Incoming wire fixing device for photovoltaic string inverter
By designing the wire inlet clamp, wire inlet slot, and wire pressing mechanism, the problems of messy and loose wiring harnesses in photovoltaic string inverters were solved, ensuring electrical connection stability and improving the reliability and safety of photovoltaic string inverters.
Patent Information
- Application Number
- CN202520279922.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The exposed bundles of wires at the bottom of the photovoltaic string inverter cause the wires to become messy and tangled, affecting the appearance and increasing the difficulty of maintenance. The incoming wires are also prone to loosening or poor contact, posing a safety hazard.
The design incorporates wire clamps and wire inlet slots to secure the wire harness within their respective slots. Combined with a wire clamping mechanism and a protective shell, this ensures the wire harness remains neat and prevents it from becoming loose. Rubber gaskets protect the incoming wires, and the protective shell prevents damage from external factors.
It achieves neat arrangement of wire harnesses, facilitates maintenance and repair, ensures electrical connection stability, reduces faults and safety hazards, and extends the service life of incoming lines.
Smart Images
Figure CN223858765U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to photovoltaic equipment technical field, concretely relates to a kind of photovoltaic string inverter incoming line fixing device. BACKGROUND
[0002] Photovoltaic string inverter is one of the key equipment in photovoltaic power generation system, it converts the direct current generated by photovoltaic module into alternating current, and is connected to power grid or load.
[0003] However, in the actual installation process of photovoltaic string inverter, the wire harness of the bottom of most inverters is usually bundled and exposed outside the inverter, which can easily lead to wire harness confusion and entanglement, not only affecting the appearance, but also increasing the difficulty of maintenance and overhaul;In addition, incoming line is easily affected by external tension or biological gnawing, and loose or poor contact conditions can occur, leading to unstable electrical connection, even causing failure and safety hazards, adversely affecting the normal operation of photovoltaic power generation system. UTILITY MODEL CONTENTS
[0004] In order to overcome the problem that most of the wire harness at the bottom of the inverter is usually bundled and exposed outside the inverter in the background art, which can easily lead to wire harness confusion and entanglement, not only affecting the appearance, but also increasing the difficulty of maintenance and overhaul, in addition, incoming line is easily affected by external tension or biological gnawing, and loose or poor contact conditions can occur, leading to unstable electrical connection, even causing failure and safety hazards, adversely affecting the normal operation of photovoltaic power generation system, the utility model provides a kind of photovoltaic string inverter incoming line fixing device;Through the design of incoming line clamp and incoming line groove, multiple wire harnesses can be fixed in different incoming line grooves, avoiding wire harness confusion and entanglement, making wire harnesses neat and tidy, facilitating maintenance and overhaul, at the same time, the incoming line clamp is tightly pressed in the fixed seat by the wire pressing mechanism, preventing the incoming line from loosening or poor contact due to external tension, ensuring the stability of electrical connection, effectively reducing the occurrence of failure and safety hazards, the protective shell can protect the incoming line from biological gnawing or rainwater and other external factors, prolonging the service life of the incoming line.
[0005] In order to achieve the above object, the utility model is through the following technical scheme realizes: a photovoltaic group string inverter incoming line fixing device mainly includes fixed base, incoming line clamp, wire pressing mechanism, protective shell, the fixed base is installed on the inverter shell through bolt, the inner wall of fixed base is equipped with first guide groove, the incoming line clamp is slidably installed on the first guide groove, and a plurality of groups of incoming line grooves with arc structure section are equidistantly arranged on the incoming line clamp, the wire pressing mechanism is installed in the fixed base, and is located at the bottom of the incoming line clamp, the outer wall of fixed base is equipped with second guide groove, the inner wall of protective shell is provided with guide rail, and the protective shell is slidably installed on the second guide groove through the guide rail, the side wall of fixed base is equipped with rectangular threading groove, and a plurality of U-shaped wire clamping grooves corresponding to the incoming line groove are equidistantly arranged at the lower edge of the rectangular threading groove.
[0006] The wire pressing mechanism includes a support plate, a guide rod, a wire pressing plate, and a locking screw.
[0007] The bottom of the fixed base is provided with a limiting plate, and a plurality of U-shaped branch grooves are equidistantly arranged on the limiting plate.
[0008] One side of the wire pressing plate close to the incoming line clamp is provided with a rubber gasket.
[0009] The limiting plate, the fixed base and the protective shell form a rectangular cavity structure with an open bottom.
[0010] The fixed base is provided with a protrusion, and a fastening screw for fixing the protective shell is threadedly connected to the protrusion.
[0011] The fixed base is provided with a protrusion, and a fastening screw for fixing the protective shell is threadedly connected to the protrusion.
[0012] The utility model has the advantages of:
[0013] The utility model discloses a photovoltaic group string inverter incoming line fixing device, which can fix multiple wire bundles in different incoming line grooves, avoid wire bundle disorder and winding, arrange wire bundles neatly, facilitate maintenance and overhaul, tightly press the incoming line clamp in the fixed base through the wire pressing mechanism, prevent the incoming line from loosening or poor contact due to external tension, ensure the stability of electrical connection, effectively reduce the occurrence of faults and safety hazards, and the protective shell can protect the incoming line from being bitten by animals or damaged by rainwater and other external factors, prolong the service life of the incoming line. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the three-dimensional schematic view of the utility model.
[0015] Figure 2 is the internal structure of the utility model three-dimensional schematic diagram.
[0016] Figure 3 is Figure 2 the local enlarged view of A in the middle.
[0017] Figure 4 is Figure 2 the local enlarged view of B in the middle.
[0018] Figure 5 is the protective shell open state three-dimensional schematic diagram. DETAILED DESCRIPTION
[0019] In order to make the utility model purposes, technical scheme and beneficial effect more clearly, below, along with the drawing, the preferred embodiment of the utility model is explained in detail, to facilitate technical personnel understanding.
[0020] The utility model discloses a kind of photovoltaic group string inverter incoming line fixing device, the photovoltaic group string inverter incoming line fixing device mainly includes fixed seat 1, incoming line clamp 2, wire pressing mechanism 3, protective shell 4, the fixed seat 1 is installed on inverter shell by bolt, first guide groove 101 is set on the inner wall of fixed seat 1, incoming line clamp 2 is slidably installed on first guide groove 101, and a plurality of incoming line grooves 201 with arc-shaped structure section are equidistantly set on incoming line clamp 2, wire pressing mechanism 3 is installed in fixed seat 1, located incoming line clamp 2 bottom, second guide groove 102 is set on the outer wall of fixed seat 1, guide rail 401 is arranged on the inner wall of protective shell 4, and protective shell 4 is slidably installed on second guide groove 102 by guide rail 401;Rectangular threading groove 103 is set on the side wall of fixed seat 1, and a plurality of U-shaped wire clamping grooves 104 corresponding to incoming line groove 201 are equidistantly set at the lower edge of rectangular threading groove 103.
[0021] First, fixed seat 1 is installed on inverter shell using bolt, ensure that fixed seat 1 is installed firmly, then, the incoming line of photovoltaic group string inverter is passed through incoming line groove 201 on incoming line clamp 2, select appropriate incoming line groove 201 according to needs, so that incoming line is arranged neatly, then, incoming line is tightly pressed on incoming line clamp 2 by wire pressing mechanism 3, prevent incoming line from loosening or being pulled by external force and appear bad contact condition, guarantee the stability of electrical connection, effectively reduce the occurrence of fault and security risk;The end of incoming line is clamped in U-shaped wire clamping groove 104 at the lower edge of rectangular threading groove 103 and is connected to the interface of inverter, further limit the position of incoming line, finally, protective shell 4 is slidably installed on the outer wall of fixed seat 1 along second guide groove 102, can play the protection role to incoming line and wire pressing mechanism 3, prevent external factors from causing damage to it;The utility model can effectively solve the problems, such as wire harness confusion, winding, loosening and bad contact, improve the reliability of photovoltaic group string inverter, also facilitate the maintenance and overhaul work of later period.
[0022] The wire pressing mechanism 3 comprises a support plate 301, guide rods 302, a wire pressing plate 303, and locking screws 304, the support plate 301 is installed inside the fixed seat 1 through bolts, two guide rods 302 are arranged on the wire pressing plate 303, the wire pressing plate 303 is slidingly installed on the support plate 301 through the guide rods 302 and is close to one side of the wire inlet clamp 2, the locking screws 304 are threadedly connected in the middle of the support plate 301 and are rotationally installed on the wire pressing plate 303 at the end; in the initial state, there is a certain distance between the wire pressing plate 303 and the wire inlet clamp 2, the operator passes the wire of the photovoltaic string inverter through the wire inlet slot 201 on the wire inlet clamp 2 and makes it below the wire pressing plate 303, then rotates the locking screws 304, so that the wire pressing plate 303 moves axially along the guide rods 302 and gradually approaches the wire inlet clamp 2, the wire is pressed between the wire inlet clamp 2 and the wire pressing plate 303, and the fixation of the wire is realized; the wire pressing mechanism 3 can reliably clamp the wire, ensure the fixation and stability of the wire, and thus improve the safety and reliability of the photovoltaic string inverter in use.
[0023] The bottom of the fixed seat 1 is provided with a limiting plate 105, a plurality of U-shaped wire distribution grooves 1051 are equidistantly arranged on the limiting plate 105; the U-shaped wire distribution grooves 1051 can separate the multiple wires entering the fixed seat 1, avoid mutual entanglement or intersection between the wires, and make the wires more orderly; secondly, different wires can be more conveniently identified and distinguished, and subsequent maintenance and repair work is facilitated.
[0024] One side of the wire pressing plate 303 close to the wire inlet clamp 2 is provided with a rubber gasket; the rubber gasket is soft in texture, can avoid direct contact between the wire pressing plate 303 and the wire, reduce extrusion and abrasion of the wire, and plays a role in protecting the wire.
[0025] The limiting plate 105, the fixed seat 1 and the protective shell 4 form a rectangular cavity structure with an open bottom; the wire harness connector at the bottom of the inverter can be waterproofly protected, water immersion at the wire harness connector in rainy weather is prevented, and safety is improved.
[0026] The fixed seat 1 is provided with protrusions 108, fastening screws 107 for fixing the protective shell 4 are threadedly connected on the protrusions 108; the protective shell 4 can be fixed on the fixed seat 1 firmly, it is ensured that the protective shell 4 will not be loose or fall off in use, and thus the internal wires and other components are protected.
[0027] The fixed seat 1 is provided with through holes 106 for bolt penetration on both sides.
[0028] Working process:
[0029] First, the fixed seat 1 is installed on the inverter shell by using bolts, ensuring that the fixed seat 1 is firmly installed, then the incoming line of the photovoltaic string inverter is passed through the incoming line slot 201 on the incoming line clamp 2 and is located below the wire pressing plate 303, according to the need, select the appropriate incoming line slot 201, so that the incoming line is arranged neatly, then rotate the locking screw 304, so that the wire pressing plate 303 moves axially along the guide rod 302 and gradually approaches the incoming line clamp 2, the incoming line is pressed between the incoming line clamp 2 and the wire pressing plate 303, the fixation of the incoming line is realized, preventing the incoming line from loosening or being pulled by external force to cause poor contact, ensuring the stability of the electrical connection, effectively reducing the occurrence of faults and safety hazards; then, the end of the incoming line is clamped in the U-shaped wire clamping groove 104 at the lower edge of the rectangular wire slot 103 and is connected to the interface of the inverter, further limiting the position of the incoming line, finally, the protective shell 4 is slidably installed on the outer wall of the fixed seat 1 along the second guide groove 102, which can protect the incoming line and the wire pressing mechanism 3 from damage caused by external factors; the utility model can effectively solve the problems of wire harness disorder, winding, loosening and poor contact, improve the reliability of the photovoltaic string inverter, and also facilitate the later maintenance and repair work.
[0030] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the utility model and are not limiting, although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.
Claims
1. A photovoltaic string inverter line-in fixture, characterized by: The photovoltaic string inverter incoming line fixing device comprises a fixing seat (1), an incoming line clamp (2), a wire pressing mechanism (3), a protective shell (4), the fixing seat (1) is installed on the inverter shell through bolts, a first guide groove (101) is formed on the inner wall of the fixing seat (1), the incoming line clamp (2) is slidingly installed on the first guide groove (101), a plurality of incoming line grooves (201) with arc-shaped cross sections are equidistantly formed on the incoming line clamp (2), the wire pressing mechanism (3) is installed in the fixing seat (1) and located at the bottom of the incoming line clamp (2), a second guide groove (102) is formed on the outer wall of the fixing seat (1), a guide rail (401) is arranged on the inner wall of the protective shell (4), and the protective shell (4) is slidingly installed on the second guide groove (102) through the guide rail (401); a rectangular wire passing groove (103) is formed on the side wall of the fixing seat (1), and a plurality of U-shaped wire clamping grooves (104) corresponding to the incoming line grooves (201) are equidistantly formed at the lower edge of the rectangular wire passing groove (103).
2. A photovoltaic string inverter line-in fixture as defined in claim 1, wherein: The wire pressing mechanism (3) comprises a support plate (301), a guide rod (302), a wire pressing plate (303) and a locking screw (304), the support plate (301) is installed in the fixing seat (1) through bolts, two guide rods (302) are arranged on the wire pressing plate (303), the wire pressing plate (303) is slidingly installed on the support plate (301) through the guide rods (302) and located close to one side of the incoming line clamp (2), and the locking screw (304) is threadedly connected to the middle part of the support plate (301) and rotationally installed on the wire pressing plate (303).
3. A photovoltaic string inverter line-in fixture as claimed in claim 1 or 2, characterized in that: The bottom of the fixing seat (1) is provided with a limiting plate (105), and a plurality of U-shaped wire distribution grooves (1051) are equidistantly formed on the limiting plate (105).
4. A photovoltaic string inverter line-in fixture as defined in claim 2, wherein: A rubber gasket is arranged on one side of the wire pressing plate (303) close to the incoming line clamp (2).
5. A photovoltaic string inverter line-in fixture as defined in claim 3, wherein: The limiting plate (105), the fixing seat (1) and the protective shell (4) form a rectangular cavity structure with an open bottom.
6. A photovoltaic string inverter line-in fixture as defined in claim 3, wherein: The fixing seat (1) is provided with a protruding block (108), and a fastening screw (107) for fixing the protective shell (4) is threadedly connected to the protruding block (108).
7. A photovoltaic string inverter line-in fixture as defined in claim 1 or 2, wherein: The fixing seat (1) is provided with through holes (106) for bolt penetration on both sides.