An intelligent fire-proof MC4 connector for photovoltaic special purpose includes a connecting head and a parent head, which are provided with insulating material stamens. Its features are as follows: a fire-proof mechanism and a guide strip are also included; the stamens are set as two-segment structures with fixed internal cavity, and the fire-proof mechanism is set in the cavity, and the guide strips in each section of the structure are connected by a fire-proof mechanism. 2. The photovoltaic intelligent fire-proof MC4 joint described in Fig. 1 is characterized by: the fire-proof mechanism includes a guide plate, a spring, a force bar and a high temperature thrust device. The guide bars of each section of the mechanism are respectively connected with a guide plate through a spring, and each guide plate is connected by a relative top contact of the spring. A force bar is clamped on each spring, and an absolute force bar is arranged between the force bars. High temperature thrust device with edge material. 3. According to claim 2, the photovoltaic intelligent fire-proof MC4 joint is characterized in that the high temperature thrust device is a bellows filled with mercury liquid. 4. The intelligent fire-proof MC4 connector for photovoltaic special purpose described in Fig. 1 is characterized in that the insertion is fixed to a threaded insertion. 5. The photovoltaic intelligent fire-proof MC4 joint described in the Fig. 1 is characterized in that the two-stage structure is a cylindrical structure.
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