CN213186035U - Photovoltaic junction box and photovoltaic module - Google Patents
Photovoltaic junction box and photovoltaic module Download PDFInfo
- Publication number
- CN213186035U CN213186035U CN202022481194.5U CN202022481194U CN213186035U CN 213186035 U CN213186035 U CN 213186035U CN 202022481194 U CN202022481194 U CN 202022481194U CN 213186035 U CN213186035 U CN 213186035U
- Authority
- CN
- China
- Prior art keywords
- diode
- box
- pad
- junction box
- heat conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000392 somatic effect Effects 0.000 abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a photovoltaic terminal box and photovoltaic module, wherein the photovoltaic terminal box includes: the LED lamp comprises a box body, a pair of connecting terminals arranged in the box body and a diode connected between the pair of connecting terminals; each connecting terminal is provided with a body part, a bus bar pad and a diode pad, wherein the bus bar pad and the diode pad are arranged on the body part; two pins of the diode are respectively connected and fixed with the diode bonding pads on the corresponding connecting terminals; a plurality of slotted holes are formed in the region of the main body part except the bus bar bonding pad and the diode bonding pad; the slotted hole is filled with a heat conductor. Compared with the prior art, the utility model discloses set up the slotted hole on this somatic part and make this somatic part upper portion position become present sieve form from original platelike and fill the radiating effect that the heat conductor has strengthened this somatic part in the slotted hole, avoid appearing because this somatic part area is great cause the middle heat dissipation poor and then cause local high temperature in order to damage the terminal box, can improve the life of terminal box.
Description
Technical Field
The utility model relates to a photovoltaic field, especially a photovoltaic terminal box and subassembly.
Background
The photovoltaic junction box is a connector for connecting the photovoltaic module and the photovoltaic cell charging control device, and mainly has the function of transmitting electric energy generated by the cell in the photovoltaic module to the storage battery through a cable for storage.
The existing photovoltaic module is larger and larger in model and silicon chip size, and comprises large-size silicon chips such as 210/182 and the like released by various manufacturers recently, so that the short-circuit current of the photovoltaic module is larger and larger, the requirements on the junction box are correspondingly improved, particularly the rated current of the junction box is improved, the performance of a diode is also required to be continuously improved, the heat dissipation problem of the junction box is directly influenced by the improvement of the current, the heat dissipation problem is not well solved, the junction box is easy to lose efficacy, and the failure of the photovoltaic module is directly caused.
In the prior art, a connecting terminal in a junction box is mostly in a sheet shape, and the temperature of different positions of the connecting terminal is usually uneven when the connecting terminal is used, specifically, the temperature of the position, close to the edge, of the connecting terminal is low, the temperature of the middle position of the connecting terminal is high, and the temperature of a local area is too high, so that the damage to the junction box is caused, and the use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic terminal box to solve not enough among the prior art, it can strengthen connecting terminal's radiating effect, avoids appearing because connecting terminal area is great to cause the middle heat dissipation poor and then cause local temperature too high in order to damage the terminal box, can improve the life of terminal box.
The utility model provides a photovoltaic junction box, which comprises a box body, a pair of connecting terminals arranged in the box body and a diode connected between the pair of connecting terminals; each connecting terminal is provided with a body part, a bus bar pad and a diode pad, wherein the bus bar pad and the diode pad are arranged on the body part; two pins of the diode are respectively connected and fixed with the diode bonding pads on the corresponding connecting terminals;
a plurality of slotted holes are formed in the main body part outside the bus bar bonding pad and the diode bonding pad; the slotted hole is filled with a heat conductor.
As a further improvement of the present invention, the heat conductor is extended in an axial direction of the groove hole, and an outer surface of the heat conductor is extended at least to the outer side surface of the body portion.
As a further improvement of the present invention, the outer surface of the heat conductor and the outer side surface of the body portion are located on the same plane.
As a further improvement of the present invention, the outer surface of the heat conductor extends out of the outer side surface of the body portion and toward the inner side wall direction of the box body protrudes so as to be in contact with the inner side wall of the box body.
As a further improvement of the utility model, the heat conductor is filled with the heat-conducting silica gel in the slot hole.
As a further improvement of the utility model, the slotted hole is a circular hole and is arranged at even intervals.
As a further improvement of the utility model, the box body include the lid and with the lower lid of going up lid looks adaptation, the upper surface of going up the lid is the curved surface.
As a further improvement of the utility model, the upper surface of the upper box cover is a wavy curved surface.
The utility model also discloses a photovoltaic module, including foretell photovoltaic terminal box.
Compared with the prior art, the utility model discloses set up the slotted hole on this somatic part and make this somatic part upper portion position change present screen form from original platelike and fill the radiating effect that the heat conductor has strengthened this somatic part in the slotted hole. The slotted hole divides the body part into a plurality of small blocks, the divided small blocks can improve the overall heat dissipation effect of the body part, the damage of the junction box caused by poor middle heat dissipation and over-high local temperature due to large area of the body part is avoided, and the service life of the junction box can be prolonged.
Drawings
Fig. 1 is a schematic view of an internal structure of a photovoltaic junction box disclosed in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a box body of a photovoltaic junction box disclosed in an embodiment of the present invention;
description of reference numerals: 1-box, 11-upper box cover, 2-connecting terminal, 21-body, 210-slotted hole, 22-bus bar pad, 23-diode pad, 3-diode, 31-pin, 4-heat conductor.
Detailed Description
The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
The embodiment of the utility model provides a: as shown in fig. 1, a photovoltaic junction box is disclosed, which comprises a box body 1, a pair of connection terminals 2 arranged in the box body 1, and a diode 3 connected between the pair of connection terminals 2. It should be noted that in the present embodiment, a split junction box is described as an example, the split junction box generally includes a positive junction box, a negative junction box, and an intermediate junction box, and the internal structures of the positive junction box, the negative junction box, and the intermediate junction box are all as described above, a pair of connection terminals 2 is provided in one box body 1, and the two connection terminals 2 are connected by a diode 3. Of course, for other types of terminal blocks, a plurality of pairs of connection terminals 2 may be provided in the case body 1.
Each of the connection terminals 2 has a body portion 21, and a bus bar pad 22 and a diode pad 23 provided on the body portion 21. The bus bar pad 22 is used for being connected and fixed with a corresponding bus bar, the diode pad 23 is used for being connected and fixed with a pin 31 of the diode 3, and the two pins 31 of the diode 3 are respectively connected and fixed with the diode pad 23 on the corresponding connecting terminal 2.
A plurality of slots 210 are arranged on the body part 21 except for the bus bar bonding pad 22 and the diode bonding pad 23; the slot 210 is filled with a heat conductor 4, and the shape of the heat conductor 4 is matched with the slot 210.
Providing the slot 210 in the main body 21 changes the position of the upper portion of the main body 21 from the original plate shape to the current screen shape and filling the slot 210 with the heat conductor 4 enhances the heat dissipation effect of the main body 21. The heat conductor 4 is attached to the inner side wall of the slot 210, and the heat conductor 4 conducts and diffuses the heat generated on the body 21 to reduce the heat on the body 21.
The slot 210 can improve the overall heat dissipation effect of the main body 21, and avoid the damage of the junction box caused by the local over-high temperature due to the middle heat dissipation difference caused by the large area of the main body 21. It should be noted that although the slot 210 is provided, the use of the material of the main body 21 is not reduced, and the amount of the conductive sheet required to conduct the rated current is not changed, but only the shape of the conductive sheet is changed.
In order to improve the heat dissipation effect of the main body 21, in the embodiment, the heat conductor 4 extends along the axial direction of the slot 210, and the outer surface of the heat conductor 4 extends at least to the outer side surface of the main body 21.
Preferably, the outer surface of the heat conductor 4 is flush with the outer surface of the main body 21, the heat conductor 4 has a cylindrical structure in the present embodiment, the outer surface of the heat conductor 4 represents the top and bottom surfaces of a cylinder, and the outer surface of the heat conductor 4 is a surface of the heat conductor 4 that is not attached to the main body 21. The outer surface of the heat conductor 4 and the outer side surface of the body portion 21 are arranged on the same plane, so that the heat conductor 4 can be conveniently assembled and molded. After all parts in the junction box are installed and fixed, sealant can be filled in the box body of the junction box, and the heat conductor 4 transmits the heat of the body part 21 to the box body 1 through the sealant so as to dissipate the heat through the box body 1.
In another embodiment, the outer surface of the heat conductor 4 extends out of the outer side surface of the body portion 21 and protrudes towards the inner side wall of the box body 1 to abut against the inner side wall of the box body 1. The heat conductor 4 extends out of the outer side surface of the body portion 21 and protrudes towards the inner side wall of the box body 1, so that heat generated on the body portion 21 is quickly conducted to the box body 1 through the heat conductor 4 and is quickly released through the box body 1.
In the embodiment, the heat conductor 4 is a heat conductive silicone filled in the slot 210. The heat conductor 4 is formed by filling the heat-conducting silica gel, so that the formed heat conductor 4 can be attached to the hole wall of the slotted hole 210 as far as possible, and the heat conduction can be realized more conveniently and efficiently.
In the embodiment, the slots 210 are circular holes and are uniformly spaced. The slots 210 are uniformly spaced, so that heat dissipation inside the body part 21 can be realized more efficiently.
Further, in order to dissipate heat of the connection terminal in the box body 1 more efficiently in this embodiment, as shown in fig. 2, the upper box cover 11 of the box body 1 is optimized, in this embodiment, the box body 1 includes the upper box cover 11 and the lower box cover adapted to the upper box cover 11, and the upper surface of the upper box cover 11 is a curved surface. The upper surface of the upper box cover 11 is set to be a curved surface, so that the contact area of the upper box cover 11 and air can be increased, and the heat dissipation efficiency can be improved.
As a further optimized scheme, the upper surface of the upper box cover 11 is a wave-shaped curved surface, and the wave-shaped curved surfaces are symmetrically arranged.
The utility model also discloses a photovoltaic module, including foretell photovoltaic terminal box, lamination piece and frame, the back that the lamination subtracts is fixed to the terminal box.
The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.
Claims (9)
1. A photovoltaic junction box, its characterized in that: the LED lamp comprises a box body, a pair of connecting terminals arranged in the box body and a diode connected between the pair of connecting terminals; each connecting terminal is provided with a body part, a bus bar pad and a diode pad, wherein the bus bar pad and the diode pad are arranged on the body part; two pins of the diode are respectively connected and fixed with the diode bonding pads on the corresponding connecting terminals;
a plurality of slotted holes are formed in the main body part outside the bus bar bonding pad and the diode bonding pad; the slotted hole is filled with a heat conductor.
2. The photovoltaic junction box of claim 1, wherein: the heat conductor extends along the axial direction of the slotted hole, and the outer surface of the heat conductor at least extends to the outer side surface of the body part.
3. The photovoltaic junction box of claim 2, wherein: the outer surface of the heat conductor and the outer side surface of the body part are positioned on the same plane.
4. The photovoltaic junction box of claim 2, wherein: the outer surface of the heat conductor extends out of the outer side surface of the body part and protrudes towards the inner side wall of the box body to be abutted against the inner side wall of the box body.
5. The photovoltaic junction box of claim 1, wherein: the heat conductor is heat conduction silica gel filled in the slot hole.
6. The photovoltaic junction box of claim 1, wherein: the slotted hole is a circular hole and is arranged at even intervals.
7. The photovoltaic junction box of claim 1, wherein: the box body comprises an upper box cover and a lower box cover matched with the upper box cover, and the upper surface of the upper box cover is a curved surface.
8. The photovoltaic junction box of claim 7, wherein: the upper surface of the upper box cover is a wavy curved surface.
9. A photovoltaic module, characterized by: comprising a photovoltaic junction box according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481194.5U CN213186035U (en) | 2020-10-30 | 2020-10-30 | Photovoltaic junction box and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481194.5U CN213186035U (en) | 2020-10-30 | 2020-10-30 | Photovoltaic junction box and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213186035U true CN213186035U (en) | 2021-05-11 |
Family
ID=75781133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481194.5U Expired - Fee Related CN213186035U (en) | 2020-10-30 | 2020-10-30 | Photovoltaic junction box and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213186035U (en) |
-
2020
- 2020-10-30 CN CN202022481194.5U patent/CN213186035U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210403868U (en) | Battery module and battery | |
| CN206422182U (en) | A kind of battery modules radiator structure and this kind of battery modules | |
| CN108232079B (en) | Soft packet of lithium ion opens and cuts off power supply pond system | |
| CN213186035U (en) | Photovoltaic junction box and photovoltaic module | |
| CN214043892U (en) | Battery module, battery package and battery | |
| CN210467825U (en) | SMD diode with anti-interference structure | |
| CN210379351U (en) | Battery core and battery module | |
| CN210092284U (en) | Large module structure of lithium ion battery | |
| CN110649348A (en) | Quick radiating battery package | |
| CN104993185B (en) | Storage battery with integrated heat radiation structure | |
| CN108172928B (en) | Battery pack heat radiation structure | |
| CN114189206A (en) | Photovoltaic module junction box | |
| CN209472032U (en) | A kind of automobile batteries module box body insulation board insulating trip | |
| CN207558906U (en) | Power battery pack | |
| CN208277863U (en) | A kind of electric car block terminal box body | |
| CN110690529A (en) | Battery module fast dispels heat | |
| CN219575739U (en) | Heat radiation structure of power module | |
| CN214948381U (en) | Waterproof type LED lamp area | |
| CN214900790U (en) | Split type terminal box of solar photovoltaic module | |
| CN216311765U (en) | Low-loss silicon carbide diode | |
| CN218586230U (en) | Battery module, battery package and consumer | |
| CN211958156U (en) | Public plug for battery load test | |
| CN212900984U (en) | LED filament lamp with high heat dissipation performance | |
| CN217114370U (en) | Novel 5G anti-reverse diode | |
| CN213521379U (en) | Integrated high-current circulating cut-off device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |