Automobile water chamber and water tank provided with limited position unit

Abstract

The present invention relates to an automobile water chamber and water tank provided with a limiting unit, belonging to the field of automobile water tanks. The water chamber comprises a water chamber body, the water chamber body comprises an inner cavity and a pressing platform, the pressing platform is arranged along the edge of the inner cavity, and a limiting unit is arranged on the edge of the pressing platform close to the inner cavity. The limiting unit comprises a plurality of limiting protrusions, and the plurality of limiting protrusions are arranged in sequence along the extension direction of the pressing platform. The water tank also comprises a main plate, a sealing groove is arranged on the main plate, a plurality of convex points are arranged in the sealing groove, and the plurality of convex points are respectively arranged corresponding to the grooves on the inner wall of the inner cavity. The present invention can identify the situation that the sealing ring is not installed in place during the production process of the water tank, avoid prying open the water chamber at a later time, avoid the slippage of the sealing ring during the use of the water tank, reduce the adverse effects of thermal stress and thermal expansion during the use of the water tank, effectively improve the first-time qualified rate of the water tank production, reduce rework and scrapping, and at the same time reduce the occurrence of water tank leakage problems at the user end, and improve the satisfaction of multiple users.

Description

Technical Field

[0001] The invention belongs to the field of automobile water tanks, and relates to an automobile water chamber and a water tank provided with a limited position unit. Background Art

[0002] like Figure 1 , Figure 2 As shown in the figure, the current automobile water tank is usually composed of a main piece made of aluminum alloy, a sealing ring made of EPDM and a water chamber made of PA66+GF30. A U-shaped sealing groove is set on the main piece. The sealing ring is usually rectangular, in the shape of a Japanese character or in the shape of a Chinese character, and the cross section of the sealing ring is usually elliptical or rectangular. The water chamber is provided with a press table, which is set in the sealing groove of the main piece, and the sealing ring is set between the main piece and the water chamber. The press table is flat and smooth, and fits tightly with the sealing ring.

[0003] Due to the high overall strength of the water chamber, the exposed displacement of the sealing ring has no effect on the straightness of the water chamber press table. In addition, the press table is flat and smooth. When the sealing ring is exposed and displaced, and the water chamber is buckled with the main piece, the height of the press table does not change, and the operator cannot sense the exposed displacement of the sealing ring under the press table. After the main piece is buckled, it is also impossible to identify whether the sealing ring is displaced by fully inspecting the buckling height dimension. Therefore, when the radiator is currently assembled with the sealing ring and the water chamber, it is impossible to quickly and effectively identify the displacement of the sealing ring. It can only be visually inspected and identified by prying open the water chamber after the product leaks. If X-ray flaw detection equipment is used for identification, the equipment cost will be greatly increased, and the production process will be increased, reducing production efficiency.

[0004] When the sealing ring is offset during the water chamber fastening process, the production leak detection usually meets the quality requirements of the inspection. Such a water tank will be installed on the vehicle. During the operation of the vehicle, the water tank water chamber and the sealing ring are subjected to hot and cold shocks, pressure shocks and thermal stress changes. The offset sealing ring is prone to further offset under the induction of these complex factors and cause the core to completely leak. The reasons for this situation are: (1) The existing water chamber press table is a smooth and flat surface, and there is no structure to prevent the sealing ring from moving into the water chamber cavity. If there is a gap between the main plate and the water chamber, the sealing ring is easy to shift to the inside of the water chamber cavity. (2) If Figure 3 As shown, to prevent the seal ring from shifting, the AB section and the CD section of the main plate cross section should theoretically be perpendicular to each other. However, to facilitate demolding, the sealing groove of the main plate is close to the flat hole side and cannot be completely perpendicular to the groove ground. An obtuse angle inclined toward the inner cavity is formed between the AB section and the CD section. At the same time, an obtuse angle is formed at the joint between the water chamber press and the main plate sealing groove due to demolding requirements. This results in insufficient positioning of the seal ring. When the seal ring is exposed and displaced, the main plate and the water chamber are poorly assembled, and the gap increases, the seal ring will slide from position A to position B, causing the seal ring to slide out of the sealing groove along the obtuse angle. (3) As shown in the figure, Figure 4As shown, the matching design of the existing water chamber pressing platform and the main plate makes the compression amount of the entire circle of the sealing ring consistent and the compression ratio the same, and the sliding of the sealing ring cannot be avoided. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a car water chamber and water tank with a limiting unit, which can detect the exposed displacement of the sealing ring when the water chamber is buckled with the main plate, and limit the sealing ring after the water chamber is buckled with the main plate to prevent the sealing ring from slipping out of the sealing groove.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automobile water chamber provided with a limiting unit, comprising a water chamber body, the water chamber body comprising an inner cavity and a press platform, the press platform being arranged along the edge of the inner cavity, a limiting unit being arranged on the edge of the press platform close to one side of the inner cavity, and the limiting unit being arranged around the edge of the press platform.

[0007] Optionally, the limiting unit includes a plurality of limiting protrusions, and the plurality of limiting protrusions are sequentially arranged along the extension direction of the pressing platform.

[0008] Optionally, a groove is provided between adjacent limiting protrusions, the groove is provided on the inner wall of the inner cavity, an extension direction of the groove intersects with an extension direction of the adjacent limiting units, and the groove passes through the pressing platform.

[0009] Optionally, the groove is a gradual groove, and the cross-sectional area of ​​one end of the groove close to the limiting protrusion is larger than the cross-sectional area of ​​the other end of the groove.

[0010] Optionally, the cross-section of the limiting protrusion is triangular, and the end of the triangle is chamfered to achieve a smooth transition to avoid damaging the sealing ring.

[0011] Optionally, the cross-section of the limiting protrusion is a right triangle, one right-angled side of the cross-section of the limiting protrusion is arranged toward the inner cavity, and the other right-angled side of the cross-section of the limiting protrusion is fixedly arranged on the pressing platform.

[0012] A car water tank with a limited position unit includes the car water chamber as described above, and also includes a main plate and a sealing ring. The main plate is provided with a sealing groove, the pressure plate of the water chamber is accommodated in the sealing groove, and the sealing ring is arranged between the sealing groove and the pressure plate of the water chamber.

[0013] A car water tank with a limited position unit includes the car water chamber as described above, and also includes a main plate and a sealing ring, wherein the main plate is provided with a sealing groove, the pressure plate of the water chamber is accommodated in the sealing groove, the sealing ring is arranged between the sealing groove and the pressure plate of the water chamber, and a plurality of protrusions are arranged in the sealing groove, and the plurality of protrusions are respectively arranged corresponding to the grooves on the inner wall of the inner cavity.

[0014] The beneficial effects of the present invention are as follows: (1) a limiting protrusion is provided on the edge of the pressing platform close to the inner cavity. When the water chamber and the main plate are buckled, when the sealing ring is exposed and displaced, the limiting protrusion will interfere with the sealing ring, causing the position of the pressing platform to rise, reminding the operator that the sealing ring is exposed and displaced; (2) after the water chamber and the main plate are buckled, the limiting protrusion can limit the sealing ring to prevent the sealing ring from slipping out of the gap between the water chamber and the main plate. (3) a plurality of grooves are provided on the inner wall of the inner cavity, the grooves pass through the pressing platform, the grooves can reduce the processing deformation of the water chamber, and the compression amount of the sealing ring by the pressing platform at the grooves is small, part of the sealing ring enters the grooves, and the extension direction of the sealing ring can be limited to prevent the sealing ring from sliding and wearing between the water chamber and the main plate. (4) a convex point is provided in the sealing groove, the convex point can limit the sealing ring between the limiting units, and cooperate with the grooves to press part of the sealing ring into the grooves, further improving the limiting effect of the grooves.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 It is a schematic cross-sectional view of a conventional automobile water tank that is not fastened;

[0018] Figure 2 It is a schematic cross-sectional view of a conventional automobile water tank after being fastened;

[0019] Figure 3 is a cross-sectional schematic diagram of the main piece;

[0020] Figure 4 This is an enlarged view of a partial cross section of the rear boss of a conventional automobile water tank;

[0021] Figure 5 is a cross-sectional schematic diagram of the automobile water tank in this embodiment;

[0022] Figure 6 is a schematic diagram of the relative position relationship between the gradient groove and the limiting unit;

[0023] Figure 7 Schematic diagram of the arrangement of the limiting protrusions;

[0024] Figure 8 Schematic diagram of the arrangement of bumps.

[0025] Figure numerals: main piece 1, sealing groove 2, water chamber body 3, pressing platform 4, sealing ring 5, limiting unit 6, gradual groove 7, convex point 8, inner cavity 9. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figures 5 to 8 , is a car water tank provided with a limiting unit, comprising a car water chamber provided with a limiting protrusion, a main plate 1 and a sealing ring 5. The car water chamber comprises a water chamber body 3, the water chamber body 3 comprises an inner cavity 9 and a press plate 4, the press plate 4 is arranged along the edge of the inner cavity 9, and the limiting unit 6 is arranged along the press plate 4. A sealing groove 2 is arranged on the main plate 1, the press plate 4 of the water chamber is accommodated in the sealing groove 2, and the sealing ring 5 is arranged between the sealing groove 2 and the press plate 4. A limiting unit 6 is arranged on the edge of the press plate 4 close to the inner cavity 9, and the limiting unit 6 comprises a plurality of limiting protrusions, and the plurality of limiting protrusions are arranged in sequence along the extension direction of the press plate 4. The cross section of the limiting protrusion is a right triangle, one right-angled side of the cross section of the limiting protrusion is arranged on the press plate 4, and the other right-angled side of the cross section of the limiting protrusion is arranged toward the inner cavity 9.

[0030] When the water chamber is buckled with the main piece 1, when the sealing ring 5 is exposed and displaced, the limiting protrusion will interfere with the sealing ring 5, causing the position of the pressing platform 4 to rise, reminding the operator that the sealing ring 5 is exposed and displaced. After the water chamber is buckled with the main piece 1, the limiting protrusion can limit the sealing ring 5 to prevent the sealing ring 5 from slipping out of the gap between the water chamber and the main piece 1.

[0031] The inner wall of the inner cavity 9 is provided with a plurality of gradual grooves 7 whose cross-sectional area gradually increases along the extension direction thereof. The gradual grooves 7 are arranged between adjacent limiting protrusions. The cross-sectional area of ​​one end of the gradual groove 7 close to the limiting protrusion is larger than the cross-sectional area of ​​the other end thereof. The extension direction of the gradual groove 7 is perpendicular to the extension direction of the adjacent limiting protrusion.

[0032] The gradient groove 7 can reduce the processing deformation of the water chamber, and the compression amount of the sealing ring 5 by the pressing platform 4 at the gradient groove 7 is small. Part of the sealing ring 5 enters the gradient groove 7, which can limit the extension direction of the sealing ring 5 and prevent the sealing ring 5 from sliding and wearing between the water chamber and the main plate 1.

[0033] In this embodiment, a convex point 8 is provided in the sealing groove 2, and a plurality of the convex points 8 are respectively provided in one-to-one correspondence with the gradual grooves 7 on the inner wall of the inner cavity 9. The convex points 8 can limit the sealing ring 5 between the limiting units 6, and cooperate with the gradual grooves 7 to press part of the sealing ring 5 into the gradual grooves 7, further improving the limiting effect of the gradual grooves 7.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A car water chamber provided with a limited position unit, characterized in that: It includes a water chamber body, which includes an inner cavity and a press platform, wherein the press platform is arranged along the edge of the inner cavity, and a limiting unit is arranged on the edge of the press platform close to one side of the inner cavity, and the limiting unit is arranged around the edge of the press platform; the limiting unit includes a plurality of limiting protrusions, and the plurality of limiting protrusions are arranged in sequence along the extension direction of the press platform; a groove is arranged between adjacent limiting protrusions, and the groove is arranged on the inner wall of the inner cavity, and the extension direction of the groove intersects with the extension direction of the adjacent limiting units, and the groove passes through the press platform; the groove is a gradual groove, and the cross-sectional area of ​​one end of the groove close to the limiting protrusion is greater than the cross-sectional area of ​​the other end of the groove; the cross-section of the limiting protrusion is a right-angled triangle, and one right-angled side of the cross-section of the limiting protrusion is arranged toward the inner cavity, and the other right-angled side of the cross-section of the limiting protrusion is fixedly arranged on the press platform.

2. An automobile water tank provided with a limited position unit, characterized in that: It comprises the water chamber as described in claim 1, and also comprises a main plate and a sealing ring, wherein the main plate is provided with a sealing groove, the pressing platform of the water chamber is accommodated in the sealing groove, and the sealing ring is arranged between the sealing groove and the pressing platform of the water chamber.

3. An automobile water tank provided with a limited position unit, characterized in that: It includes the water chamber as described in claim 1, and also includes a main plate and a sealing ring, wherein a sealing groove is arranged on the main plate, the pressure plate of the water chamber is accommodated in the sealing groove, the sealing ring is arranged between the sealing groove and the pressure plate of the water chamber, and a plurality of protrusions are arranged in the sealing groove, and the plurality of protrusions are respectively arranged corresponding to the grooves on the inner wall of the inner cavity.

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