidus piece belongs to a part for an imaginary cylindrical shell, the circumferential both sides of each solidus piece all equate with respect to the angle of the central axis of line pawl, and the interval making progress in week between adjacent solidus piece also all equates with respect to the corresponding radian of central axis of line pawl, and each solidus piece is because the difference of radial thickness is divided into 2 sections of front and back, the radially inner side face of the back segment of each solidus piece and the radially inner side face of annular slab are positioned on same columniform side, the radial thickness of the back segment of each solidus piece is 1.5 to 2.5 times of radial thickness of annular slab, the internal diameter of the leading portion of each solidus piece is less than the internal diameter of back segment, and the internal diameter of described leading portion is greater than 1.5 to 2.5 millimeters of the internal diameters of sealing ring, the radial outer side of the leading portion of each solidus piece belongs to a part for an imaginary rear large front little frustum cone side, the diameter to the corresponding site of the diameter of each point and the spherical zone face of nut along front and back of this frustum cone side is corresponding, the axial length sum of the back segment of the axial length of the annular slab of line pawl and solidus piece equates with the axial length of the sealing shroud of sealing ring, and the radial thickness sum of the back segment of the solidus piece of the radial thickness of the sealing shroud of sealing ring and line pawl is greater than 0.8 to 1.5 millimeter of the maximum radial wall thickness of the leading portion of solidus piece.
Above-mentioned sealing ring is rubber integral piece, by stop head and the sealing shroud that is connected to the annulus cylindricality stopping head from the place ahead that are positioned at the annulus cylindricality at rear portion, formed, the internal diameter that stops head is identical with the internal diameter of sealing shroud, 1.5 to 2.5 times of the radial thickness that the radial thickness stopping is sealing shroud; Stop that the internal diameter of head and the internal diameter of sealing shroud are also the internal diameter of sealing ring, the internal diameter of sealing ring is greater than 0.8 to 1.5 millimeter of the external diameter of cable.
The anterior shell of column of the above-mentioned post that is threaded is divided into the front shell of column that is positioned at front side and the rear shell of column that is positioned at rear side, the external diameter of described anterior shell of column is all identical, the internal diameter of the rear shell of column of described anterior shell of column is identical with the internal diameter at all the other positions of the post that is threaded, the internal diameter of the front shell of column of described anterior shell of column is greater than rear shell of column, and the radial thickness of the rear shell of column of described anterior shell of column is about 1.5 to 2.5 times of radial thickness of front shell of column, thereby form the inside breach of the anterior shell of column that is positioned at the post that is threaded, and the round table surface of the medial surface of the rear shell of column of described anterior shell of column for being increased gradually by backward front internal diameter, the internal diameter of the front end of the rear shell of column of described anterior shell of column is greater than 1.2 to 2.0 millimeters of the internal diameters of sealing ring, and the internal diameter of the rear end of the rear shell of column of anterior shell of column is identical with the internal diameter of sealing ring, sealing ring is stopped in a front shell of column of the anterior shell of column that stretches into the post that is threaded by it, also stretches in the inside breach of anterior shell of column, and stops that the rear surface of head contacts with the surface towards front side of the post that is threaded, the postmedian of each line pawl is enclosed within on sealing ring, also the radially inner side face while that is the radially inner side face of annular slab of line pawl and the back segment of each solidus piece of line pawl contacts with the radial outer side of the sealing shroud of sealing ring, and the leading flank of the annular slab of line pawl contacts with the trailing flank that stops head of sealing ring, the radially inner side face of front shell of column of post of being threaded contacts with the radial outer side of the radial outer side that stops head of sealing ring and the annular slab of line pawl simultaneously, nut is screwed on the external screw thread of the front shell of column of the post that is threaded by its threaded portion, and the corresponding site that nut also tightens up the radial outer side of the corresponding site of radially inner side face of portion and the leading portion of each solidus piece of line pawl by it contacts.
The present invention has positive effect:
(1) nut of the solidus assembly of solar junction box of the present invention is provided with locking tooth, and threaded connection place is provided with retaining muscle, and both have formed ratchet self-locking mechanism jointly, after nut screwing clamping, can not get loose, and makes fixing effect more.Adopt the solar junction box of this solidus assembly can effectively avoid the terminal box fault that gets loose and cause because of cable.
(2) in the solidus assembly of solar junction box of the present invention, the locking tooth on nut and the retaining muscle of threaded connection place all pass through optimal design, and fiting effect is good.Retaining muscle on same threaded connection place has 2, and 2 retaining muscle are not to the distance of the axis in the cross section of the post that is threaded etc., 2 retaining muscle are less than or equal to 1/2 o'clock of spacing of the crown of two the adjacent locking tooths on the nut of corresponding connector assembly to the absolute value of the range difference of the axis in the cross section of the post that is threaded, can solve the excessive problem in nut angle of revolution, nut turns over less angle can carry out self-locking.
(3) the line pawl in the solidus assembly of solar junction box of the present invention is comprised of annular slab and 3 to 8 solidus pieces of annular, when the surface of internal cavity of the portion of tightening up of nut is totally rear large front little spherical zone face fastening nut, each solidus piece that spherical zone face promotes line pawl draws in to centre, thereby cable seal is fixed on base, design ingenious, simple for structure, good fixing effect, and easy to use.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of the solidus assembly of solar junction box;
Fig. 2 is the solidus assembly of the solar junction box in Fig. 1 structural representation during from top view;
Fig. 3 is the A-A face cutaway view of the solidus assembly in Fig. 2;
Fig. 4 is the solidus assembly cutaway view at B place in Fig. 2.
The mark of above-mentioned accompanying drawing is as follows:
Base 1, the post 15 that is threaded, front shell of column 15a, rear shell of column 15b, retaining muscle 15-3, sealing ring 71, stops a 71-1, sealing shroud 71-2, line pawl 72, solidus piece 72-1, leading portion 72-1-1, lateral surface 72-1-1a, back segment 72-1-2, annular slab 72-2, nut 73, the 73-1 of ratchet portion, locking tooth 73-2, threaded portion 73-3, tightens up the 73-4 of portion, spherical zone face 73-5, cable 8, connector 9, anodal connector 91, negative pole connector 92.
Embodiment
In the specific embodiment of the present invention, the description in orientation is carried out according to orientation shown in Fig. 1, wherein, a side at base 1 place is rear side, and a side at connector 9 places is front side, one side at positive connector 91 places is left side, and a side at negative connector 92 places is right side.
(embodiment 1)
See Fig. 1 and Fig. 2, the solidus assembly of the solar junction box of the present embodiment comprises sealing ring 71, line pawl 72, nut 73 and is located at the post 15 that is threaded on the base 1 of terminal box, on portion's shell of column of the post 15 that is threaded, has external screw thread.Line pawl 72 and nut 73 are integrated through injection molding part.Connector 9 adopts MC4 type connector, and connector 9 comprises the anodal connector 91 that belongs to left connector assembly and the negative pole connector 92 that belongs to right connector assembly.Cable 8 has 2, and 1 belongs to left connector assembly, and another 1 belongs to right connector assembly.
The rear end of the cable 8 of left connector assembly is passed nut 73, line pawl 72 and the sealing ring 71 of the solidus assembly 7 of left connector assembly from front to back successively, then is connected with anodal connector 91 through post 15 its front ends that are threaded.
The rear end of the cable 8 of right connector assembly is passed nut 73, line pawl 72 and the sealing ring 71 of the solidus assembly 7 of right connector assembly from front to back successively, then through being threaded post 15, its front end is connected with negative pole connector 92.
See Fig. 3 and Fig. 4, nut 73 consists of the 73-1 of ratchet portion, the threaded portion 73-3 and the portion 73-4 of tightening up that are connected successively from back to front.The inner chamber of the 73-1 of ratchet portion of nut 73 is cylindrical, its inside diameter D is 17.825mm, the inwall of the 73-1 of ratchet portion of nut 73 is provided with and is arranged in 40 locking tooth 73-2 that a circle is an angle of 90 degrees, and the minimum angle α of the inner peripheral surface of each locking tooth 73-2 and the 73-1 of ratchet portion is 25 degree.The post 15 that is threaded is provided with 2 retaining muscle 15-3 at the rear side position that is positioned at front end.2 retaining muscle 15-3 are all stretched by the tangential direction of the outer circumference surface of the post 15 that is threaded accordingly along clockwise direction, and with 2 retaining muscle 15-3 of 1 post 15 that is threaded setting that is centrosymmetric.Locking tooth 73-2 on nut 73 is the parts that match with the retaining muscle 15-3 being threaded accordingly on post 15, and both have formed ratchet self-locking mechanism jointly.
See Fig. 3,2 retaining muscle 15-3 that are threaded on post 15 to the distance d1 of the axis Y in the cross section of the post 15 that is threaded and d2 not etc., the absolute value of the difference of d1 and d2 equal two the adjacent locking tooth 73-2 on nut 73 crown distance s 1/2.
The inwall of the threaded portion 73-3 of nut 73 is provided with columniform internal thread, and the external screw thread on the front end of this internal thread and the post 15 that is threaded matches.The surface of internal cavity of the 73-4 of the portion of tightening up of nut 73 is totally rear large front little spherical zone face 73-5.
Sealing ring 71 is rubber integral piece, by the sealing shroud 71-2 that stops a 71-1 and be connected to the annulus cylindricality stopping a 71-1 from the place ahead that is positioned at the annulus cylindricality (face that refers to take annular stretches the body obtaining as benchmark along central axial direction) at rear portion, formed, the internal diameter that stops a 71-1 is identical with the internal diameter of sealing shroud 71-2, and the radial thickness that stops a 71-1 is 1.5 to 2.5 times (the present embodiment is 2 times) of the radial thickness of sealing shroud 71-2.Stop that the internal diameter of a 71-1 and the internal diameter of sealing shroud 71-2 are also the internal diameter of sealing ring 71, the internal diameter of sealing ring 71 is greater than 0.8 to 1.5 millimeter of the external diameter (the present embodiment is 1 millimeter) of cable 8.
Line pawl 72 is comprised of annular slab 72-2 and 3 to 8 (the present embodiment is 8) solidus piece 72-1 of annulus cylindricality.8 solidus piece 72-1 are connected to annular slab 72-2 from the place ahead around the corresponding site of the circumference of annular slab 72-2 successively by afterbody separately, each solidus piece 72-1 belongs to a part for an imaginary cylindrical shell, the circumferential both sides of each solidus piece 72-1 all equate with respect to the angle of the central axis of line pawl 72, and the interval making progress in week between adjacent solidus piece 72-1 also all equates with respect to the corresponding radian of central axis of line pawl 72, and each solidus piece 72-1 is because the difference of radial thickness is divided into 2 sections of front and back, the radially inner side face of back segment 72-1-2 of each solidus piece 72-1 and the radially inner side face of annular slab 72-2 are positioned on same columniform side, the radial thickness of the back segment 72-1-2 of each solidus piece 72-1 is 1.5 to 2.5 times (the present embodiment is 2 times) of the radial thickness of annular slab 72-2, the internal diameter of the leading portion 72-1-1 of each solidus piece 72-1 is less than the internal diameter of back segment 72-1-2, and the internal diameter of described leading portion 72-1-1 is greater than 1.5 to 2.5 millimeters of the internal diameters (the present embodiment is 2 millimeters) of sealing ring 71.The radial outer side 72-1-1a of the leading portion 72-1-1 of each solidus piece 72-1 belongs to the imaginary rear part of little frustum cone side before large, and the diameter to the corresponding site of the diameter of each point and the spherical zone face 73-5 of nut 73 along front and back of this frustum cone side is corresponding.The axial length sum of the back segment 72-1-2 of the axial length of the annular slab 72-2 of line pawl 72 and solidus piece 72-1 equates with the axial length of the sealing shroud 71-2 of sealing ring 71, and the radial thickness sum of the back segment 72-1-2 of the solidus piece 72-1 of the radial thickness of the sealing shroud 71-2 of sealing ring 71 and line pawl 72 is greater than 0.8 to 1.5 millimeter of the maximum radial wall thickness (the present embodiment is 1 millimeter) of the leading portion 72-1-1 of solidus piece 72-1.
The anterior shell of column of post 15 of being threaded is divided into the front shell of column 15a that is positioned at front side and the rear shell of column 15b that is positioned at rear side, the external diameter of described anterior shell of column is all identical, the internal diameter of the rear shell of column 15b of described anterior shell of column is identical with the internal diameter at all the other positions of the post 15 that is threaded, the internal diameter of the front shell of column 15a of described anterior shell of column is greater than rear shell of column 15b, and the radial thickness of the rear shell of column 15b of described anterior shell of column is about 1.5 to 2.5 times (the present embodiment is 2 times) of the radial thickness of front shell of column 15a, thereby form the inside breach of the anterior shell of column that is positioned at the post 15 that is threaded, and the round table surface of the medial surface of the rear shell of column 15b of described anterior shell of column for being increased gradually by backward front internal diameter.The internal diameter of the front end of the rear shell of column 15b of described anterior shell of column is greater than 1.2 to 2.0 millimeters of the internal diameters (the present embodiment is 1.6 millimeters) of sealing ring 71, and the internal diameter of the rear end of the rear shell of column 15b of anterior shell of column is identical with the internal diameter of sealing ring 71.
The rear end of cable 8 is from front to back successively through nut 73, line pawl 72 and the sealing ring 71 of solidus assembly, then through being threaded after post 15-1 of base 1, stretches in base 1.In above-mentioned connection, sealing ring 71 stops that by it 71-1 stretches in the front shell of column 15a of anterior shell of column of the post 15 that is threaded, also stretch in the inside breach of anterior shell of column, and stop that the rear surface of a 71-1 contacts with the surface towards front side of the post 15 that is threaded; The postmedian of each line pawl 72 is enclosed within on sealing ring 71, also the radially inner side face that is the radially inner side face of annular slab 72-2 of line pawl 72 and the back segment 72-1-2 of each solidus piece 72-1 of line pawl 72 contacts with the radial outer side of the sealing shroud 71-2 of sealing ring 71 simultaneously, and the leading flank of the annular slab 72-2 of line pawl 72 and the trailing flank that stops a 71-1 of sealing ring 71 contact; The radially inner side face of front shell of column 15a of post 15 of being threaded contacts with the radial outer side of the radial outer side that stops a 71-1 of sealing ring 71 and the annular slab 72-2 of line pawl 72 simultaneously; Nut 73 is screwed on the external screw thread of the front shell of column of the post 15 that is threaded by its threaded portion 73-3, and the corresponding site that nut 73 also tightens up the radial outer side 72-1-1a of the corresponding site of radially inner side face of the 73-4 of portion and the leading portion 72-1-1 of each solidus piece 72-1 of line pawl 72 by it contacts.
When fastening nut 73, each solidus piece 72-1 that the spherical zone face 73-5 of the 73-4 of the portion of tightening up of nut 73 promotes line pawl 72 draws in to centre and from outside to inside each solidus piece 72-1 of line pawl 72 is compressed, again by each solidus piece 72-1 of line pawl 72 press seal circle 71 from outside to inside, and then sealing ring 71 compresses cable 8 again, thereby cable 8 sealings are fixed on base 1.
Claims (7)
1. a solidus assembly for solar junction box, comprises sealing ring (71), line pawl (72), nut (73), cable (8) and base (1); Base (1) is provided with the post that is threaded (15), be threaded on the anterior shell of column of post (15) and have external screw thread, the rear end of cable (8) is passed nut (73), line pawl (72) and sealing ring (71) from front to back successively, then through being threaded post (15), stretches in base (1); It is characterized in that: nut (73) is by the ratchet portion (73-1) connecting successively from back to front, threaded portion (73-3) and tighten up portion (73-4) formation; The post (15) that is threaded is provided with inner breach at the front end position of its anterior shell of column along interior Zhou Fangxiang; It is upper that sealing ring (71) is enclosed within cable (8), and it is upper that line pawl (72) is enclosed within sealing ring (71), and the rear portion of sealing ring (71) and line pawl (72) is stretched in the inside breach of anterior shell of column of the post (15) that is threaded accordingly; Nut (73) is screwed on the anterior shell of column of the post that is threaded (15) by its threaded portion (73-3), and the anterior outside of tightening up the corresponding site of portion (73-4) and line pawl (72) by it contacts; Screw from front to back nut (73) post (15) that makes to be threaded accordingly and compress from outside to inside line pawl (72), line pawl (72) is press seal circle (71) from outside to inside, sealing ring (71) compresses corresponding cable (8) from outside to inside, thereby cable (8) sealing is fixed on base (1); The inner chamber of the ratchet portion (73-1) of nut (73) is cylindrical, and the inwall of the ratchet portion (73-1) of nut (73) is provided with the locking tooth (73-2) that is arranged in a circle; The described post that is threaded (15) is provided with retaining muscle (15-3) at the rear side position that is positioned at anterior shell of column; Retaining muscle (15-3) is all stretched by the tangential direction of the outer circumference surface of the post that is threaded accordingly (15) along clockwise direction; Locking tooth (73-2) on nut (73) is the parts that match with retaining muscle (15-3) on the post that is threaded (15), and both have formed ratchet self-locking mechanism jointly; The inwall of the threaded portion (73-3) of nut (73) is provided with columniform internal thread, and the external screw thread on the anterior shell of column of this internal thread and the post that is threaded (15) matches; On the described post that is threaded (15), there are 2 retaining muscle (15-3), and with the setting that is centrosymmetric of 2 retaining muscle (15-3) of 1 post that is threaded (15); The 2 retaining muscle (15-3) that are threaded on post (15) to the distance d1 of the axis Y in the cross section of the post that is threaded (15) and d2 not etc., the absolute value of the difference of d1 and d2 be less than or equal to adjacent two locking tooths (73-2) on nut (73) crown distance s 1/2.
2. according to the solidus assembly of solar junction box claimed in claim 1, it is characterized in that: the quantity of the locking tooth (73-2) of the ratchet portion (73-1) of described nut (73) is 25 to 45.
3. according to the solidus assembly of solar junction box claimed in claim 2, it is characterized in that: the crown of the locking tooth (73-2) of the ratchet portion (73-1) of described nut (73) is 75 to 120 degree angles, locking tooth (73-2) is 15 degree to 35 degree with the minimum angle α of the inner peripheral surface of ratchet portion (73-1).
4. according to the solidus assembly of solar junction box claimed in claim 2, it is characterized in that: the inside diameter D of the ratchet portion (73-1) of described nut (73) is 10mm to 25mm.
5. according to the solidus assembly of the solar junction box one of claim 1 to 4 Suo Shu, it is characterized in that: described line pawl (72) is comprised of annular slab (72-2) and 3 to 8 solidus pieces (72-1) of annulus cylindricality, the surface of internal cavity of the portion of tightening up (73-4) of nut (73) is totally rear large front little spherical zone face (73-5), each solidus piece (72-1) is connected to annular slab (72-2) from the place ahead around the corresponding site of the circumference of annular slab (72-2) successively by afterbody separately, each solidus piece (72-1) belongs to a part for an imaginary cylindrical shell, the circumferential both sides of each solidus piece (72-1) all equate with respect to the angle of the central axis of line pawl (72), and the interval making progress in week between adjacent solidus piece (72-1) also all equates with respect to the corresponding radian of central axis of line pawl (72), and each solidus piece (72-1) is because the difference of radial thickness is divided into 2 sections of front and back, the radially inner side face of the back segment (72-1-2) of each solidus piece (72-1) and the radially inner side face of annular slab (72-2) are positioned on same columniform side, the radial thickness of the back segment (72-1-2) of each solidus piece (72-1) is 1.5 to 2.5 times of radial thickness of annular slab (72-2), the internal diameter of the leading portion (72-1-1) of each solidus piece (72-1) is less than the internal diameter of back segment (72-1-2), and the internal diameter of described leading portion (72-1-1) is greater than 1.5 to 2.5 millimeters of the internal diameters of sealing ring (71), the radial outer side (72-1-1a) of the leading portion (72-1-1) of each solidus piece (72-1) belongs to a part for an imaginary rear large front little frustum cone side, the diameter to the corresponding site of the diameter of each point and the spherical zone face (73-5) of nut (73) along front and back of this frustum cone side is corresponding, the axial length sum of the axial length of the annular slab (72-2) of line pawl (72) and the back segment (72-1-2) of solidus piece (72-1) equates with the axial length of the sealing shroud (71-2) of sealing ring (71), and the radial thickness sum of the back segment (72-1-2) of the radial thickness of the sealing shroud (71-2) of sealing ring (71) and the solidus piece (72-1) of line pawl (72) is greater than 0.8 to 1.5 millimeter of the maximum radial wall thickness of the leading portion (72-1-1) of solidus piece (72-1).
6. according to the solidus assembly of solar junction box claimed in claim 5, it is characterized in that: sealing ring (71) is rubber integral piece, by the stopping head (71-1) and be connected to from the place ahead and stop that the sealing shroud (71-2) of the annulus cylindricality of head (71-1) forms of annulus cylindricality that is positioned at rear portion, the internal diameter that stops head (71-1) is identical with the internal diameter of sealing shroud (71-2), and a radial thickness that stops (71-1) is 1.5 to 2.5 times of radial thickness of sealing shroud (71-2); Stop that the head internal diameter of (71-1) and the internal diameter of sealing shroud (71-2) are also the internal diameter of sealing ring (71), the internal diameter of sealing ring (71) is greater than 0.8 to 1.5 millimeter of the external diameter of cable (8).
7. according to the solidus assembly of solar junction box claimed in claim 6, it is characterized in that: the anterior shell of column of the post that is threaded (15) is divided into the front shell of column (15a) that is positioned at front side and the rear shell of column (15b) that is positioned at rear side, the external diameter of described anterior shell of column is all identical, the internal diameter of the rear shell of column (15b) of described anterior shell of column is identical with the internal diameter at all the other positions of the post that is threaded (15), the internal diameter of the front shell of column (15a) of described anterior shell of column is greater than rear shell of column (15b), and the radial thickness of the rear shell of column (15b) of described anterior shell of column is 1.5 to 2.5 times of radial thickness of front shell of column (15a), thereby form the inside breach of the anterior shell of column that is positioned at the post that is threaded (15), and the round table surface of the medial surface of the rear shell of column (15b) of described anterior shell of column for being increased gradually by backward front internal diameter, the internal diameter of the front end of the rear shell of column (15b) of described anterior shell of column is greater than 1.2 to 2.0 millimeters of the internal diameters of sealing ring (71), and the internal diameter of the rear end of the rear shell of column (15b) of anterior shell of column is identical with the internal diameter of sealing ring (71), sealing ring (71) stops that by it head (71-1) stretches in the front shell of column (15a) of anterior shell of column of the post that is threaded (15), also stretch in the inside breach of anterior shell of column, and stop that the rear surface of head (71-1) contacts with the surface towards front side of the post that is threaded (15), the postmedian of each line pawl (72) is enclosed within on sealing ring (71), also the radially inner side face while that is the radially inner side face of annular slab (72-2) of line pawl (72) and the back segment (72-1-2) of each solidus piece (72-1) of line pawl (72) contacts with the radial outer side of the sealing shroud (71-2) of sealing ring (71), and the leading flank of the annular slab (72-2) of line pawl (72) contacts with the trailing flank that stops head (71-1) of sealing ring (71), the radially inner side face of front shell of column (15a) of post (15) of being threaded contacts with the radial outer side that stops the head radial outer side of (71-1) and the annular slab (72-2) of line pawl (72) of sealing ring (71) simultaneously, nut (73) is screwed on the external screw thread of the front shell of column of the post that is threaded (15) by its threaded portion (73-3), and the corresponding site that nut (73) also tightens up the radial outer side (72-1-1a) of the corresponding site of radially inner side face of portion (73-4) and the leading portion (72-1-1) of each solidus piece (72-1) of line pawl (72) by it contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174129.5A CN102709363B (en) | 2012-05-30 | 2012-05-30 | Wire fixing assembly for solar junction box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174129.5A CN102709363B (en) | 2012-05-30 | 2012-05-30 | Wire fixing assembly for solar junction box |
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| Publication Number | Publication Date |
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| CN102709363A CN102709363A (en) | 2012-10-03 |
| CN102709363B true CN102709363B (en) | 2014-11-05 |
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| CN201210174129.5A Expired - Fee Related CN102709363B (en) | 2012-05-30 | 2012-05-30 | Wire fixing assembly for solar junction box |
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| CN110996574B (en) * | 2019-12-23 | 2020-09-29 | 上海海泰汽配有限公司 | Special protection box for Fourier infrared spectrometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324662A (en) * | 2011-06-13 | 2012-01-18 | 人和光伏科技有限公司 | Buckle connecting device |
| CN202695486U (en) * | 2012-05-30 | 2013-01-23 | 莱尼电气线缆（常州）有限公司 | Wire fixing assembly of solar energy junction box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWM392470U (en) * | 2010-06-22 | 2010-11-11 | Ks Terminals Inc | Water-proof junction box and water-proof connector assembly |
| KR100979994B1 (en) * | 2010-06-25 | 2010-09-06 | 주식회사 케이디파워 | Temperature detecting apparatus of solar cell module |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324662A (en) * | 2011-06-13 | 2012-01-18 | 人和光伏科技有限公司 | Buckle connecting device |
| CN202695486U (en) * | 2012-05-30 | 2013-01-23 | 莱尼电气线缆（常州）有限公司 | Wire fixing assembly of solar energy junction box |
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| CB02 | Change of applicant information |
Address after: 213022 No. 6 middle Yangtze Road, Xinbei District, Jiangsu, Changzhou Applicant after: Lenny electric wire & cable (China) Co., Ltd. Address before: 213022 No. 6 middle Yangtze Road, Xinbei District, Jiangsu, Changzhou Applicant before: Leoni Electronics Cable (Changzhou) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: RHYNI ELECTRIC WIRES AND CABLES (CHANGZHOU) CO., LTD. TO: LEONI CABLE (CHINA) CO., LTD. |
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