CN215581055U - Connecting device for photovoltaic field combiner box - Google Patents
Connecting device for photovoltaic field combiner box Download PDFInfo
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- CN215581055U CN215581055U CN202121380117.9U CN202121380117U CN215581055U CN 215581055 U CN215581055 U CN 215581055U CN 202121380117 U CN202121380117 U CN 202121380117U CN 215581055 U CN215581055 U CN 215581055U
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- Prior art keywords
- clamping portion
- clamping
- photovoltaic field
- connecting wire
- junction box
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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 utility model discloses a connecting device for a photovoltaic field junction box, which comprises: first connecting wire, two centre gripping subassemblies and second connecting wire, first connecting wire are the heliciform, and first connecting wire has elasticity to can follow its axial extension and shrink, two centre gripping subassemblies can dismantle respectively and connect in the both ends of first connecting wire, and the slidable of second connecting wire passes first connecting wire, and its both ends are connected respectively in two centre gripping subassemblies for the extension length of restriction first connecting rope. The utility model can solve the problem that the cable at the connecting part of the lead and the fuse is broken because the length of the cable connected with the fuse is fixed in the prior art.
Description
Technical Field
The utility model relates to the technical field of junction boxes, in particular to a wiring device for a junction box in a photovoltaic field.
Background
The combiner box is an important component used in a transmission cable system in the power industry and is widely used in a photovoltaic power generation field.
Lead is drawn from ground and is established in the collection flow box, and draw and establish inside getting into the collection flow box, be connected through the fuse with the collection flow box inside, realize the intercommunication of circuit, the length that wire and fuse are connected is fixed usually, the cable in photovoltaic place receives the influence of temperature, when the circuit takes place expend with heat and contract with cold or sink because of the ground, can produce the pulling force to fixed connection's cable conductor, under the effect of pulling force, because the cable conductor can't carry out automatic compensation to connecting length, thereby cause the wire fracture of wire and fuse junction, lead to the short circuit to burn out the fuse even.
Therefore, a wiring device for a photovoltaic field junction box is needed, and the problem that cables at the connection positions of wires and fuses are broken due to the fact that the lengths of the cables connected with the wires and the fuses are fixed in the prior art is solved.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a wiring device for a photovoltaic field combiner box, which solves the technical problem in the prior art that a cable at a connection position of a lead and a fuse is broken due to the fixed length of the cable connected to the lead and the fuse.
In order to achieve the above technical object, the present invention provides a connecting device for a photovoltaic field junction box, including:
the first connecting wire is spiral and has elasticity and can extend and contract along the axial direction of the first connecting wire;
the two clamping assemblies are detachably connected to two ends of the first connecting line respectively;
the second connecting line can penetrate through the first connecting line in a sliding mode, and two ends of the second connecting line are connected to the two clamping assemblies respectively and used for limiting the extension length of the first connecting rope.
Furthermore, the clamping assembly comprises a clamping portion, the cross section of the clamping portion is annular, a notch communicated with the inside of the clamping portion is formed in the outer wall of the clamping portion, the notch penetrates through the clamping portion along the axis of the clamping portion, and the clamping portion is sleeved on the first connecting line.
Further, the clamping part is elastic.
Furthermore, the clamping assembly further comprises at least one fixing ring, and the fixing ring is sleeved on the first connecting line and sleeved on the clamping portion.
Further, the retaining ring is elastic.
Furthermore, at least one ring channel has been seted up along circumference to the outer wall of clamping part, the ring channel sets up with fixed ring one-to-one, fixed ring inlays to be located the ring channel.
Furthermore, the clamping part and the fixing ring are made of insulating materials.
Furthermore, the clamping component further comprises at least one protrusion, the protrusion is connected to the inner wall of the clamping part, and the protrusion is arranged along the radial direction of the clamping part and abuts against the first connecting line.
Furthermore, the number of the protrusions in the clamping assembly can be one, two, three, four or more, and the protrusions are uniformly arranged along the circumferential inner wall of the clamping part.
Further, the second connecting string has elasticity and can be extended and contracted along the axis thereof.
Compared with the prior art, the utility model has the beneficial effects that: first connecting wire is the heliciform and has elasticity, make it can follow self axis extension under the pulling force effect, a length for connecting cable and fuse carries out automatic compensation, two centre gripping subassemblies can dismantle the both ends of connecting in first connecting wire respectively, a fixed and first connecting wire of being used for with it, second connecting wire slidable passes first connecting wire, and its both ends are connected respectively in two centre gripping subassemblies, a length for restricting first connecting wire extension length, such setting, carry out automatic compensation to the length of junction through the first connecting wire of telescopic, the extension length of first connecting wire is restricted through second connecting wire and centre gripping subassembly simultaneously, prevent that it from losing elasticity after reaching the limit because of extension length, influence the normal operating of this device.
Drawings
Fig. 1 is a schematic structural diagram of a connection device for a photovoltaic field junction box according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a connection portion of the clamping portion, the fixing ring and the first connecting line according to an embodiment of the present invention;
fig. 3 is a sectional view taken along line a-a of fig. 2.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Referring to fig. 1, the present invention provides a connecting device for a photovoltaic field junction box, comprising: first connecting wire 1, two centre gripping subassemblies 2 and second connecting wire 3, first connecting wire 1 is the heliciform, and first connecting wire 1 has elasticity to can follow its axial extension and shrink, two centre gripping subassemblies 2 can be dismantled respectively and connect in the both ends of first connecting wire 1, and second connecting wire 3 slidable passes first connecting wire 1, and its both ends are connected respectively in two centre gripping subassemblies 2 for the extension length of restriction first connecting rope.
Further, it can be understood that first connecting wire 1 is the heliciform and has elasticity for it can be followed self axis extension under the pulling force effect, a length for carrying out automatic compensation to cable and fuse junction, two centre gripping subassemblies 2 can be dismantled respectively and connect in the both ends of first connecting wire 1, be used for with its fixed with first connecting wire 1, first connecting wire 1 is worn in second connecting wire 3 slidable, and its both ends are connected respectively in two centre gripping subassemblies 2, a length for restricting first connecting wire 1 extension.
Further, specifically, the second connection line 3 is embedded in the first connection line 1 having a spiral shape in the present invention, so as to prevent the first connection line 1 and the second connection line 3 from being entangled with each other.
Further, such setting carries out automatic compensation through the first connecting wire 1 of telescopic to the length of junction, restricts the extension length of first connecting wire 1 simultaneously through second connecting wire 3 and centre gripping subassembly 2, prevents that it from losing elasticity after reaching the limit because of extension length, influencing the normal operating of this device.
As shown in fig. 2 and 3, the clamping assembly 2 includes a clamping portion 21, a cross section of the clamping portion 21 is annular, a notch 211 communicating with an inside of the clamping portion 21 is formed in an outer wall of the clamping portion 21, the notch 211 penetrates through the clamping portion 21 along an axis of the clamping portion 21, and the clamping portion 21 is sleeved on the first connecting line 1.
Further, it can be understood that the clamping portion 21 is sleeved on the outer surface of the first connecting line 1 through the notch 211 and is coaxially disposed with the first connecting line 1, so as to facilitate the installation and detachment of the clamping portion 21.
As shown in fig. 2 and 3, the clamping portion 21 is elastic.
Further, it can be understood that, the user can open the clamping portion 21 along the notch 211 of the clamping portion 21 and fix the clamping portion 21 on the first connection line 1, and the clamping portion 21 has elasticity, and automatically clamps the surface of the first connection line 1 after removing the force.
As shown in fig. 2 and fig. 3, the clamping assembly 2 further includes at least one fixing ring 22, and the fixing ring 22 is sleeved on the first connecting line 1 and sleeved on the clamping portion 21.
Further, in order to fix the clamping portion 21 and prevent the clamping portion 21 and the surface of the first connection line 1 from sliding relatively, which affects the use of the device, the fixing ring 22 is sleeved on the clamping portion 21 and used for clamping the first connection line 1.
As shown in fig. 2 and 3, the fixing ring 22 is elastic.
Further, it will be appreciated that the resilient retainer ring 22 can provide an adaptive clamping force to the clamp portion 21.
As shown in fig. 2, at least one annular groove 212 is formed in the outer wall of the clamping portion 21 along the circumferential direction, the annular grooves 212 are arranged in one-to-one correspondence with the fixing rings 22, and the fixing rings 22 are embedded in the annular grooves 212.
Further, it will be appreciated that the retaining ring 22 is mounted in the annular groove 212 to prevent the retaining ring 22 from slipping during use, which could interfere with the operation of the device.
Further, the material of the clamping portion 21 and the fixing ring 22 is insulating material.
As shown in fig. 3, the clamping assembly 2 further includes at least one protrusion 23, the protrusion 23 is connected to an inner wall of the clamping portion 21, and the protrusion 23 is disposed along a radial direction of the clamping portion 21 and abuts against the first connecting line 1.
Further, it can be understood that, in order to increase the sliding friction force between the clamping portion 21 and the first connecting line 1, the protrusion 23 is connected to the inner wall of the clamping portion 21 and abuts against the surface of the first connecting line 1 for preventing the relative sliding of the two.
Further, the number of the protrusions 23 in the clamping assembly 2 may be one, two, three, four or more, and the plurality of protrusions 23 are uniformly arranged along the circumferential inner wall of the clamping portion 21.
Further, the second connecting string has elasticity and can be extended and contracted along its axis.
According to the specific working process, the first connecting wire 1 is spiral and elastic, so that the first connecting wire can extend along the axis of the first connecting wire 1 under the action of tensile force and is used for automatically compensating the length of the joint of a cable and a fuse, the two clamping assemblies 2 are detachably connected to two ends of the first connecting wire 1 respectively and are used for fixing the first connecting wire 1, the second connecting wire 3 can penetrate through the first connecting wire 1 in a sliding mode, and two ends of the second connecting wire 3 are connected to the two clamping assemblies 2 respectively and are used for limiting the extending length of the first connecting wire 1.
Further, during the use, the user struts clamping part 21 along the breach 211 of clamping part 21 earlier, then will strut clamping part 21 after establishing the both ends of first connecting wire 1 respectively the cover, will fix fixed ring 22 simultaneously and install in the fixed slot, connect the both ends of first connecting wire 1 respectively in cable and fuse at last, like this, when the circuit takes place expend with heat and contract with cold or because of the ground sinks, first connecting wire 1 just can carry out automatic compensation to the length of the connecting wire between cable and the fuse.
Such setting carries out automatic compensation through the first connecting wire 1 of telescopic to the length of junction, restricts the extension length of first connecting wire 1 through second connecting wire 3 and centre gripping subassembly 2 simultaneously, prevents that it from losing elasticity after reaching the limit because of extension length, influences the normal operating of this device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a connecting device for photovoltaic place collection flow box which characterized in that includes:
the first connecting wire is spiral and has elasticity and can extend and contract along the axial direction of the first connecting wire;
the two clamping assemblies are detachably connected to two ends of the first connecting line respectively;
the second connecting line can penetrate through the first connecting line in a sliding mode, and two ends of the second connecting line are connected to the two clamping assemblies respectively and used for limiting the extension length of the first connecting rope.
2. The connecting device for the photovoltaic field junction box according to claim 1, wherein the clamping assembly comprises a clamping portion, the section of the clamping portion is annular, a notch communicated with the inside of the clamping portion is formed in the outer wall of the clamping portion, the notch penetrates through the clamping portion along the axis of the clamping portion, and the clamping portion is sleeved on the first connecting line.
3. The connecting device for a photovoltaic field junction box according to claim 2, wherein the clamping portion is resilient.
4. The connecting device for the photovoltaic field combiner box of claim 2, wherein the clamping assembly further comprises at least one fixing ring, and the fixing ring is sleeved on the first connecting line and sleeved on the clamping portion.
5. The connection device for a photovoltaic field junction box according to claim 4, wherein the retaining ring is resilient.
6. The connecting device for the photovoltaic field junction box according to claim 4, wherein at least one annular groove is formed in the outer wall of the clamping portion along the circumferential direction, the annular grooves are arranged in one-to-one correspondence with the fixing rings, and the fixing rings are embedded in the annular grooves.
7. The connecting device for the photovoltaic field junction box of claim 4, wherein the clamping portion and the fixing ring are made of insulating materials.
8. The connecting device for the photovoltaic field junction box of claim 7, wherein the clamping assembly further comprises at least one protrusion connected to an inner wall of the clamping portion, the protrusion being disposed along a radial direction of the clamping portion and abutting against the first connecting line.
9. The connecting device for the photovoltaic field junction box as claimed in claim 8, wherein the number of the protrusions in the clamping assembly is one, two, three, four or more, and the plurality of protrusions are uniformly arranged along the circumferential inner wall of the clamping portion.
10. The connecting device for a photovoltaic field junction box according to claim 1, wherein said second connecting string is elastic and can be extended and retracted along its axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121380117.9U CN215581055U (en) | 2021-06-21 | 2021-06-21 | Connecting device for photovoltaic field combiner box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121380117.9U CN215581055U (en) | 2021-06-21 | 2021-06-21 | Connecting device for photovoltaic field combiner box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215581055U true CN215581055U (en) | 2022-01-18 |
Family
ID=79819152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121380117.9U Active CN215581055U (en) | 2021-06-21 | 2021-06-21 | Connecting device for photovoltaic field combiner box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215581055U (en) |
-
2021
- 2021-06-21 CN CN202121380117.9U patent/CN215581055U/en active Active
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