CN201797207U

CN201797207U - Cable connector for photovoltaic cell

Info

Publication number: CN201797207U
Application number: CN2010202391134U
Authority: CN
Inventors: 吕纪坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2011-04-13
Anticipated expiration: 2020-06-25

Abstract

The utility model discloses a cable connector for a photovoltaic cell, which comprises a positive plug and a negative plug which is connected with the positive plug in an inserting mode. The non-inserted ends of the positive plug and the negative plug are respectively connected with a seal screw nut in a threaded mode, a positive terminal connected with a photovoltaic cable is fastened in an inner hole of the positive plug, a negative terminal is fastened in an inner hole of the negative plug and is electrically connected with the positive terminal, an elastic seal part capable of leading the photovoltaic cable to penetrate through is arranged in each inner cavities of each of the seal screw nuts, and the elastic seal part contracts radially so as to be tightly wrapped the penetrated photovoltaic cable during the process that the seal screw nuts are screwed up on the positive plug and the negative plug. The cable connector for a photovoltaic cell resolves the problems that existing cable connectors have large contact resistance, relatively low electrical conductivity, unsatisfactory seal performance, inconvenience in installation and detachment and less comfort in touching during operations.

Description

The photovoltaic cell wire and cable connector

Technical field

The utility model relates to the photovoltaic cell component technical field, especially a kind of photovoltaic cell wire and cable connector.

Background technology

At present, the used wire and cable connector of using always on the market of solar power system, its inner splicing ear is generally stamping parts, circularity is not too high, need to increase the drum spring and could satisfy instructions for use, increased the conduction link in this no shadow, improved contact resistance, reduced conductance, when dismounting connector two ends, narrow and small as the space, hasp position that needs are pressed, pain is arranged during people's finger presses, existing simultaneously connector two ends finger is hard and smooth surface by the position corner angle of pinching, people can not feel like oneself and skid easily in the time of firmly, correspondingly increased operating personnel's work difficulty, also exist many irrational places and be used for the sealed at both ends sealing nut of connector, what at first be that seal adopts is the cylinder of annular, behind the nut screwing clamping, still have bigger gap between cable and the seal, leave the into hidden danger of water humidity, on the other hand, the tightener that sealing nut inside is used for cable is vertical long-armed, and structure is comparatively hard, after its head tightens up, its end still leaves bigger gap, be difficult to make annular seal to reach desirable sealing effectiveness, also unusual difficulty and painstaking during operating personnel's fastening nut, and anti-skidding line is only arranged on the outer peripheral face of nut, do not have and to be unfavorable for the outdoor study use for fastening of tool holding.

The utility model content

The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, provide that a kind of contact resistance is little, conductance is high, favorable sealing property, installation and removal are convenient and operating handle is comfortable photovoltaic cell cable connecting device.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of photovoltaic cell wire and cable connector, comprise anode plug with its to inserting the cathode plug be connected, anode plug and cathode plug non-to the spigot sealing nut that has been threaded respectively, the positive terminal that connects the photovoltaic cable is fastened in the endoporus of anode plug, negative terminal is fastened in the endoporus of cathode plug and with positive terminal and electrically connects, be provided with the elastic sealing element that can wear the photovoltaic cable in the inner chamber of sealing nut, be tightened in the process of anode plug and cathode plug elastic sealing element radial contraction and packing tightly on the photovoltaic cable that wore respectively at sealing nut.

For realizing the reliable grafting of positive and negative electrode plug, described anode plug front end has the grafting cylinder, be positioned at grafting cylinder rear portion on the anode plug and be symmetrical arranged flexible arm with respect to grafting cylindrical center, the endoporus leading section of cathode plug is can be for the grafting endoporus of grafting cylinder insertion, and the front end of cathode plug has the overlap joint hole that snaps in for elasticity arm elasticity.

Further, for guaranteeing the sealing after the positive and negative electrode plug is pegged graft, between grafting cylinder rear portion, elasticity arm, offer the rectangular recess of ring-type on the described anode plug, be provided with sealing ring in the rectangular recess, after anode plug and cathode plug butt joint, the inwall of grafting endoporus leading section compresses sealing ring.

For the connection that realizes the positive and negative electrode terminal reliable, the front end of described positive terminal has the elasticity endoporus, the negative terminal front end has the guiding sphere, negative terminal by the guiding guiding of sphere clamping go into the electric connection that realizes in the elasticity endoporus of positive terminal between the two.

For guaranteeing to have good sealing property after the photovoltaic cable connects, be provided with tightening ring between the interior cavity wall of described sealing nut and the elastic sealing element, the tightening ring ring set is on the outer surface of elastic sealing element, the inner chamber of sealing nut has cone segments, tightening ring one end has the outstanding sloping platform that matches with described cone segments, be tightened in the process of anode plug and cathode plug at sealing nut, the outstanding sloping platform of the inclined-plane of described conical section compressing tightening ring makes tightening ring produce radial contraction and the leading section of elastic sealing element is pressed on the photovoltaic cable that wore.

For guaranteeing that the positive and negative electrode plug is connected the back good seal with sealing nut, the rear end of described anode plug and cathode plug has seal groove respectively, the rearward end of elastic sealing element has the sealing round platform, be tightened in the process of anode plug and cathode plug at sealing nut, the sealing round platform of elastic sealing element is pressed in the seal groove.

For guaranteeing positive terminal and negative terminal accurate positioning in anode plug and cathode plug endoporus, the endoporus rearward end of described anode plug and cathode plug has inner groovy respectively, is provided with the spacing ring that is used to block positive terminal and negative terminal rearward end in the described inner groovy.

For easy to operate comfortable, the curved non slip surface that convenient finger is affectedly bashful when having mounting or dismounting on the outer surface of described anode plug and cathode plug respectively, place, nearly overlap joint hole has the line shape inclined-plane of being convenient to put forth effort on the outer surface of cathode plug when elasticity arm elasticity snaps in or withdraw from the overlap joint hole, manually tighten or sealing nut is tightened in the tool using clamping for convenient, on the outer surface of described sealing nut circumferentially five equilibrium be provided with the interior concave plane of at least 4 finger-like.

The beneficial effects of the utility model are: the utility model conductance height, bonding strength is good, it is convenient to dismantle, reliable operation, the face of cylinder that is connected between the conductor contacts, improved contact area, between terminal and the terminal, it is big to be connected compressing power between terminal and the cable, reduced contact resistance on the one hand, also improved connection reliability on the other hand, bodily fuctions's structural design is adopted in the mounting or dismounting of anode plug and cathode plug, thereby installation effectiveness and operation level of comfort have been improved, to the sealing of cable is radial contraction by elastic sealing element, elastic sealing element is packed tightly on the photovoltaic cable that wore, reached preferable sealing effectiveness, be affectedly bashful the clamping when making things convenient for tool using again when manual operations both had been convenient in the concave plane in the finger-like of sealing nut outer surface.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the cutaway view of A-A among Fig. 1

Concave plane 4. positive terminals, 41. elasticity endoporus, 5. negative terminals, 51. guiding spheres, 6. elastic sealing elements, 61. sealing round platforms, 7. sealing rings, 8. tightening rings, 81. outstanding sloping platform 9. spacing rings in 23. line shape inclined-planes, 1. anode plug 11. grafting cylinders, 12. elasticity arm 13. rectangular recess, 14. seal groove 15. inner groovies, 16. curved non slip surface 2. cathode plug 21. grafting endoporus, 22. overlap joint holes, 3. sealing nuts, 31. cone segments 32. among the figure

Embodiment.

In conjunction with the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.

As Fig. 1, a kind of photovoltaic cell wire and cable connector shown in Figure 2, comprise anode plug 1 with its to inserting the cathode plug 2 be connected, anode plug 1 and cathode plug 2 non-to the spigot sealing nut 3 that has been threaded respectively, anode plug 1 front end has grafting cylinder 11, be positioned at grafting cylinder 11 rear portions on the anode plug 1 and be symmetrically arranged with two elasticity arms 12 up and down with respect to grafting cylinder 11 centers, cathode plug 2 has grafting endoporus 21, the front end of cathode plug 2 has the overlap joint hole 22 that snaps in for elasticity arm 12 elasticity, the grafting cylinder 11 of anode plug 1 is inserted in the grafting endoporus 21 of cathode plug 2, elasticity arm 12 elasticity of anode plug 1 snap in the overlap joint hole 22 of cathode plug 2 and realize that anode plug 1 docks with cathode plug 2, the positive terminal 4 and the negative terminal 5 that connect the photovoltaic cable all adopt the good brass spare of electric conductivity to process through turning, positive terminal 4 is fastened in the endoporus of anode plug 1, negative terminal 5 is fastened in the endoporus of cathode plug 2 and with positive terminal 4 and electrically connects, the front end of positive terminal 4 has elasticity endoporus 41, circumferentially have four notches on the outer wall of this elasticity endoporus 41, the front portion of notch is carried out dwindling on the diametric(al) and is handled and formed the anchor ring that tightens up, the outer wall of negative terminal 5 so that fit better, negative terminal 5 front ends have guiding sphere 51, after negative terminal 5 inserted from the rear end of cathode plug 2, the electric connection that realizes in the elasticity endoporus 41 of positive terminal 4 was between the two gone in clamping by guiding sphere 51 guiding.

Be provided with the elastic sealing element 6 that can wear the photovoltaic cable in the inner chamber of sealing nut 3, be provided with tightening ring 8 between the interior cavity wall of sealing nut 3 and the elastic sealing element 6, tightening ring 8 ring sets are on the outer surface of elastic sealing element 6, elastic sealing element 6 is made by rubber, it has the endoporus that passes the photovoltaic cable, this endoporus has certain tapering, photovoltaic cable perforating position aperture is bigger, then slowly dwindle, until packing tightly the photovoltaic cable, the outer wall of rubber seal 6 is the face of cylinder with constant slope, match with the inwall of tightening ring 8, the inner chamber of sealing nut 3 has cone segments 31, tightening ring 8 one ends have the outstanding sloping platform 81 that matches with described cone segments 31, should have circumferentially 12 uniform and oblique long-armed jaws by outstanding sloping platform 81 with respect to tightening ring 8 centers, the gap that has certain tilted direction between per two long-armed jaws, be tightened in the process of anode plug 1 and cathode plug 2 at sealing nut 3, long-armed jaw end is oppressed on the inclined-plane of the conical section 31 of sealing nut 3 inner chambers, make long-armed jaw produce radial contraction and fill gap between the long-armed jaw, shrink the annular fully equably leading section outer wall of oppressing elastic sealing element 6 of inner hole wall of the long-armed jaw of back formation, elastic sealing element 6 is pressed on the photovoltaic cable that wore, thus the sealing between realization elastic caoutchouc spare 6 and the photovoltaic cable.

The rear end of described anode plug 1 and cathode plug 2 has seal groove 14 respectively, the rearward end of elastic sealing element 6 has sealing round platform 61, be tightened in the process of anode plug 1 and cathode plug 2 at sealing nut 3, the sealing round platform 61 of elastic sealing element 6 is pressed in the seal groove 14, thereby realizes the sealing between elastic sealing element 6 and anode plug 1 and the cathode plug 2.

At grafting cylinder 11 rear portions of anode plug 1 and between two elasticity arms 12, offer the rectangular recess 13 of ring-type, be provided with sealing ring 7 in the rectangular recess 13, after anode plug 1 and cathode plug 2 butt joints, grafting endoporus 21 leading sections of cathode plug 2 compress sealing ring 7, thereby realize the sealing between anode plug 1 and the cathode plug 2.

For guaranteeing positive terminal 4 and negative terminal 5 accurate positioning in anode plug 1 and cathode plug 2 endoporus, the endoporus rearward end of described anode plug 1 and cathode plug 2 has inner groovy 15 respectively, be provided with the spacing ring 9 that is used to block positive terminal 4 and negative terminal 5 rearward end in the described inner groovy 15, by spacing ring 9 effects, positive terminal 4 and negative terminal 5 are clamped on respectively in the endoporus of anode plug 1 and cathode plug 2.

Energy and comfort in order to operate, the curved non slip surface 16 that convenient finger is affectedly bashful when having mounting or dismounting on the outer surface of described anode plug 1 and cathode plug 2 respectively, this position is according to people's the thumb and the comfortable curved surface of pushing of shaped design of forefinger, on this curved non slip surface 16, also increase simultaneously anti-skidding lines to improve friction, avoiding taking place when dismounting finger slides, also has the line shape inclined-plane of when elasticity arm 12 elasticity snap in or withdraw from overlap joint hole 22, being convenient to put forth effort 23 at nearly overlap joint 22 places, hole on the outer surface of cathode plug 2, when with thumb and forefinger dismounting connector, put forth effort on the line shape inclined-plane 23 of cathode plug 2 at the rear portion of the finger palm, the head at elasticity arm 12 is then puted forth effort in the front portion of the finger palm, at this moment, the head of elasticity arm 12 inwardly shrinks, until withdrawing from from overlap joint hole 22; And on the outer surface of sealing nut 3 bodies circumferentially five equilibrium be provided with the interior concave plane 32 of at least 4 finger-like, should in concave plane 32 be convenient on the one hand manual tighten or when unclamping sealing nut 3 grabbing of finger pinch, also convenient wrench snaps in and realizes tightening or unclamping of sealing nut 3 on the other hand.

The utility model conductance height, bonding strength is good, it is convenient to dismantle, reliable operation, the face of cylinder that is connected between the conductor contacts, improved contact area, between terminal and the terminal, it is big to be connected compressing power between terminal and the cable, reduced contact resistance on the one hand, also improved connection reliability on the other hand, anode plug 1 adopts bodily fuctions's structural design with the installation position and the dismounting of cathode plug 2, thereby installation effectiveness and level of comfort have been improved, and between elastic sealing element 6 and the photovoltaic cable, favorable sealing property between elastic sealing element 6 and anode plug 1 and the cathode plug 2, installation and removal are convenient and swift.

Above-mentioned execution mode only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection range of the present utility model.

Claims

1. photovoltaic cell wire and cable connector, comprise anode plug (1) with its to inserting the cathode plug (2) be connected, it is characterized in that: anode plug (1) and cathode plug (2) non-the spigot sealing nut (3) that has been threaded respectively, the positive terminal (4) that connects the photovoltaic cable is fastened in the endoporus of anode plug (1), negative terminal (5) is fastened in the endoporus of cathode plug (2) and with positive terminal (4) and electrically connects, be provided with the elastic sealing element (6) that can wear the photovoltaic cable in the inner chamber of sealing nut (3), be tightened in the process of anode plug (1) and cathode plug (2) elastic sealing element (6) radial contraction and packing tightly on the photovoltaic cable that wore respectively at sealing nut (3).

2. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: described anode plug (1) front end has grafting cylinder (11), be positioned at grafting cylinder (11) rear portion on the anode plug (1) and be symmetrical arranged flexible arm (12) with respect to grafting cylinder (11) center, the endoporus leading section of cathode plug (2) is can be for the grafting endoporus (21) of grafting cylinder (11) insertion, and the front end of cathode plug (2) has the overlap joint hole (22) that snaps in for elasticity arm (12) elasticity.

3. photovoltaic cell wire and cable connector according to claim 2, it is characterized in that: be positioned at the rectangular recess (13) that offers ring-type between grafting cylinder (11) rear portion, the elasticity arm (12) on the described anode plug (1), be provided with sealing ring (7) in the rectangular recess (13), after anode plug (1) and cathode plug (2) butt joint, the inwall of grafting endoporus (21) leading section compresses sealing ring (7).

4. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: the front end of described positive terminal (4) has elasticity endoporus (41), negative terminal (5) front end has guiding sphere (51), and the middle electric connection that realizes between the two of the elasticity endoporus (41) of positive terminal (4) is gone in clamping to negative terminal (5) by the guiding of the sphere (51) that leads.

5. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: be provided with tightening ring (8) between the interior cavity wall of described sealing nut (3) and the elastic sealing element (6), tightening ring (8) ring set is on the outer surface of elastic sealing element (6), the inner chamber of sealing nut (3) has cone segments (31), tightening ring (8) one ends have the outstanding sloping platform (81) that matches with described cone segments (31), be tightened in the process of anode plug (1) and cathode plug (2) at sealing nut (3), the outstanding sloping platform (81) of the inclined-plane of described conical section (31) compressing tightening ring (8) makes tightening ring (8) produce radial contraction and the leading section of elastic sealing element (6) is pressed on the photovoltaic cable that wore.

6. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: the rear end of described anode plug (1) and cathode plug (2) has seal groove (14) respectively, the rearward end of elastic sealing element (6) has sealing round platform (61), be tightened in the process of anode plug (1) and cathode plug (2) at sealing nut (3), the sealing round platform (61) of elastic sealing element (6) is pressed in the seal groove (14).

7. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: the endoporus rearward end of described anode plug (1) and cathode plug (2) has inner groovy (15) respectively, is provided with the spacing ring (9) that is used to block positive terminal (4) and negative terminal (5) rearward end in the described inner groovy (15).

8. photovoltaic cell wire and cable connector according to claim 1, it is characterized in that: the curved non slip surface (16) that convenient finger is affectedly bashful when having mounting or dismounting on the outer surface of described anode plug (1) and cathode plug (2) respectively, nearly overlap joint hole (22) locates to have the line shape inclined-plane of being convenient to put forth effort (23) when elasticity arm (12) elasticity snaps in or withdraw from overlap joint hole (22) on the outer surface of cathode plug (2), and circumferential five equilibrium is provided with the interior concave plane (32) of at least 4 finger-like on the outer surface of described sealing nut (3).