Airtightness testing device for OBC vehicle charger

Abstract

The utility model relates to an OBC vehicle charger air tightness testing device comprising a workbench, a manipulator arranged on the workbench, a slide rail arranged on the workbench, and a tray arranged on the slide rail in a sliding manner, the workbench is provided with a testing frame, and the testing frame is provided with a plurality of groups of testing assemblies and a plurality of groups of plugging assemblies. Each plugging assembly comprises a plurality of plugging heads, an air bag is arranged on each plugging head, an inflation assembly is arranged below each air bag, each inflation assembly comprises a cylinder and a piston slidably arranged in the cylinder, a limiting assembly is arranged in the cylinder, and the manipulator is used for transferring a charger placed on the tray to the test frame. The plugging assembly is used for pushing a piston to slide while a plurality of plugging heads plug a plurality of seals in the charger, the inflation assembly is used for injecting gas into a gas bag when the piston slides and sealing the plugged part, the limiting assembly is used for limiting the piston, and the testing assembly is used for carrying out an airtight test on the charger. And the charger testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, and more specifically to an OBC vehicle charger air tightness testing device. Background Art

[0002] An on-board charger refers to a charger that is fixedly installed on an electric vehicle and has the ability to safely and automatically fully charge the electric vehicle's power battery. On-board products do not have strict requirements for product airtightness. Poor airtightness of the product may cause water infiltration and cause a short circuit, thereby causing a failure of the entire vehicle. Therefore, on-board chargers need to undergo an airtightness test before leaving the factory to detect the sealing inside the charger.

[0003] However, during the current air tightness test of on-board chargers, the chargers are difficult to carry manually due to their large size. In addition, the chargers are not properly fixed, resulting in offset. When the connector seals on the chargers are sealed during the test, the sealing effect is poor, affecting work efficiency. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the existing technology and provide an OBC vehicle charger air tightness testing device. After the charger is transferred to the test stand by a manipulator, the sealing head seals the seal and pushes the piston to slide, injecting the gas in the cylinder into the airbag, so that the airbag further seals the seal, thereby improving the sealing performance of the seal and improving the efficiency of the charger air tightness test.

[0005] The technical solutions of this utility model are as follows:

[0006] An OBC vehicle charger air tightness test device includes a workbench, a manipulator arranged on the workbench, a slide rail arranged on the workbench, and a tray slidably arranged on the slide rail. The workbench is provided with a test frame, and the test frame is provided with several groups of test components and several groups of sealing components. A single group of the sealing components includes several sealing heads, and an airbag is provided on the sealing head. An inflation component is provided below the airbag, and the inflation component includes a cylinder and a piston slidably arranged in the cylinder. A limiting component is provided in the cylinder. The manipulator is used to transfer the charger placed on the tray to the test frame. The sealing component is used for several sealing heads to seal several seals on the charger while pushing the piston to slide. The inflation component is used to inject gas into the airbag when the piston slides to seal the seal. The limiting component is used to limit the piston. The test component is used to perform an airtight test on the charger.

[0007] Preferably, a single group of the test components includes a first slide rail fixedly arranged on the test frame, a first slider slidably arranged on the first slide rail, a first support plate fixedly arranged on the first slider, and a test head fixedly arranged on the first support plate.

[0008] As a preference, a single group of the sealing assembly also includes a second slide rail fixedly arranged on the test frame, a second slider slidingly arranged on the second slide rail, a second support plate fixedly arranged on the second slider, and a plurality of sealing heads are respectively arranged on the first support plate and the second support plate.

[0009] As a preferred embodiment, the inflation component also includes a receiving groove on the sealing head, an air pipe fixedly connected between the airbag and the cylinder, and a piston rod slidably arranged on the sealing head. The airbag is fixedly arranged in the receiving groove, the cylinder is fixedly arranged on the sealing head, and the piston rod is fixedly connected to the piston.

[0010] As a preference, the limiting assembly includes a slide groove provided on the inner wall of the cylinder, a latch slidably arranged in the slide groove, and a spring fixedly arranged between the piston and the cylinder, and a spring is connected between the latch and the slide groove.

[0011] As a preference, first inclined surfaces are provided on both sides of the latch, and second inclined surfaces are provided on both sides of the piston, and the first inclined surfaces match the second inclined surfaces.

[0012] As a preference, the top of the piston rod is configured to be spherical and is provided with a rubber pad.

[0013] The beneficial effects of the present utility model are:

[0014] 1. The utility model is provided with a test assembly and a sealing assembly. The charger is moved to the test stand by a manipulator. After the sealing head seals the seal, the test head docks with the test hole on the charger for testing. When the test is completed, the manipulator transfers the charger to the pallet for the next process, solving the problem of time-consuming and labor-intensive transportation of the charger, thereby improving the efficiency of the charger's airtightness test.

[0015] 2. The utility model is provided with an inflation component and a limit component. The piston pushes the piston rod through the seal to enable the piston to inject the gas in the cylinder into the airbag, so that the airbag is inflated and fits the seal to further seal it, making the sealing effect better. The piston is automatically reset through the limit action to prepare for the next gas injection.

[0016] In summary, the utility model has the advantages of high testing efficiency and good testing effect, and is suitable for the technical field of automobile parts production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a structural diagram of an OBC vehicle charger air tightness test device;

[0019] Figure 2 It is a structural diagram of the test stand;

[0020] Figure 3 Schematic diagram of the sealing structure;

[0021] Figure 4 It is a structural diagram of the test component;

[0022] Figure 5 It is a structural schematic diagram of the plugging component;

[0023] Figure 6 It is a structural diagram of the receiving tank;

[0024] Figure 7 This is a schematic diagram of the state when the plugging head and the sealing port are sealed;

[0025] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 This is a schematic diagram of the working status of the plugging head and the test head;

[0027] Figure 10 This is a schematic diagram of the state of the test head during airtightness test;

[0028] Figure numerals: 1 workbench, 2 manipulator, 3 slide rail, 4 pallet, 5 test frame, 6 test assembly, 61 first slide rail, 62 first slider, 63 first support plate, 64 test head, 7 blocking assembly, 71 blocking head, 72 second slide rail, 73 second slider, 74 second support plate, 8 airbag, 9 inflation assembly, 91 cylinder, 92 piston, 93 receiving groove, 94 air pipe, 95 piston rod, 10 limit assembly, 101 slide groove, 102 latch, 103 spring, 11 charger, 12 seal, 13 first inclined plane, 14 second inclined plane. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] like Figures 1 to 10 As shown, an OBC vehicle charger air tightness test device includes a workbench 1, a manipulator 2 arranged on the workbench 1, a slide rail 3 arranged on the workbench 1, and a tray 4 slidably arranged on the slide rail 3. The workbench 1 is provided with a test frame 5, and the test frame 5 is provided with several groups of test components 6 and several groups of blocking components 7. A single group of blocking components 7 includes several blocking heads 71, and an airbag 8 is provided on the blocking head 71. An inflatable component 9 is provided below the airbag 8. The inflatable component 9 includes a cylinder 91 and a cylinder 91 slidably provided on the cylinder. The piston 92 in the body 91, a limit assembly 10 is provided in the cylinder 91, the manipulator 2 is used to transfer the charger 11 placed on the tray 4 to the test stand 5, the blocking assembly 7 is used to use a plurality of blocking heads 71 to block a plurality of seals 12 on the charger 11 while pushing the piston 92 to slide, the inflation assembly 9 is used to inject gas into the airbag 8 when the piston 92 slides to seal the blockage, the limit assembly 10 is used to limit the piston 92, and the test assembly 6 is used to perform an airtight test on the charger 11.

[0033] Among them, such as Figure 4 and Figure 9 As shown, the single-group test assembly 6 includes a first slide rail 61 fixedly set on the test frame 5, a first slider 62 slidably set on the first slide rail 61, a first support plate 63 fixedly set on the first slider 62, and a test head 64 fixedly set on the first support plate 63, wherein the first slider 62 is connected to a driving device to drive the first support plate 63 and the first slider 62 to slide on the first slide rail 61, and the test head 64 is connected to an airtight testing device to perform an airtight test on the charger 11. This technology is an existing mature technology and will not be described in detail here. When in use, after the manipulator 2 transfers the charger 11 from the tray 4 to the test frame 5, the first support plate 63 and the test head 64 slide until the test head 64 is inserted into the test hole on the charger 11. After the airtight testing device is turned on, the charger 11 is airtight tested. After the airtight test is completed, the manipulator 2 transfers the charger 11 to the tray 4 to enter the next process, thereby improving the detection efficiency.

[0034] In addition, if Figures 5 to 10As shown, the single-group plugging assembly 7 also includes a second slide rail 72 fixedly mounted on the test frame 5, a second slider 73 slidably mounted on the second slide rail 72, and a second support plate 74 fixedly mounted on the second slider 73. A plurality of plugging heads 71 are respectively mounted on the first support plate 63 and the second support plate 74. The second slider 73 is connected to a driving device that drives the second support plate 74 and the second slider 73 to slide on the second slide rail 72. Furthermore, a cylinder is connected to the vertically mounted plugging head 71 to drive the plugging head 71 to rise and fall and slide. During use, the driving device simultaneously drives the first support plate 63 and the second support plate 74 to slide, so that the plugging head 71 mates with the seal 12 on the charger 11 to seal the seal 12. Subsequently, the test head 64 mates with the test hole, and then an airtightness test is performed. The plugging head 71 seals the seal 12 while simultaneously fixing the charger 11, thereby preventing deviation during the test and improving the test effect.

[0035] It should be further explained that if Figures 6 to 8 As shown, the inflation component 9 also includes a receiving groove 93 opened on the sealing head 71, an air pipe 94 fixedly connected between the airbag 8 and the cylinder 91, and a piston rod 95 slidably set on the sealing head 71. The airbag 8 is fixedly set in the receiving groove 93, the cylinder 91 is fixedly set on the sealing head 71, and the piston rod 95 is fixedly connected to the piston 92. The initial state of the piston rod 95 is outside the sealing head 71. During use, when the sealing head 71 is docked with the seal 12, the seal pushes the piston rod 95 to slide until the seal 12 is completely fitted with the sealing head 71. During this process, the piston 92 injects the gas in the cylinder 91 into the airbag 8 through the air pipe 94, causing the airbag 8 to swell. After the airbag 8 swells, it fits against the outer wall of the seal 12 to further seal the sealing area.

[0036] It is worth mentioning that Figures 6 to 8 As shown, the limiting assembly 10 includes a slide groove 101 provided on the inner wall of the cylinder 91, a latch 102 slidably set in the slide groove 101, and a spring 103 fixedly set between the piston 92 and the cylinder 91. A spring is connected between the latch 102 and the slide groove 101. In the initial state, the latch 102 contacts the piston 92, limiting the piston 92 so that the piston rod 95 extends outside the sealing head 12. When in use, when the sealing head 12 pushes the piston rod 95, The piston 92 is driven to push the pin 102 into the slide groove 101, so that the piston 92 slides and compresses the spring 103, and injects gas into the airbag 8. When the airtightness test is completed, the sealing head 71 is separated from the seal 12, and the piston rod 95 and the piston 92 are reset under the action of the spring 103. The piston 92 pushes the pin 102 into the slide groove 101 again. In this process, the gas is drawn back from the airbag 8 into the cylinder 91, and the airbag 8 retracts to prepare for the next sealing.

[0037] Furthermore, if Figure 8 As shown, first inclined surfaces 13 are provided on both sides of the latch 102, and second inclined surfaces 14 are provided on both sides of the piston 92. The first inclined surfaces 13 cooperate with the second inclined surfaces 14 to limit the piston 92 when passing through the first inclined surfaces 3 and the second inclined surfaces 14.

[0038] In addition, if Figure 8 As shown, the top of the piston rod 95 is configured to be spherical and provided with a rubber pad, which can reduce wear when the seal 12 pushes the piston rod 95.

[0039] Working process

[0040] After the manipulator 2 transfers the charger 11 from the tray 4 to the test stand 5, the driving device simultaneously drives the first support plate 63 and the second support plate 74 to slide, so that the sealing head 71 docks with the seal 12 on the charger 11 and seals the seal 12. During this process, the seal 12 drives the piston 92 to push the pin 102 into the slide groove 101, so that the piston 92 slides and compresses the spring 103, and injects gas into the airbag 8, so that the airbag 8 swells. After the airbag 8 swells, it fits against the outer wall of the seal 12 to further seal the blockage. Then the test head 64 docks with the test hole for an airtight test. When the airtight test is completed, the sealing head 71 is disengaged from the seal 12, and the piston rod 95 and the piston 92 are reset under the action of the spring 103. The piston 92 pushes the pin 102 into the slide groove 101 again. During this process, the piston 92 draws gas from the airbag 8 back into the cylinder 91, and the airbag 8 retracts to prepare for the next sealing.

[0041] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0042] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0043] What is described above in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. An OBC vehicle charger air tightness test device, comprising a workbench (1), a manipulator (2) arranged on the workbench (1), a slide rail (3) arranged on the workbench (1), and a tray (4) slidably arranged on the slide rail (3), characterized in that: The workbench (1) is provided with a test frame (5), and the test frame (5) is provided with a plurality of test components (6) and a plurality of plugging components (7), and a single plugging component (7) includes a plurality of plugging heads (71), and an air bag (8) is provided on the plugging head (71). An inflation component (9) is provided below the air bag (8), and the inflation component (9) includes a cylinder (91) and a piston (92) slidably provided in the cylinder (91). A limit component (10) is provided in the cylinder (91). The manipulator (2 ) is used to transfer the charger (11) placed on the tray (4) to the test stand (5); the sealing assembly (7) is used to use a plurality of sealing heads (71) to seal a plurality of sealing ports (12) on the charger (11) while pushing the piston (92) to slide; the inflation assembly (9) is used to inject gas into the airbag (8) when the piston (92) slides to seal the sealing portion; the limiting assembly (10) is used to limit the piston (92); and the testing assembly (6) is used to perform an airtight test on the charger (11).

2. An OBC vehicle charger air tightness test device according to claim 1, characterized in that: A single set of the test assembly (6) comprises a first slide rail (61) fixedly arranged on the test frame (5), a first slider (62) slidably arranged on the first slide rail (61), a first support plate (63) fixedly arranged on the first slider (62), and a test head (64) fixedly arranged on the first support plate (63).

3. The OBC vehicle charger air tightness test device according to claim 2, characterized in that: A single group of the blocking assembly (7) further comprises a second slide rail (72) fixedly arranged on the test frame (5), a second slider (73) slidably arranged on the second slide rail (72), and a second support plate (74) fixedly arranged on the second slider (73); and a plurality of blocking heads (71) are respectively arranged on the first support plate (63) and the second support plate (74).

4. The OBC vehicle charger air tightness test device according to claim 1, characterized in that: The inflation assembly (9) further comprises a receiving groove (93) provided on the plugging head (71), an air pipe (94) fixedly connected between the airbag (8) and the cylinder (91), and a piston rod (95) slidably arranged on the plugging head (71); the airbag (8) is fixedly arranged in the receiving groove (93), the cylinder (91) is fixedly arranged on the plugging head (71), and the piston rod (95) is fixedly connected to the piston (92).

5. The OBC vehicle charger air tightness test device according to claim 1, characterized in that: The limiting assembly (10) comprises a slide groove (101) provided on the inner wall of the cylinder (91), a latch (102) slidably arranged in the slide groove (101), and a spring (103) fixedly arranged between the piston (92) and the cylinder (91), wherein a spring is connected between the latch (102) and the slide groove (101).

6. The OBC vehicle charger air tightness test device according to claim 5, characterized in that: Both sides of the latch (102) are provided with first inclined surfaces (13), and both sides of the piston (92) are provided with second inclined surfaces (14), and the first inclined surfaces (13) and the second inclined surfaces (14) are matched.

7. The OBC vehicle charger air tightness test device according to claim 4, characterized in that: The top of the piston rod (95) is configured to be spherical and provided with a rubber pad.

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