A magnetic sensitive thermostat assembly

Abstract

The present invention discloses a magnetic sensitive thermostat assembly, comprising a housing having a circulation cavity and a magnetic sensitive thermostat arranged in the circulation cavity; the housing comprises a first shell, a small circulation water inlet, a large circulation water inlet and a water outlet; the magnetic sensitive thermostat is used to control the connection or blocking between the large circulation water inlet and the circulation cavity. The magnetic sensitive thermostat assembly provided by the present invention has the following advantages compared with the existing wax type thermostat assembly: 1. The manufacturing process is simple and the control method is simple; 2. The temperature sensing principle of the thermosensitive soft magnet is used to achieve the effect of accurate temperature control, and the sensitivity is high; 3. The risk of paraffin leakage is fundamentally eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of thermal energy control, and in particular to a magnetic sensitive thermostat assembly. Background Art

[0002] The car thermostat assembly is an indispensable part of the car engine cooling system. In the car cooling system, the coolant flows through the large or small circulation by opening and closing the thermostat, ultimately achieving the purpose of rapid engine heating in cold weather or rapid engine heat dissipation in hot weather.

[0003] The thermostat assembly currently used in automobile engines mainly consists of a shell and a wax thermostat set in the shell. The principle of the wax thermostat is that when the cooling temperature is lower than the specified value, the thermostat temperature sensor, refined paraffin, is in a solid state, and the thermostat shell is in a closed state under the action of the spring. When the coolant temperature reaches the specified value, the paraffin begins to melt and gradually becomes liquid, and the volume begins to increase and compresses the rubber tube to shrink. While the rubber tube shrinks, it acts on the push rod with an upward force. The push rod has a downward reverse thrust on the shell to open the valve, and the coolant flows through into the cooling cycle. Usually, the cooling water cycle of the engine includes a large cycle and a small cycle. The start and stop control of the large cycle is carried out by opening and closing the large cycle outlet through the thermostat.

[0004] The above-mentioned wax thermostat assembly has the following problems: 1. The structure is complex and the manufacturing process requirements are high; 2. The wax in the wax thermostat often leaks. If the amount of wax leakage is small, the thermostat is not open enough, the water temperature continues to rise, and the engine will eventually overheat. If the wax leakage is too much, the thermostat will remain in a closed state, the engine will overheat, and in severe cases, the engine will burn out. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a magnetic sensitive thermostat assembly with a simple structure and easy manufacturing, aiming to overcome the defect of paraffin leakage in the wax thermostat.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A magnetic sensitive thermostat assembly comprises a shell having a circulation cavity and a magnetic sensitive thermostat arranged in the circulation cavity; the shell comprises a first shell, a small circulation water inlet, a large circulation water inlet and a water outlet; the magnetic sensitive thermostat is used to control the connection or blocking between the large circulation water inlet and the circulation cavity; the magnetic sensitive thermostat comprises a second shell having a water outlet, a temperature-sensitive magnet component fixedly connected to the second shell, a hard magnet component arranged outside the second shell and a switch component for blocking the water outlet, wherein the temperature-sensitive magnet component and the hard magnet component will eliminate the magnetic effect at a preset temperature, thereby driving the switch component to release the blockage of the water outlet.

[0008] The temperature-sensitive magnet assembly comprises a bracket and a thermosensitive soft magnet disposed on the bracket. The bracket is fixedly connected to the second shell. A flow channel is formed on the top of the thermosensitive soft magnet for coolant to flow into the inner cavity of the second shell.

[0009] The bracket is provided with a positioning step for installing the thermosensitive soft magnet, the middle of the bracket is provided with an avoidance hole, the bottom of the thermosensitive soft magnet is provided with an attraction part, the attraction part passes through the avoidance hole; the bottom surface height of the attraction part is lower than the bottom surface height of the bracket.

[0010] The hard magnet assembly includes a base and a hard magnet arranged on the base. The hard magnet is fixed to the base through a sleeve. The inner cavity of the sleeve is provided with a convex column. The hard magnet is sleeved on the convex column. The sleeve and the base are connected by a buckle.

[0011] The switch assembly includes an outer spring sleeved on the outside of the sleeve, an inner spring arranged in the inner cavity of the second shell, a sealing block, and a push rod; the inner spring is used to push the sealing block to block the water outlet on the second shell; the push rod is used to push the sealing block to release the blockage of the water outlet.

[0012] The push rod includes a rod body, a positioning ring arranged at the bottom of the rod body, a first clamping groove opened on the rod body, and a first clamping ring clamped into the first clamping groove; the first clamping groove is located below the positioning ring, and the base is fixed between the positioning ring and the first clamping ring.

[0013] The push rod also includes a second clamping groove opened on the rod body and a second clamping ring clamped into the second clamping groove, the second clamping ring is arranged in the inner cavity of the second shell and located above the sealing block; the second clamping ring is used to push the sealing block to compress the inner spring.

[0014] The water outlet is opened at the top of the second shell, a limiting protrusion is arranged on the top of the second shell, a third clamping groove is arranged on the top of the rod body, a third clamping ring is clamped in the third clamping groove, and the third clamping ring is located above the limiting protrusion.

[0015] The second shell is arranged between the first shell and the large circulation water inlet part. The first shell, the second shell and the large circulation water inlet part are detachably connected. A first sealing ring is arranged between the first shell and the second shell, and a second sealing ring is arranged between the second shell and the large circulation water inlet part.

[0016] The second shell is provided with at least two first connecting ears, the first shell is provided with threaded fixing columns equal in number to and corresponding to the first connecting ears, the large circulation water inlet is provided with second connecting ears equal in number to and corresponding to the first connecting ears, each first connecting ear is provided with a first fixing hole, each second connecting ear is provided with a second fixing hole, a screw is inserted into the second fixing hole of each second connecting ear, each screw passes through the first fixing hole, and is screwed into the threaded hole of the corresponding threaded fixing column.

[0017] Beneficial effects:

[0018] The present invention provides a magnetic sensitive thermostat assembly, in which a magnetic sensitive thermostat is arranged in a housing. The magnetic sensitive thermostat uses the characteristic that the ferromagnetism of a thermosensitive magnetic material is affected by temperature to control the switch of the thermostat. When the temperature of the coolant is lower than a preset temperature value, the temperature sensitive magnet assembly and the hard magnet assembly are attracted together by magnetic force, the outer spring is in a compressed state, and the sealing assembly blocks the connection between the water outlet and the water inlet. When the temperature of the coolant reaches a preset temperature value, the temperature sensitive magnet assembly and the hard magnet assembly lose the attraction force. Under the action of the outer spring, the hard magnet assembly drives the push rod to move, and the push rod drives the sealing assembly to release the blockage of the water outlet. Thus, the switch of the magnetic sensitive thermostat is automatically controlled according to the temperature of the coolant. It can be seen that the magnetic sensitive thermostat assembly provided by the present invention has the following advantages compared with the existing wax type thermostat assembly: 1. The manufacturing process is simple and the control method is simple; 2. The temperature sensing principle of the thermosensitive soft magnet is used to achieve the effect of accurate temperature control, and the sensitivity is high; 3. The risk of paraffin leakage is fundamentally eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the magnetic sensitive thermostat assembly provided by the present invention.

[0020] Figure 2 This is a schematic assembly diagram of the magnetic sensitive thermostat assembly provided by the present invention.

[0021] Figure 3 A three-dimensional diagram of a magnetic sensitive thermostat in a magnetic sensitive thermostat assembly provided by the present invention.

[0022] Figure 4 An exploded view of the magnetic sensitive thermostat in the magnetic sensitive thermostat assembly provided by the present invention.

[0023] Figure 5 A schematic diagram of the internal structure of the magnetic thermostat in the closed state in the magnetic thermostat assembly provided by the invention.

[0024] Figure 6 A schematic diagram of the internal structure of the magnetic thermostat in the open state in the magnetic thermostat assembly provided by the invention.

[0025] Figure 7 This is a front view of the magnetic sensitive thermostat in the magnetic sensitive thermostat assembly provided by the present invention. DETAILED DESCRIPTION

[0026] The present invention provides a magnetic thermostat assembly. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0027] See also Figure 1-7 A magnetic thermostat assembly includes a housing 1 having a circulation cavity and a magnetic thermostat 2 arranged in the circulation cavity; the housing 1 includes a first housing 11, a small circulation water inlet 12, a large circulation water inlet 13 and a water outlet 14; the magnetic thermostat 2 is used to control the connection or blocking of the large circulation water inlet 14 with the circulation cavity; the magnetic thermostat 2 includes a second housing 21 having a water outlet 24, a temperature-sensitive magnet component 3 fixedly connected to the second housing 21, a hard magnet component 4 arranged outside the second housing 21, and a switch component 5 for blocking the water outlet 24, wherein the temperature-sensitive magnet component 3 and the hard magnet component 4 will eliminate the magnetic force at a preset temperature, driving the switch component 5 to release the blocking of the water outlet 24.

[0028] In one embodiment, see Figure 1 , 2 As shown, the small circulation water inlet 12 is configured as a small circulation water inlet pipe integrally formed with the first shell 11, and the water outlet 14 is configured as a water outlet pipe and is detachably connected to the first shell 11; the water outlet 14 and the first shell 11 are sealed by configuring a third sealing ring 15.3.

[0029] In this embodiment, see Figure 1 , 2 As shown, the second shell 21 is arranged between the first shell 11 and the large circulation water inlet 13, the first shell 11, the second shell 21, and the large circulation water inlet 13 are detachably connected, a first sealing ring 15.1 is arranged between the first shell 11 and the second shell 21, and a second sealing ring 15.2 is arranged between the second shell 21 and the large circulation water inlet 13.

[0030] For further information, see Figure 1 , 2As shown, at least two first connecting ears 17 are provided on the second shell 21, and the first shell 11 is provided with threaded fixing columns 16 whose number is equal to and one-to-one corresponding to the first connecting ears 17, and the large circulation water inlet part 13 is provided with second connecting ears 18 whose number is equal to and one-to-one corresponding to the first connecting ears 17, each first connecting ear 17 is respectively provided with a first fixing hole, and each second connecting ear 18 is respectively provided with a second fixing hole 22, and a screw 19 is respectively inserted into the second fixing hole 22 of each second connecting ear 18, and each screw passes through the first fixing hole and is screwed into the threaded hole of the corresponding threaded fixing column 16.

[0031] The working principle is briefly described as follows: when the engine is working, the coolant enters the circulation cavity from the water outlet pipe, and the coolant transfers heat with the temperature-sensitive magnet assembly 3, in which a thermosensitive soft magnet 31 is provided. If the engine temperature is not high at this time, and the temperature of the coolant is lower than the preset temperature value, that is, lower than the Curie temperature of the thermosensitive soft magnet 31, the temperature-sensitive magnet assembly 3 and the hard magnet assembly 4 are attracted together by magnetic force, and the switch assembly 5 blocks the water outlet 24; at this time, the magnetic thermostat 2 is in a closed state. The coolant cannot flow into the large circulation water inlet 13, but can only flow into the small circulation water inlet 12, so that the engine heats up quickly.

[0032] When the temperature of the coolant reaches the preset temperature value, that is, reaches the Curie temperature of the thermosensitive soft magnet 31, the thermosensitive soft magnet 31 loses its magnetic permeability, the temperature-sensitive magnet assembly 3 and the hard magnet assembly 4 lose their attraction, and the hard magnet assembly 4 drives the switch assembly 5 to release the blockage of the water outlet 24; at this time, the magnetic thermostat 2 is in the open state. The coolant can flow into the large circulation water inlet to form a large circulation, and quickly dissipate heat from the engine.

[0033] When the temperature of the coolant drops below the preset temperature value, the thermosensitive soft magnet 31 recovers its magnetic permeability, the thermosensitive soft magnet 31 and the hard magnet 42 automatically attract each other, and the magnetic thermostat 2 is closed again. Thus, the switch of the magnetic thermostat 2 is automatically controlled according to the temperature of the coolant.

[0034] It can be seen that the magnetic thermostat assembly provided by the present invention has the following advantages compared with the existing wax thermostat assembly: 1. The manufacturing process is simple and the control method is simple; 2. The temperature sensing principle of the thermosensitive soft magnet 31 is used to achieve precise temperature control with high sensitivity; 3. The risk of paraffin leakage is fundamentally eliminated.

[0035] For details, see Figure 4 , 7As shown, the temperature-sensitive magnet assembly 3 includes a bracket 30, a thermosensitive soft magnet 31 arranged on the bracket 30, the bracket 30 is fixedly connected to the second shell 21, and a flow channel 32 is formed on the top of the thermosensitive soft magnet 31 for the coolant to flow into the inner cavity of the second shell 21. In this embodiment, the flow channels 32 are provided with two and symmetrically arranged, each of which is in a semi-arc shape. The coolant enters the inner cavity of the shell through the flow channel 32 and directly contacts the thermosensitive soft magnet 31, so that the coolant can directly transfer heat with the thermosensitive soft magnet 31, achieving the technical effect of precise temperature control; by setting the flow channel 32, on the one hand, the material used for the thermosensitive soft magnet 31 can be reduced, saving costs, and on the other hand, the flow channel 32 is wide, and the coolant flows smoothly without causing blockage.

[0036] The thermosensitive soft magnetic body 31 is mainly composed of thermosensitive metal materials and thermosensitive ferrites. The ferromagnetic material in the thermosensitive soft magnetic body 31 will lose its ferromagnetism and become paramagnetic when the temperature is higher than a certain temperature (the transition temperature is the Curie temperature point). The ferromagnetic material in the thermosensitive soft magnetic body 31 will regain its ferromagnetism when the temperature is lower than a certain temperature (the transition temperature is the Curie temperature point). When the thermosensitive soft magnetic body 31 is ferromagnetic, the thermosensitive soft magnetic body 31 and the hard magnet 42 are attracted to each other under the action of magnetic force. When the thermosensitive soft magnetic body 31 loses its ferromagnetism, the thermosensitive soft magnetic body 31 and the hard magnet 42 cannot have a magnetic attraction between the magnetic force. Those skilled in the art can adjust the proportion of the materials in the thermosensitive soft magnetic body 31 to set the Curie temperature point of the thermosensitive soft magnetic body 31. When the magnetic sensitive thermostat 2 is in the closed state, the coolant enters the flow channel 32 and directly contacts the first magnet, so that the coolant can directly transfer heat with the first magnet, achieving the technical effect of precise temperature control.

[0037] In one embodiment, see Figure 4 , 5 As shown, the bracket 30 is provided with a positioning step 33 for installing the thermosensitive soft magnetic body 31, a avoidance hole 34 is opened in the middle of the bracket 30, and a suction part 35 is provided at the bottom of the thermosensitive soft magnetic body 31, and the suction part 35 passes through the avoidance hole 34; the bottom surface height of the suction part 35 is lower than the bottom surface height of the bracket 30. Through such a configuration, the bottom surface of the suction part 35 can directly contact the temperature-sensitive magnetic assembly 3, preventing the bracket 30 and the temperature-sensitive magnetic assembly 3 from causing adhesion and interference.

[0038] In one embodiment, see Figure 5As shown, the hard magnet assembly 4 includes a base 41 and a hard magnet 42 disposed on the base 41. The material of the hard magnet 42 can be ferrite or neodymium iron boron. The hard magnet 42 is fixed to the base 41 through a sleeve 43. The inner cavity of the sleeve 43 is provided with a convex column 44. In order to ensure the stability of the center of gravity of the hard magnet 42, the hard magnet 42 is set in a cylindrical shape. The hard magnet 42 is sleeved on the convex column 44. The sleeve 43 completely wraps the hard magnet 42 to achieve the positioning of the hard magnet 42. The hard magnet 42 is sleeved on the convex column 44, and the sleeve 43 and the base 41 are snap-connected.

[0039] In one embodiment, a plurality of buckle convex edges 45 are provided on the side wall of the bottom end of the sleeve 43, and a corresponding clamping block 46 is provided on the bottom bracket 41, and the sleeve 43 and the bottom bracket 41 are buckled and connected through the buckle convex edges 45 and the clamping block 46. When assembling, the sleeve 43 only needs to be directly pressed against the upper end of the bottom bracket 41 to complete the connection, which is convenient for assembly and disassembly.

[0040] In one embodiment, see Figure 4-5 As shown, the switch assembly 5 includes an outer spring 52 sleeved on the outside of the sleeve 43, an inner spring 53 arranged in the inner cavity of the second housing 21, a sealing block 54, and a push rod 55; the outer spring 52 is arranged between the thermosensitive soft magnetic body 31 and the bottom bracket 41, and the bottom of the sealing block 54 is provided with a mounting cavity, the bottom end of the inner spring 53 presses against the top of the thermosensitive soft magnetic body 31, and the top end of the inner spring 53 is stuck in the mounting cavity; the inner spring 53 is used to push the sealing block 54 to block the water outlet 24 on the second housing 21; the thermosensitive soft magnetic body 31 and the hard magnetic body 42 are sleeved on the push rod 55, and the push rod 55 is used to push the sealing block 54 to release the blocking of the water outlet 24. When the magnetic thermostat 2 is in the closed state, the inner spring 53 applies elastic force to the sealing block 54, so that the sealing block 54 tightly blocks the water outlet 24 of the second housing 21, and blocks the coolant from flowing from the water outlet 24 into the large circulation water inlet 13.

[0041] In one embodiment, see Figure 4As shown, the push rod 55 includes a rod body 55.4, a positioning ring 64 arranged at the bottom of the rod body 55.4, a first clamping groove 55.1 provided on the rod body 55.4, and a first clamping ring 61 clamped into the first clamping groove 55.1; the first clamping groove 55.1 is located below the positioning ring 64, and the base 41 is fixed between the positioning ring 64 and the first clamping ring 61. In order to make the structure more compact, the base 41 is set to be disc-shaped, and the bottom end of the outer spring 52 presses against the bottom surface of the inner cavity of the base 41. The base 41 is provided with a first through hole 71 for the push rod 55 to pass through, and the first through hole 71 is also the central through hole of the base 41. In actual assembly, after the bottom end of the push rod 55 is inserted into the first through hole 71, the positioning ring 64 is pressed against the upper surface of the base 41, and then the first clamping ring 61 is clamped into the first clamping groove 55.1, so that the base 41 is fixed between the positioning ring 64 and the first clamping ring 61, which is convenient for assembly and disassembly and reliable for fixation.

[0042] In one embodiment, see Figure 4 As shown, in order to reduce the influence of the base 41 on the fluidity of the coolant, a plurality of flow guide grooves in a circumferential array are provided on the base 41 .

[0043] In one embodiment, see Figure 4 As shown, in order to avoid interference between the hard magnet 42 and the positioning ring 64 , the middle part of the second magnet is set as a countersunk through hole 42 . 1 , and an anti-interference gap is formed between the countersunk part of the countersunk through hole and the positioning ring 64 .

[0044] In one embodiment, see Figure 4-6 As shown, the push rod 55 also includes a second clamping groove 55.2 provided on the rod body 55.4 and a second clamping ring 62 clamped into the second clamping groove 55.2. The second clamping ring 62 is arranged in the inner cavity of the second shell and located above the sealing block 54. The second clamping ring 62 is used to push the sealing block 54 to compress the inner spring 53. When the magnetic thermostat 2 is in the open state, under the action of the outer spring 52, the bottom bracket 41 drives the push rod 55 to move in the direction away from the first component, and the second clamping ring 62 also moves with the push rod 55, pushing the sealing block 54 to compress the spring downward, so that the sealing block 54 releases the blockage of the water outlet 24 of the second shell 21. In order to facilitate the close contact between the second clamping ring 62 and the sealing block 54 and reduce the adhesion between the second clamping ring 62 and the upper surface of the sealing block 54, the sealing block 54 is in the shape of a disc, and a circular groove 54.1 for accommodating the second clamping block 46 is provided in the middle thereof.

[0045] In one embodiment, see Figure 5 , 6As shown, the water outlet 24 is opened at the top of the second housing 21, a limiting protrusion 26 is arranged at the top of the second housing 21, a third clamping groove 55.3 is arranged at the top of the rod body 55.4, a third clamping ring 63 is clamped into the third clamping groove 55.3, and the third clamping ring 63 is located above the limiting protrusion 26. By providing the third clamping ring 63, the second housing 21 is limited to move between the first clamping ring 61 and the third clamping ring 63, so as to prevent the second housing 21 from being separated from the push rod 55.

[0046] In order to further ensure the clamping strength, the first clamping ring 61, the second clamping ring 62 and the third clamping ring 63 are preferably E-shaped clamping rings.

[0047] In one embodiment, see Figure 4 As shown, the outer edge of the bracket 30 is fixedly connected with at least two third connecting ears 36, and the bottom of the second shell 21 is provided with connecting columns 23 equal to and corresponding to the third connecting ears 36, each third connecting ear 36 is provided with a first threaded hole, each connecting column 23 is provided with a second threaded hole, and a screw is screwed into the first threaded hole of each third connecting ear 36 from top to bottom, and the top of each screw is screwed into the second threaded hole of the corresponding connecting column 23, and the bracket 30 presses the thermosensitive soft magnetic body 31 at the water inlet 25 of the second shell 21. Preferably, the outer edge of the bracket 30 is fixedly connected with three third connecting ears 36, and the circumferential angle between any two adjacent third connecting ears 36 is 120 degrees; the connecting columns 23 on the shell are correspondingly provided with three; of course, three screws are provided accordingly. Such a setting improves the connection strength between the bracket 30 and the shell, and the thermosensitive soft magnetic block will not tilt.

[0048] In order to avoid the push rod 55, a second through hole 72 is provided in the sleeve 43, a third through hole 73 is provided on the thermosensitive soft magnetic body 31, a fourth through hole 74 is provided on the sealing block 54, and a fifth through hole 75 is provided on the limiting protrusion 26. These through holes are the central through holes of each part.

[0049] The following is a brief description of the assembly process of the magnetic thermostat assembly: first, assemble the magnetic thermostat 2, insert the bottom end of the push rod 55 into the first through hole 71 of the base 41, so that the positioning ring 64 is pressed against the base 41, and the first snap ring 61 is snapped into the first snap groove 55.1; the second magnet is sleeved in the sleeve 43, the push rod 55 passes through the second through hole 72 of the sleeve 43, the sleeve 43 is snap-connected with the base 41, and then the outer spring 52 is placed on the base 41; the bracket 30, the thermal The soft magnet 31, the inner spring 53, and the sealing block 54 are inserted into the push rod 55 in sequence, and the second snap ring 62 is inserted into the second slot 55.2. The push rod 55 passes through the fifth through hole 75 of the limiting protrusion 26. The second housing 21 wraps the inner spring 53, the sealing block 54, and the second snap ring 62. The connecting column 23 on the second housing 21 corresponds to the third connecting ear 36 of the bracket 30 and is screwed. Finally, the third snap ring 63 is inserted into the third slot 55.3 to complete the assembly of the magnetic thermostat 2. The magnetic thermostat 2 is installed in the circulation cavity. After the first sealing ring 15.1 is placed between the first housing 11 and the second housing 21, and the second sealing ring 15.2 is placed between the second housing 21 and the large circulation water inlet 13, the first housing 11 is connected with the second housing 21 and the large circulation water inlet 13 by screws, and the assembly of the magnetic thermostat 2 is completed. It can be seen that the magnetic thermostat assembly has low assembly difficulty and low manufacturing process requirements, and manual assembly can also well ensure production efficiency.

[0050] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A magnetic thermostat assembly, characterized in that: The invention comprises a shell with a circulation cavity and a magnetic sensitive thermostat arranged in the circulation cavity; the shell comprises a first shell, a small circulation water inlet, a large circulation water inlet and a water outlet; the magnetic sensitive thermostat is used to control the connection or blocking of the large circulation water inlet and the circulation cavity; the magnetic sensitive thermostat comprises a second shell with a water outlet, a temperature-sensitive magnet component fixedly connected to the second shell, a hard magnet component arranged outside the second shell and a switch component for blocking the water outlet, the temperature-sensitive magnet component and the hard magnet component will eliminate the magnetic force at a preset temperature, and drive the switch component to release the blocking of the water outlet; the temperature-sensitive magnet component comprises a bracket, a heat-sensitive magnet component arranged on the bracket, and a The thermosensitive soft magnet is a thermosensitive soft magnet, the bracket is fixedly connected to the second shell, the top of the thermosensitive soft magnet is provided with a flow channel for coolant to flow into the inner cavity of the second shell; the bracket is provided with a positioning step for installing the thermosensitive soft magnet, the middle of the bracket is provided with an avoidance hole, the bottom of the thermosensitive soft magnet is provided with a suction part, and the suction part passes through the avoidance hole; the bottom surface height of the suction part is lower than the bottom surface height of the bracket; the hard magnet assembly includes a base and a hard magnet arranged on the base, the hard magnet is fixed to the base through a sleeve, the inner cavity of the sleeve is provided with a convex column, the hard magnet is sleeved on the convex column, and the sleeve and the base are snap-connected.

2. The magnetic thermostat assembly according to claim 1, characterized in that: The switch assembly comprises an outer spring sleeved on the outside of the sleeve, an inner spring arranged in the inner cavity of the second shell, a sealing block, and a push rod; the inner spring is used to push the sealing block to block the water outlet on the second shell; The push rod is used to push the sealing block to release the blockage of the water outlet.

3. The magnetic thermostat assembly according to claim 2, characterized in that: The push rod includes a rod body, a positioning ring arranged at the bottom of the rod body, a first clamping groove opened on the rod body, and a first clamping ring clamped into the first clamping groove; the first clamping groove is located below the positioning ring, and the base is fixed between the positioning ring and the first clamping ring.

4. The magnetic thermostat assembly according to claim 3, characterized in that: The push rod also includes a second clamping groove opened on the rod body and a second clamping ring clamped into the second clamping groove, the second clamping ring is arranged in the inner cavity of the second shell and located above the sealing block; the second clamping ring is used to push the sealing block to compress the inner spring.

5. The magnetic thermostat assembly according to claim 3, characterized in that: The water outlet is opened at the top of the second shell, a limiting protrusion is arranged on the top of the second shell, a third clamping groove is arranged on the top of the rod body, a third clamping ring is clamped in the third clamping groove, and the third clamping ring is located above the limiting protrusion.

6. The magnetic thermostat assembly according to claim 1, characterized in that: The second shell is arranged between the first shell and the large circulation water inlet part. The first shell, the second shell and the large circulation water inlet part are detachably connected. A first sealing ring is arranged between the first shell and the second shell, and a second sealing ring is arranged between the second shell and the large circulation water inlet part.

7. The magnetic thermostat assembly according to claim 6, characterized in that: The second shell is provided with at least two first connecting ears, the first shell is provided with threaded fixing columns of the same number and one-to-one corresponding to the first connecting ears, the large circulation water inlet is provided with second connecting ears of the same number and one-to-one corresponding to the first connecting ears, each first connecting ear is provided with a first fixing hole, each second connecting ear is provided with a second fixing hole, a screw is inserted into the second fixing hole of each second connecting ear, each screw passes through the first fixing hole, and is screwed into the threaded hole of the corresponding threaded fixing column.

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