Sealing cover plate for new energy automobile inverter and production device thereof

Abstract

The invention relates to the technical field of new energy automobile part machining, in particular to a sealing cover plate for a new energy automobile inverter and a production device of the sealing cover plate. The machining device for machining the sealing cover plate comprises two vertical frames which are symmetrically arranged, a first conveying belt and a second conveying belt, the first conveying belt and the second conveying belt are arranged between the two vertical frames and distributed in parallel, a stand is installed between the two vertical frames through a double-shaft moving mechanism, and the double-shaft moving mechanism is used for driving the stand to be adjusted left and right and up and down. Four supporting rods are uniformly distributed on the lower surface of the stand through a first driving mechanism; according to the machining device, the double-shaft moving mechanism drives the stand to move and ascend and descend, the first driving mechanism drives the four supporting rods to gather and diffuse so as to open the sealing ring, the positioning mechanism positions the cover plate body, automatic alignment and assembly of the sealing ring and the second embedding groove are achieved, manual operation is replaced, the assembly difficulty is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle component processing, and in particular to a sealing cover plate for a new energy vehicle inverter and a production device thereof. Background Art

[0002] The inverter of a new energy vehicle is a core power electronic device that converts the direct current output of the vehicle's power battery into three-phase alternating current to drive the motor. It achieves efficient conversion of electrical energy through high-frequency switching devices and control algorithms, directly affecting the vehicle's power output, energy consumption level and driving smoothness. It must take into account technical requirements such as high power density, low loss, high reliability and heat dissipation optimization. It is the key hub connecting energy and power in the electric drive system of new energy vehicles.

[0003] Traditionally, the inverter cover and enclosure are sealed together using glue. Installation requires repeated application of glue, and the glue must air-dry and solidify before the cover can be connected. This results in long curing wait times and low production efficiency. When sealing with a sealing ring, traditional sealing rings typically have a flat rectangular cross-section, making them difficult to fit into the mounting grooves on the cover and enclosure during assembly. Furthermore, because the sealing ring is prone to bending and deformation, it is currently primarily assembled manually onto the cover, which is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0004] The object of the present invention is to provide a sealing cover plate for a new energy vehicle inverter and a production device thereof, so as to solve the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions.

[0006] A sealing cover for a new energy vehicle inverter includes a cover body. A sealing ring is installed on the sealing surface of the cover body. The sealing ring is hollow. A second embedding groove is opened on the sealing surface of the cover body. The sealing ring is embedded in the second embedding groove and partially exposed to the outside.

[0007] Preferably, the middle of the upper and lower parts of the sealing ring is an inner concave part, and the outer convex parts are located on both sides of the inner concave part. The shapes of the outer convex part and the inner concave part are both pointed cones, and the two are opposite. When the cover body and the box body are assembled, the compressed cross-section of the sealing ring becomes rectangular and is tightly filled in the second embedding groove and the first embedding groove of the box body.

[0008] The present invention also provides a sealing cover production device for new energy vehicle inverters, comprising two symmetrically arranged vertical frames and a first conveyor belt and a second conveyor belt arranged between the two vertical frames and distributed in parallel. A platform is installed between the two vertical frames through a dual-axis moving mechanism. The dual-axis moving mechanism is used to drive the platform to adjust left and right and up and down. Four support rods are evenly installed on the lower surface of the platform through a first driving mechanism. The first driving mechanism is used to drive the four support rods to gather and spread each other. When each support rod spreads to the extreme position, the sealing ring can be stretched to a shape that is compatible with the second embedding groove. A positioning mechanism distributed around the four support rods is provided under the platform for positioning the cover body so that the stretched sealing ring is aligned with the second embedding groove.

[0009] Preferably, the first driving mechanism includes a bidirectional threaded rod, a nut seat and a driving motor, a driving guide seat is fixed to the lower surface of the platform, and a bidirectional threaded rod that can rotate is provided on the driving guide seat, and a pair of nut seats are slidably installed on the upper limit of the driving guide seat, and the two nut seats are threadedly matched and mounted on both sides of the bidirectional threaded rod. A driving motor is installed on one side of the driving guide seat, and the output shaft of the driving motor is fixed to one end of the bidirectional threaded rod. Mounting arms are hingedly installed on both sides of the two nut seats, and each support rod is respectively installed on the corresponding mounting arm, and a roller is rotatably installed on each mounting arm. Four U-shaped guide rails are evenly distributed on the lower surface of the platform, and the U-shaped guide rails are symmetrically arranged in an eight-shaped shape. Each roller is clamped in the corresponding U-shaped guide rail, and is used to guide the distance between the two mounting arms on the same side to increase when the two nut seats move away from each other.

[0010] Preferably, a pressure plate and a sleeve are slidably sleeved on the outside of each support rod, the bottom end of the sleeve is fixed to the top end of the pressure plate, a U-shaped supply rack is fixed to the lower surface of the frame, a third cylinder is vertically fixed to the lower surface of the U-shaped supply rack, a connecting seat is fixed on the telescopic end below the third cylinder, each sleeve is connected to the connecting seat by a telescopic rod, and both ends of the telescopic rod are hinged to the sleeve and the connecting seat respectively through universal ball joints.

[0011] Preferably, two pressure rods are installed on the outer peripheral wall of the pressure plate, and the ends of the eight pressure rods are in contact with each other to form a rectangular press-fit structure.

[0012] Preferably, the pressure rod includes a main rod and a sub-rod, the main rod is fixed on the outer peripheral wall of the pressure plate, and the sub-rod is slidably inserted into the main rod, and the bottom surfaces of the main rod and the sub-rod are flush to form a press-fitting part, and the width of the press-fitting part of the pressure rod is greater than the width of the sealing ring. A spring extending along its length direction is installed on the inner end wall of each main rod, and the other end of the spring is fixed to the end face of the sub-rod.

[0013] Preferably, the positioning mechanism includes a second cylinder, a first clamping plate and a second clamping plate, side plates are fixed on both sides of the frame, second cylinders are fixed on the lower surfaces of both side plates, a rectangular frame is fixed on the telescopic ends below the two second cylinders, a second driving mechanism is provided on one long side of the rectangular frame, the first clamping plates are respectively installed on the two movable ends of the second driving mechanism, the second driving mechanism is used to drive the two first clamping plates to approach or move away from each other, a third driving mechanism is provided on one short side of the rectangular frame, the second clamping plates are respectively installed on the two movable ends of the third driving mechanism through connecting arms, the third driving mechanism is used to drive the two second clamping plates to approach or move away from each other, and the length of the second clamping plate is less than the side length of the cover body.

[0014] Preferably, the dual-axis moving mechanism includes a power guide rail and a first cylinder. Two power guide rails extending left and right are commonly fixed on the cantilevers at the top of the two upright frames. A mounting plate is commonly fixed below the moving seats on the two power guide rails. The first cylinder is vertically fixed above the mounting plate, and the telescopic end is fixed to the upper surface of the platform located below the mounting plate. Two guide rods are symmetrically fixed on the upper surface of the platform, and the two guide rods slide through the sliding holes on the mounting plate respectively.

[0015] There are four through holes on the platform, and studs are fixed on the back of each U-shaped guide rail. The four studs pass through the through holes one by one and are fastened to the platform by fastening nuts.

[0016] Compared with the prior art, the present invention has the following beneficial effects.

[0017] The sealing ring provided by the present invention is a hollow body, and the inner concave part in the middle of the upper and lower parts and the outer convex parts on both sides are in the shape of reverse pointed cones, so that the width of the upper and lower cross-sections gradually decreases, which is convenient for embedding into the second embedding groove and the first embedding groove. After being compressed, the cross-section becomes rectangular, tightly filling the embedding grooves on the cover body and the box body, increasing the extrusion sealing area, and effectively improving the sealing effect.

[0018] The platform is driven to move and lift through a dual-axis moving mechanism. The first driving mechanism drives the four support rods to gather and spread to open the sealing ring. The positioning mechanism positions the cover body to achieve automatic alignment and assembly of the sealing ring and the second mounting groove, replacing manual operation, reducing assembly difficulty and improving production efficiency.

[0019] The pressure plate, sleeve and pressure rod outside the support rod form a rectangular press-fitting structure. The width of the press-fitting part is larger than the sealing ring. When descending, the four sides of the sealing ring are simultaneously pressed into the second embedding groove to avoid distortion of the sealing ring, ensure the integrity and effectiveness of the press-fitting, and ensure the assembly quality.

[0020] The rectangular frame is moved downward by the second cylinder, and the first clamping plates are driven closer to each other by the second driving mechanism and the second clamping plates are driven closer to each other by the third driving mechanism, so that the cover body is clamped and positioned in the center, and the second embedding groove is accurately aligned with the expanded sealing ring, thereby improving the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the sealing cover structure provided by the present invention; Figure 2 for Figure 1 A schematic diagram of a partial cross section of the structure shown; Figure 3 This is a schematic diagram of the cross-section of the sealing ring in the present invention; Figure 4 This is a structural diagram of the sealing ring embedded in the first and second embedding grooves; Figure 5 This is one of the structural schematic diagrams of the production device provided by the present invention; Figure 6 Schematic diagram of the structure of the dual-axis moving mechanism in the present invention; Figure 7 It is a schematic diagram of the structure below the platform in the present invention; Figure 8 for Figure 7 The structure shown omits the schematic diagram of the positioning mechanism; Figure 9 Schematic diagram of the detailed installation structure of the support rod in the present invention; Figure 10 It is a schematic diagram of the structure on the four support poles; Figure 11 Schematic diagram of the detailed structure of the pressure rod in the present invention; Figure 12 Detailed structural diagram of the positioning mechanism in the present invention; Figure 13 This is a schematic diagram of the installation of the U-shaped guide rail structure in the present invention; Figure 14 A schematic diagram of the structure where four support rods gather together before the sealing ring is opened; Figure 15 A schematic diagram of the structure of the sealing ring being disassembled by four support rods; Figure 16 Schematic diagram of the structure of the pressure plate and the pressure rod covering the sealing ring.

[0022] In the figure: 01, box body; 011, first embedding groove; 02, stand; 021, cantilever; 03, first conveyor belt; 04, second conveyor belt; 1, cover plate body; 11, second embedding groove; 2, sealing ring; 21, inner concave portion; 22, outer convex portion; 3, biaxial moving mechanism; 31, power guide rail; 311, moving seat; 32, mounting plate; 321, sliding hole; 33, first cylinder; 34, guide rod; 4, stand; 41, U-shaped supply rack; 5, support rod; 6, first driving mechanism; 61, driving guide seat; 62, two-way threaded rod; 63, nut seat; 64, drive mechanism; 65, drive guide seat; 66, drive guide seat; 67, drive guide seat; 68, drive guide seat; 69, drive guide seat; 70, drive guide seat; 71, drive guide seat; 72, drive guide seat; 73, drive guide seat; 74, drive guide seat; 75, drive guide seat; 76, drive guide seat; 77, drive guide seat; 78, drive guide seat; 79, drive guide seat; 80, drive guide seat; 81, drive guide seat; 82, drive guide seat; 83, drive guide seat; 84, drive guide seat; 85, drive guide seat; 86, drive guide seat; 87, drive guide seat; 88, drive guide seat; 89, drive guide seat; 90, drive guide seat; 91, drive guide seat; 92, drive guide seat; 93, drive guide seat; 94, drive guide seat; 95, drive guide seat; 96, drive guide seat; 97, drive guide seat; 98, drive guide seat; 99, drive guide seat; 100, drive guide seat; 101, drive guide seat; 1 4. Drive motor; 65. Mounting arm; 66. Roller; 67. U-shaped guide rail; 671. Through hole; 672. Stud; 673. Fastening nut; 7. Positioning mechanism; 71. Second cylinder; 711. Side plate; 72. Rectangular frame; 73. Second drive mechanism; 74. First clamping plate; 75. Third drive mechanism; 76. Connecting arm; 77. Second clamping plate; 8. Pressure plate; 81. Pressure rod; 811. Main rod; 812. Auxiliary rod; 813. Spring; 9. Sleeve; 91. Third cylinder; 92. Connecting seat; 93. Universal ball joint; 94. Telescopic rod. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0025] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0026] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0027] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Example 1

[0028] See also Figure 1-Figure 4 The present invention provides a sealing cover for a new energy vehicle inverter, including a cover body 1. The cover body 1 can be assembled on a box body 01. A sealing ring 2 is installed on the sealing surface of the cover body 1. The box body 01 has a first embedding groove 011 for the sealing ring 2 to be embedded. A second embedding groove 11 is opened on the sealing surface of the cover body 1. When the sealing ring 2 is fitly embedded in the second embedding groove 11, part of the sealing ring 2 is exposed to the outside. When the cover body 1 is covered on the box body 01, the exposed part of the sealing ring 2 can fitly embed in the first embedding groove 011 on the box body 01.

[0029] like Figure 3 As shown, the middle of the upper and lower parts of the sealing ring 2 is an inner concave portion 21, and the outer convex portions 22 are located on both sides of the inner concave portion 21, that is, the upper and lower parts of the sealing ring 2 have two inner concave portions 21 and four outer convex portions 22, and the outer convex portions 22 and the inner concave portions 21 are both conical in shape and in opposite directions, that is, the inner concave portions 21 and the outer convex portions 22 face opposite directions; Since the outer protrusions 22 on both sides of the upper and lower sides of the sealing ring 2 are designed to be pointed cones facing outwards in cross section, the cross-sectional width of the sealing ring 2 changes gradually upward and downward, thereby facilitating the sealing ring 2 to be embedded in the second embedding groove 11 and the first embedding groove 011, reducing the difficulty of assembly.

[0030] On the other hand, the sealing ring 2 is a hollow body, and the wall thickness is controlled to be 1.5-2mm. In addition, when the cover body 1 and the box body 01 are assembled, when the sealing ring 2 is embedded in the second embedding groove 11 and the first embedding groove 011, combined with the characteristics of the sealing ring 2 being a hollow body and having the ability to deform, Figure 4 As shown, the sealing ring 2 is under pressure and its cross-section is squeezed into a rectangular shape, which matches the shape of the second embedding groove 11 and the first embedding groove 011, and is tightly filled in the second embedding groove 11 and the first embedding groove 011, thereby increasing the extrusion sealing area between the sealing ring 2 and the inner walls of the second embedding groove 11 and the first embedding groove 011, and effectively improving the sealing effect. Example 2

[0031] See also Figure 5-Figure 13 The present invention also provides a sealing cover production device for a new energy vehicle inverter, which is used to match and embed the sealing ring 2 in the second embedding groove 11 to replace traditional manual assembly, reduce assembly difficulty, and improve production efficiency.

[0032] The production device includes two symmetrically arranged vertical frames 02 and a first conveyor belt 03 and a second conveyor belt 04 arranged between the two vertical frames 02 and distributed in parallel. The first conveyor belt 03 is used to convey the sealing ring 2, and the second conveyor belt 04 is used to convey the cover body 1. The first conveyor belt 03 and the second conveyor belt 04 both load materials on one side and unload materials on the other side. The loading and unloading structure adopts the existing technology, and the specific structure and principle will not be described in detail. In addition, the loading timing of the cover body 1 and the sealing ring 2 cooperates with each other to ensure that the conveying speed is adapted.

[0033] A platform 4 is installed between the two vertical frames 02 through a double-axis moving mechanism 3. The double-axis moving mechanism 3 can drive the platform 4 to move left and right so as to switch the position of the platform 4 between the first conveyor belt 03 and the second conveyor belt 04. At the same time, the double-axis moving mechanism 3 can also drive the platform 4 to rise and fall so that the platform 4 can move downward and approach the first conveyor belt 03 or the second conveyor belt 04. Four support rods 5 are evenly installed on the lower surface of the platform 4 through a first driving mechanism 6. The first driving mechanism 6 is used to drive the four support rods 5 to gather and spread together. A positioning mechanism 7 distributed around the four support rods 5 is provided under the platform 4.

[0034] During processing, the double-axis moving mechanism 3 is used to drive the platform 4 to move above the first conveyor belt 03, and the first driving mechanism 6 drives the struts 5 to gather together so that the space surrounded by the four struts 5 is smaller than the diameter of the sealing ring 2. Figure 14 As shown, so that the four struts 5 can enter the space enclosed by the sealing ring 2; Then, the biaxial moving mechanism 3 drives the platform 4 downward until the support rods 5 are all in contact with the conveying surface of the first conveyor belt 03, and then the first driving mechanism 6 drives the four support rods 5 to spread to the extreme position. Figure 15 As shown, the four support rods 5 can open the sealing ring 2 into a rectangular shape from the inside and adapt to the second embedding groove 11; Subsequently, the double-axis moving mechanism 3 drives the platform 4 upward, and the four support rods 5 drive the expanded sealing ring 2 upward synchronously, and then the double-axis moving mechanism 3 drives the platform 4 to move above the second conveyor belt 04; Next, the positioning mechanism 7 is used to position the cover body 1 on the second conveyor belt 04, and then the dual-axis moving mechanism 3 drives the platform 4 and drives the sealing ring 2 downward until the support rod 5 contacts and fits the conveying surface of the second conveyor belt 04. At this time, the sealing ring 2 is aligned with the second embedding groove 11. Example 3

[0035] See also Figure 8 and Figure 9 The difference between this embodiment and embodiment 2 is that: The first driving mechanism 6 includes a bidirectional threaded rod 62, a nut seat 63 and a driving motor 64. A driving guide seat 61 is fixed to the lower surface of the frame 4. The driving guide seat 61 has a rotatable bidirectional threaded rod 62. A pair of nut seats 63 are slidably mounted on the driving guide seat 61. The two nut seats 63 are threadedly matched and fitted on both sides of the bidirectional threaded rod 62. A driving motor 64 is installed on one side of the driving guide seat 61. The output shaft of the driving motor 64 is fixed to one end of the bidirectional threaded rod 62. The two nut seats 63 are hingedly mounted on both sides with mounting arms 65, and each support rod 5 is mounted on the corresponding mounting arm 65. Each mounting arm 65 is rotatably mounted with a roller 66. The lower surface of the platform 4 is evenly distributed with four U-shaped guide rails 67. The U-shaped guide rails 67 are symmetrically arranged in an "eight" shape, and each roller 66 is clamped in the corresponding U-shaped guide rail 67 to guide the distance between the two mounting arms 65 on the same side to increase when the two nut seats 63 move away from each other.

[0036] By driving the motor 64 to rotate forward and reverse, its output shaft drives the bidirectional threaded rod 62 to rotate synchronously. When the bidirectional threaded rod 62 rotates forward, it can threadably drive the two nut seats 63 away from each other, and drive the mounting arm 65 and the support rod 5 on the same side to move synchronously. Under the limiting and guiding action of the roller 66 rolling along the inner wall of the U-shaped guide rail 67, the two mounting arms 65 on the same nut seat 63 are pulled to swing at an increasing angle, thereby realizing the diffuse movement of the four support rods 5. When the bidirectional threaded rods 62 rotate in opposite directions, the threads drive the two bidirectional threaded rods 62 to move closer to each other. Under the cooperation of the U-shaped guide rail 67 and the roller 66 , the four support rods 5 are brought closer to each other under the limiting and guiding effect of the mounting arm 65 .

[0037] like Figure 13As shown, four through holes 671 are evenly distributed on the stand 4, and a stud 672 is fixed on the back of each U-shaped guide rail 67. After the stud 672 is passed through the through holes 671 accordingly, the fastening nut 673 is tightened on the stud 672 to achieve the fastening installation of the U-shaped guide rail 67. At the same time, when the fastening nut 673 is loosened, the stud 672 can be rotated and adjusted in the through hole 671 to adjust the layout direction of the U-shaped guide rail 67, and then adjust the swing angle of the guide installation arm 65, so that the support rod 5 is spread at different intervals, thereby adapting to sealing rings 2 of different sizes. Example 4

[0038] See also Figure 8 and Figure 10 The difference between this embodiment and embodiment 3 is that: A pressure plate 8 and a sleeve 9 are slidably sleeved on the outside of each support rod 5. The bottom end of the sleeve 9 is fixed to the top end of the pressure plate 8. A U-shaped supply rack 41 is fixed to the lower surface of the stand 4. A third cylinder 91 is vertically fixed to the lower surface of the U-shaped supply rack 41. A connecting seat 92 is fixed on the telescopic end below the third cylinder 91. Each sleeve 9 is connected to the connecting seat 92 by a telescopic rod 94. Both ends of the telescopic rod 94 are hinged to the sleeve 9 and the connecting seat 92 respectively through a universal ball joint 93.

[0039] The biaxial moving mechanism 3 drives the platform 4 and the support rod 5 downward, moves the expanded sealing ring 2 to the top of the second embedding groove 11 and aligns it, and then the third cylinder 91 extends to push the connecting seat 92 downward. Under the connection of the telescopic rod 94, the pressure plates 8 and sleeves 9 are driven to move downward synchronously. Figure 16 As shown, the dotted line structure in the figure is the sealing ring 2. It can be seen that the pressure plate 8 covers the top of the sealing ring 2. When the pressure plate 8 moves downward, the four corners of the sealing ring 2 can be pressed downward along the support rod 5 into the second mounting groove 11; At the same time, two pressure rods 81 are installed on the outer wall of the pressure plate 8, and the ends of the eight pressure rods 81 are in contact with each other to form a rectangular press-fitting structure. The rectangular press-fitting structure covers the four sides of the sealing ring 2. When descending, the remaining four sides of the sealing ring 2 can be pressed downward into the second embedding groove 11 at the same time, and finally, the assembly of the cover body 1 and the sealing ring 2 is completed.

[0040] Among them, one end of the telescopic rod 94 is hinged to the sleeve 9 through a universal ball joint 93, and the other end is hinged to the connecting seat 92 through a universal ball joint 93. Combined with the telescopic rod 94 having the ability to telescope, it can adapt to the position changes of the four support rods 5 when they gather or spread, ensuring that the connection between the sleeve 9 and the connecting seat 92 is always effective.

[0041] like Figure 11As shown, the pressure rod 81 includes a main rod 811 and a sub-rod 812. The main rod 811 is fixed on the outer wall of the pressure plate 8, and the sub-rod 812 is slidably inserted into the main rod 811. The bottom surfaces of the main rod 811 and the sub-rod 812 are flush to form a press-fitting part. The width of the press-fitting part of the pressure rod 81 is greater than the width of the sealing ring 2 to ensure that the pressure rod 81 can completely cover the sealing ring 2 and ensure the effectiveness of the press-fitting.

[0042] In addition, a spring 813 extending along the length direction is installed on the inner end wall of each main rod 811, and the other end of the spring 813 is fixed to the end face of the auxiliary rod 812. The spring 813 provides the auxiliary rod 812 with elastic expansion and contraction capabilities. When the support rods 5 gather together, the corresponding ends of the two auxiliary rods 812 collide with each other. As the distance between them decreases, the auxiliary rods 812 retreat into the main rod 811, and the spring 813 is compressed. When the support rods 5 spread, the elastic force of the spring 813 pushes the auxiliary rod 812 to slide out, thereby ensuring that when the support rods 5 gather or spread, the corresponding ends of the two auxiliary rods 812 continue to abut, thereby continuously forming a complete rectangular press-fit structure.

[0043] A complete and effective press-fitting portion is formed by the rectangular press-fitting structure composed of the pressure plate 8 and the pressure rod 81, and the width of the press-fitting portion is greater than the width of the sealing ring 2, ensuring that the sealing ring 2 can be pressed into the second mounting groove 11 as a whole to avoid local pressure leakage. At the same time, the sealing ring 2 and the pressure rod 81 push the sealing ring 2 downward synchronously, which can prevent the sealing ring 2 from twisting and deforming and being unable to be normally installed in the second mounting groove 11. Example 5

[0044] Please refer to the figure Figure 6 、 Figure 7 and Figure 12 The difference between this embodiment and embodiment 4 is that: The positioning mechanism 7 includes a second cylinder 71, a first clamping plate 74, and a second clamping plate 77. Side plates 711 are fixed to both sides of the platform 4. The lower surfaces of the two side plates 711 are fixed with second cylinders 71. A rectangular frame 72 is fixed to the telescopic ends below the two second cylinders 71. A second driving mechanism 73 is provided on one long side of the rectangular frame 72. The first clamping plates 74 are respectively installed on the two movable ends of the second driving mechanism 73. The second driving mechanism 73 is used to drive the two first clamping plates 74 to move closer to or away from each other. A third driving mechanism 75 is provided on one short side of the rectangular frame 72 . Second clamping plates 77 are respectively installed on the two movable ends of the third driving mechanism 75 through connecting arms 76 . The third driving mechanism 75 is used to drive the two second clamping plates 77 to move closer to or away from each other.

[0045] When the cover body 1 is not positioned, the second driving mechanism 73 drives the two first clamps 74 away from each other to the sides, and the third driving mechanism 75 drives the two second clamps 77 away from each other to the sides, leaving the middle space so that the second cylinder 71 can retract and drive the rectangular frame 72 and the components thereon to move up to the periphery of the four support rods 5.

[0046] After the expanded sealing ring 2 is transferred to the top of the second conveyor belt 04, the second cylinder 71 is extended to push the rectangular frame 72 downward until the bottom ends of the first clamping plate 74 and the second clamping plate 77 are in contact with the conveying surface of the second conveyor belt 04. The area formed between the two first clamping plates 74 and the two second clamping plates 77 is much larger than the area of ​​the cover body 1, ensuring that the first clamping plates 74 and the second clamping plates 77 can smoothly fall on the periphery of the cover body 1. Next, the third driving mechanism 75 works, and under the connection action of the connecting arm 76, the two second clamping plates 77 are driven to approach each other, which can clamp the cover body 1 in the center in the first direction. Subsequently, the second driving mechanism 73 works, driving the two first clamping plates 74 to approach each other, clamping the cover body 1 in the center in the second direction, and realizing the center positioning of the cover body 1. At this time, the second embedding groove 11 is aligned with the stretched sealing ring 2. Afterwards, the first clamping plate 74 and the second clamping plate 77 are reset, and the second cylinder 71 retracts to drive the rectangular frame 72 to move upward, and the press-fitting work can be carried out.

[0047] The length of the second clamping plate 77 is smaller than the side length of the cover body 1 , so as to avoid blocking and interfering with the two first clamping plates 74 and preventing the cover body 1 from being tightened and positioned, and the structural layout is reasonable.

[0048] It is worth noting that the driving principles of the second driving mechanism 73 and the third driving mechanism 75 are consistent with those of the first driving mechanism 6 , and therefore, their specific structures and working principles will not be described in detail.

[0049] like Figure 6 As shown, the biaxial moving mechanism 3 includes a power rail 31 and a first cylinder 33. Two power rails 31 extending left and right are fixed to the cantilever 021 at the top of the two vertical frames 02. A mounting plate 32 is fixed below the moving base 311 on the two power rails 31. The first cylinder 33 is vertically fixed above the mounting plate 32, and the telescopic end is fixed to the upper surface of the platform 4 located below the mounting plate 32. Through the operation of the power guide rail 31, the movable seat 311 thereon can drive the mounting plate 32 and the platform 4 to move left and right, providing stable drive for the left and right movement adjustment of the platform 4. Through the telescopic operation of the first cylinder 33, its telescopic end can drive the platform 4 to move up and down, thereby providing drive for the lifting and lowering adjustment of the platform 4.

[0050] In addition, two guide rods 34 are symmetrically fixed on the upper surface of the platform 4. The two guide rods 34 slide through the sliding holes 321 on the mounting plate 32 respectively. When the platform 4 is raised or lowered, the guide rods 34 are driven to move synchronously along the sliding holes 321. The sliding cooperation between the guide rods 34 and the sliding holes 321 provides a guiding and limiting function for the lifting of the platform 4, thereby ensuring the stability of the lifting process of the platform 4.

[0051] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field, so the present invention will no longer explain the control method and circuit connection in detail.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A sealing cover plate for a new energy vehicle inverter, comprising a cover plate body (1), characterized in that: A sealing ring (2) is mounted on the sealing surface of the cover plate body (1), and the sealing ring (2) is a hollow body; A second embedding groove (11) is provided on the sealing surface of the cover plate body (1), and the sealing ring (2) is fitted into the second embedding groove (11) and partially exposed to the outside.

2. The sealing cover plate for a new energy vehicle inverter according to claim 1, characterized in that: The middle of the upper and lower parts of the sealing ring (2) is an inner concave portion (21), and the outer convex portions (22) are located on both sides of the inner concave portion (21); The outer convex portion (22) and the inner concave portion (21) are both conical in shape and are in opposite directions; When the cover plate body (1) and the box body (01) are assembled, the compressed cross-section of the sealing ring (2) becomes rectangular and tightly fills the second embedding groove (11) and the first embedding groove (011) of the box body (01).

3. A device for producing a sealing cover plate for a new energy vehicle inverter, used for producing the sealing cover plate for a new energy vehicle inverter according to any one of claims 1 to 2, characterized in that: It comprises two symmetrically arranged vertical frames (02) and a first conveyor belt (03) and a second conveyor belt (04) arranged between the two vertical frames (02) and distributed in parallel; A platform (4) is installed between the two upright frames (02) via a biaxial moving mechanism (3), and the biaxial moving mechanism (3) is used to drive the platform (4) to adjust left and right and up and down; Four support rods (5) are evenly distributed on the lower surface of the platform (4) via a first driving mechanism (6), and the first driving mechanism (6) is used to drive the four support rods (5) to gather and spread together; When each of the support rods (5) expands to an extreme position, the sealing ring (2) can be expanded to a shape adapted to fit the second embedding groove (11); A positioning mechanism (7) distributed around the four support rods (5) is provided below the stand (4) and is used to position the cover body (1) so that the expanded sealing ring (2) is aligned with the second embedding groove (11).

4. The production device for a sealing cover plate for a new energy vehicle inverter according to claim 3, characterized in that: The first driving mechanism (6) comprises a bidirectional threaded rod (62), a nut seat (63) and a driving motor (64); A driving guide seat (61) is fixed on the lower surface of the stand (4), and the driving guide seat (61) has a rotatable bidirectional threaded rod (62); The driving guide seat (61) is provided with a pair of nut seats (63) for sliding installation in the upper limit position, and the two nut seats (63) are thread-matched and sleeved on both sides of the bidirectional threaded rod (62); A driving motor (64) is installed on one side of the driving guide seat (61), and an output shaft of the driving motor (64) is fixed to one end of the bidirectional threaded rod (62); Both sides of the two nut seats (63) are hingedly mounted with mounting arms (65), each of the support rods (5) is mounted on the corresponding mounting arms (65), and each of the mounting arms (65) is rotatably mounted with a roller (66); Four U-shaped guide rails (67) are evenly distributed on the lower surface of the stand (4), and the U-shaped guide rails (67) are symmetrically arranged in an eight-shaped pattern. Each of the rollers (66) is clamped in the corresponding U-shaped guide rail (67) and is used to guide the distance between the two mounting arms (65) on the same side to increase when the two nut seats (63) move away from each other.

5. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 3, characterized in that: Each of the support rods (5) is provided with a pressure plate (8) and a sleeve (9) on the outside thereof in a sliding sleeve, and the bottom end of the sleeve (9) is fixed to the top end of the pressure plate (8); A U-shaped supply rack (41) is fixed on the lower surface of the stand (4), a third cylinder (91) is vertically fixed on the lower surface of the U-shaped supply rack (41), and a connecting seat (92) is fixed on the telescopic end below the third cylinder (91); Each of the sleeves (9) and the connecting seat (92) is connected via a telescopic rod (94); Both ends of the telescopic rod (94) are respectively hinged to the sleeve (9) and the connecting seat (92) through universal ball joints (93).

6. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 5, characterized in that: Two pressure rods (81) are installed on the outer peripheral wall of the pressure plate (8), and the ends of the eight pressure rods (81) are in contact with each other to form a rectangular press-fit structure.

7. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 6, characterized in that: The pressure rod (81) includes a main rod (811) and a secondary rod (812); The main rod (811) is correspondingly fixed on the outer peripheral wall of the pressure plate (8), and the auxiliary rod (812) is correspondingly slidably inserted into the main rod (811), and the bottom surfaces of the main rod (811) and the auxiliary rod (812) are flush, forming a press-fitting portion; The width of the press-fitting portion of the pressure rod (81) is greater than the width of the sealing ring (2); A spring (813) extending along the length direction of each main rod (811) is mounted on the inner end wall thereof, and the other end of the spring (813) is fixed to the end surface of the auxiliary rod (812).

8. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 3, characterized in that: The positioning mechanism (7) comprises a second cylinder (71), a first clamping plate (74) and a second clamping plate (77); Side plates (711) are fixed on both sides of the platform (4), and the second cylinder (71) is fixed on the lower surface of the two side plates (711); A rectangular frame (72) is fixed to the lower telescopic ends of the two second cylinders (71); A second driving mechanism (73) is provided on one of the long sides of the rectangular frame (72), and the first clamping plates (74) are respectively installed on the two movable ends of the second driving mechanism (73), and the second driving mechanism (73) is used to drive the two first clamping plates (74) to move closer to or away from each other; A third driving mechanism (75) is provided on one short side of the rectangular frame (72), and second clamping plates (77) are respectively installed on two movable ends of the third driving mechanism (75) through connecting arms (76). The third driving mechanism (75) is used to drive the two second clamping plates (77) to move closer to or farther from each other. The length of the second clamping plate (77) is smaller than the side length of the cover plate body (1).

9. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 3, characterized in that: The dual-axis moving mechanism (3) includes a power guide rail (31) and a first cylinder (33); Two power guide rails (31) extending left and right are fixed to the cantilever arms (021) at the top of the two upright frames (02), and a mounting plate (32) is fixed to the bottom of the movable seats (311) on the two power guide rails (31); The first cylinder (33) is vertically fixed above the mounting plate (32), and the telescopic end is fixed to the upper surface of the platform (4) located below the mounting plate (32); Two guide rods (34) are symmetrically fixed on the upper surface of the stand (4), and the two guide rods (34) slide through the sliding holes (321) on the mounting plate (32) respectively.

10. The device for producing a sealing cover plate for a new energy vehicle inverter according to claim 4, characterized in that: Four through holes (671) are evenly distributed on the stand (4), and a stud (672) is fixed on the back of each U-shaped guide rail (67); The four studs (672) pass through the insertion holes (671) in a one-to-one correspondence and are fastened to the stand (4) via fastening nuts (673).

Images