Sealing ring and controller

Abstract

The embodiment of the utility model relates to the technical field of sealing, and particularly discloses a sealing ring and a controller, the sealing ring comprises a sealing ring body, the sealing ring body comprises a first surface and a second surface opposite to the first surface, and a first convex ring is arranged on the sealing ring body; the first convex ring is formed by extending from the first surface to the direction deviating from the second surface, a sealing groove is defined by the first convex ring, a plurality of mounting holes are formed in the sealing ring body, the mounting holes are formed at intervals, and the mounting holes are located in the groove bottom of the sealing groove; wherein the connecting terminal is inserted into the mounting hole in the direction from the second surface to the first surface, and a part of the terminal socket abuts against the second surface of the sealing ring body. Through the above mode, the use of a fastening nut or a screw for pressing can be reduced, and the sealing ring is directly installed and fixed on the connection terminal through the installation hole.

Description

Technical Field

[0001] This application relates to the field of sealing technology, and in particular to a sealing ring and controller. Background Technology

[0002] Electric vehicles are convenient and fast modes of transportation, and their key structure includes controllers for controlling various electronic components. The motor controller primarily controls the motor's starting, speed regulation, braking, and reversing by changing the wiring of the main circuit or control circuit and altering the resistance values ​​within the circuit according to a predetermined sequence. The motor controller plays a crucial role in drive systems, such as in the control applications of new energy vehicles. In related technologies, sealing rings are typically installed at the interface of the connection terminals, and these rings are pressed tightly against the outer surface of the controller housing using nuts or screws to form a seal.

[0003] In the process of realizing this application, the inventors of this application discovered that in the related technology, the sealing ring needs to be tightened and fixed by an additional fastening nut or screw. When the tightening force of the fastening nut or screw is small, water or foreign objects are likely to enter the controller from the connection terminal, which will directly cause damage to the terminal socket connected to the connection terminal. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a sealing ring and a controller that overcome or at least partially solve the above problems.

[0005] According to one aspect of this application, a sealing ring is provided, comprising a sealing ring body, the sealing ring body including a first surface and a second surface disposed opposite to the first surface, a first protruding ring being provided on the sealing ring body, the first protruding ring extending from the first surface in a direction away from the second surface, the first protruding ring surrounding a sealing groove, and a plurality of mounting holes being provided on the sealing ring body, the plurality of mounting holes being spaced apart, the plurality of mounting holes being located at the bottom of the sealing groove; wherein, a connecting terminal is inserted into the mounting hole in a direction from the second surface toward the first surface, and a portion of the terminal socket abuts against the second surface of the sealing ring body.

[0006] In one alternative embodiment, a protective sleeve extends from the outer periphery of the sealing ring body, the protective sleeve extending from the second surface in a direction away from the first surface, the protective sleeve having a protective cavity, and the terminal socket being located within the protective cavity.

[0007] In one alternative embodiment, the inner wall of the protective cavity is provided with a plurality of sealing protrusions, the plurality of sealing protrusions being spaced apart along the extension direction of the protective sleeve, and the sealing protrusions abutting against the outer wall of the terminal socket.

[0008] In one alternative approach, the connection between the connecting terminal and the mounting hole is an interference fit.

[0009] In one alternative embodiment, a second protruding ring is provided on the sealing ring body, the second protruding ring extending from the second surface in a direction away from the first surface.

[0010] In one alternative embodiment, the connecting terminal includes a plurality of metal pins, the diameter of which is larger than the diameter of the mounting hole.

[0011] In one alternative embodiment, the number of the plurality of mounting holes is 35, 23, or 14.

[0012] In one alternative embodiment, the sealing ring body is made of an elastic material, and the compression ratio of the sealing ring body is 50%.

[0013] According to another aspect of this application, a controller is provided, including a housing, a circuit board, a connector, and a sealing ring as described above. The housing has a receiving cavity and a plug-in port communicating with the receiving cavity. The circuit board is disposed within the receiving cavity. The connector includes a connecting terminal and a terminal socket connected to the connecting terminal. The terminal socket is located within the receiving cavity and disposed on the circuit board. The terminal socket is electrically connected to the circuit board. The connecting terminal is inserted into the mounting hole of the sealing ring from a second surface toward a first surface. A portion of the connecting terminal is located at the plug-in port. A portion of the terminal socket abuts against a second surface of the sealing ring body. A first surface of the sealing ring body abuts against an inner wall of the housing. The sealing ring body is located between the terminal socket and the housing.

[0014] According to another aspect of this application, a controller is provided, including a housing, a circuit board, a connector, and a sealing ring as described above. The housing is provided with a receiving cavity and a plug-in port communicating with the receiving cavity. The circuit board is disposed within the receiving cavity. The connector includes a connecting terminal and a terminal socket connected to the connecting terminal. The terminal socket is located within the receiving cavity and disposed on the circuit board. The terminal socket is electrically connected to the circuit board. The connecting terminal is inserted into the mounting hole of the sealing ring from a second surface toward a first surface. A portion of the connecting terminal is located at the plug-in port. A portion of the terminal socket abuts against a second surface of the sealing ring body. A first surface of the sealing ring body abuts against an inner wall of the housing. A protective sleeve covers the terminal socket, and the side of the protective sleeve facing away from the housing abuts against the circuit board.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment provides a sealing ring body. The sealing ring body includes a first surface and a second surface opposite to the first surface. A first protruding ring is provided on the sealing ring body, extending from the first surface in a direction away from the second surface. The first protruding ring surrounds a sealing groove. The sealing ring body has multiple mounting holes spaced apart and located at the bottom of the sealing groove. A connecting terminal is inserted into the mounting holes from the second surface towards the first surface. A portion of the terminal socket abuts against the second surface of the sealing ring body. This configuration reduces the need for tightening nuts or screws, allowing the sealing ring to be directly installed and fixed to the connecting terminal using the mounting holes. Furthermore, since the sealing ring body is in direct contact with the terminal socket, it can shield against external water or foreign objects, thereby reducing direct damage to the terminal socket caused by external water or foreign objects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a partial structural schematic diagram of the controller according to an embodiment of this application;

[0018] Figure 2 This is a partial sectional view of the controller structure according to an embodiment of this application;

[0019] Figure 3 This is a partial exploded view of the controller structure according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the overall structure of the sealing ring according to an embodiment of this application from an angle;

[0021] Figure 5 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 6 This is another schematic diagram of the overall structure of the sealing ring according to an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the overall structure of another embodiment of the sealing ring of this application from an angle.

[0024] Figure 8 This is a schematic diagram of the overall structure of an embodiment of the sealing ring of this application from another angle;

[0025] Figure 9 This is a schematic diagram of the overall structure of another embodiment of the sealing ring of this application;

[0026] Figure 10 This is a schematic diagram of the overall structure of another embodiment of the sealing ring of this application. Detailed Implementation

[0027] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0030] It should be noted that: In this application, the sealing ring 40 is used as an example in the connector 30 of the controller 1000. It can be understood that the sealing ring 40 in this application can also be used in the connector 30 of other electrical equipment, such as motors, frequency converters, sensors, computers, etc.

[0031] Please see Figure 1 and Figure 2 The controller 1000 includes a housing 10, a circuit board 20, a connector 30, and a sealing ring 40. The circuit board 20 is disposed within the housing 10, the connector 30 is disposed on the circuit board 20 and electrically connected to the circuit board 20, a portion of the connector 30 protrudes from the housing 10, and the sealing ring 40 is disposed on the connector 30. The sealing ring 40 is used to reduce the entry of external water or foreign objects into the housing 10 through the connector 30. The housing 10, circuit board 20, connector 30, and sealing ring 40 are described in detail below.

[0032] For the aforementioned housing 10 and circuit board 20, as Figures 1-3As shown, the housing 10 is provided with a receiving cavity 10a and a plug-in port 10b communicating with the receiving cavity 10a. The circuit board 20 is disposed in the receiving cavity 10a. The receiving cavity 10a can be used to accommodate the circuit board 20, the power module and other modules of the controller. Some components of the connector 30 can extend from the plug-in port 10b for external electronic devices or other functional modules to be plugged in, thereby realizing data transmission between the circuit board 20 and external electronic devices or other functional modules.

[0033] In some embodiments, the housing 10 includes an upper shell 101 and a bottom plate 102, which are detachably connected. The receiving cavity 10a is located in the upper shell 101. The detachable connection between the upper shell 101 and the bottom plate 102 includes, but is not limited to, screwing, riveting, snap-fitting, etc.

[0034] For the connector 30 mentioned above, such as Figures 1-3 As shown, connector 30 includes a connecting terminal 301 and a terminal socket 302 connected to the connecting terminal 301. The terminal socket 302 is located within the receiving cavity 10a and is disposed on the circuit board 20. The terminal socket 302 is electrically connected to the circuit board 20. A portion of the connecting terminal 301 is located at the insertion port 10b. Users can connect to external electronic devices or other functional modules through the connecting terminal 301, thereby enabling data transmission between the circuit board 20 and external electronic devices or other functional modules. It is understood that the connection methods between the terminal socket 302 and the circuit board 20 include, but are not limited to, soldering, snap-fitting, screwing, riveting, etc.

[0035] For the aforementioned sealing ring 40, as Figure 4 and Figure 5As shown, the sealing ring 40 includes a sealing ring body 41, which includes a first surface 41a and a second surface 41b opposite to the first surface 41a. A first protruding ring 411 is provided on the sealing ring body 41, extending from the first surface 41a in a direction away from the second surface 41b. The first protruding ring 411 surrounds and forms a sealing groove 411a. A portion of the terminal socket 302 abuts against the second surface 41b of the sealing ring body 41, and the first surface 41a of the sealing ring body 41 abuts against the inner wall of the housing 10. The sealing ring body 41 is located at the terminal socket 302. Between the 02 and the housing 10, the first convex ring 411 abuts against the inner wall of the housing 10, and the groove of the sealing groove 411a abuts against the inner wall of the housing 10. When leakage occurs in the connection gap between the connecting terminal 301 and the housing 10, external water or foreign matter flows from the connection gap between the connecting terminal 301 and the housing 10 to the sealing ring body 41. At this time, the sealing groove 411a on the sealing ring body 41 can receive external water or foreign matter, and the sealing groove 411a can reduce the direct entry of external water or foreign matter into the housing 10, thereby reducing damage to the internal electronic components of the controller. In some embodiments, the contact between the first convex ring 411 and the inner wall of the housing 10 is a line contact. Line contact can provide higher contact pressure, thereby forming a more effective seal between the first convex ring 411 and the housing 10 to prevent liquid leakage.

[0036] In some embodiments, the sealing ring body 41 is provided with a plurality of mounting holes 412, which are spaced apart and located at the bottom of the sealing groove 411a. The connecting terminal 301 is inserted into the mounting hole 412 of the sealing ring 40 from the second surface 41b toward the first surface 41a, thereby achieving relative fixation between the connecting terminal 301 and the sealing ring 40. In some embodiments, to ensure a more stable connection between the connecting terminal 301 and the sealing ring body 41 and to have better airtightness, the connection method between the connecting terminal 301 and the mounting hole 412 is an interference fit.

[0037] In some embodiments, the connecting terminal 301 includes a plurality of metal pins (not shown), the diameter of which is larger than the diameter of the mounting hole 412. For example, the diameter of the metal pin is 1.3 mm and the diameter of the mounting hole 412 is 1.2 mm. It is understood that the diameter of the metal pin and the diameter of the mounting hole 412 are not specifically limited in this application, as long as the diameter of the metal pin is larger than the diameter of the mounting hole 412. The diameter of the mounting hole is smaller than the diameter of the mating metal pin, so that the sealing ring body 41 is compressed appropriately, achieving a sealing effect.

[0038] In some embodiments, please refer to the following: Figure 6The sealing ring body 41 is provided with a second protruding ring 413, which extends from the second surface 41b in a direction away from the first surface 41a. When the sealing ring body 41 is installed on the connecting terminal 301, the second protruding ring 413 abuts against the terminal socket 302. The contact method between the second protruding ring 413 and the terminal socket 302 is line contact. Line contact can provide higher contact pressure, thereby forming a more effective seal between the second protruding ring 413 and the terminal socket 302.

[0039] In some embodiments, please refer to the following: Figure 7 and Figure 8 A protective sleeve 414 extends from the outer periphery of the sealing ring body 41. The protective sleeve 414 extends from the second surface 41b in a direction away from the first surface 41a. A protective cavity 414a is provided on the protective sleeve 414, and the terminal socket 302 is located in the protective cavity 414a. When external water or foreign objects enter the housing 10 through the gap between the connecting terminal 301 and the housing 10, the protective sleeve 414 can shield and protect the terminal socket 302, reducing the direct damage to the terminal socket 302 caused by external water or foreign objects. In some embodiments, the protective sleeve 414 covers the terminal socket 302, and the side of the protective sleeve 414 away from the housing 10 abuts against the circuit board 20. This arrangement ensures that the protective cavity 414a is in a closed state, reducing the entry of external water or foreign objects into the protective cavity 414a.

[0040] In some embodiments, please refer to the following: Figure 5 and Figure 8 The inner wall of the protective cavity 414a is provided with a plurality of sealing protrusions 414b. The plurality of sealing protrusions 414b are spaced apart along the extension direction of the protective sleeve 414. The sealing protrusions 414b abut against the outer wall of the terminal socket 302. The contact method between the sealing protrusions 414b and the terminal socket 302 is line contact. Line contact can provide higher contact pressure, thereby forming a more effective seal between the sealing protrusions 414b and the terminal socket 302.

[0041] In some embodiments, please refer to the following: Figure 9 and Figure 10The number of mounting holes 412 can be 35, 23, or 14. It is understood that different numbers of mounting holes 412 indicate different types or sizes of sealing rings 40, and different connecting terminals 301 have different numbers of metal pins. Therefore, the user can install a sealing ring 40 with a corresponding number of mounting holes 412 on the connecting terminal 301 with a corresponding number of metal pins, according to actual needs. For example, if there are 14 metal pins, a sealing ring 40 with 14 mounting holes 412 will be installed; if there are 35 metal pins, a sealing ring 40 with 35 mounting holes 412 will be installed.

[0042] In some embodiments, the sealing ring body 41 is made of an elastic material, and the compression ratio of the sealing ring body 41 is 50%. The elastic material includes, but is not limited to, nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber, neoprene rubber, thermoplastic elastomers, polytetrafluoroethylene, polyurethane, etc.

[0043] In this embodiment, a sealing ring body 41 is provided. The sealing ring body 41 includes a first surface 41a and a second surface 41b opposite to the first surface 41a. A first protruding ring 411 is provided on the sealing ring body 41, extending from the first surface 41a in a direction away from the second surface 41b. The first protruding ring 411 surrounds a sealing groove 411a. A plurality of mounting holes 412 are provided on the sealing ring body 41, spaced apart from each other. The mounting holes 412 are located at the bottom of the sealing groove 411a. A connecting terminal 301 extends from the second surface 41a... The mounting hole 412 is inserted into the first surface 41a of the 1b, and part of the terminal socket 302 abuts against the second surface 41b of the sealing ring body 41. With this configuration, the sealing ring 40 in this application can reduce the need for tightening with fastening nuts or screws. The sealing ring 40 can be directly installed and fixed on the connecting terminal 301 using the mounting hole 412. In addition, since the sealing ring body 41 is in direct contact with the terminal socket 302, the sealing ring body 41 can shield against external water or foreign objects, thereby reducing the direct damage to the terminal socket 302 caused by external water or foreign objects.

[0044] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A seal ring applied to a connector, the connector including a connection terminal and a terminal socket, the connection terminal being provided on the terminal socket, characterized by, include: A sealing ring body, the sealing ring body includes a first surface and a second surface disposed opposite to the first surface, the sealing ring body is provided with a first protruding ring, the first protruding ring extends from the first surface in a direction away from the second surface, the first protruding ring surrounds and forms a sealing groove, the sealing ring body is provided with a plurality of mounting holes, the plurality of mounting holes are spaced apart, the plurality of mounting holes are located at the bottom of the sealing groove; The connecting terminal is inserted into the mounting hole from the second surface toward the first surface, and a portion of the terminal socket abuts against the second surface of the sealing ring body.

2. The sealing ring according to claim 1, characterized in that, A protective sleeve extends from the outer periphery of the sealing ring body. The protective sleeve extends from the second surface in a direction away from the first surface. A protective cavity is provided on the protective sleeve, and the terminal socket is located inside the protective cavity.

3. The sealing ring according to claim 2, characterized in that, The inner wall of the protective cavity is provided with a plurality of sealing protrusions, which are spaced apart along the extension direction of the protective sleeve, and the sealing protrusions abut against the outer wall of the terminal socket.

4. The sealing ring according to claim 2, characterized in that, The connection between the connecting terminal and the mounting hole is an interference fit.

5. The sealing ring according to claim 2, characterized in that, The sealing ring body is provided with a second protruding ring, which extends from the second surface in a direction away from the first surface.

6. The sealing ring according to claim 2, characterized in that, The connection terminal includes a plurality of metal pins, the diameter of which is larger than the diameter of the mounting hole.

7. The sealing ring according to claim 2, characterized in that, The number of the plurality of mounting holes is 35, or the number of the plurality of mounting holes is 23, or the number of the plurality of mounting holes is 14.

8. The sealing ring according to claim 2, characterized in that, The sealing ring body is made of elastic material, and the compression rate of the sealing ring body is 50%.

9. A controller characterized by comprising: The device includes a housing, a circuit board, a connector, and a sealing ring as described in any one of claims 1-8. The housing has a receiving cavity and a plug-in port communicating with the receiving cavity. The circuit board is disposed within the receiving cavity. The connector includes a connecting terminal and a terminal socket connected to the connecting terminal. The terminal socket is located within the receiving cavity and is disposed on the circuit board. The terminal socket is electrically connected to the circuit board. The connecting terminal is inserted into the mounting hole of the sealing ring from the second surface toward the first surface. A portion of the connecting terminal is located at the plug-in port. A portion of the terminal socket abuts against the second surface of the sealing ring body. The first surface of the sealing ring body abuts against the inner wall of the housing. The sealing ring body is located between the terminal socket and the housing.

10. A controller characterized by comprising: The sealing ring comprises a housing, a circuit board, a connector and the sealing ring of any one of claims 2-8, the housing is provided with a receiving cavity and a plug-in port communicating with the receiving cavity, the circuit board is arranged in the receiving cavity, the connector comprises a connecting terminal and a terminal socket connected with the connecting terminal, the terminal socket is located in the receiving cavity, the terminal socket is arranged on the circuit board, the terminal socket is electrically connected with the circuit board, the connecting terminal is plugged into the mounting hole of the sealing ring from the direction of the second surface to the first surface, part of the connecting terminal is located in the plug-in port, part of the terminal socket abuts against the second surface of the sealing ring body, the first surface of the sealing ring body abuts against the inner wall of the housing, the protective sleeve covers the terminal socket, and the side of the protective sleeve away from the housing abuts against the circuit board.

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