CN210669987U

CN210669987U - Resistance box device for photovoltaic module

Info

Publication number: CN210669987U
Application number: CN201921760874.1U
Authority: CN
Inventors: 高豹; 黄振飞; 高传楼
Original assignee: Changzhou Hechuang Testing Technology Co ltd
Current assignee: Hechuang testing (Jiangsu) Co.,Ltd.
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-02
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a resistance box device for a photovoltaic module, which comprises a hollow box body, a foot rest positioned in the box body, a plurality of mounting positions which are positioned in the box body and are suitable for mounting a resistor, and a cable plate which is positioned in the box body and is suitable for fixing a cable; the bottom of the box body is communicated, the side face of the box body is provided with a ventilation hole, a box door is arranged in front of the box body, and each cable on the resistor passes through the cable plate and is fixed and then extends out of the bottom of the box body to be connected with the photovoltaic module. The utility model integrates all resistors in the same resistor box, provides an independent installation position for each resistor, and installs an independent outgoing line cable, so that the resistors are isolated from a sample to be tested, and the safety risk of operators is reduced; meanwhile, the heat dissipation effect is high, the resistor can be prevented from being high in temperature, and the test precision is higher.

Description

Resistance box device for photovoltaic module

Technical Field

The utility model relates to a photovoltaic technology field especially relates to a resistance box device for photovoltaic module.

Background

An adjustable resistor needs to be connected for photovoltaic module efficiency testing, in the prior art, the resistor is placed below each photovoltaic panel sample to be tested, and because the mounting position of the photovoltaic panel sample is low (about 15-30cm) during testing, the mounting position of the resistor is also low, the safety of operators is affected, and scalding risks are easily caused; in addition, receive installation space's restriction, the box body size that is used for placing the resistor among the prior art is less, and the radiating effect is relatively poor, appears the contact position oxidation easily, leads to resistance value skew, needs oxidation film before using, the operation difficulty, and resistance box fault rate is high. Therefore, a resistance box device capable of isolating a test sample from a resistor, reducing safety risks of operators and improving heat dissipation efficiency needs to be designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the below that the resistor directly is located the photovoltaic board sample among the prior art, it is nearer apart from the test sample distance, produce easily scald risk, and the relatively poor technical problem of radiating effect, the utility model provides a resistance box device for photovoltaic module solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: a resistance box device for a photovoltaic module comprises a box body with a hollow interior, a foot rest positioned in the box body, a plurality of mounting positions positioned in the box body and suitable for mounting a resistor, and a cable plate positioned in the box body and suitable for fixing a cable; the bottom of the box body is communicated, the side face of the box body is provided with a ventilation hole, a box door is arranged in front of the box body, and each cable on the resistor passes through the cable plate and is fixed and then extends out of the bottom of the box body to be connected with the photovoltaic module.

Preferably, the inside vertical array of box is fixed with a plurality of mounting panels, every be fixed with two L type fixing bases on the mounting panel, two form the installation position between the L type fixing base.

Preferably, a plurality of cross rods are vertically arranged in an array in the box body, each cross rod is provided with a groove suitable for placing a resistor, and the grooves form mounting positions.

Furthermore, the groove is arranged towards the direction of the box door, and a stop block suitable for stopping the resistor is arranged at the notch of the groove.

Furthermore, a plurality of sockets are arranged on the side wall of the notch of the groove, a stop block is arranged at each socket and is inserted into the corresponding socket and hinged to the side wall of the groove.

Preferably, the number of the cable plates is two, the two cable plates are fixed on two sides of the installation position, cable fixing holes are formed in the cable plates, the cable fixing holes in each cable plate correspond to the installation positions one to one, and cables are fixed in the cable fixing holes through binding bands.

Preferably, an arc-shaped rain shield is integrally formed at an upper edge of each of the ventilation holes.

Further, the top of box still is provided with leaks the rain board, it is the type of falling V to leak the rain board and arranges, leak the mirror image plane of rain board with the box lateral wall at ventilation hole place is perpendicular.

The utility model has the advantages that:

(1) the utility model integrates all resistors in the same resistor box, provides an independent installation position for each resistor, and installs an independent outgoing line cable, so that the resistors are isolated from a sample to be tested, and the safety risk of operators is reduced; meanwhile, the bottom of the resistance box is isolated from the ground by foot rests, and the resistance box is provided with ventilation holes favorable for heat dissipation, so that the heat dissipation effect is ensured, the resistor is prevented from being high in temperature, and the test precision is higher.

(2) The utility model discloses place every resistor in independent recess, the resistor by the swing joint's of recess notch department dog shelters from, avoids droing, and the resistor can directly be placed in the recess, need not the use tool installation fixed.

(3) The utility model discloses in be provided with arc weather shield on the ventilation hole of box, avoid the rainwater to get into the box through the ventilation hole under the condition that does not influence the ventilation hole and ventilate.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of a specific embodiment of a resistance box device for a photovoltaic module according to the present invention;

fig. 2 is a front view of the resistor box device for photovoltaic modules shown in fig. 1;

FIG. 3 is an enlarged view at C of FIG. 2;

3 FIG. 3 4 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3

FIG. 5 is an enlarged view at D of FIG. 4;

fig. 6 is a perspective view of a cross bar in the resistor box apparatus for photovoltaic modules shown in fig. 1;

fig. 7 is a front view of a specific embodiment of the resistance box device for photovoltaic module according to the present invention;

FIG. 8 is an enlarged view at E in FIG. 7;

fig. 9 is a sectional view taken along line B-B in fig. 7.

In the figure, 1, a box body, 2, a foot rest, 3, an installation position, 4, a cable plate, 401, a cable fixing hole, 5, a box door, 6, a ventilation hole, 7, a cable, 8, a resistor, 9, an installation plate, 10, an L-shaped fixing seat, 101, an installation hole, 11, a rain leaking plate, 12, a binding band, 13, a cross rod, 14, a groove, 15, a stop block, 16, a socket, 17 and an arc rain baffle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Embodiment 1, as shown in fig. 7 to 9, a resistance box device for photovoltaic module comprises a box body 1 with a hollow inside, a foot rest 2 positioned inside the box body 1, a plurality of mounting positions 3 positioned inside the box body 1 and suitable for mounting a resistor 8, and a cable plate 4 positioned inside the box body 1 and suitable for fixing a cable 7; the bottom of box 1 link up, and the side of box 1 is equipped with ventilation hole 6, and the place ahead of box 1 is equipped with chamber door 5, and the cable 7 on every resistor 8 stretches out from the bottom of box 1 after fixed through cable board 4 and is connected with photovoltaic module.

Box 1 is the cuboid structure, box 1's length is 30cm, the width is 15cm, highly be 70cm, 1 inside 7 installation positions 3 that are provided with of box, 1 inside installation position 3 of box sets up towards 5 directions of chamber door, open chamber door 5 and can install resistor 8, ventilation hole 6 is located 1 lateral wall of the box of 5 both sides of chamber door, 1 inside vertical array of box is fixed with a plurality of mounting panels 9, mounting panel 9 quantity is 7, be fixed with two L type fixing bases 10 on every mounting panel 9, form installation position 3 between two L type fixing bases 10, mounting hole 101 has on the opposite face of two L type fixing bases 10, the mounting hole 101 after-fixing is passed at the both ends of resistor 8. Cable board 4 is provided with two, two cable boards 4 are fixed in the both sides of installation position 3, specifically be fixed in the both ends of mounting panel 9, and the both sides wall face setting of laminating box 1, be equipped with cable fixed orifices 401 on the cable board 4, cable fixed orifices 401 and installation position 3 one-to-one on every cable board 4, cable 7 fixes on cable fixed orifices 401 through bandage 12, arouse anodal cable 7 and negative pole cable 7 on every resistor 8, anodal cable 7 and negative pole cable 7 are fixed respectively on two cable boards 4, bandage 12 can use the wire or the plastics ribbon that has insulating cladding.

Embodiment 2, this embodiment is different from embodiment 1 in the structure of the mounting locations 3, and as shown in fig. 1-6, this embodiment has a plurality of bars 13 arranged in a vertical array inside the box 1, the number of the bars 13 is 7, each bar 13 has a groove 14 suitable for placing the resistor 8, and the grooves 14 form the mounting locations 3. The groove 14 is preferably arranged towards the direction of the box door 5, a stop 15 suitable for stopping the resistor 8 is arranged at the notch of the groove 14, in order to facilitate taking and placing of the resistor 8, the stop 15 is preferably in a movable connection mode, specifically, a plurality of sockets 16 are arranged on the side wall of the notch of the groove 14, the sockets 16 are arranged in pairs, a stop 15 is arranged at each socket 16, the stop 15 is inserted into the socket 16 and hinged to the side wall of the groove 14, when the resistor 8 needs to be placed, the stop 15 is screwed into the socket 16, after the placement is completed, the stop 15 is screwed out to enable the stop 15 to stop the resistor 8, the stop 15 is arranged in pairs to effectively stop the resistor 8, and the symmetry axis of the stop 15 arranged in pairs is the central axis of the notch.

In embodiment 1, a tool is required to mount the resistor 8 on the mounting hole 101 of the L-shaped fixing seat 10, in embodiment 2, the resistor 8 can be directly placed in the groove 14, and the mounting and fixing are not required, so that the operation of embodiment 2 is simpler compared with embodiment 1.

Embodiment 3, on the basis of embodiment 1 or embodiment 2, the upper edge integrated into one piece of every ventilation hole 6 has arc weather shield 17, and arc weather shield 17 extends downwards and is crooked to the direction of keeping away from the lateral wall of box 1, and arc weather shield 17 can shelter from ventilation hole 6 and can not influence the normal ventilation and heat dissipation in ventilation hole 6 simultaneously, and when avoiding sleet weather, sleet drifts into in the box 1 through ventilation hole 6 slant.

Embodiment 4, on the basis of embodiment 1 or embodiment 2 or embodiment 3, the top of box 1 still is provided with hourglass rain board 11, it arranges to leak rain board 11 and be the type of falling V, the mirror plane that leaks rain board 11 is perpendicular with the box 1 lateral wall at ventilation hole 6 place, the lower limb that leaks rain board 11 simultaneously sets up in the front and back surface of protruding box 1, the rainwater can flow to ground through the hourglass rain board 11 of the type of falling V, avoid 1 top ponding of box to cause hourglass rain, the direction of trickling of rainwater is perpendicular with ventilation hole 6 place face simultaneously, can avoid the rainwater to flow the in-process and get into ventilation hole 6.

The utility model discloses simple structure can be integrated in same box 1 with a plurality of resistors 8, keeps apart resistor 8 and test sample, and the mounting height of resistor 8 can improve, avoids receiving the rainwater erosion, and the test security improves, and box 1's size is unrestricted simultaneously, has sufficient heat dissipation space in box 1, resistor 8's fault rate greatly reduced.

In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a resistance box device for photovoltaic module which characterized in that: the device comprises a box body (1) with a hollow interior, a foot rest (2) positioned in the box body (1), a plurality of mounting positions (3) which are positioned in the box body (1) and are suitable for mounting resistors (8), and a cable plate (4) which is positioned in the box body (1) and is suitable for fixing cables (7);

the bottom of box (1) link up, and the side of box (1) is equipped with ventilation hole (6), and the place ahead of box (1) is equipped with chamber door (5), every cable (7) warp on resistor (8) follow after cable board (4) are fixed the bottom of box (1) is stretched out and is connected with photovoltaic module.

2. The resistance box device for photovoltaic module according to claim 1, characterized in that: the box (1) inside vertical array is fixed with a plurality of mounting panels (9), every be fixed with two L type fixing bases (10) on mounting panel (9), two form installation position (3) between L type fixing base (10).

3. The resistance box device for photovoltaic module according to claim 1, characterized in that: a plurality of cross rods (13) are vertically arranged in an array in the box body (1), each cross rod (13) is provided with a groove (14) suitable for placing a resistor (8), and the grooves (14) form mounting positions (3).

4. The resistance box device for photovoltaic module according to claim 3, characterized in that: the groove (14) is arranged towards the direction of the box door (5), and a stop block (15) suitable for stopping the resistor (8) is arranged at the notch of the groove (14).

5. The resistance box device for photovoltaic module according to claim 4, characterized in that: be located be equipped with a plurality of sockets (16) on the lateral wall of the notch of recess (14), every socket (16) department sets up a dog (15), dog (15) insert socket (16) and with the lateral wall of recess (14) is articulated.

6. The resistance box device for a photovoltaic module according to claim 2 or 3, characterized in that: the cable plate (4) is provided with two, two the cable plate (4) is fixed in the both sides of installation position (3), is equipped with cable fixed orifices (401) on cable plate (4), on every cable plate (4) cable fixed orifices (401) with installation position (3) one-to-one, cable (7) are fixed on cable fixed orifices (401) through bandage (12).

7. The resistance box device for photovoltaic module according to claim 1, characterized in that: the upper edge of each ventilation hole (6) is integrally formed with an arc-shaped rain baffle (17).

8. The resistance box device for photovoltaic module according to claim 1, characterized in that: the top of box (1) still is provided with leaks rain board (11), it is the type of falling V and arranges to leak rain board (11), the mirror image plane that leaks rain board (11) with box (1) lateral wall at ventilation hole (6) place is perpendicular.