Light thermostat seat

Abstract

The utility model relates to a light thermostat seat. The plastic thermostat comprises a plastic thermostat seat, a plastic thermostat cover and a thermostat, the plastic thermostat seat is further provided with a first water inlet channel, a second water inlet channel, a water outlet channel and a water return channel. The plastic thermostat cover is provided with a large circulation water outlet channel. A first assembly hole is formed in the plastic thermostat seat, a first steel sleeve is arranged in the first assembly through hole, a second assembly hole is further formed in the plastic thermostat seat, an internal thread steel sleeve is arranged in the second assembly hole, a third assembly hole is formed in the plastic thermostat cover, and a second steel sleeve is embedded in the third assembly hole. And a bolt which is screwed and fixed with the internal thread steel sleeve is assembled in the second steel sleeve. The plastic thermostat seat and the plastic thermostat cover are both made of plastic materials, and compared with metal pieces, the plastic thermostat seat and the plastic thermostat cover have the advantages that the difficulty of the production and manufacturing process can be obviously reduced, the production cost is reduced, and the weight is reduced. Steel jackets or internal thread steel jackets are nested in all the assembly holes and used for enhancing the structural strength in contact with the bolts.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of independent thermostat seat, in particular to a kind of light thermostat seat. BACKGROUND

[0002] In the field of automobile engine, in order to control the flow direction of coolant according to engine water temperature, thermostat is used. Thermostat is installed in thermostat seat, and thermostat divides coolant into large and small circulation by opening channel in thermostat seat. Thermostat seat also provides coolant channel for oil cooler, supercharger, cylinder head and other components.

[0003] The existing thermostat seat in the market has the following problems: problem one, some thermostat seats are integrated on cylinder block, which makes the structure of cylinder block complex and casting and processing difficult; problem two, some independent thermostat seats are made of aluminum alloy material, which is relatively heavy and increases the weight of engine; problem three, each channel in thermostat seat needs to be pressed with water pipe joint, which increases processing and pressing cost. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of light thermostat seat; solve the problem of heavy metal independent thermostat seat and complex water pipe joint installation process in prior art.

[0005] The above technical problems of the utility model are mainly solved by the following technical scheme: a kind of light thermostat seat, including plastic thermostat seat and plastic thermostat cover, which are mutually covered and define thermostat containing chamber in the interior, and thermostat is installed in the thermostat containing chamber;First water inlet channel, second water inlet channel, water outlet channel and backwater channel are integrally formed on the plastic thermostat seat, and large circulation water outlet channel is integrally formed on the plastic thermostat cover, and all channels are communicated with the thermostat containing chamber where the thermostat is located;

[0006] A plurality of first assembly holes are formed on the plastic thermostat seat, and first steel sleeve is embedded in the first assembly hole, a plurality of second assembly holes are formed on the plastic thermostat seat, and internally threaded steel sleeve is fixedly embedded in the second assembly hole, a plurality of third assembly holes opposite to the second assembly hole are formed on the plastic thermostat cover, second steel sleeve is embedded in the third assembly hole, and bolt is assembled in the second steel sleeve and is screwed with the internally threaded steel sleeve.

[0007] In the utility model, first water inlet channel is used to communicate with coolant in engine cylinder block, second water inlet channel is used to communicate with EGR cooler, water outlet channel is used to communicate with electronic water pump, and backwater channel is used to connect with oil cooler.

[0008] The plastic thermostat base and the plastic thermostat cover are both made of plastic material, compared with metal parts, can obviously reduce the difficulty of production manufacturing process, reduce production cost, reduce weight and other advantages. The plastic thermostat base and the plastic thermostat cover are fixed and sealed by bolts, in order to realize better sealing, the plastic thermostat base and the plastic thermostat cover need a larger pressing force, but the strength of the plastic material is relatively low compared with the metal parts, in order to avoid the problems such as tooth slipping and assembly hole deformation, the steel sleeve or the internal thread steel sleeve is embedded in all assembly holes, and the structural strength of the contact with the bolt is enhanced.

[0009] Further, a flat matching end face is formed on the plastic thermostat base and located at the opening of the first water inlet channel, the first assembly hole vertically penetrates the matching end face, and a sealing gasket is also embedded on the matching end face and surrounds the outside of the opening of the first water inlet channel. The plastic thermostat base in the utility model needs to be fixed on the engine cylinder by bolts, and the matching end face is the assembly surface of the plastic thermostat base directly connected with the engine cylinder. Since the engine cylinder is made of metal material, in order to ensure the sealing performance of the assembly, the sealing gasket is arranged to prevent liquid leakage.

[0010] Further, the plastic thermostat base 1 is also provided with a first external pipe, a second external pipe and a third external pipe, and the plastic thermostat cover is also provided with a fourth external pipe; a first limiting ring is protruded on the pipe wall of the first external pipe, and the second water inlet channel is formed in the first external pipe; a second limiting ring is protruded on the pipe wall of the second external pipe, and the water outlet channel is formed in the second external pipe; a third limiting ring is protruded on the pipe wall of the third external pipe, and the backwater channel is formed in the third external pipe; and a fourth limiting ring is protruded on the pipe wall of the fourth external pipe, and the large circulation water outlet channel is formed in the fourth external pipe. All the external pipes in the utility model are used for external water pipes, and all the external pipes are integrally formed on the plastic thermostat base or the plastic thermostat cover by injection molding, so that the production manufacturing process is greatly reduced, and the production efficiency can be effectively improved.

[0011] Therefore, the utility model has the following characteristics compared with the prior art: 1. The plastic thermostat base and the plastic thermostat cover in the utility model are both made of plastic material, compared with metal parts, can obviously reduce the difficulty of production manufacturing process, reduce production cost, reduce weight and other advantages; 2. The steel sleeve or the internal thread steel sleeve is embedded in all assembly holes, and the structural strength of the contact with the bolt is enhanced; 3. All the external pipes are integrally formed on the plastic thermostat base or the plastic thermostat cover by injection molding, so that the production manufacturing process is greatly reduced, and the production efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] ATTACHFigure 1 is a structural schematic view of the utility model;

[0013] attached Figure 2 is attached Figure 1 A-A sectional view of the utility model;

[0014] attached Figure 3 is the schematic diagram of the explosion of the utility model;

[0015] attached Figure 4 is the structural schematic view of the display matching end face;

[0016] attached Figure 5 is attached Figure 4 the structural schematic view of the other side. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be further specifically explained below by examples and in conjunction with the drawings.

[0018] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] Example 1: see Figure 1 , Figure 2 , Figure 3 and Figure 5 , a light-weight thermostat seat, comprising a plastic thermostat seat 1 and a plastic thermostat cover 4, both of which are covered with each other and define a thermostat containing chamber inside, and a thermostat 3 is installed in the thermostat containing chamber; the plastic thermostat seat 1 is also integrally formed with a first water inlet channel 11, a second water inlet channel 12, a water outlet channel 13 and a backwater channel 14, the water outlet channel 13 and the backwater channel 14 are communicated with each other, the plastic thermostat cover 4 is integrally formed with a large circulation water outlet channel 15, and all the channels are communicated with the thermostat containing chamber where the thermostat 3 is located;

[0020] The plastic thermostat base 1 is formed with four first assembly holes 81, and the first steel sleeve 8 is embedded in the first assembly hole 81. The plastic thermostat base 1 is also formed with three second assembly holes 71, and the internally threaded steel sleeve 7 is fixedly embedded in the second assembly hole 71. The plastic thermostat cover 4 is formed with three third assembly holes 51 opposite to the second assembly holes 71, and the second steel sleeve 5 is embedded in the third assembly hole. The bolt 6 is assembled in the second steel sleeve 5 and is screwed with the internally threaded steel sleeve 7.

[0021] The first water inlet channel 11 in the embodiment is used for communication with the cooling liquid in the engine cylinder body, the second water inlet channel 12 is used for communication with the EGR cooler, the water outlet channel 13 is used for communication with the electronic water pump, and the water return channel 14 is used for connection with the oil cooler.

[0022] The plastic thermostat base and the plastic thermostat cover in the embodiment are both made of PA66+GF30 material and are made by injection molding process. Compared with metal parts, the production and manufacturing process can be obviously reduced in difficulty, the production cost can be reduced, and the weight can be reduced. The plastic thermostat base and the plastic thermostat cover are fixedly and sealingly connected by the bolt. In order to achieve better sealing, a larger pressing force is required between the plastic thermostat base and the plastic thermostat cover. However, the strength of the plastic material is relatively low compared with the metal part. In order to avoid problems such as slipping teeth and deformation of the assembly hole, a steel sleeve or an internally threaded steel sleeve is embedded in all assembly holes to enhance the structural strength of the contact with the bolt. In actual production, the internally threaded steel sleeve and the second steel sleeve are placed in the injection mold before the plastic thermostat cover is injected, so that the internally threaded steel sleeve, the second steel sleeve and the plastic thermostat cover are reliably fixed. The first steel sleeve and the first assembly hole are assembled by pressing.

[0023] See Figure 4 The plastic thermostat base 1 is formed with a flat matching end face at the opening of the first water inlet channel 11, and the first assembly hole 81 vertically penetrates the matching end face. The matching end face is also inlaid with a sealing gasket 2, and the sealing gasket 2 surrounds the outside of the opening of the first water inlet channel 11. The plastic thermostat base in the embodiment needs to be fixed on the engine cylinder body by the bolt. The matching end face is the assembly surface of the plastic thermostat base directly connected with the engine cylinder body. Since the engine cylinder body is made of metal material, in order to ensure the sealing performance of the assembly, the sealing gasket is arranged to prevent liquid leakage.

[0024] See Figure 1 and Figure 2The first outer connecting pipe 10 is provided with a first limiting ring 101 on the pipe wall, and a second water inlet channel 12 is formed in the interior of the first outer connecting pipe 10; the second outer connecting pipe 20 is provided with a second limiting ring 201 on the pipe wall, and a water outlet channel 13 is formed in the interior of the second outer connecting pipe 20; the third outer connecting pipe 30 is provided with a third limiting ring 301 on the pipe wall, and a backwater channel 14 is formed in the interior of the third outer connecting pipe 30; and the fourth outer connecting pipe 40 is provided with a fourth limiting ring 401 on the pipe wall, and a large-circulation water outlet channel 15 is formed in the interior of the fourth outer connecting pipe 40. All the outer connecting pipes in the embodiment are used for connecting water pipes, and all the outer connecting pipes are integrally formed on the plastic thermostat base or the plastic thermostat cover by injection molding, so that the production and manufacturing process is greatly reduced, and the production efficiency can be effectively improved.

[0025] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the present claims.

Claims

1. A light weight thermostat base characterized by: The application relates to a plastic thermostat base (1) and a plastic thermostat cover (4), which are mutually covered and internally define a thermostat accommodating chamber, wherein a thermostat (3) is arranged in the thermostat accommodating chamber; a first water inlet channel (11), a second water inlet channel (12), a water outlet channel (13) and a backwater channel (14) are integrally formed on the plastic thermostat base (1), and a large circulation water outlet channel (15) is integrally formed on the plastic thermostat cover (4), all the channels being communicated with the thermostat accommodating chamber where the thermostat (3) is arranged. First steel sleeves (8) are embedded in first assembly holes (81) formed on the plastic thermostat base (1), second assembly holes (71) are formed on the plastic thermostat base (1), internally threaded steel sleeves (7) are fixedly embedded in the second assembly holes (71), third assembly holes (51) are formed on the plastic thermostat cover (4) and are opposite to the second assembly holes (71), second steel sleeves (5) are embedded in the third assembly holes, and bolts (6) are assembled in the second steel sleeves (5) and are screwed with the internally threaded steel sleeves (7).

2. The light weight thermostat base of claim 1, wherein: A flat matching end face is formed on the plastic thermostat base (1) and is located at the opening of the first water inlet channel (11), the first assembly holes (81) vertically penetrate the matching end face, and a sealing gasket (2) is embedded on the matching end face and surrounds the outside of the opening of the first water inlet channel (11).

3. A light-weight thermostat base according to claim 1 or 2, characterised in that: First external connecting pipes (10), second external connecting pipes (20) and third external connecting pipes (30) are arranged on the plastic thermostat base (1), and a fourth external connecting pipe (40) is arranged on the plastic thermostat cover (4); first limiting rings (101) are protruded on the pipe walls of the first external connecting pipes (10), the second water inlet channels (12) are formed in the first external connecting pipes (10); second limiting rings (201) are protruded on the pipe walls of the second external connecting pipes (20), the water outlet channels (13) are formed in the second external connecting pipes (20); third limiting rings (301) are protruded on the pipe walls of the third external connecting pipes (30), the backwater channels (14) are formed in the third external connecting pipes (30); fourth limiting rings (401) are protruded on the pipe walls of the fourth external connecting pipes (40), and the large circulation water outlet channels (15) are formed in the fourth external connecting pipes (40).

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