Integrated thermolator convenient to install

Abstract

The utility model discloses an integrated thermolator convenient to install, which comprises a shell assembly and a thermoregulation assembly arranged in the shell assembly, the thermoregulation assembly comprises an electronic thermoregulation element and a mechanical thermoregulation element, and the shell assembly comprises an upper shell; the upper shell comprises a first convex shell part, and a second convex shell part and an auxiliary shell part which are adjacent to the first convex shell part; a first cavity is defined in the first convex shell part, the electronic temperature adjusting element is axially arranged in the first cavity, the electronic temperature adjusting element at least comprises a first valve, and the first cavity is divided into a first front guide chamber and a first rear guide chamber from top to bottom by the first valve; a second cavity is defined in the second convex shell part, the mechanical temperature adjusting element is axially arranged in the second cavity, the mechanical temperature adjusting element comprises a second valve, and the second cavity is divided into a second front guide chamber and a second rear guide chamber in the vertical direction through the second valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine cooling system, concretely relates to an integrated thermostat convenient to install. BACKGROUND

[0002] In the cooling system of the engine, the thermostat (also often called the thermostat) as the key component of the thermal management module, connects the water pump, and plays a crucial control role to the cooling liquid flow path.

[0003] The thermostat in the prior art usually includes an electronic thermostat and a mechanical thermostat, the electronic thermostat can work cooperatively with other control systems of the engine, realizes more refined thermal management strategy, improves the fuel economy and emission performance of the engine, and while setting the mechanical thermostat can control one flow path in the cooling system alone, realizes the efficiency and accuracy of thermal management, and still maintains work when the electronic control system fails, provides basic cooling protection for the engine.

[0004] However, the thermostat shell in the prior art in order to be able to integrate multiple cooling liquid pipe mouths and multiple thermostat elements, causes the height of the shell to be too large in the vertical direction, causes the installation of the thermostat element to be extremely inconvenient, and after the cooling liquid in the cooling system enters the thermostat shell through multiple cooling liquid pipe mouths, needs to be worked by the water pump to enter the circulation again, the cooling liquid is usually directly merged into the cavity where the thermostat element is located, causes the cooling liquid of different temperatures to be mixed unevenly, thereby affecting the action opening of the thermostat. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies existing in the prior art, the purpose of the utility model is to provide an integrated thermostat convenient to install.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] An integrated thermostat convenient to install, comprising:

[0008] A shell assembly and a thermostat assembly arranged in the shell assembly, the thermostat assembly comprising an electronic thermostat element and a mechanical thermostat element, and the shell assembly comprising an upper shell;

[0009] The upper shell comprises a first convex shell part, a second convex shell part adjacent to the first convex shell part and a sub-shell part;

[0010] The first convex shell part defines a first cavity, the electronic thermostat element is arranged axially in the first cavity, and the electronic thermostat element at least comprises a first valve, the first valve divides the first cavity into a first front chamber and a first rear chamber;

[0011] The second convex shell portion defines a second chamber in the second convex shell portion, the mechanical temperature regulating element is arranged in the second chamber in an axial direction, and the mechanical temperature regulating element comprises a second valve, the second valve divides the second chamber into a second front pilot chamber and a second rear pilot chamber in an up-down direction;

[0012] The auxiliary shell portion extends in a radial direction of the first chamber, and the auxiliary shell portion defines a water passage communicated with the first rear pilot chamber, in a projection direction, the first convex shell portion has a center line M passing through a center axis L of the electronic temperature regulating element, the second convex shell portion and the auxiliary shell portion are arranged on two sides of the center line M and are arranged close to the center line M, and the auxiliary shell portion extends in a direction of the center line M.

[0013] Further, the first convex shell portion is provided with a radiator return water pipe opening communicated with the first front pilot chamber, the second convex shell portion is provided with a heater feeding pipe opening communicated with the second front pilot chamber, and the auxiliary shell portion is provided with a heater return flow pipe opening communicated with the water passage, through the above improvements, the radiator return water pipe opening is arranged on the first convex shell portion, and the first front pilot chamber and the first rear pilot chamber are communicated or separated by the first valve plate inside the first convex shell portion, the heater feeding pipe opening is arranged on the second convex shell portion, and the second front pilot chamber and the second rear pilot chamber are controlled by the second valve plate inside the second convex shell portion, and the heater return flow pipe opening is arranged on the auxiliary shell portion and is communicated with the water passage, so as to realize the regulation and control of the water passage inside the temperature regulator.

[0014] Further, the radiator return water pipe opening is arranged at the top of the first convex shell portion, the heater feeding pipe opening is arranged at the top of the second convex shell portion, and the heater return flow pipe opening is arranged at the end of the extension direction of the auxiliary shell portion, through the above improvements, the temperature of the radiator and the heater is controlled by the cooperation of the radiator return water pipe opening, the heater feeding pipe opening and the heater return flow pipe opening, so as to ensure the service life.

[0015] Further, the radiator return water pipe opening, the heater feeding pipe opening and the heater return flow pipe opening are arranged in parallel in a projection direction and are arranged to extend in a horizontal direction, through the above improvements, the width of the entire temperature regulator in the projection direction is greatly reduced, so as to reduce the volume of the entire temperature regulator, thereby greatly improving the convenience in the installation process.

[0016] Further, the heater feeding pipe opening and the radiator return water pipe opening are arranged at a same height, and the auxiliary shell portion is arranged lower than the heater feeding pipe opening and the radiator return water pipe opening, through the above improvements, the height of the entire temperature regulator is maintained at a suitable height, so as to further reduce the volume of the entire temperature regulator, thereby ensuring the convenience in the installation.

[0017] Further, the radiator backwater pipe orifice and the heater feeding pipe orifice are arranged in opposite directions, and / or the heater backflow pipe orifice and the heater feeding pipe orifice are arranged in the same direction, so as to ensure the width of the temperature regulator and avoid the excessive size of the temperature regulator.

[0018] Further, the electronic temperature regulating element comprises an electric connecting member, a first expansion member arranged on the first valve, and an electric heating guide rod connected between the electric connecting member and the first expansion member, the lower part of the first expansion member is provided with a first baffle, the first baffle and the first valve are provided with a first spring, the first rear guide chamber is downwardly extended and provided with a first frame, the first frame is provided with a mounting gap, and the first baffle is clamped on the mounting gap, so as to control the temperature of the first expansion member by the electric connecting member, drive the electric heating guide rod to move, and force the first valve to slide up and down, so as to realize the communication or isolation of the first front guide chamber and the first rear guide chamber, and the first frame and the mounting gap are matched to improve the convenience of the installation of the first baffle.

[0019] Further, the mechanical temperature regulating element comprises a second expansion member arranged on the second valve, and a top rod connected with the second expansion member, and the lower part of the second expansion member is provided with a second baffle, the second baffle and the second valve are provided with a second spring, the second rear guide chamber is formed with a positioning convex part, and the second baffle is formed with a positioning groove for the positioning convex part, so as to control the top rod to move according to the temperature in the second chamber by the second expansion member, force the second valve to slide up and down, realize the communication or isolation of the second front guide chamber and the second rear guide chamber, and the positioning convex part and the positioning groove are matched to improve the convenience of the installation of the second baffle.

[0020] Further, the auxiliary shell part comprises a first section, a second section and a third section arranged in a gradually increasing manner with respect to the extension direction, the heater backflow pipe orifice is arranged at the end of the third section, and the first section and / or the second section at least partially coincide with the second convex shell part in the extension direction, and the third section is relatively protruded from the second convex shell part, so as to buffer the cooling liquid, realize the slow flow function, reduce the impact on the electronic temperature regulating element, and make the cooling liquid more uniform, so as to ensure the action opening of the temperature regulator.

[0021] Further, the top of the second convex shell part is also provided with an engine exhaust pipe port, which is detachably connected to one side of the heater feed pipe port and communicated with the second front guide chamber, and the engine exhaust pipe port and the heater feed pipe port are arranged in parallel and approximately in the same height, so that the engine exhaust pipe port is used for exhaust, and the engine exhaust pipe port and the heater feed pipe port are arranged in parallel and approximately in the same height, further ensuring the volume of the whole thermostat.

[0022] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0023] By dividing the upper shell into a first convex shell part, a second convex shell part adjacent to the first convex shell part and a sub-shell part, and arranging the electronic temperature regulating element in the first convex shell part and the mechanical temperature regulating element in the second convex shell part, the temperature regulating function is realized, and the sub-shell part extends along the radial direction of the first chamber, the first convex shell part has a center line M passing through the central axis L of the electronic temperature regulating element, the second convex shell part and the sub-shell part are arranged on both sides of the center line M and close to the center line M, and the sub-shell part extends along the direction of the center line M, so that the width of the whole thermostat is greatly reduced, the volume of the thermostat is reduced, and the installation convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the utility model;

[0025] Figure 2 It is a whole structure bottom structure schematic view of the utility model;

[0026] Figure 3 It is a structure schematic view of the upper shell of the utility model;

[0027] Figure 4 It is a structure schematic view of the upper shell and the temperature regulating assembly cooperation of the utility model;

[0028] Figure 5 It is a top view of the upper shell of the utility model;

[0029] Figure 6 It is a section view of the water passage of the utility model;

[0030] Figure 7 It is a section view of the temperature regulating assembly of the utility model;

[0031] Figure 8 It is a structure schematic view of the inside of the upper shell of the utility model;

[0032] In the diagram: 1. Shell assembly; 2. Temperature control assembly; 1.1. Electronic temperature control element; 1.2. Mechanical temperature control element; 1.3. Upper shell; 1.4. Lower shell; 2.1. First convex shell portion; 2.2. Second convex shell portion; 2.3. Subshell portion; 3.1. First chamber; 3.2. First valve; 3.3. First front guide chamber; 3.4. First rear guide chamber; 4.1. Second chamber; 4.2. Second valve; 4.3. Second front guide chamber; 4.4. Second rear guide chamber; 5.1. Water passage; 5.2. Central axis L; 5.3. Centerline M; 6. 1. Radiator return water inlet; 6.2. Heater inlet; 6.3. Heater return outlet; 7.1. Electrical connection component; 7.2. First expansion component; 7.3. Heating rod; 7.4. First baffle; 7.5. First spring; 7.6. First frame; 7.7. Mounting notch; 8.1. Second expansion component; 8.2. Push rod; 8.3. Second baffle; 8.4. Second spring; 8.5. Positioning protrusion; 8.6. Positioning groove; 9.1. First section; 9.2. Second section; 9.3. Third section; 9.4. Engine venting inlet; Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0035] like Figures 1-8 As shown, an easy-to-install integrated thermostat includes a housing assembly 1 and a temperature regulating component 2 disposed within the housing assembly 1. The temperature regulating component 2 includes an electronic temperature regulating element 1.1 and a mechanical temperature regulating element 1.2. The housing assembly 1 includes an upper shell 1.3, which includes a first convex shell portion 2.1, a second convex shell portion 2.2 adjacent to the first convex shell portion 2.1, and a sub-shell portion 2.3.

[0036] Specifically, the first convex shell portion 2.1 defines a first chamber 3.1, and the electronic temperature control element 1.1 is axially arranged in the first chamber 3.1. The electronic temperature control element 1.1 includes at least a first valve 3.2. The first valve 3.2 divides the first chamber 3.1 into a first front chamber 3.3 and a first rear chamber 3.4.

[0037] The second convex shell portion 2.2 defines a second chamber 4.1, the mechanical temperature regulating element 1.2 is arranged in the second chamber 4.1 axially, and the mechanical temperature regulating element 1.2 comprises a second valve 4.2, the second valve 4.2 divides the second chamber 4.1 into a second front pilot chamber 4.3 and a second rear pilot chamber 4.4.

[0038] Further, the auxiliary shell portion 2.3 extends along the radial direction of the first chamber 3.1, and the auxiliary shell portion 2.3 defines a water passage 5.1 which communicates with the first rear pilot chamber 3.4, in the projection direction, the first convex shell portion 2.1 has a center line M5.3 which passes through the central axis L5.2 of the electronic temperature regulating element 1.1, the second convex shell portion 2.2 and the auxiliary shell portion 2.3 are arranged on both sides of the center line M5.3 and are arranged close to the center line M5.3, and the auxiliary shell portion 2.3 extends along the direction of the center line M5.3, thereby greatly reducing the width of the entire temperature regulator, reducing the volume of the temperature regulator, and improving the installation convenience.

[0039] As shown in Figures 1-8 Further explanation about the upper shell 1.3 upper pipeline arrangement, the first convex shell portion 2.1 is provided with a radiator return pipe 6.1, the radiator return pipe 6.1 communicates with the first front pilot chamber 3.3, the second convex shell portion 2.2 is provided with a heater feed pipe 6.2, the heater feed pipe 6.2 communicates with the second front pilot chamber 4.3, and the auxiliary shell portion 2.3 is provided with a heater return pipe 6.3, the heater return pipe 6.3 communicates with the water passage 5.1.

[0040] Further, the radiator return pipe 6.1 is arranged at the top of the first convex shell portion 2.1, the heater feed pipe 6.2 is arranged at the top of the second convex shell portion 2.2, and the heater return pipe 6.3 is arranged at the end of the extension direction of the auxiliary shell portion 2.3.

[0041] The radiator return pipe 6.1 is arranged on the first convex shell portion 2.1, and the first valve plate inside the first convex shell portion 2.1 controls the communication or isolation between the first front pilot chamber 3.3 and the first rear pilot chamber 3.4, the heater feed pipe 6.2 is arranged on the second convex shell portion 2.2, and the second valve plate inside the second convex shell portion 2.2 controls the communication or isolation between the second front pilot chamber 4.3 and the second rear pilot chamber 4.4, and the heater return pipe 6.3 is arranged on the auxiliary shell portion 2.3, and the heater return pipe 6.3 communicates with the water passage 5.1, thereby realizing the adjustment and control of the water passage inside the temperature regulator, so as to ensure the temperature control of the radiator and the heater, and ensure the service life.

[0042] As preferred, the radiator return pipe 6.1, the heater feed pipe 6.2 and the heater return pipe 6.3 are arranged in parallel in the projection direction and are arranged to extend in the horizontal direction, thereby greatly reducing the width of the entire temperature regulator in the projection direction, reducing the volume of the entire temperature regulator, and greatly improving the convenience during installation.

[0043] In addition, the heater feed pipe 6.2 and the radiator return pipe 6.1 are arranged at approximately the same height, and the sub-shell portion 2.3 is lower than the heater feed pipe 6.2 and the radiator return pipe 6.1, so that the height of the entire temperature regulator is maintained at a suitable height, thereby further reducing the volume of the entire temperature regulator and ensuring the convenience of installation.

[0044] The extension directions of the radiator return pipe 6.1 and the heater feed pipe 6.2 are arranged to be opposite to each other, and / or the heater return pipe 6.3 and the heater feed pipe 6.2 are arranged in the same direction, thereby ensuring the width of the temperature regulator and avoiding excessive volume of the temperature regulator.

[0045] As shown in Figures 1-8 Further explanation of the shell assembly 1, the upper shell 1.3 is locked to the lower shell 1.4, the lower shell 1.4 is formed with a first communication hole communicating with the first chamber 3.1, a second communication hole communicating with the second chamber 4.1, and a third communication hole communicating with the water passage 5.1, and the first communication hole communicates with the radiator, the second communication hole communicates with the heater, and the third communication hole communicates with the water pump, thereby realizing the circulation of the water circuit inside the entire temperature regulator and ensuring the temperature regulation effect.

[0046] As shown in Figures 1-8 Further explanation of the temperature regulation assembly 2, the electronic temperature regulation element 1.1 includes an electrical connection member 7.1, a first expansion member 7.2 penetrating the first valve 3.2, and an electric heating guide rod 7.3 connected between the electrical connection member 7.1 and the first expansion member 7.2, the lower part of the first expansion member 7.2 is provided with a first baffle 7.4, the first baffle 7.4 and the first valve 3.2 are provided with a first spring 7.5, the first rear guide chamber 3.4 is provided with a first frame 7.6 extending downward, the first frame 7.6 is provided with a mounting gap 7.7, and the first baffle 7.4 is clamped in the mounting gap 7.7.

[0047] The first expansion member 7.2 is temperature-controlled by the electrical connection member 7.1 to drive the electric heating guide rod 7.3 to move and force the first valve 3.2 to slide up and down, thereby realizing the communication or isolation of the first front guide chamber 3.3 and the first rear guide chamber 3.4, and the first frame 7.6 and the mounting gap 7.7 are matched to improve the convenience of installing the first baffle 7.4.

[0048] In addition, the first frame 7.6 extends out of the first chamber 3.1 and is arranged in the first communication hole of the lower shell 1.4, which improves the convenience of connecting the upper shell 1.3 and the lower shell 1.4.

[0049] Further, the mechanical temperature regulating element 1.2 comprises a second expansion member 8.1 penetrating through the second valve 4.2, and a top rod 8.2 connected with the second expansion member 8.1, and the lower part of the second expansion member 8.1 is provided with a second baffle 8.3, and the second baffle 8.3 is provided with a second spring 8.4 between the second baffle 8.3 and the second valve 4.2, and the second expansion member can control the top rod 8.2 to move according to the temperature in the second chamber 4.1, so as to force the second valve 4.2 to slide up and down, so as to realize the communication or isolation between the second front guide chamber 4.3 and the second rear guide chamber 4.4.

[0050] The second rear guide chamber 4.4 is formed with a positioning protrusion 8.5, and the second baffle 8.3 is formed with a positioning groove 8.6 for the positioning protrusion 8.5, and the positioning protrusion 8.5 and the positioning groove 8.6 are matched, which improves the convenience of installing the second baffle 8.3.

[0051] As shown in Figures 1-8 , the auxiliary shell part 2.3 comprises a first section 9.1, a second section 9.2 and a third section 9.3 arranged in a gradually increasing manner along the extending direction thereof, the heater return pipe 6.3 is arranged at the end of the third section 9.3, the first section 9.1 and / or the second section 9.2 at least partially overlaps the second convex shell part 2.2 along the extending direction, and the third section 9.3 extends out of the second convex shell part 2.2, so as to further reduce the volume of the entire temperature regulator.

[0052] In addition, the auxiliary shell part 2.3 comprises a first section 9.1, a second section 9.2 and a third section 9.3 arranged in a gradually increasing manner along the extending direction thereof, which can buffer the cooling liquid, realize the slow flow function, reduce the impact on the electronic temperature regulating element 1.1, and make the cooling liquid more uniform, so as to ensure the action opening of the temperature regulator.

[0053] As shown in Figures 1-8 , in some other embodiments, the top of the second convex shell part 2.2 is further provided with an engine degassing pipe 9.4, which is detachably connected to one side of the heater feeding pipe 6.2 and is communicated with the second front guide chamber 4.3, and the engine degassing pipe 9.4 and the heater feeding pipe 6.2 are arranged in parallel and are arranged in a nearly equal height manner.

[0054] Not only the engine degassing pipe 9.4 can be used for exhaust, but also the engine degassing pipe 9.4 and the heater feeding pipe 6.2 are arranged in parallel and are arranged in a nearly equal height manner, which further ensures the volume of the entire temperature regulator.

[0055] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as the modification is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An integrated thermostat for easy installation, characterized by, The application relates to a shell assembly (1) and a temperature regulating assembly (2) arranged in the shell assembly (1), wherein the temperature regulating assembly (2) comprises an electronic temperature regulating element (1.1) and a mechanical temperature regulating element (1.2), and the shell assembly (1) comprises an upper shell (1.3). The upper shell (1.3) comprises a first convex shell part (2.1), a second convex shell part (2.2) and a sub-shell part (2.3) adjacent to the first convex shell part (2.1). The first convex shell part (2.1) defines a first cavity (3.1) therein, the electronic temperature regulating element (1.1) is arranged axially in the first cavity (3.1), and the electronic temperature regulating element (1.1) comprises at least a first valve (3.2) which divides the first cavity (3.1) into a first front chamber (3.3) and a first rear chamber (3.4) in an up-down direction. The second convex shell part (2.2) defines a second cavity (4.1) therein, the mechanical temperature regulating element (1.2) is arranged axially in the second cavity (4.1), and the mechanical temperature regulating element (1.2) comprises a second valve (4.2) which divides the second cavity (4.1) into a second front chamber (4.3) and a second rear chamber (4.4) in an up-down direction. The sub-shell part (2.3) extends along a radial direction of the first cavity (3.1), and the sub-shell part (2.3) defines a water passage (5.1) which communicates with the first rear chamber (3.4), in a projection direction, the first convex shell part (2.1) has a center line M (5.3) which passes through a central axis L (5.2) of the electronic temperature regulating element (1.1), the second convex shell part (2.2) and the sub-shell part (2.3) are arranged on two sides of the center line M (5.3) and are arranged close to the center line M (5.3), and the sub-shell part (2.3) extends along the direction of the center line M. A radiator return pipe (6.1) is arranged on the first convex shell part (2.1) and communicates with the first front chamber (3.3).

2. The integrated thermostat of claim 1, wherein: A heater feed pipe (6.2) is arranged on the second convex shell part (2.2) and communicates with the second front chamber (4.3). A heater return pipe (6.3) is arranged on the sub-shell part (2.3) and communicates with the water passage (5.1).

3. The integrated temperature regulator convenient to install according to claim 2, wherein: The radiator return pipe (6.1) is arranged at the top of the first convex shell part (2.1), the heater feed pipe (6.2) is arranged at the top of the second convex shell part (2.2), and the heater return pipe (6.3) is arranged at the end of the extension direction of the sub-shell part (2.3). The radiator return pipe (6.1), the heater feed pipe (6.2) and the heater return pipe (6.3) are arranged in parallel in a projection direction and are arranged to extend in a horizontal direction.

4. The integrated thermostat of claim 2, wherein: ​ 5. The integrated thermostat of claim 2, wherein: The radiator return pipe orifice (6.1) and the heater feed pipe orifice (6.2) are arranged in a near-equal height manner, and the auxiliary shell part (2.3) is arranged lower than the heater feed pipe orifice (6.2) and the radiator return pipe orifice (6.1).

6. The integrated thermostat of claim 2, wherein: The radiator return pipe orifice (6.1) and the heater feed pipe orifice (6.2) are arranged in a direction away from each other, and / or the heater return pipe orifice (6.3) and the heater feed pipe orifice (6.2) are arranged in a same direction.

7. The integrated thermostat of claim 1, wherein: The electronic temperature regulating element (1.1) comprises an electric connection member (7.1), a first expansion member (7.2) penetrating the first valve (3.2), and an electric heating guide rod (7.3) connected between the electric connection member (7.1) and the first expansion member (7.2), the lower part of the first expansion member (7.2) is provided with a first baffle (7.4), the first baffle (7.4) and the first valve (3.2) are provided with a first spring (7.5) therebetween, the first rear guide chamber (3.4) is extended downwardly and provided with a first frame (7.6), the first frame (7.6) is provided with a mounting gap (7.7), and the first baffle (7.4) is clamped in the mounting gap (7.7).

8. The integrated thermostat of claim 1, wherein: The mechanical temperature regulating element (1.2) comprises a second expansion member (8.1) penetrating the second valve (4.2), and a top rod (8.2) connected with the second expansion member (8.1), and the lower part of the second expansion member (8.1) is provided with a second baffle (8.3), the second baffle (8.3) and the second valve (4.2) are provided with a second spring (8.4) therebetween, the second rear guide chamber (4.4) is formed with a positioning protrusion (8.5), and the second baffle (8.3) is formed with a positioning slot (8.6) for the positioning protrusion (8.5) to be inserted into.

9. The integrated thermostat of claim 2, wherein: The auxiliary shell part (2.3) comprises a first section (9.1), a second section (9.2) and a third section (9.3) arranged in a gradually increasing manner along the extending direction thereof, the heater return pipe orifice is arranged at the end of the third section (9.3), the first section (9.1) and / or the second section (9.2) at least partially coincide with the second convex shell part (2.2) along the extending direction, and the third section (9.3) extends relative to the second convex shell part (2.2).

10. The integrated thermostat of claim 2, wherein: The top of the second convex shell part (2.2) is further provided with an engine exhaust pipe orifice (9.4), the engine exhaust pipe orifice (9.4) is detachably connected to one side of the heater feed pipe orifice (6.2) and is communicated with the second front guide chamber (4.3), the engine exhaust pipe orifice (9.4) and the heater feed pipe orifice (6.2) are arranged in a near-parallel manner, and the engine exhaust pipe orifice (9.4) and the heater feed pipe orifice (6.2) are arranged in a near-equal height manner.

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