CN201766257U - Solar cell cable connector - Google Patents

Abstract

The utility model discloses a solar cell cable connector. The connector comprises a positive plug and a negative plug; the front end of the positive plug is provided with a splicing column with inner step holes; elastic arms which are symmetrically relative to the center of the splicing column are arranged at the rear part of the splicing column; the negative plug is provided with a splicing inner step hole; the front end of the negative plug is provided with lapping holes used for allowing the elastic arms to be blocked in; the positive plug is inserted into the splicing inner step hole through the splicing column; the elastic arms are elastically blocked in the lapping holes for being in abutting joint with the negative plug; positive terminals connected with a cable are blocked in the inner step holes of the splicing column; and negative terminals are inserted from the rear end of the negative plug for being connected with the positive terminals in a blockage manner and realizing the electrical connection. The connector has the advantages that the connection is convenient; the performance is stable and reliable after the connection; a user feels comfortable during the operation; the effective contact area of the positive terminals and the negative terminals is large; the resistivity is reduced; and the efficiency in electrical conduction is improved.

Description

Solar cell cable connector

technical field

The utility model relates to the technical field of solar battery components, in particular to a solar battery cable connector.

Background technique

At present, the cable connectors used in solar power generation systems commonly used in the market, the internal connection terminals are generally stamped parts, the roundness is not too high, and drum springs need to be added to meet the use requirements, which adds a conductive link without a shadow. The contact resistance is improved and the conductivity is reduced. When the two ends of the connector are disassembled, the space for the buckle that needs to be pressed is small, and the human finger feels pain when pressed. At the same time, the fingers at both ends of the connector are pinched. The edges and corners are hard and the surface is smooth, people will feel uncomfortable and easy to slip when exerting force, which increases the difficulty of the operator's work accordingly.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art, to provide a solar battery cable connector with small contact resistance, high conductivity, convenient connection, and comfortable operation, which can be convenient without borrowing special tools unplug.

The technical solution adopted by the utility model to solve the technical problem is: a solar battery cable connector, including a positive plug and a negative plug, the front end of the positive plug has a plug-in cylinder with a stepped inner hole, which is located at the rear of the plug-in cylinder and An elastic arm is arranged symmetrically with respect to the center of the insertion cylinder. The negative plug has a stepped inner hole for insertion. The front end of the negative plug has a lap hole for the elastic arm to snap into. In the inner hole, the elastic lap arm is elastically snapped into the lap hole to connect with the negative plug. The positive terminal of the connecting cable is clipped in the inner hole of the step of the insertion cylinder, and the negative terminal is inserted from the rear end of the negative plug to the positive terminal. Connect to realize electrical connection.

Furthermore, the front end of the positive terminal has an elastic inner hole, and the front end of the negative terminal has a guiding spherical surface, and the negative terminal is inserted into the elastic inner hole of the positive terminal through the guiding spherical surface to realize the electrical connection between the two.

In order to ensure a good seal after connection, the rear ends of the positive plug and the negative plug respectively have a threaded section for the connection of the sealing nut and a sealing groove for the seal to be embedded; A ring-shaped rectangular groove is opened between them, and a sealing ring is arranged in the rectangular groove. After the positive plug and the negative plug are butted, the front end of the insertion hole presses the sealing ring tightly.

In order to ensure that the positive terminal is firmly installed, the rear end of the inner hole of the step has an inner groove, and the front end has a limiting surface, and a limiting ring is arranged in the inner groove, and the limiting ring has an outward expansion slope and an internal expansion slope. The outer expansion slope is snapped into the inner groove, the inner expansion slope is pushed against the back end surface of the positive terminal rear end, and the front end surface of the positive terminal is pushed against the limit surface.

In order to ensure that the negative terminal is firmly installed, the rear end of the plug-in inner hole has an inner groove, and the middle part has a stop slope, and a limit ring is arranged in the inner groove, and the limit ring has an outer expansion slope and an inner expansion slope. The outer expansion slope is snapped into the inner groove, the inner expansion slope is pushed against the stepped end surface of the negative terminal rear end, and the limiting slope in the middle of the negative terminal is pushed against the stop slope.

For convenient and comfortable operation, the outer surfaces of the positive plug and the negative plug have curved anti-slip surfaces that are convenient for fingers to hold when disassembling, and the outer surface of the negative plug near the overlapping hole has elastic snap-in Or the striated inclined surface that is convenient for exerting force when exiting the lap hole.

The beneficial effects of the utility model are: the utility model has high conductivity, good connection strength, convenient disassembly, and reliable operation. The connection between the conductors is cylindrical surface contact, which improves the contact area. On the one hand, it reduces the contact resistance, and on the other hand, it also improves the connection reliability. The assembly and disassembly of the positive plug and the negative plug adopt the human body functional structure design, thereby improving the installation efficiency and comfort.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

Fig. 2 is a schematic diagram of the cross-sectional structure along A-A in Fig. 1 .

In the figure 1. Positive plug 11. Step inner hole 12. Plug-in cylinder 13. Elastic arm 14. Rectangular groove 15. Thread section 16. Sealing groove 17. Inner groove 18. Limiting surface 19. Curved non-slip surface 2. Negative plug 21. Inserting inner hole 22. Overlap hole 23. Stopping slope 24. Striped slope 3. Positive terminal 31. Elastic inner hole 32. Retraction end face 4. Negative terminal 41. Guide spherical surface 42. Steps End face 43. Limiting slope 5. Sealing ring 6. Limiting ring 61. Outward expansion slope 62. Internal expansion slope

Detailed ways.

The utility model is described further in conjunction with accompanying drawing now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the utility model in a schematic way, so they only show the configurations related to the utility model.

A solar battery cable connector as shown in Figure 1 and Figure 2, includes a positive plug 1 and a negative plug 2 docked with it. The front end of the positive plug 1 has a plugging cylinder 12 with a stepped inner hole 11, which is located The rear part of 12 is provided with two upper and lower elastic arms 13 symmetrically with respect to the center of the insertion cylinder 12. The negative plug 2 has a stepped inner hole 21 for insertion, and the front end of the negative plug 2 has a spring for elastic snap-in In the overlapping hole 22, insert the insertion cylinder 12 of the positive plug 1 into the insertion hole 21 of the negative plug 2, and then snap the elastic arm 13 of the positive plug 1 into the overlapping hole 22 of the negative plug 2. This realizes the docking of the positive plug 1 and the negative plug 2, the positive terminal 3 and the negative terminal 4 of the connecting cable are all made of brass parts with good conductivity and processed by turning, and the positive terminal 3 is inserted from the rear end of the positive plug 1. Locked in the stepped inner hole 11, the front end of the positive terminal 3 has an elastic inner hole 31, and the outer wall of the elastic inner hole 31 is provided with four notches in the circumferential direction, and the front part of the notches is reduced in the diameter direction. A tightened ring surface is formed to better fit the outer wall of the negative terminal 4. The front end of the negative terminal 4 has a guiding spherical surface 41. After the negative terminal 4 is inserted from the rear end of the negative plug 2, it is guided by the guiding spherical surface 41 and snapped into place. into the elastic inner hole 31 of the positive terminal 3 to realize the electrical connection between the two.

In order to ensure a good seal after the positive plug 1 and the negative plug 2 are connected, the rear ends of the positive plug 1 and the negative plug 2 respectively have a threaded section 15 for connecting the sealing nut and a sealing groove 16 for the sealing member to embed. After the nut is tightened on the threaded section 15, the rubber seal attached to the sealing nut is just pressed in the sealing groove 16; The annular rectangular groove 14 is provided with a sealing ring 5 in the rectangular groove 14. After the positive plug 1 and the negative plug 2 are docked, the front end of the insertion inner hole 21 of the negative plug 2 presses the sealing ring 5, thereby To a better sealing effect.

Specifically, the positive terminal 3 is fixed in the stepped inner hole 11 of the positive plug 1 in this way, the rear end of the stepped inner hole 11 has an inner groove 17, the front end has a limiting surface 18, and the inner groove 17 is provided with a limit ring 6, and the limit ring 6 has an outward expansion slope 61 and an internal expansion slope 62, and the external expansion slope 61 snaps into the inner groove 17 to prevent the withdrawal of the limit ring 6, and the positive terminal 3 is released from the positive plug 1. After the rear end is inserted, the inner expansion inclined surface 62 just abuts on the back end surface 32 at the rear end of the positive terminal 3, and the front end surface of the positive terminal 3 abuts on the limiting surface 18 at the front end of the stepped inner hole 11 and is clamped. .

The fixing of the negative terminal 4 is similar to that of the positive terminal 3. The rear end of the insertion inner hole 21 of the negative plug 2 also has the same inner groove 17 as that in the stepped inner hole 11, and the middle part of the insertion inner hole 21 has a stop slope 23. The same limit ring 6 is set in the inner groove 17, and the outer expansion slope 61 of the limit ring 6 snaps into the inner groove 17 to prevent the withdrawal of the limit ring 6, and the inner expansion slope 62 is against the negative terminal 4 On the stepped end surface 42 at the rear end, the limiting inclined surface 43 at the middle of the negative terminal 4 abuts against the advancing inclined surface 23 .

For convenience and comfort during operation, the outer surfaces of the positive plug 1 and the negative plug 2 respectively have curved anti-skid surfaces 19 that are convenient for fingers to hold when assembling and dismounting. These parts are designed to be comfortable to press according to the shape of a person's thumb and forefinger. At the same time, anti-slip lines are added on the curved anti-slip surface 19 to improve friction and avoid finger sliding during disassembly. Near the lap hole 22 on the outer surface of the negative plug 2, there is also a striated slope 24 that is convenient for exerting force when the elastic arm 13 elastically snaps into or exits the lap hole 22. When the thumb and forefinger are used to disassemble the connector, the fingers The rear portion of the palm puts effort on the grain-shaped slope 24 of the negative pole plug 2, and the front portion of the palm of the finger puts effort on the head of the elastic arm 13. Exit through hole 22.

The utility model has high conductivity, good connection strength, convenient disassembly, and reliable operation. The connection between the conductors is cylindrical surface contact, which improves the contact area. The contact resistance is reduced, and on the other hand, the connection reliability is also improved. The installation and disassembly of the positive plug 1 and the negative plug 2 adopt the human body functional structure design, thereby improving the installation efficiency and comfort.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model. Equivalent changes or modifications made by the spirit of the present utility model shall be covered within the protection scope of the present utility model.

Claims (7)

1. solar cell wire and cable connector, comprise anode plug (1) and cathode plug (2), it is characterized in that: anode plug (1) front end has the grafting cylinder (12) of band inner bore of step (11), be positioned at grafting cylinder (12) rear portion and be symmetrical arranged flexible arm (13) with respect to grafting cylinder (12) center, cathode plug (2) has stair-stepping grafting endoporus (21), the front end of cathode plug (2) has the overlap joint hole (22) that snaps in for elasticity arm (13) elasticity, anode plug (1) inserts in the grafting endoporus (21) by grafting cylinder (12), elasticity arm (13) elasticity snaps in the overlap joint hole (22) and docks with cathode plug (2), the positive terminal of connection cable (3) is fastened in the inner bore of step (11) of grafting cylinder (12), and negative terminal (4) inserts with positive terminal (3) clamping from the rear end of cathode plug (2) and realizes electrically connecting.

2. solar cell wire and cable connector according to claim 1, it is characterized in that: the front end of described positive terminal (3) has elasticity endoporus (31), negative terminal (4) front end has guiding sphere (41), and the middle electric connection that realizes between the two of the elasticity endoporus (31) of positive terminal (3) is gone in clamping to negative terminal (4) by guiding sphere (41) guiding.

3. solar cell wire and cable connector according to claim 1, it is characterized in that: described grafting cylinder (12) rear portion and be positioned at the rectangular recess (14) that offers ring-type between the elasticity arm (13), be provided with sealing ring (5) in the rectangular recess (14), after anode plug (1) and cathode plug (2) butt joint, the leading section of grafting endoporus (21) compresses sealing ring (5).

4. solar cell wire and cable connector according to claim 1 is characterized in that: the rear end of described anode plug (1) and cathode plug (2) has the thread segment (15) that can be connected for sealing nut respectively and for the seal groove (16) of seal embedding.

5. solar cell wire and cable connector according to claim 1, it is characterized in that: the rearward end of described inner bore of step (11) has inner groovy (17), leading section has confined planes (18), be provided with spacing ring (6) in the inner groovy (17), spacing ring (6) has outer rise inclined-plane (61) and internal expanding inclined-plane (62), the inclined-plane (61) that rises outward snaps in the inner groovy (17), internal expanding inclined-plane (62) withstands on the resistance that positive terminal (3) rear end has and moves back on the end face (32), and the front end face of positive terminal (3) withstands on the confined planes (18).

6. solar cell wire and cable connector according to claim 1, it is characterized in that: the rearward end of described grafting endoporus (21) has inner groovy (17), the middle part has ends into inclined-plane (23), be provided with spacing ring (6) in the inner groovy (17), spacing ring (6) has outer rise inclined-plane (61) and internal expanding inclined-plane (62), the inclined-plane (61) that rises outward snaps in the inner groovy (17), internal expanding inclined-plane (62) withstands on the step end face (42) that negative terminal (4) rear end has, and the spacing inclined-plane (43) that negative terminal (4) middle part has withstands on and ends on inclined-plane (23).

7. solar cell wire and cable connector according to claim 1, it is characterized in that: the curved non slip surface (19) 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 (24) when elasticity arm (13) elasticity snaps in or withdraw from overlap joint hole (22) on the outer surface of cathode plug (2).

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