Integral inverter and solar cell module including the same

1. An integral inverter usable with a solar cell module comprising a solar cell panel, the integral inverter comprising:

a terminal connected to the solar cell panel;

a bypass diode electrically connected to the terminal;

an inverter member including a direct current (DC)-alternating current (AC) inverter electrically connected to the bypass diode; and

a case configured to integrate at least one of the terminal and the bypass diode with the DC-AC inverter located therein,

wherein the inverter member includes:

a current sensor configured to sense whether power in the inverter member is normal; and

a DC-DC converter configured to convert direct current power transmitted from the bypass diode, the DC-DC converter including at least three interleaving converters, and

wherein the current sensor and the bypass diode are connected to each other by a circuit pattern on a circuit board.

2. The integral inverter according to claim 1 , wherein at least one of the terminal, the bypass diode and the DC-AC inverter are formed on the circuit board or another circuit board so as to be integrated with each other, or surrounded by a potting member so as to be integrated with each other by the potting member.

3. The integral inverter according to claim 1 , wherein at least one of the terminal and the bypass diode is located on the circuit board or another circuit board.

4. The integral inverter according to claim 1 , wherein the terminal, the bypass diode and the DC-AC inverter are formed on the circuit board or another circuit board and connected to one another.

5. The integral inverter according to claim 1 , further comprising a single AC output cable configured to outwardly transmit alternating current converted by the integral inverter.

6. The integral inverter according to claim 1 , wherein the case receives the terminal, the bypass diode and the DC-AC inverter therein, and

wherein the case includes a first through-hole for connection of a solar cell panel and the terminal, and a second through-hole for connection of the DC-AC inverter and an external element.

7. The integral inverter according to claim 6 , further comprising an inner member located in the case,

wherein the circuit board or another circuit board is provided with the terminal, the bypass diode, and the DC-AC inverter, and

wherein a potting member surrounding the circuit board or the another circuit board, the bypass diode, and the DC-AC inverter are located in the inner member.

8. The integral inverter according to claim 6 , wherein the case includes a first case part and a second case part fixed to each other by a fixing member.

9. The integral inverter according to claim 8 , wherein the fixing member includes at least one of a bonding member, an elastic member, a latch member and a fastening member.

10. The integral inverter according to claim 6 , wherein the second case part includes a first portion and a second portion separated from the first portion.

11. The integral inverter according to claim 1 , wherein the case serves as a ground.

12. The integral inverter according to claim 11 , further comprising at least one of:

a first ground structure configured to ground the case and the circuit board or another circuit board;

a second ground structure configured to ground the case and a frame for fixing of the solar cell panel; and

a third ground structure configured to ground a first case part of the case and a second case part of the case coupled to the first case part.

13. The integral inverter according to claim 12 , wherein at least one of the first to third ground structures is grounded via fastening of a fastening member.