CN201994878U

CN201994878U - Terminal box for photovoltaic subassembly

Info

Publication number: CN201994878U
Application number: CN2010206508946U
Authority: CN
Inventors: 岑春岳
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2011-09-28
Anticipated expiration: 2020-12-10

Abstract

The utility model discloses a terminal box for a photovoltaic subassembly. The terminal box comprises a box body and a box cover and further comprises a copper bridge, a triangle elastic sheet, a diode, a copper joint and a connecter which are arranged in the box body; the triangle elastic sheet and the copper bridge are clamped together in an inside-warping way so as to clamp the elastic sheet on the copper bridge. Due to the special design of the triangle elastic sheet, a bus bar can be clamped firmly, the power consumption of the subassembly is reduced, the utilization rate of solar energy is improved, and the service life of the terminal box is prolonged; the diode is fixed on the copper bridge by the elastic sheet in the copper bridge and the opening groove on the copper bridge, therefore, the contact surface of the copper bridge and the diode is wider, and the contact can be firmer; and the copper joint and the copper bridge are fastened and fixed by a screw. The terminal box is connected with the connector in an embedding way so as to preferably reduce the loss of current and improve the utilization rate of solar energy; and a box cover sealing ring in the box cover is connected in an embedding way, therefore, the sealing ring is preferably fixed in the box cover and the best tightness perfect of the whole box is achieved.

Description

The photovoltaic module terminal box

Technical field

The utility model relates to a kind of photovoltaic interface unit, especially a kind of photovoltaic module terminal box.

Background technology

The structure more complicated of photovoltaic module terminal box is in the market installed also inconvenience, and the inner overall connection resistance of terminal box is big, the loss height.

The utility model content

The utility model technical issues that need to address provide a kind of simple in structure, easy for installation, and contact resistance is little, photovoltaic module terminal box low in energy consumption.

For addressing the above problem, technical solution adopted in the utility model is: a kind of photovoltaic module terminal box, comprise box body and lid, lid and box body adopt and are tightly connected, also comprise the copper bridge, triangle shell fragment, diode, copper sleeve and the connector that are installed in the box body, its intermediate cam shell fragment and copper bridge are clamping, diode is fixed in the groove of opening on the two bronze medal bridges, simultaneously by the bridge inner shrapnel chucking that is fixed on copper bridge inside, copper sleeve one end is fastened on the copper bridge by screw, the other end embeds with connector and is connected, and connector is fixed on the box body.

Also be provided with the lid sealing ring on the described lid, the sealing circle embeds in the seal groove of lid.

Clamping between above-mentioned triangle shell fragment and the copper bridge is wrapped up in the formula clamping in being.

Adopt the beneficial effect that technique scheme produced to be: this novel triangle shell fragment and copper bridge are wrapped up in the formula clamping in using, shell fragment is stuck on the copper bridge, unique triangle elastic piece structure design, can better clamp busbar, reduce the power consumption of assembly, improve solar energy utilization ratio, increase the service life of terminal box; Diode is fixed on the copper bridge diode by the bridge inner shrapnel of copper bridge inside and the fluting on the copper bridge, not only makes the contact-making surface of copper bridge and diode wider, and contact is tighter; Copper sleeve and copper bridge utilize screw tightening to fix.Adopt embedded the connection with connector, better reduce the loss of electric current, improve solar energy utilization rate; The lid sealing ring uses embedded connection in the lid, and sealing ring is fixed in the lid, also makes the sealing of whole box reach best; This new arrangement box overall structure is simple, and spare and accessory parts are few, and is easy for installation, is electrically connected reliably, and the terminal box overall electrical resistance is low, and loss is little, the efficient height.

Description of drawings

Fig. 1 is the utility model embodiment 1 box body structure schematic diagram;

Fig. 2 is the utility model lid structural representation.

Embodiment

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:

As shown in Figure 1, this novel box body 5 and lid 6 of comprising, lid and box body adopt and are tightly connected, this novel copper bridge 1, triangle shell fragment 3, diode 4, copper sleeve 9 and connector 8 that is installed in the box body that also comprise, its intermediate cam shell fragment is connected with the copper bridge: wrap up in the formula snap fit in the use, by stainless elasticity, shell fragment is stuck on the copper bridge; Unique triangle elastic piece structure makes it can better clamp busbar, reduces the power consumption of assembly, improves solar energy utilization ratio, increases the service life of terminal box.The inner bridge inner shrapnel of installing of copper bridge by the elastic force of bridge inner shrapnel and the fluting on the copper bridge, is fixed on the copper bridge diode, and duplicate protection connects; The unique construction of bridge inner shrapnel can make the elastic force of bridge inner shrapnel reach maximization, more can make elastic force keep the longer time, the chucking diode; Fluting on the copper bridge is better fixed diode on the one hand, makes the contact-making surface of copper bridge and diode wider on the other hand, thereby reduces the power consumption of whole box and even assembly; Copper sleeve one end utilizes screw tightening to be fixed on the copper bridge, and the other end embeds with connector and is connected, and better reduces the loss of electric current, improves solar energy utilization rate.

As shown in Figure 2, also be provided with lid sealing ring 7 on the described lid, the sealing circle embeds in the seal groove of lid.Lid sealing ring in the lid adopts embedded connection, sealing ring is fixed in the lid, also make the sealing of whole box reach best, box body also uses embedded the connection with lid simultaneously, fixing of 6 points, lid is coupled in the box body, has both guaranteed the sealing of whole box, improved the service life of whole box again.

This new arrangement box overall structure is simple, and spare and accessory parts are few, and is easy for installation, and maintenance is easy, and whole nothing welding meets environmental protection requirement, and mechanical connection is firm, guarantees its fail safe.Terminal box integral heat sink performance is good, can prevent effectively that the terminal box generation is overheated and cause assembly to have an accident, and has more useful life.

Because the advantage on the junction box structure, can hold 6 copper bridges, corresponding each parts, and quantity can be carried out corresponding modification, when maximizing, quantity can improve the peak power and the electric current of terminal box, make the wiring box can be used for more wider fields, better adapt to the needs in market.

Terminal box is in installation process, because structural advantage is less demanding to employee's operant level, can effectively improve the operating efficiency of assembly producer.The internal electric structure is firm, reduces accident rate, improves the fail safe of photovoltaic module greatly.Under various rugged environments, for example snow greasy weather or the like, can both operate normally.

Claims

1. photovoltaic module terminal box, comprise box body (5) and lid (6), lid and box body adopt and are tightly connected, it is characterized in that: also comprise the copper bridge (1), triangle shell fragment (3), diode (4), copper sleeve (9) and the connector (8) that are installed in the box body, its intermediate cam shell fragment and copper bridge are clamping, diode is fixed in the groove of opening on the two bronze medal bridges, simultaneously by bridge inner shrapnel (2) chucking that is fixed on copper bridge inside, copper sleeve one end is fastened on the copper bridge by screw, the other end embeds with connector and is connected, and connector is fixed on the box body.

2. photovoltaic module terminal box according to claim 1 is characterized in that also being provided with on the lid lid sealing ring (7), and the sealing circle embeds in the seal groove of lid.

3. photovoltaic module terminal box according to claim 1 is characterized in that clamping between triangle shell fragment and the copper bridge wraps up in the formula clamping in being.