CN214756234U

CN214756234U - Junction box, photovoltaic module and power distribution system

Info

Publication number: CN214756234U
Application number: CN202120372897.6U
Authority: CN
Inventors: 张传升; 赵剑; 吴华; 彭廉钦
Original assignee: Chongqing Shenhua Thin Film Solar Technology Co ltd
Current assignee: Shenzhou Solid Waste Treatment Guangdong Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-16
Anticipated expiration: 2031-02-08

Abstract

The utility model provides a terminal box and photovoltaic module, distribution system, wherein, the terminal box includes terminal box body, positive terminal and negative terminal, the positive terminal sets up on the terminal box body, the positive terminal is connected with anodal public end and anodal female end respectively, the negative terminal sets up on the terminal box body, the negative terminal is connected with negative public end and negative female end respectively. The utility model discloses can enough realize establishing ties between the terminal box, can realize the parallelly connected between the terminal box again, and connect convenient, swift.

Description

Junction box, photovoltaic module and power distribution system

Technical Field

The utility model relates to a solar module technical field, it is specific, relate to a terminal box and photovoltaic module, power distribution system.

Background

In photovoltaic building design, in order to comprehensively consider the use safety of system voltage and enhance the design adaptability of the module, the photovoltaic module is required to have the functions of parallel connection and series connection under the condition of not additionally adding a connector. At present, junction boxes are arranged in solar modules, however, the positive electrode and the negative electrode of the traditional solar cell junction box are connected with a single socket, and batteries can only be connected in series, and if the batteries are connected in parallel, an additional connector is needed.

To the problem among the prior art, the utility model provides a but both series connection and parallelly connected, and terminal box and photovoltaic module, distribution system that can the high-speed joint.

SUMMERY OF THE UTILITY MODEL

To the problem among the above-mentioned prior art, the utility model provides a terminal box and photovoltaic module, distribution system can enough realize establishing ties between the terminal box, can realize the parallelly connected between the terminal box again, and connect convenient, swift.

In a first aspect, the utility model provides a junction box, including terminal box body, positive terminal and negative terminal, positive terminal sets up on the terminal box body, positive terminal is connected with anodal public end and anodal female end respectively, the negative terminal sets up on the terminal box body, the negative terminal is connected with negative public end and negative female end respectively.

In one embodiment, the device further comprises a first anti-reverse diode, an anode of the first anti-reverse diode is connected with the anode terminal, and a cathode of the first anti-reverse diode is respectively connected with the anode male end and the anode female end.

The beneficial effects of adopting the above embodiment are: the arrangement of the anti-reverse diode can avoid heating or damage of devices on the junction box caused by current backflow.

In one embodiment, the power supply further comprises a second anti-reverse diode, an anode of the second anti-reverse diode is connected with the negative terminal, and a cathode of the second anti-reverse diode is respectively connected with the negative male end and the negative female end.

In a second aspect, the utility model also provides a photovoltaic module, including above-mentioned terminal box.

In one embodiment, the number of terminal blocks is at least two.

The beneficial effects of adopting the above embodiment are: and the series connection or the parallel connection between the junction boxes is realized.

In one embodiment, at least two of the junction boxes are connected in sequence, wherein the positive male end of a first junction box is connected with the positive female end of a second junction box, and the negative male end of the first junction box is connected with the negative female end of the second junction box.

The beneficial effects of adopting the above embodiment are: the parallel connection between the two junction boxes is realized, and the connection is convenient and quick.

The third aspect of the utility model also provides a power distribution system, including above-mentioned photovoltaic module.

In one embodiment, the photovoltaic module further comprises a junction box, an inverter and a power distribution cabinet, wherein the photovoltaic module, the junction box, the inverter and the power distribution cabinet are connected in sequence.

The beneficial effects of adopting the above embodiment are: for providing electrical energy to buildings or for incorporation into an electrical grid.

Compared with the prior art, the utility model has the advantages of:

(1) the limitation that the existing junction boxes can only be connected in series is solved, and the applicability of the junction boxes is improved.

(2) The series connection of the junction boxes can be realized, and the parallel connection of the junction boxes can be realized.

(3) The arrangement of the anti-reverse diode can avoid heating or damage of devices on the junction box caused by current backflow.

(4) The male end and the female end are matched, so that the connection is convenient and quick.

The technical features mentioned above can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the invention is achieved.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings. Wherein:

FIG. 1 shows a schematic view of a junction box;

in the drawings, like parts are provided with like reference numerals. The drawings are not to scale.

10-a junction box; 11-a junction box body; 13-positive terminal; 131-positive pole male end; 133-positive female terminal; 15-negative terminal; 151-negative male end; 153-negative female end; 17-a first anti-reverse diode; 19-second anti-reverse diode.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Example 1:

a junction box 10 comprises a junction box body 11, a positive terminal 13 and a negative terminal 15, wherein the positive terminal 13 is arranged on the junction box body 11, the positive terminal 13 is respectively connected with a positive male end 131 and a positive female end 133, the negative terminal 15 is arranged on the junction box body 11, and the negative terminal 15 is respectively connected with a negative male end 151 and a negative female end 153.

Specifically, in this embodiment, the utility model discloses be applied to in the photovoltaic architectural design, terminal box 10 is the solar cell terminal box.

The junction box body 11 is a main structure of the junction box 10, the junction box body 11 is provided with a positive terminal 13 and a negative terminal 15, and the positive terminal 13 and the negative terminal 15 on the junction box body 11 are arranged at intervals.

The positive terminal 13 is connected to the positive male terminal 131 and the positive female terminal 133, and the negative terminal 15 is connected to the negative male terminal 151 and the negative female terminal 153, respectively.

Example 2:

as shown in fig. 1, a junction box 10 includes a junction box body 11, a positive terminal 13, a negative terminal 15, a first anti-reverse diode 17 and a second anti-reverse diode 19, the positive terminal 13 is disposed on the junction box body 11, a positive electrode of the first anti-reverse diode 17 is connected to the positive terminal 13, a negative electrode of the first anti-reverse diode 17 is respectively connected to a positive male terminal 131 and a positive female terminal 133, the negative terminal 15 is disposed on the junction box body 11, a positive electrode of the second anti-reverse diode 19 is connected to the negative terminal 15, and a negative electrode of the second anti-reverse diode 19 is respectively connected to a negative male terminal 151 and a negative female terminal 153.

The first anti-reverse diode 17 is arranged between the positive terminal 13 and the positive male end 131 and the positive female end 133, and the cathode of the first anti-reverse diode 17 is connected with the positive male end 131 and the positive female end 133 respectively, so as to prevent the heating or damage of the devices on the junction box 10 caused by the backflow of current.

The second anti-reverse diode 19 is arranged between the negative terminal 15 and the negative male terminal 151 and the negative female terminal 155, the anode of the second anti-reverse diode 19 is connected with the negative terminal 15, and the cathode of the second anti-reverse diode 19 is respectively connected with the negative male terminal 151 and the negative female terminal 153, so as to avoid heating or damage of devices on the junction box 10 caused by current backflow.

Example 3:

a photovoltaic module comprises the junction boxes 10 in the embodiment 2, the number of the junction boxes 10 is at least two, and at least two junction boxes 10 are sequentially connected, wherein a positive male end of a first junction box is connected with a positive female end of a second junction box, and a negative male end of the first junction box is connected with a negative female end of the second junction box.

Specifically, in this embodiment, the photovoltaic module includes three terminal boxes 10 that connect gradually, and the anodal public end of first terminal box is connected with the anodal female end of second terminal box, and the anodal public end of second terminal box is connected with the anodal female end of third terminal box, and the negative pole public end of first terminal box is connected with the negative pole female end of second terminal box, and the negative pole public end of second terminal box is connected with the negative pole female end of third terminal box, and above-mentioned connected mode has realized the parallel connection between three terminal boxes 10.

In one embodiment, the positive male terminal of the first junction box is connected to the negative female terminal of the second junction box, and the positive male terminal of the second junction box is connected to the negative female terminal of the third junction box, so as to realize the series connection of the three junction boxes 10.

In one embodiment, a plurality of terminal blocks 10 are connected in series as described above.

In one embodiment, the positive male end of the first junction box is matched with the positive female end of the second junction box, the positive male end of the first junction box is connected with the positive female end of the second junction box in a connection mode such as plugging and clamping, the negative male end of the first junction box is matched with the negative female end of the second junction box, the negative male end of the first junction box is connected with the negative female end of the second junction box in a connection mode such as plugging and clamping, and the adjacent male ends and the adjacent female ends of the rest of sequentially connected junction boxes 10 are the same.

Example 4:

the utility model provides a power distribution system, includes photovoltaic module, collection flow box, inverter and the switch board in above-mentioned embodiment 3, and photovoltaic module, collection flow box, inverter and switch board are electric connection in proper order for provide the electric energy for the building or incorporate into the electric wire netting.

The beneficial effects of the above embodiment are as follows:

In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims

1. A junction box, comprising:

a junction box body;

the positive terminal is arranged on the junction box body and is respectively connected with the positive male end and the positive female end; and

and the negative terminal is arranged on the junction box body and is respectively connected with the negative male end and the negative female end.

2. The junction box of claim 1, further comprising a first anti-reverse diode, an anode of the first anti-reverse diode being connected to the positive terminal, and a cathode of the first anti-reverse diode being connected to the positive male terminal and the positive female terminal, respectively.

3. The junction box according to claim 1 or 2, further comprising a second anti-reverse diode, wherein an anode of the second anti-reverse diode is connected with the negative terminal, and a cathode of the second anti-reverse diode is connected with the negative male terminal and the negative female terminal, respectively.

4. A photovoltaic module comprising a junction box according to any one of claims 1-3.

5. The photovoltaic module of claim 4, wherein the junction box is at least two in number.

6. The photovoltaic module of claim 5, wherein at least two of the junction boxes are connected in series;

the positive pole male end of the first junction box is connected with the positive pole female end of the second junction box, and the negative pole male end of the first junction box is connected with the negative pole female end of the second junction box.

7. An electrical distribution system comprising a photovoltaic module according to any of claims 4 to 6.

8. The power distribution system of claim 7, further comprising a combiner box, an inverter, and a power distribution cabinet, wherein the photovoltaic module, the combiner box, the inverter, and the power distribution cabinet are connected in sequence.