Temperature regulating valve and thermal management system provided with temperature regulating valve

A thermostatic valve, comprising:

• a main valve body,
• an end cap,
• a thermally movable element,
• a first spring, and
• a position-limiting structure,
• wherein the main valve body is provided with a first connecting port portion, a second connecting port portion and a third connecting port portion, the first connecting port portion is provided with a first connecting port passage, the second connecting port portion is provided with a second connecting port passage, and the third connecting port portion is provided with a third connecting port passage, one end of the thermally movable element directly or indirectly abuts against the end cap, and the other end of the thermally movable element directly or indirectly abuts against the first spring, the first spring is in a compressed state,
• wherein the thermostatic valve is further provided with a first valve seat and a second valve seat, the first valve seat is provided with a first valve port, the second valve seat is provided with a second valve port, the first valve port is located between the first connecting port passage and the second connecting port passage, the second valve port is located between the first connecting port passage and the third connecting port passage,
• wherein the thermostatic valve has a first cavity which is located in the end cap, the thermally movable element comprises a valve rod, one end of the valve rod inserts into the end cap, and the first cavity is provided with a hot melt, which is located in an area between the valve rod and a bottom wall corresponding to the first cavity;
• wherein the thermostatic valve comprises a filling state and a first working state, in the filling state, the end of the valve rod maintains a certain distance from the bottom wall corresponding to the first cavity through the hot melt, the first valve port is open, the second valve port is closed, or open by a small degree;
• in the first working state, the first valve port is open, the second valve port is closed;
• a distance between the end of the valve rod and a bottom corresponding to the first cavity in the first working state is less than the distance between the end of the valve rod and the bottom corresponding to the first cavity in the filling state,
• wherein the position-limiting structure limits the hot melt to be located at an initial position, the hot melt is configured to move from the initial position after melting due to heat, which allows the distance between the end of the valve rod and the bottom corresponding to the first cavity in the first working state to be less than the distance between the end of the valve rod and the bottom corresponding to the first cavity in the filling state,
• wherein, the thermostatic valve is further provided with a second cavity, the first cavity and the second cavity are located in the end cap, an inner diameter of the first cavity is less than an inner diameter of the second cavity, a first step portion is formed at a connection between an inner wall corresponding to the first cavity and an inner wall corresponding to the second cavity, the position-limiting structure comprises the first step portion, and the end of the valve rod inserts into the second cavity, an outer diameter of an end portion, inserting into the second cavity, of the valve rod is greater than an inner diameter of the inner wall corresponding to the first cavity, the hot melt is provided in the second cavity;
• in the filling state, the hot melt is located between the end portion of the valve rod and the first step portion, the end portion of the valve rod abuts against the hot melt, the hot melt abuts against the first step portion, the first valve port is open, the second valve port is closed or open by a small degree;
• in the first working state, a part of the hot melt is located in the first cavity, a distance between the end of the valve rod and the first step portion in the first working state is less than the distance between the end of the valve rod and the first step portion in the filling state, the first valve port is open, the second valve port is closed.

A thermostatic valve, comprising:

• a main valve body,
• an end cap,
• a thermally movable element,
• a first spring, and
• a position-limiting structure,
• wherein the main valve body is provided with a first connecting port portion, a second connecting port portion and a third connecting port portion, the first connecting port portion is provided with a first connecting port passage, the second connecting port portion is provided with a second connecting port passage, and the third connecting port portion is provided with a third connecting port passage, one end of the thermally movable element directly or indirectly abuts against the end cap, and the other end of the thermally movable element directly or indirectly abuts against the first spring, the first spring is in a compressed state,
• wherein the thermostatic valve is further provided with a first valve seat and a second valve seat, the first valve seat is provided with a first valve port, the second valve seat is provided with a second valve port, the first valve port is located between the first connecting port passage and the second connecting port passage, the second valve port is located between the first connecting port passage and the third connecting port passage,
• wherein the thermostatic valve has a first cavity which is located in the end cap, the thermally movable element comprises a valve rod, one end of the valve rod inserts into the end cap, and the first cavity is provided with a hot melt, which is located in an area between the valve rod and a bottom wall corresponding to the first cavity;
• wherein the thermostatic valve comprises a filling state and a first working state, in the filling state, the end of the valve rod maintains a certain distance from the bottom wall corresponding to the first cavity through the hot melt, the first valve port is open, the second valve port is closed, or open by a small degree;
• in the first working state, the first valve port is open, the second valve port is closed;
• a distance between the end of the valve rod and a bottom corresponding to the first cavity in the first working state is less than the distance between the end of the valve rod and the bottom corresponding to the first cavity in the filling state,
• wherein the position-limiting structure limits the hot melt to be located at an initial position, the hot melt is configured to move from the initial position after melting due to heat, which allows the distance between the end of the valve rod and the bottom corresponding to the first cavity in the first working state to be less than the distance between the end of the valve rod and the bottom corresponding to the first cavity in the filling state,
• wherein, the position-limiting structure is a position-limiting member, the position-limiting member is in clearance fit or is slidably fitted with an inner wall corresponding to the first cavity, an end portion of the valve rod inserting into the end cap abuts against, is fixed to, or is integrated with the position-limiting member, the inner wall corresponding to the first cavity maintains a certain distance from the inner wall corresponding to the valve rod, the first cavity is provided with the hot melt;
• in the filling state, the hot melt is located between an end portion of the position-limiting member and the bottom wall corresponding to the first cavity, the end portion of the position-limiting member abuts against the hot melt, and the hot melt abuts against the bottom wall corresponding to the first cavity, the first valve port is open, the second valve port is closed, or open by a small opening;
• in the first working state, the first valve port is open, the second valve port is closed;
• a distance between the end portion of the position-limiting member and the bottom corresponding to the first cavity in the first working state is less than the distance between the end portion of the position-limiting member and the bottom corresponding to the first cavity in the filling state,
• wherein, the thermostatic valve further comprises a second cavity which is located in the end cap, the end cap is further provided with a shaft sleeve and a first step portion, an inner diameter of the first step portion is less than an inner diameter of the second cavity, the second cavity is provided with a sealing ring, the sealing ring is in a compressed state, an end of the sealing ring abuts against the shaft sleeve, the shaft sleeve abuts against the first step portion;
• the thermally movable element comprises a first core portion and a body portion, the first core portion corresponds to the first valve seat, when the first core portion abuts against the first valve seat, the first valve port is closed, the end of the valve rod passes through the first core portion and extends out of the body portion and the first core portion, the valve rod comprises a large-diameter portion, an outer diameter of the large-diameter portion is greater than an inner diameter of the first core portion, the large-diameter portion is located outside the body portion and first core portion, the thermally movable element further comprises a protruding portion, the protruding portion is provided at a side of the first core portion toward the end cap, the valve rod passes through the protruding portion, an outer diameter of the protruding portion is less than the inner diameter of the first valve port, the protruding portion inserts into the first valve seat, the first valve port is formed between an inner wall of a portion corresponding to the first valve port of the first valve seat and the outer wall of the protruding portion, the outer diameter of the large-diameter portion is greater than the inner diameter of the protruding portion, when the thermostatic valve is in the filling state, the large-diameter abuts against the protruding portion.