CN213817690U - Photovoltaic junction box and photovoltaic module - Google Patents
Photovoltaic junction box and photovoltaic module Download PDFInfo
- Publication number
- CN213817690U CN213817690U CN202023029056.XU CN202023029056U CN213817690U CN 213817690 U CN213817690 U CN 213817690U CN 202023029056 U CN202023029056 U CN 202023029056U CN 213817690 U CN213817690 U CN 213817690U
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- joint
- junction box
- hole
- substrate
- 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.)
- Active
Links
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)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model provides a photovoltaic terminal box and photovoltaic module of using this photovoltaic terminal box. Photovoltaic terminal box includes the casing and accepts electrically conductive base plate in the casing, electrically conductive base plate has and carries out welded structure with the busbar of photovoltaic lamination spare, photovoltaic terminal box is still including acceping joint component in the casing, the joint component has and is used for acceping welded structure's joint hole, the busbar runs through the joint component is stretched into in the joint hole with welded structure joint location, and injectd welded structure with the welding position of busbar. The utility model discloses a photovoltaic terminal box can effectively reduce/avoid the emergence of rosin joint problem between welded structure and the busbar through setting up the joint component.
Description
Technical Field
The utility model relates to a photovoltaic terminal box and photovoltaic module of using this photovoltaic terminal box belong to photovoltaic technical field.
Background
With the development of photovoltaic technology, the cell of the photovoltaic module is larger and larger, so that the power generation efficiency of the photovoltaic module is improved, and meanwhile, the short-circuit current and the open-circuit voltage of the photovoltaic module are increased, and therefore, the requirement on the photovoltaic junction box is higher.
In fact, the current transmission of the existing photovoltaic junction box is mainly realized by connecting the bus bar led out from the photovoltaic lamination part with the copper guide sheet inside the photovoltaic junction box, which means that the welding condition of the bus bar and the copper guide sheet directly affects the power generation efficiency of the photovoltaic module.
In the visitor of the photovoltaic module at present, the proportion of burning out the photovoltaic junction box caused by the insufficient solder between the bus bar and the copper guide sheet is the highest, and the potential safety hazard is huge. In order to solve the above problems, the welding condition of the bus bar and the copper guide sheet is mainly detected/reinforced by manual detection or equipment soldering and the like, but insufficient soldering still occurs, which is mainly because: 1. after welding, the welding state of the bus bar and the copper guide sheet cannot be effectively detected, so that the bus bar and the copper guide sheet are disconnected after being electrified for a long time; 2. the traditional clamping structure is not beneficial to operations such as tin soldering and the like, and the operation is time-consuming and low in working efficiency.
In view of the above, there is a need to provide a new photovoltaic junction box to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic terminal box to at least part solves above-mentioned problem, and this photovoltaic terminal box can effectively reduce/avoid the emergence of rosin joint problem between welded structure and the busbar through setting up the joint component.
In order to realize the above-mentioned utility model purpose, the utility model provides a photovoltaic terminal box, be in including the casing with accommodating conductive substrate in the casing, conductive substrate has and carries out welded structure with the busbar of photovoltaic lamination spare, the photovoltaic terminal box is still including accommodating joint component in the casing, the joint component has and is used for acceping welded structure's joint hole, the busbar runs through the joint component is and is stretched into in the joint hole with welded structure joint location, and injectd welded structure with the welding position of busbar.
As a further improvement of the utility model, the joint component includes the base, the joint hole sets up on the base, just the joint hole is provided with 2 simultaneously.
As a further improvement of the utility model, the joint component is still including connecting the elastic component on base upper portion, the elastic component with the joint hole corresponds the setting, just the elastic component part stretches into and corresponds the setting the joint is downthehole.
As a further improvement, still be equipped with on the base and be used for acceping the via hole that the busbar passes through, the via hole with the joint hole corresponds the setting, just the via hole with correspond the setting joint hole intercommunication.
As a further improvement of the present invention, the via hole has an inclined guide surface, and the bottom width of the via hole is greater than the top width of the via hole.
As a further improvement, the bottom of the base is provided with a positioning structure, just the positioning structure is located two between the joint holes.
As a further improvement of the present invention, the conductive substrate includes a first substrate and a second substrate, the welding structure includes a first soldering lug and a second soldering lug, the first soldering lug and the second soldering lug are disposed on the first substrate, and the second soldering lug are disposed on the second substrate.
As a further improvement of the present invention, the first soldering terminal is formed by bending the first substrate vertically downward, and the second soldering terminal is formed by bending the second substrate vertically downward.
As a further improvement of the present invention, the housing includes a bottom shell and a top plate fastened to the bottom shell, the top plate is detachably connected to the bottom shell, the joint member is detachably connected to the housing, and the bottom shell is provided with an accommodating portion for accommodating the joint member.
In order to realize the above purpose, the utility model also provides a photovoltaic module, include the photovoltaic lamination spare and connect the terminal box on the photovoltaic lamination spare, the terminal box is aforementioned photovoltaic terminal box.
The utility model has the advantages that: the utility model discloses a photovoltaic terminal box can carry out effectual joint to welded structure and busbar through setting up the joint component, and welding position between further fixed-position welded structure and the busbar has made things convenient for the welding between welded structure and the busbar, has effectively reduced/avoided the emergence of rosin joint problem between welded structure and the busbar simultaneously.
Drawings
Fig. 1 is a schematic perspective view of the photovoltaic junction box of the present invention without a top plate.
Fig. 2 is a top view of the photovoltaic junction box of fig. 1.
Fig. 3 is a schematic cross-sectional view of the photovoltaic junction box of fig. 2 along the direction a-a.
Fig. 4 is an enlarged view of the snap member of fig. 3.
Fig. 5 is a schematic view of the photovoltaic junction box of the present invention assembled with a photovoltaic laminate.
Fig. 6 is a schematic structural diagram of the photovoltaic module of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In order to avoid obscuring the present invention with unnecessary details, it should be noted that only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 to 5, the present invention discloses a photovoltaic junction box 100. The photovoltaic junction box 100 includes a housing 1 and a conductive substrate 2 accommodated in the housing 1, and the photovoltaic junction box 100 further includes a connector (not shown) penetrating the housing 1 and electrically connected to the conductive substrate, and a diode (not numbered) connected to the conductive substrate 2, and other common elements in the prior art, wherein the specific structure and connection relationship between the connector, the electrical element, the housing 1 and the conductive assembly 2 can adopt the existing technical solution, and therefore, the detailed description is not provided herein, and no limitation is imposed.
The housing 1 is an insulating housing made of an insulating material, and includes a bottom shell 11 and a top plate (not shown), the top plate is fastened on the bottom shell 11 to form an accommodating space 12 for accommodating the conductive substrate 2, and further, the top plate is detachably connected to the bottom shell 11, so that the conductive substrate 2 accommodated in the accommodating space 12 can be conveniently mounted and replaced.
The utility model discloses a in a preferred embodiment, still be equipped with seal structure between roof and the drain pan 11, so set up, effectively promoted photovoltaic terminal box 100's sealed degree, further promoted photovoltaic terminal box 100's life.
The conductive substrate 2 is disposed in a plate shape and connected to the bottom case 11 through a screw member 13, and preferably, the conductive substrate 2 is a metal substrate made of copper or copper alloy, and of course, in other embodiments of the present invention, the conductive substrate 21 may also be a substrate made of other conductive materials.
The utility model discloses in, electrically conductive base plate 2 includes first base plate 21, the second base plate 22 that the separation set up and sets up on first base plate 21 and second base plate 22 in order to carry out welded structure 23 with bus bar 210 of photovoltaic lamination spare 200.
Specifically, the soldering structure 23 includes a first tab 231 formed by bending vertically downward from one side of the first substrate 21 and a second tab 232 formed by bending vertically downward from one side of the second substrate 22, the first tab 231 and the second tab 232 are parallel and opposite to each other, and a relief gap 233 is formed therebetween, further, the bus bar 210 connected to the back surface of the photovoltaic laminate 200 is electrically connected to the first tab 231, the bus bar 210 connected to the front surface of the photovoltaic laminate 200 is electrically connected to the second tab 232, and the first substrate 21 and the second substrate 22 realize conduction/cutoff of current between the first substrate 21 and the second substrate 22 through a diode connected therebetween.
The photovoltaic junction box 100 further includes a snap member 3 housed within the case 1 for positioning a welding position of the welding structure 23 and the bus bar 210. The clamping member 3 includes a base 31, a clamping hole 32 provided on the base 31 for accommodating the welding structure 23 and the bus bar 210, and an elastic member 33 for positioning the welding structure 23 and the bus bar 210 accommodated in the clamping hole 32.
The base 31 is located in the abdicating gap 233, in a preferred embodiment of the present invention, the base 31 and the bottom shell 11 are separately arranged, and the bottom shell 11 is provided with an accommodating portion (not numbered) for accommodating the base 31, the base 31 penetrates through the bottom shell 11 through the accommodating portion and is accommodated in the accommodating space 12; further, the bottom of the base 31 is further provided with a positioning structure 311, and the base 31 can be fixed on the photovoltaic laminate 200 through the positioning structure 311, and then the positioning between the photovoltaic junction box 100 and the photovoltaic laminate 200 is realized through the base 31. Preferably, the positioning structure 311 is foam cotton. It should be noted that the present invention is exemplified by only using the base 31 and the bottom shell 11 as separate bodies, and in other embodiments of the present invention, the base 31 may be integrated with the bottom shell 11.
The joint hole 32 sets up on base 31 upper portion, and during the busbar 210 runs through base 31 and stretches into joint hole 32 the utility model discloses a preferred embodiment, base 31's lower part still was equipped with the via hole 34 that sets up with joint hole 32 intercommunication, during busbar 210 passes through via hole 34 grafting entering joint hole 32 to be connected with the welded structure 23 of acceping in joint hole 31.
Preferably, the inner wall of at least one side of the via hole 34 is an inclined guide surface 341, so that the bottom width of the via hole 34 is greater than the top width of the via hole 34, and the bus bar 210 is conveniently inserted into the via hole 34 along the inclined guide surface 341 and further enters the clamping hole 32, thereby realizing the matching with the welding structure 23.
The elastic member 33 is connected to the upper portion of the base 31, the elastic member 33 extends into the clamping hole 32 and supports the bus bar 210 extending into the clamping hole 32 on the welding structure 23 accommodated in the clamping hole 32, and the welding position of the bus bar 210 and the welding structure 23 is further positioned.
Preferably, elastic component 33 is the elastic steel sheet of connection on base 31 upper portion, and elastic component 33 stretches into in the joint hole 32 after buckling to support the busbar 210 that will stretch into in the joint hole 32 under the effect of self elastic force and hold the surface at welded structure 23, make things convenient for the welding position between busbar 210 and the welded structure 23.
In a preferred embodiment of the present invention, the joint holes 32 are disposed in one-to-one correspondence with the first soldering terminal 231 and the second soldering terminal 232, i.e., the joint holes 32 are disposed with 2 pieces at the same time, and the first soldering terminal 231 and the second soldering terminal 232 can be respectively inserted into the 2 joint holes 32 to fix the fixing positions of the first soldering terminal 231 and the second soldering terminal 232. Further, the elastic members 33 and the through holes 34 are respectively in one-to-one correspondence with the clamping holes 32, that is, in this embodiment, the bus bar 210 connected to the back of the photovoltaic laminate 200 and the bus bar 210 connected to the front of the photovoltaic laminate 200 enter the two clamping holes 32 through the two through holes 34, and further, the two bus bars 210 extending into the two clamping holes 32 are clamped with the first soldering terminal 231 and the second soldering terminal 232 through the two elastic members 33, so that the bus bar 210 and the first soldering terminal 231 as well as the bus bar 210 and the second soldering terminal 232 are conveniently welded, and the problem of insufficient soldering caused by the change of the limiting positions between the bus bar 210 and the first soldering terminal 231 and between the bus bar 210 and the second soldering terminal 232 in the welding process is further avoided.
When using the utility model discloses a photovoltaic terminal box 100, at first will connect at the busbar 210 at the photovoltaic lamination spare 200 back and connect in the positive busbar 210 of photovoltaic lamination spare 200 insert 2 joint holes 32 through 2 via holes 34 respectively, the base 31 is through being located the location structure 311 adhesion between 2 joint holes 32 on photovoltaic lamination spare 200.
Then, the bottom case 11 assembled with the lead substrate 2 is assembled with the base 31, so that the base 31 enters the bottom case 11 through the accommodating portion arranged on the bottom case 11, the first soldering lug 231 and the second soldering lug 232 are respectively inserted into the clamping hole 32, at this time, the elastic member 33 arranged in the clamping hole 32 is respectively clamped with the bus bar 210 connected to the back of the photovoltaic laminate 200 and the first soldering lug 231 under the action of self elastic force, and the bus bar 210 connected to the front of the photovoltaic laminate 200 is clamped with the second soldering lug 232.
Finally, the bus bar 210 connected to the back surface of the photovoltaic laminate 200 is welded to the first tab 231 by a welding device (not shown), and the bus bar 210 connected to the front surface of the photovoltaic laminate 200 is welded to the second tab 232, thereby completing the assembly of the photovoltaic junction box 100 and the photovoltaic laminate 200.
Referring to fig. 6, the present invention further provides a photovoltaic module 300, which includes a photovoltaic laminate 200 and a junction box connected to the photovoltaic laminate 200, wherein the junction box is the aforementioned photovoltaic junction box 100, and further, the photovoltaic module 300 can be connected to other photovoltaic modules 300 or led out electric energy through a connector on the photovoltaic junction box 100, so as to finally realize the conversion from the optical energy to the electric energy of the photovoltaic module 300.
It should be noted that the photovoltaic laminate 200 may be a single-glass photovoltaic laminate or a dual-glass photovoltaic laminate, that is, the specific structure of the photovoltaic laminate 200 may be designed according to the prior art or the actual situation, and the photovoltaic laminate 200 is not described in detail herein.
To sum up, the utility model discloses a photovoltaic terminal box 100 can carry out effectual joint to welded structure 23 and busbar 210 through setting up joint component 3, and welding position between further fixed-position welded structure 23 and the busbar 210 has made things convenient for the welding between welded structure 23 and the busbar 210, has effectively reduced/avoided the emergence of rosin joint problem between welded structure 23 and the busbar 210 simultaneously.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A photovoltaic junction box comprises a shell and a conductive substrate accommodated in the shell, wherein the conductive substrate is provided with a welding structure which is welded with a bus bar of a photovoltaic lamination piece, and the photovoltaic junction box is characterized in that: photovoltaic terminal box is still including acceping the joint component in the casing, the joint component has and is used for acceping welded structure's joint hole, the busbar runs through the joint component and stretch into in the joint hole with welded structure joint location, and injectd welded structure with the welding position of busbar.
2. The photovoltaic junction box of claim 1, wherein: the joint component includes the base, the joint hole sets up on the base, just the joint hole is provided with 2 simultaneously.
3. The photovoltaic junction box of claim 2, wherein: the joint component is still including being connected the elastic component on base upper portion, the elastic component with the joint hole corresponds the setting, just the elastic component part stretches into and corresponds the setting downthehole the joint.
4. The photovoltaic junction box of claim 2, wherein: still be equipped with on the base and be used for acceping the via hole that the busbar passes through, the via hole with the joint hole corresponds the setting, just the via hole with correspond the setting joint hole intercommunication.
5. The photovoltaic junction box of claim 4, wherein: the via hole is provided with an inclined guide surface, and the width of the bottom of the via hole is larger than the width of the top of the via hole.
6. The photovoltaic junction box of claim 2, wherein: the bottom of base is equipped with location structure, just location structure is located two between the joint hole.
7. The photovoltaic junction box of claim 1, wherein: the conductive substrate comprises a first substrate and a second substrate, and the welding structure comprises a first welding sheet arranged on the first substrate and a second welding sheet arranged on the second substrate.
8. The photovoltaic junction box of claim 7, wherein: the first soldering lug is formed by vertically bending the first substrate downwards, and the second soldering lug is formed by vertically bending the second substrate downwards.
9. The photovoltaic junction box of claim 1, wherein: the casing includes that drain pan and lock are in roof on the drain pan, the roof with the connection can be dismantled to the drain pan, the joint component with the casing components of a whole that can function independently sets up, just be equipped with on the drain pan and be used for acceping the portion of acceping of joint component.
10. A photovoltaic module comprising a photovoltaic laminate and a junction box attached to the photovoltaic laminate, characterized in that: the junction box is the photovoltaic junction box as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023029056.XU CN213817690U (en) | 2020-12-16 | 2020-12-16 | Photovoltaic junction box and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023029056.XU CN213817690U (en) | 2020-12-16 | 2020-12-16 | Photovoltaic junction box and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213817690U true CN213817690U (en) | 2021-07-27 |
Family
ID=76946397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023029056.XU Active CN213817690U (en) | 2020-12-16 | 2020-12-16 | Photovoltaic junction box and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213817690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799525A (en) * | 2022-05-28 | 2022-07-29 | 苏州快可光伏电子股份有限公司 | Photovoltaic module bus bar and junction box rapid welding process and photovoltaic module |
| AU2022291656B1 (en) * | 2022-09-30 | 2023-11-23 | Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
| US12100776B2 (en) | 2022-09-30 | 2024-09-24 | Zhejiang Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
-
2020
- 2020-12-16 CN CN202023029056.XU patent/CN213817690U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799525A (en) * | 2022-05-28 | 2022-07-29 | 苏州快可光伏电子股份有限公司 | Photovoltaic module bus bar and junction box rapid welding process and photovoltaic module |
| AU2022291656B1 (en) * | 2022-09-30 | 2023-11-23 | Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
| US12100776B2 (en) | 2022-09-30 | 2024-09-24 | Zhejiang Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213817690U (en) | Photovoltaic junction box and photovoltaic module | |
| KR100996957B1 (en) | Mechanical Fastener For Coupling To Electrical Terminals Of Battery Modules And Method For Coupling To Electrical Terminals | |
| CN103413852B (en) | The solar junction box of card welding end minor structure | |
| CN201927619U (en) | Wiring box used for photovoltaic component | |
| CN112994611A (en) | Low-cost large-current split type photovoltaic module junction box | |
| CN204408263U (en) | A kind of solar battery connecting box | |
| CN216288752U (en) | Wall-hanging energy memory | |
| CN214898431U (en) | Resistance welding diode module and junction box | |
| CN216773239U (en) | Axial diode photovoltaic junction box | |
| CN214900789U (en) | Split type terminal box of solar cell easy to assemble | |
| CN201515029U (en) | Wiring module for building integrated photovoltaic system | |
| CN214411439U (en) | Battery module and electric equipment | |
| CN211531059U (en) | Photovoltaic module junction box convenient to install bus bar | |
| CN219227545U (en) | Three-split photovoltaic wiring device for double-glass assembly | |
| CN210490795U (en) | Junction box for photovoltaic module | |
| CN213693620U (en) | Non-glue-pouring three-split photovoltaic junction box | |
| CN203368398U (en) | Solar junction box with welded terminal structure | |
| CN101931184A (en) | Wiring module of photovoltaic integrated system of building | |
| CN216250713U (en) | Split type photovoltaic terminal box | |
| CN216750217U (en) | Electricity core installing support | |
| CN213043648U (en) | Photovoltaic terminal box and three-part photovoltaic wiring assembly | |
| CN211062731U (en) | Silk screen device for series welding of solar cells | |
| CN212115264U (en) | MWT subassembly terminal box | |
| CN210745078U (en) | Solar photovoltaic module junction box | |
| CN221466752U (en) | Battery module with FFC signal acquisition module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |