Sealing structure capable of preventing displacement under pressure and high-pressure connection sealing device

Abstract

The utility model discloses a sealing structure for preventing compression displacement in motor controller installation, which comprises a sealing ring, and the entity thickness L1 of the sealing ring in the X-axis direction is at least twice larger than the distance L2 between one side of a sealing groove and one side of a sealing hole; one side of the limiting protruding block is fixedly connected with one side of the sealing ring, and the limiting protruding block and the sealing ring are jointly and movably embedded into the sealing groove. The first sealing object is a three-phase line copper bar connector, the second sealing object is a motor controller, the improved and optimized sealing ring is applied to the sealing installation process of the three-phase line copper bar connector and the motor controller, and the sealing performance of the three-phase line copper bar connector and the motor controller is improved by optimizing the thickness of the sealing ring and additionally arranging a protruding limiting structure. And the risks of squeezing damage and displacement of the sealing ring in the motor controller mounting process are avoided. Comprising the sealing structure capable of preventing displacement under pressure, and further comprises a first sealing object and a second sealing object, and the second sealing object comprises a sealing hole movably connected with one end of the first sealing object.

Description

Technical Field

[0001] The utility model relates to the technical field of motor controller assembly, in particular to a sealing structure for preventing displacement under pressure and a high-pressure connection sealing device. Background Art

[0002] A sealing ring is an annular elastic element used to prevent fluid (liquid or gas) from leaking from between two mating surfaces. It is usually installed between two stationary or relatively moving parts and achieves a sealing effect by applying a preload or working pressure.

[0003] In industrial production, the connections between different pipelines require good sealing to prevent fluid leakage, such as in chemical plants, oil pipelines, and water treatment facilities. Sealing rings are installed between pipe flanges and fill the tiny gaps between flanges through their own elastic deformation to ensure that fluids do not leak under high pressure or high temperature conditions. In mechanical equipment, such as engines, pumps, and compressors, the seal between internal rotating or moving parts and the housing is also very important. Sealing rings are installed between components such as the cylinder wall and the piston, the rotor and the pump housing to prevent the leakage of lubricating oil or other working media, ensuring the normal operation and efficient performance of the equipment. In the transmission system of hybrid vehicles, the connection between the motor controller and the three-phase copper busbar connector also relies on sealing rings to ensure good electrical connection and waterproof and dustproof effects, and to prevent external environmental factors from affecting internal electronic components.

[0004] Although sealing rings play a significant role in the aforementioned working scenarios, they still have some limitations and potential risks during actual use. In particular, under harsh working conditions such as high pressure, high temperature, and high vibration, the sealing ring may be warped, displaced, or deformed due to the force, thus affecting the sealing effect. For example, when high-pressure fluid passes through, the sealing ring is prone to partial warping or detachment from the sealing groove due to pressure; during high-speed rotation or reciprocating motion, the sealing ring is prone to displacement due to vibration, causing leakage; during frequent opening and closing, the sealing ring is prone to deformation due to repeated pressure, reducing sealing performance; under extreme temperature changes, the sealing ring is prone to lose its original elasticity due to thermal expansion and contraction, resulting in seal failure; during the installation process of the motor controller and the three-phase copper busbar connector of a hybrid vehicle, the weight of the motor controller causes the sealing ring to be compressed, displaced, or damaged, affecting the stability of the electrical connection and the normal operation of the system. Utility Model Content

[0005] In view of the above-mentioned existing technical problems, the present utility model is proposed.

[0006] The utility model aims to provide a sealing structure that prevents displacement under pressure, and its purpose is to solve the problem that the sealing ring is easily damaged or displaced by squeezing due to uneven force, excessive force or sudden force during the cooperation with the sealing object.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a sealing structure for preventing displacement under pressure, comprising a sealing ring, wherein the physical thickness L1 of the sealing ring in the X-axis direction is at least twice the distance L2 between one side of the sealing groove and one side of the sealing hole; and

[0008] A limiting protrusion, one side of the limiting protrusion is fixedly connected to one side of the sealing ring, and the limiting protrusion and the sealing ring are movably embedded in the sealing groove together.

[0009] As a preferred solution of the sealing structure for preventing displacement under pressure of the utility model, it further comprises a sealing groove, which is opened on one side of the first sealing object and surrounds the first sealing object;

[0010] The sealing groove includes a limiting groove provided on one side of the sealing groove protruding in the Y-axis direction.

[0011] As a preferred solution of the sealing structure for preventing displacement under pressure of the present invention, the limiting groove and the sealing groove are arranged to be continuous, and the limiting protrusion is movably embedded in the limiting groove.

[0012] As a preferred solution of the sealing structure for preventing displacement under pressure of the utility model, one end of the limiting protrusion in the Y-axis direction is not higher than one end of the limiting groove in the Y-axis direction.

[0013] As a preferred solution of the sealing structure for preventing pressure displacement of the utility model, the limiting protrusion does not protrude from the sealing groove in the X-axial direction, and there is a distance between the limiting protrusion on both sides of the X-axial direction and the sealing groove on both sides of the X-axial direction.

[0014] As a preferred solution of the sealing structure for preventing displacement under pressure of the utility model, the contact surfaces between the limiting protrusion and the limiting groove are parallel to each other, and the side of the limiting protrusion that does not contact the limiting groove is inclined toward the inside of the limiting groove.

[0015] As a preferred solution of the sealing structure for preventing displacement under pressure of the utility model, multiple layers of lips are provided on both sides of the sealing ring.

[0016] As a preferred solution of the sealing structure for preventing displacement under pressure of the present invention, the cross section of the multi-layer lip in the X-circumferential direction is arc-shaped or broken line-shaped.

[0017] The beneficial effects of the sealing structure for preventing pressure displacement of the present invention are as follows: by optimizing the physical thickness L1 of the sealing ring in the X-axis direction, and adding a limiting protrusion with a single-sided inclined design on the sealing ring and embedding it into a limiting groove larger than the size of the limiting protrusion, it is not only convenient to install the sealing ring firmly and accurately into the sealing groove, and avoid the limiting protrusion from being affected by the force on the sealing ring, but also the sealing ring can be accurately embedded in the sealing hole during the installation process of the sealing ring and the sealing hole, ensuring that the sealing ring can effectively prevent flanging or displacement regardless of whether it is subjected to external force or extrusion force during the installation process with the sealing hole.

[0018] Another object of the present invention is to provide a high-voltage connection sealing device, which aims to solve the problem in the prior art that the multi-layer lip waist-shaped sealing ring is easily squeezed, displaced or damaged during the installation and connection process between the motor controller and the three-phase copper busbar connector.

[0019] In order to solve the above technical problems, the utility model also provides the following technical solutions: a high-pressure connection sealing device, which includes a sealing structure that prevents pressure displacement; and a first sealing object and a second sealing object, the second sealing object including a sealing hole movably connected to one end of the first sealing object.

[0020] As a preferred solution of the high-voltage connection sealing device of the utility model, the first sealing object is a three-phase copper busbar connector, and the second sealing object is a motor controller.

[0021] The beneficial effects of the high-voltage connection sealing device of the present invention are as follows: the modified and optimized sealing ring is applied to the sealing installation process of the three-phase copper bus connector and the motor controller. By optimizing the thickness of the sealing ring and adding a raised limiting structure, the risk of squeezing and displacement of the sealing ring during the installation process of the motor controller can be effectively avoided, thereby achieving good sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is an overall three-dimensional diagram of the sealing structure that prevents pressure displacement in the present invention.

[0024] Figure 2 It is a schematic diagram of the sealing ring in the utility model.

[0025] Figure 3 This is an overall cross-sectional view of the sealing structure for preventing pressure displacement in the present invention when used in both directions.

[0026] Figure 4 It is an enlarged view of the local structure A in the present utility model.

[0027] Figure 5 This is a schematic diagram of the specific structure of the sealing groove in the utility model.

[0028] Figure 6 This is a schematic diagram of the high-pressure connection sealing device in the present utility model.

[0029] Figure 7 This is an overall cross-sectional view of the sealing structure for preventing pressure displacement in the present invention when used in one direction.

[0030] Figure 8 It is an enlarged view of the B local structure in the present utility model.

[0031] Figure 9 This is a schematic diagram of the high-pressure connection sealing device in the present utility model. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] Example 1

[0036] Reference Figures 1 to 4 , which is the first embodiment of the present invention, provides a sealing structure for preventing displacement under pressure, including a sealing ring 100, wherein the physical thickness L1 of the sealing ring 100 in the X-axis direction is at least twice the distance L2 between one side of the sealing groove 301 and one side of the sealing hole 401; and

[0037] The limiting protrusion 200 has one side fixedly connected to one side of the sealing ring 100 , and the limiting protrusion 200 and the sealing ring 100 are movably embedded in the sealing groove 301 together.

[0038] In this embodiment, the sealing ring 100 mainly includes two sets of inner and outer sealing surfaces in the X-axis direction. The sealing ring 100 has two implementation methods. The first implementation method is single-sided sealing, and the second implementation method is double-sided sealing, which depends on the number of sealing objects and the requirements of actual practical scenarios.

[0039] In the first embodiment of the sealing ring 100 , there is only one set of sealing objects, and one side of the sealing groove 301 of the sealing object only contacts one side of the sealing ring 100 to complete the sealing.

[0040] In the second embodiment of the sealing ring 100, there are two groups of sealing objects. One side of the sealing groove 301 of the first group of sealing objects contacts one side of the sealing ring 100, and the other side of the sealing ring 100 contacts one side of the sealing hole 401 of the second group of sealing objects to complete the sealing.

[0041] Preferably, by increasing the thickness of the sealing ring 100 in the X-axis direction, the sealing ring 100 has sufficient elastic deformation margin when under pressure, thereby ensuring that during the installation process, even if it is subjected to a large pressure, the sealing ring 100 will not be over-compressed or squeezed, thereby reducing the risk of displacement or damage of the sealing ring 100; because in the prior art, when the physical thickness L1 of the sealing ring 100 in the X-axis direction is less than 2 times the distance L2 between one side of the sealing groove 301 and one side of the sealing hole 401, the sealing ring 100 is easily squeezed by external force and partially lifted or even detached from the sealing groove 301. However, experiments have shown that the physical thickness L1 of the sealing ring 100 in the X-axis direction is at least greater than 2 times the distance L2 between one side of the sealing groove 301 and one side of the sealing hole 401, which can ensure that the sealing ring 100 can withstand a certain extrusion force. A sealing ring 100 that is too thick not only requires a large depth for the sealing groove 301, but also increases the difficulty during installation. Therefore, in this embodiment, the multiple is preferably more than 2 times.

[0042] Preferably, the limiting protrusion 200 is fixedly connected to the sealing ring 100 to form an integral structure, which prevents the sealing ring 100 from sliding or shifting easily during the installation process.

[0043] Preferably, the limiting protrusion 200 is embedded in the sealing groove 301 to limit the movement of the sealing ring 100 in the X-axis direction. Even when subjected to external pressure or vibration, the limiting protrusion 200 can effectively prevent the sealing ring 100 from being squeezed out or shifted.

[0044] In summary, the utility model provides a sealing structure that prevents pressure displacement. By adding a limiting protrusion on the sealing ring and embedding it into the sealing groove, the physical thickness L1 of the sealing ring in the X-axis direction is at least greater than 2 times the distance L2 between one side of the sealing groove and one side of the sealing hole. This not only facilitates the stable and accurate installation of the sealing ring into the sealing groove, but also enables the sealing ring to be accurately embedded in the sealing hole during the installation process with the sealing hole, ensuring that the sealing ring can effectively prevent flanging or displacement regardless of whether it is subjected to external force or extrusion force during the installation process with the sealing hole.

[0045] Example 2

[0046] Reference Figures 1 to 8 , which is a second embodiment of the present utility model, further comprising a sealing groove 301, the sealing groove 301 being opened on one side of the first sealing object 300, and the sealing groove 301 being surrounded on one side of the first sealing object 300;

[0047] The sealing groove 301 includes a limiting groove 301 a provided on one side of the sealing groove 301 and protruding in the Y-axis direction.

[0048] Preferably, the protruding design of the limiting groove 301 a provides additional support and positioning for the limiting protrusion 200 , thereby preventing the sealing ring 100 from escaping or shifting from the sealing groove 301 when under pressure.

[0049] Furthermore, the limiting groove 301a and the sealing groove 301 are arranged to be continuous, and the limiting protrusion 200 is movably embedded in the limiting groove 301a.

[0050] It should be noted that the through-type setting ensures that the limiting protrusion 200 is embedded in the limiting groove 301a, and the sealing ring 100 fixedly connected to the limiting protrusion 200 can also be smoothly embedded in the sealing groove 301, which not only realizes the installation and positioning function of the limiting protrusion 200 on the sealing ring 100, simplifying the installation process, but also ensures the stability of the sealing ring 100 after installation.

[0051] Furthermore, one end of the limiting protrusion 200 in the Y-axis direction is not higher than one end of the limiting groove 301 a in the Y-axis direction.

[0052] Preferably, the limiting protrusion 200 can be prevented from being easily squeezed and tilted by external force, and the limiting protrusion 200 can be prevented from being pressed and causing the installation displacement of the sealing ring 100.

[0053] Furthermore, the limiting protrusion 200 does not protrude from the sealing groove 301 in the X-axis direction, and there is a gap between the limiting protrusion 200 and the sealing groove 301 on both sides of the X-axis direction.

[0054] Preferably, the limiting protrusion 200 can be prevented from being easily squeezed and lifted up by external force, and the limiting protrusion 200 can be prevented from being compressed and causing the installation displacement of the sealing ring 100. In particular, it can effectively prevent the sealing ring 100 installed in the sealing groove 301 from being subjected to friction and compression during the installation process with the sealing hole 401, thereby causing the installation displacement of the sealing ring 100.

[0055] Furthermore, the contact surfaces between the limiting protrusion 200 and the limiting groove 301 a are parallel to each other, and the side of the limiting protrusion 200 that is not in contact with the limiting groove 301 a is inclined toward the inside of the limiting groove 301 a.

[0056] Preferably, the contact surfaces between the limiting protrusion 200 and the limiting groove 301a are parallel to each other, which helps to provide close contact between the limiting protrusion 200 and the limiting groove 301a. At the same time, the inclined design helps the limiting protrusion 200 provide additional guiding effect when under pressure, preventing the sealing ring 100 from shifting.

[0057] Furthermore, multiple layers of lips 101 are provided on both sides of the sealing ring 100 .

[0058] Preferably, the multi-layer lip design increases the contact area between the sealing ring 100 and the sealed object, thereby improving the sealing performance. Especially in high pressure and high vibration environments, the multi-layer lip can provide a more reliable sealing effect.

[0059] Furthermore, the cross section of the multi-layer lip 101 in the X-circumferential direction is arc-shaped or broken line-shaped.

[0060] Preferably, the arc-shaped or broken-line cross-sectional design enables the multi-layer lip 101 to better fit the surface of the sealing object when under pressure, provides a more uniform sealing pressure distribution, and further improves the sealing effect.

[0061] In summary, the utility model provides a sealing structure that prevents pressure displacement. By optimizing the physical thickness L1 of the sealing ring in the X-axis direction, and adding a limiting protrusion with a single-sided inclined design on the sealing ring and embedding it into a limiting groove larger than the size of the limiting protrusion, it is not only convenient for the sealing ring to be firmly and accurately installed in the sealing groove, and to avoid the limiting protrusion being affected by the force on the sealing ring, but also the sealing ring can be accurately embedded in the sealing hole during the installation process of the sealing ring and the sealing hole, ensuring that the sealing ring can effectively prevent flanging or displacement regardless of whether it is subjected to external force or extrusion force during the installation process with the sealing hole.

[0062] Example 3

[0063] Reference Figure 9This is the third embodiment of the present invention. Based on Embodiments 1 and 2, this embodiment further provides a high-pressure connection sealing device. It includes a first sealing member 300 and a second sealing member 400. The second sealing member 400 includes a sealing hole 401 that is movably connected to one end of the first sealing member 300.

[0064] Furthermore, the first sealed object 300 is a three-phase copper busbar connector, and the second sealed object 400 is a motor controller.

[0065] It should be noted that the two sets of sealing objects in this embodiment can be applied to a variety of different application scenarios, such as: pipeline connection sealing (in industrial production, the connection between different pipelines requires good sealing to prevent fluid leakage. When the two pipeline ends are connected by flanges, a sealing structure of the present invention that prevents pressure displacement can be set between the flanges. Among them, the first sealing object 300 is one of the flanges and has a sealing groove 301, and the second sealing object 400 is the other flange and has a sealing hole 401. The sealing ring 100 is installed between the two flanges, and the limiting protrusion 200 is embedded in the sealing groove 301 of the first flange. , ensuring that the sealing ring 100 will not be displaced or damaged due to pressure when the high-pressure fluid passes through), sealing between mechanical parts (in mechanical equipment, the sealing between the rotating or moving parts inside the engine, pump, etc. and the housing is very important. For example, between the engine piston and the cylinder wall, or between the rotor and the pump housing of the pump, a sealing structure that prevents pressure displacement of the present invention can be used. In this case, the first sealing object 300 can be a cylinder with a sealing groove 301 opened on the cylinder wall, and the second sealing object 400 is a piston or rotor with a corresponding sealing hole 401. By installing the sealing ring 100 between these two parts The sealing structure of the present invention is to prevent the leakage of lubricating oil or working medium, and ensure the normal operation of the equipment. The sealing between the valve core and the valve body is very important when the valve controls the flow of fluid. For example, in a ball valve, the ball acts as the valve core and needs to form a good seal with the valve body. At this time, a sealing groove 301 can be set around the ball, and a sealing hole 401 can be set at the corresponding position of the valve body, using a sealing structure that prevents pressure displacement of the present invention. The limiting protrusion 200 is embedded in the sealing groove 301 of the ball, and the sealing ring 100 is in contact with the sealing hole 401 of the valve body to ensure that a good seal can be maintained even under high pressure conditions. effect, preventing fluid leakage), and container lid sealing (in containers for storing liquids or gases, the seal between the container lid and the container body is essential. For example, in the chemical industry, a good seal is required between the top cover of the storage tank and the tank body. At this time, the first sealing object 300 can be a tank body with a sealing groove 301 provided on its top edge, and the second sealing object 400 is a lid with a sealing hole 401 provided on its bottom. By applying a sealing structure that prevents pressure displacement of the present invention between the two, it can be ensured that even under extreme conditions, the substance in the container can be prevented from leaking, thereby improving safety and environmental protection).

[0066] Preferably, a multi-layer lip waist-shaped sealing method is usually adopted in the three-phase copper busbar connector and the motor controller, and the sealing ring 100 is installed in the sealing groove 301 of the corresponding shape of the three-phase connector, and the sealing hole 401 of the corresponding shape of the motor controller is installed from top to bottom along the Y-axis. The sealing ring 100 is compressed by the sealing hole 401 of the motor controller to achieve compression sealing; in actual use, because the motor controller is heavy, the motor controller is difficult to fix during the installation process, and the electric control sealing hole is easy to squeeze, displace or damage the sealing ring 100 in the installation direction. Therefore, in Examples 1 and 2 of the utility model patent, the three-phase copper busbar connector and the motor controller are preferably the sealing objects of the sealing ring 100.

[0067] In summary, the utility model provides a high-voltage connection sealing device, which applies the modified and optimized sealing ring of Example 1 and Example 2 to the sealing installation process of the three-phase copper bus connector and the motor controller. By optimizing the thickness of the sealing ring and adding a raised limiting structure, it can effectively avoid the risk of squeezing and displacement of the sealing ring during the installation process of the motor controller, thereby achieving good sealing.

[0068] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. 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 solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A sealing structure for preventing displacement under pressure, characterized in that: include, A sealing ring (100), wherein the physical thickness L1 of the sealing ring (100) in the X-axis direction is at least twice the distance L2 between one side of the sealing groove (301) and one side of the sealing hole (401); and A limiting protrusion (200), one side of the limiting protrusion (200) is fixedly connected to one side of the sealing ring (100), and the limiting protrusion (200) and the sealing ring (100) are movably embedded in the sealing groove (301) together.

2. The sealing structure for preventing displacement under pressure according to claim 1, wherein: It also includes a sealing groove (301), the sealing groove (301) is opened on one side of the first sealing object (300), and the sealing groove (301) surrounds one side of the first sealing object (300); The sealing groove (301) comprises a limiting groove (301a) provided on one side of the sealing groove (301) protruding in the Y-axis direction.

3. The sealing structure for preventing displacement under pressure according to claim 2, wherein: The limiting groove (301a) and the sealing groove (301) are arranged to be continuous, and the limiting protrusion (200) is movably embedded in the limiting groove (301a).

4. The sealing structure for preventing displacement under pressure according to claim 2 or 3, characterized in that: One end of the limiting protrusion (200) in the Y-axis direction is not higher than one end of the limiting groove (301a) in the Y-axis direction.

5. The sealing structure for preventing displacement under pressure according to any one of claims 1 to 3, characterized in that: The limiting protrusion (200) is arranged so as not to protrude from the sealing groove (301) in the X-axial direction, and a distance exists between the limiting protrusion (200) and the sealing groove (301) on both sides in the X-axial direction.

6. The sealing structure for preventing displacement under pressure according to claim 2 or 3, characterized in that: The contact surfaces between the limiting protrusion (200) and the limiting groove (301a) are parallel to each other, and the side of the limiting protrusion (200) that is not in contact with the limiting groove (301a) is inclined toward the inside of the limiting groove (301a).

7. The sealing structure for preventing displacement under pressure according to claim 1, wherein: Multi-layer lips (101) are provided on both sides of the sealing ring (100).

8. The sealing structure for preventing displacement under pressure according to claim 7, wherein: The cross section of the multi-layer lip (101) in the X circumferential direction is arc-shaped or broken line-shaped.

9. A high-pressure connection sealing device, characterized in that: A sealing structure for preventing displacement under pressure according to any one of claims 1, 2, 3, 7 and 8; and A first sealing object (300) and a second sealing object (400), wherein the second sealing object (400) comprises a sealing hole (401) movably connected to one end of the first sealing object (300).

10. The high-pressure connection sealing device according to claim 9, characterized in that: The first sealed object (300) is a three-phase copper busbar connector, and the second sealed object (400) is a motor controller.

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