CN211008849U

CN211008849U - Thermostat assembly

Info

Publication number: CN211008849U
Application number: CN201922247262.9U
Authority: CN
Inventors: 赵彦娟; 黎学军
Original assignee: Chongqing Skill Science And Technology Co ltd
Current assignee: Chongqing Skill Science And Technology Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-14
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a thermostat assembly, which comprises a shell and a thermostat cover, wherein the shell and the thermostat cover are connected to form a circulation channel, a small circulation inlet and a liquid outlet are arranged on the side wall of the shell, a large circulation inlet is arranged in the thermostat cover, a thermostat is arranged in the circulation channel, the thermostat comprises a first valve plate, a first elastic part, a thermostat shell, a second elastic part, a second valve plate and a temperature sensing body, the temperature sensing body comprises a movable rod, a fixed rod and a sealing layer, one end of the fixed rod is fixed on the thermostat shell, the other end is positioned in the movable rod, an expansion layer is wrapped around the fixed rod, a heat conduction layer is arranged between the expansion layer and the movable rod, the first valve plate is fixed at one end of the movable rod close to the large circulation inlet, the first elastic part is sleeved outside the lower end of the movable rod, the second elastic part is sleeved outside the upper end of the movable rod, simple structure and convenient installation.

Description

Thermostat assembly

Technical Field

The utility model relates to a thermostat technical field especially relates to a thermostat assembly.

Background

The thermostat is the coolant liquid that gets into the radiator according to the height automatically regulated of coolant liquid temperature, through the circulation range that changes the coolant liquid to adjust cooling system's heat-sinking capability, guarantee that the engine works at suitable temperature within range, traditional thermostat when controlling big or small circulation, because the temperature of the coolant liquid of accurate detection, there is the problem that big or small circulation worked simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thermostat assembly to solve the thermostat big or small problem that circulates and exist simultaneously in the work.

In order to solve the problem, the utility model provides a thermostat assembly, including casing and thermostat cover, its characterized in that: the thermostat comprises a first valve plate, a first elastic part, a thermostat shell, a second elastic part, a second valve plate and a temperature sensing body, wherein the thermostat comprises a movable rod, a fixed rod and a sealing layer, one end of the fixed rod is fixed on the thermostat shell, the other end of the fixed rod is positioned in the movable rod, an expansion layer is wrapped around the fixed rod, a heat conduction layer is arranged between the expansion layer and the movable rod, the sealing layer seals the opening end of the movable rod, the first valve plate is fixedly connected to one end, close to the large-circulation liquid inlet, of the movable rod, and the first elastic part is sleeved outside the lower end of the movable rod, and the one end butt of first elastic component is on first valve plate, the other end with the thermostat shell is fixed or the butt, the diameter of movable rod upper end is less than the diameter of lower extreme and forms the step face, the second elastic component cover is located the movable rod upper end outside, just the one end of second elastic component with the second valve plate butt, the other end with the step face is fixed or the butt, and the coolant liquid by in little circulation inlet or the major cycle inlet gets into circulation channel, flows through the liquid outlet again.

Further, the liquid outlet is arranged below the small-circulation liquid inlet, and the axis of the liquid outlet and the axis of the small-circulation liquid inlet are parallel in the vertical direction.

Furthermore, the upper end of the shell is provided with a fixing plate, and the fixing plate is provided with a screw hole.

Furthermore, the middle part of casing is followed thermostat central line symmetry is equipped with two fixed journal stirrup, every set up the through-hole that is used for the mounting flange bolt along vertical direction on the fixed journal stirrup.

Furthermore, a groove is formed in the inner wall of the thermostat cover, and the thermostat shell is clamped in the groove.

The thermostat is arranged in the shell and is used for detecting the temperature of cooling liquid in the circulating channel, when the engine starts to work, the temperature of the cooling liquid is lower, and at the moment, the cooling liquid enters the circulating channel from the small circulating liquid inlet and flows out from the liquid outlet, so that the temperature of the engine is rapidly increased; the engine lasts work, and the coolant liquid heats up gradually, and the inflation layer on the dead lever is heated the inflation, and the extrusion movable rod upwards moves, and first valve plate is opened, the second valve plate is closed, and the coolant liquid flows out through the liquid outlet and cools off the engine in getting into the casing from the macrocycle inlet this moment, and big or small circulation can independent work, can better adjust the operating temperature of engine, and a liquid outlet of while macrocycle sharing, simple structure, simple to operate.

Drawings

Fig. 1 is a schematic structural diagram of a thermostat assembly according to the present invention.

FIG. 2 is a top view of the thermostat assembly of FIG. 1.

FIG. 3 is a cross-sectional view of the thermostat assembly A-A of FIG. 2.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-3, the utility model relates to a thermostat assembly includes casing 1 and thermostat cover 2, casing 1 and thermostat cover 2 are connected and are formed circulation channel 3, be equipped with microcirculation inlet 4 and liquid outlet 5 on the casing, be equipped with macrocycle inlet 6 in the thermostat cover 2, liquid outlet 5 set up in microcirculation inlet 3 below, just liquid outlet 5 with the axis of microcirculation inlet 4 is parallel on vertical direction, and the microcirculation during operation, coolant liquid flows out through liquid outlet 4 in getting into circulation channel 3 by microcirculation inlet 4, and the macrocycle during operation, coolant liquid flows out through liquid outlet 4 in getting into circulation channel 3 by macrocycle inlet 6.

The thermostat 7 is arranged in the circulation passage 3, the thermostat 7 comprises a first valve plate 8, a first elastic part 11, a thermostat shell 12, a second elastic part 13, a second valve plate 14 and a temperature sensing body 20, the temperature sensing body 20 comprises a movable rod 9, a fixed rod 21 and a sealing layer 24, one end of the fixed rod 21 is fixed on the thermostat shell 12, the other end of the fixed rod is located inside the movable rod 9, the sealing layer 24 seals the opening end of the movable rod 9, so that a closed space is formed between the inside of the movable rod 9 and the fixed rod 21, the diameter of the upper end of the movable rod 9 is smaller than that of the lower end to form a step surface 10, the movable rod 9 is made of a temperature sensing material, an expansion layer 22 wraps around the fixed rod 21, a heat conduction layer 23 is arranged between the expansion layer 22 and the movable rod 9, when cooling liquid enters the circulation passage, as the temperature of the cooling liquid rises, the temperature of the cooling liquid is transferred to, the expansion layer 22 is expanded by heat, and presses the movable rod 9 to move upwards. The first valve plate 8 is fixedly connected to one end, close to the large-circulation liquid inlet 6, of the movable rod 9 and used for isolating the circulation channel 3 from the large-circulation liquid inlet 6, the first elastic piece 11 is sleeved outside the lower end of the movable rod 9, one end of the first elastic piece 11 abuts against the first valve plate 8, the other end of the first elastic piece 11 is fixed to or abuts against the thermostat shell 12 and used for driving the first valve plate 8 to move and controlling communication and disconnection between the circulation channel 3 and the large-circulation liquid inlet 6; the second elastic part 13 is sleeved on the outer side of the upper end of the movable rod 9, one end of the second elastic part 13 is abutted against the second valve plate 14, and the other end of the second elastic part is fixed to or abutted against the step surface 10 and used for driving the second valve plate 14 to move and controlling the communication and the shutoff of the circulation channel 3 and the small circulation liquid inlet 4. When the engine starts to work, the temperature of the cooling liquid is low, at the moment, the first valve plate 8 is closed, the second valve plate 14 is opened, and the cooling liquid enters the circulating channel 3 from the small-circulating liquid inlet 4 and then flows out from the liquid outlet 5; the engine lasts work, and coolant liquid temperature risees gradually, and the expansion layer 22 on the dead lever 21 is heated the inflation, and extrusion movable rod 9 makes movable rod 9 drive first valve plate 8 and the motion of second valve plate 14, and first valve plate 8 is opened this moment, second valve plate 14 is closed, and the coolant liquid flows out through liquid outlet 5 in 6 entering circulation passage 3 of major cycle inlet.

The upper end of casing 1 is equipped with fixed plate 15, screw 16 has been seted up on fixed plate 15, the middle part of casing 1 is followed thermostat 7 central line symmetry is equipped with two fixed journal stirrup 17, every the through-hole 18 that is used for the mounting flange bolt is seted up along vertical direction on the fixed journal stirrup 17, increases the setting of fixed plate 15 again on the basis of two fixed journal stirrup 17 for casing 1's installation is more stable, firm.

The thermostat cover 2 is provided with a groove 19 on the inner wall, and the thermostat shell 12 is clamped in the groove 19 and used for fixing the thermostat 7.

The utility model relates to a thermostat assembly, when the engine just started working, the coolant temperature was lower, and first elastic component 11 and second elastic component 13 were in the natural state, and first valve plate 8 was closed, second valve plate 14 was opened, and coolant liquid entered circulation channel 3 from small circulation inlet 4 and flowed out through liquid outlet 5 again; when the temperature of the cooling liquid rises gradually, the expansion layer 22 on the fixed rod 21 expands due to heating, the movable rod 9 is extruded, the movable rod 9 moves upwards to drive the first elastic part 11 to move together, the first valve plate 8 moves upwards under the action of the first elastic part 11 to open the large-circulation liquid inlet 6, the second elastic part 13 moves upwards along with the movable rod to drive the second valve plate 14 to move upwards, when the second valve plate 14 contacts the inner wall of the shell 1, the second elastic part 13 starts to be compressed, the second valve plate 14 is in closer contact with the inner wall of the shell 1 to close the small-circulation liquid inlet 4, and at the moment, the cooling liquid enters the circulation channel 3 from the large-circulation liquid inlet 6 and flows out through the liquid outlet 5; if the engine stops working, the temperature of the cooling liquid is gradually reduced, the expansion layer 22 is gradually retracted along with the temperature reduction, the movable rod 9 is restored to the initial position, the first valve plate 8 is closed at the moment, the cooling liquid enters from the small-circulation liquid inlet 4, and when the engine works again, the large circulation and the small circulation work according to the state to achieve the purpose of isolating the large circulation and the small circulation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. A thermostat assembly comprising a housing (1) and a thermostat cover (2), characterized in that: the thermostat is characterized in that the shell (1) and the thermostat cover (2) are connected to form a circulating channel (3), a small circulating liquid inlet (4) and a liquid outlet (5) are formed in the side wall of the shell (1), a large circulating liquid inlet (6) is formed in the thermostat cover (2), a thermostat (7) is arranged in the circulating channel (3), the thermostat (7) comprises a first valve plate (8), a first elastic piece (11), a thermostat shell (12), a second elastic piece (13), a second valve plate (14) and a temperature sensing body (20), the temperature sensing body comprises a movable rod (9), a fixed rod (21) and a sealing layer (24), one end of the fixed rod (21) is fixed on the thermostat shell (12), the other end of the fixed rod is located inside the movable rod (9), the fixed rod (21) is located inside the movable rod (9), and an expansion layer (22) wraps around the fixed rod (21), the expansion layer (22) and the movable rod (9) are provided with a heat conduction layer (23) therebetween, the sealing layer (24) seals the opening end of the movable rod (9), the first valve plate (8) is fixedly connected with one end of the movable rod (9) close to the large-circulation liquid inlet (6), the first elastic piece (11) is sleeved outside the lower end of the movable rod (9), one end of the first elastic piece (11) is abutted against the first valve plate (8), the other end of the first elastic piece is fixed with or abutted against the thermostat shell (12), the diameter of the upper end of the movable rod (9) is smaller than that of the lower end of the movable rod to form a step surface (10), the second elastic piece (13) is sleeved outside the upper end of the movable rod (9), one end of the second elastic piece (13) is abutted against the second valve plate (14), and the other end of the second elastic piece is fixed with or abutted against the step surface (10), the cooling liquid enters the circulating channel (3) from the small circulating liquid inlet (4) or the large circulating liquid inlet (6) and then flows out from the liquid outlet (5).

2. A thermostat assembly as claimed in claim 1 wherein: the liquid outlet (5) is arranged below the small circulation liquid inlet (4), and the axes of the liquid outlet (5) and the small circulation liquid inlet (4) are parallel in the vertical direction.

3. A thermostat assembly as claimed in claim 1 wherein: the upper end of the shell (1) is provided with a fixing plate (15), and the fixing plate (15) is provided with a screw hole (16).

4. A thermostat assembly as claimed in claim 1 wherein: the middle part of casing (1) is followed thermostat (7) central line symmetry is equipped with two fixed journal stirrup (17), every through-hole (18) that are used for the mounting flange bolt are seted up along vertical direction on fixed journal stirrup (17).

5. A thermostat assembly as claimed in claim 1 wherein: a groove (19) is formed in the inner wall of the thermostat cover (2), and the thermostat shell (12) is clamped in the groove (19).