Electric heating assembly of thermostat

Abstract

The electric heating assembly of the thermostat comprises a main body, the main body is provided with a liquid conveying opening, a valve is arranged at an inlet of the liquid conveying opening, a support is arranged above the liquid conveying opening, the main body is provided with a guide sleeve and penetrates through the support, a push rod is arranged in the guide sleeve, and the push rod is connected with the valve. A safety cover is arranged at the tail end of the push rod, a counter bore is formed in one end face of the valve, the support, the guide sleeve and the safety cover, a protective sleeve is arranged in the counter bore, a plurality of corrugated parts are arranged on the outer wall of the protective sleeve from top to bottom, bag cavities are formed in the corrugated parts, and inclined supporting arms are arranged at the two ends of the protective sleeve. Cooling liquid is prevented from being in contact with a first spring and a second spring through a protective sleeve, and corrosion is prevented; through the cooperation of the multiple wrinkle parts and the bag cavity, extra elasticity is effectively provided for the first spring and the second spring, the valve is tightly attached to the infusion opening, and the product has the advantages of preventing liquid leakage and prolonging the service life.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an electric heating assembly of a thermostat. Background Art

[0002] The thermostat's electric heating assembly is an automatic temperature control device, usually containing a temperature-sensing component. It opens and closes the flow of coolant by expansion or contraction. This automatically adjusts the amount of water entering the radiator based on the coolant's temperature, changing the coolant's circulation range to adjust the cooling system's heat dissipation capacity.

[0003] At low temperatures, the thermostat closes, allowing the coolant to flow through the small loop without passing through the radiator, accelerating engine warming. When the coolant temperature reaches the set value, the thermostat opens, allowing the coolant to enter the large loop and flow through the radiator for heat dissipation. However, long-term coolant flow through the thermostat's spring gradually erodes it and reduces its elastic potential energy, preventing it from releasing sufficient force to the valve. This prevents the valve from fitting tightly against the valve body's inlet, leading to leakage. Therefore, the applicant has devised a useful design and found a solution to this problem. The technical solution described below was developed in this context. Summary of the Invention

[0004] The purpose of the utility model is to overcome the shortcomings of the electric heating assembly design of the traditional thermostat and provide a product that prevents liquid leakage and increases service life.

[0005] A thermostat electric heating assembly includes a main body, the main body is provided with an infusion port, a valve is provided at the entrance of the infusion port, a bracket is provided above the infusion port, the main body is provided with a guide sleeve and passes through the bracket, a push rod is provided in the guide sleeve, and a safety cover is provided at the end of the push rod, a countersunk hole is provided on one end surface of the valve, bracket, guide sleeve and safety cover, the countersunk hole is provided with a protective sleeve, the outer wall of the protective sleeve is provided with a plurality of wrinkled portions from top to bottom, a sac cavity is provided in the wrinkled portion, inclined support arms are provided at both ends of the protective sleeve, the support arms are provided with a bent portion, the bent portion is provided with a resistance portion and closely fits the inner wall of the countersunk hole.

[0006] Preferably, a first inclined surface is provided at the inlet of the infusion port.

[0007] Preferably, the valve is provided with a second inclined surface corresponding to the first inclined surface, a first spring is provided between the valve and the bracket and is arranged in the protective sleeve so that the first inclined surface and the second inclined surface abut against each other, and an O-ring is provided between the valve and the guide sleeve.

[0008] Preferably, a second spring is provided between the safety cover and the guide sleeve and is arranged in the protective sleeve. Beneficial effects

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The utility model increases a sealing ring between the protective sleeve and the countersunk hole by making the protective sleeve and the abutting portion tightly fit the countersunk hole, thereby preventing the coolant from entering the protective sleeve and effectively protecting the first spring and the second spring from being eroded by the coolant; and, through the cooperation of the multiple wrinkled portions and the sac cavity, effectively increases the additional elasticity of the first spring and the second spring, so that the valve and the infusion port are tightly fitted, thereby extending the service life of the first spring and the second spring, and making the product have the advantages of preventing liquid leakage and increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic side cross-sectional view of the electric heating assembly of a thermostat according to the present invention;

[0012] Figure 2 For this utility model Figure 1 A partial enlarged view of an electric heating assembly of a thermostat;

[0013] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0014] Figure numerals: 1. main body; 2. valve; 3. bracket; 4. guide sleeve; 5. push rod; 6. safety cover; 7. countersunk hole; 8. protective sleeve; 9. O-ring; 11. infusion port; 12. first inclined surface; 21. second inclined surface; 22. first spring; 61. second spring; 81. wrinkled portion; 82. sac cavity; 83. support arm; 84. bending portion; 85. interference portion. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0018] Reference example Figure 1 、 Figure 2 , an electric heating assembly of a thermostat, including a main body 1, the main body 1 is provided with an infusion port 11, a valve 2 is provided at the entrance of the infusion port 11, a bracket 3 is provided above the infusion port 11, the main body 1 is provided with a guide sleeve 4, and passes through the bracket 3, a push rod 5 is provided in the guide sleeve 4, and a safety cover 6 is provided at the end of the push rod 5, the valve 2, the bracket 3, the guide sleeve 4, and one end surface of the safety cover 6 are provided with a countersunk hole 7, the countersunk hole 7 is provided with a protective sleeve 8, the outer wall of the protective sleeve 8 is provided with a plurality of wrinkles 81 from top to bottom, the wrinkle 81 is provided with a sac cavity 82, and both ends of the protective sleeve 8 are provided with inclined support arms 83, and the support arms 83 are provided with a plurality of wrinkles 81 from top to bottom. There is a curved portion 84, which is provided with a contact portion 85 and fits tightly against the inner wall of the countersunk hole 7. The protective sleeve 8 and the contact portion 85 fit tightly against the countersunk hole 7, thereby increasing the sealing ring between the protective sleeve 8 and the countersunk hole 7, preventing the coolant from entering the protective sleeve 8, and effectively protecting the first spring 22 and the second spring 61 from being eroded by the coolant; and, through the cooperation of the multiple wrinkled portions 81 and the sac cavity 82, the first spring 22 and the second spring 61 are effectively increased in elasticity, so that the valve 2 fits tightly against the infusion port 11, thereby extending the service life of the first spring 22 and the second spring 61;

[0019] It is worth mentioning that a first inclined surface 12 is provided at the entrance of the infusion port 11. The first inclined surface 12 guides the valve 2 to shrink and deform in the axial direction, so that the valve 2 fits tightly with the entrance of the infusion port 11, filling the gap between the two and preventing leakage.

[0020] It is worth mentioning that the valve 2 is provided with a second inclined surface 21 corresponding to the first inclined surface 12. A first spring 22 is provided between the valve 2 and the bracket 3 and is arranged in the protective sleeve 8, so that the first inclined surface 12 and the second inclined surface 21 abut against each other. An O-ring 9 is provided between the valve 2 and the guide sleeve 4. The first spring 22 presses the valve 2 against the first inclined surface 12 of the infusion port 11, thereby making the two tightly abut against each other. The O-ring 9 increases the sealing performance of the valve 2 and the guide sleeve 4 to prevent leakage from this point.

[0021] It is worth mentioning that a second spring 61 is provided between the safety cover 6 and the guide sleeve 4 and is arranged in the protective sleeve 8. The second spring 61 cooperates with the first spring 22 to drive the push rod 5 to move.

[0022] The above design scheme can make the product prevent leakage and increase service life.

[0023] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. An electric heating assembly of a thermostat, comprising a main body, wherein the main body (1) is provided with an infusion port (11), a valve (2) is provided at the entrance of the infusion port (11), a bracket (3) is provided above the infusion port (11), the main body (1) is provided with a guide sleeve (4) passing through the bracket (3), a push rod (5) is provided in the guide sleeve (4), and a safety cover (6) is provided at the end of the push rod (5), characterized in that: One end face of the valve (2), bracket (3), guide sleeve (4), and safety cover (6) is provided with a countersunk hole (7), and the countersunk hole (7) is provided with a protective sleeve (8), and the outer wall of the protective sleeve (8) is provided with a plurality of wrinkled portions (81) from top to bottom, and a sac cavity (82) is provided in the wrinkled portion (81), and inclined support arms (83) are provided at both ends of the protective sleeve (8), and the support arms (83) are provided with a bent portion (84), and the bent portion (84) is provided with a resistance portion (85) and is closely fitted to the inner wall of the countersunk hole (7).

2. The electric heating assembly of the thermostat according to claim 1, characterized in that: A first inclined surface (12) is provided at the entrance of the infusion port (11).

3. The electric heating assembly of the thermostat according to claim 1, characterized in that: The valve (2) is provided with a second inclined surface (21) corresponding to the first inclined surface (12); a first spring (22) is provided between the valve (2) and the bracket (3) and is arranged in the protective sleeve (8) so that the first inclined surface (12) and the second inclined surface (21) abut against each other; an O-ring (9) is provided between the valve (2) and the guide sleeve (4).

4. The electric heating assembly of the thermostat according to claim 1, characterized in that: A second spring (61) is provided between the safety cover (6) and the guide sleeve (4), and is arranged in the protective sleeve (8).

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