Airtightness testing device for vehicle-mounted charging equipment

Abstract

The utility model discloses an air tightness testing device for vehicle-mounted charging equipment, which comprises a bottom plate, four supporting rods are fixedly mounted at the top end of the bottom plate, a top plate is fixedly mounted at the top ends of the supporting rods, a lower die is fixedly mounted at the top end of the bottom plate, and an upper die is movably mounted above the lower die. Upper connecting blocks are fixedly installed on the two sides of the upper die, lower connecting blocks are fixedly installed on the two sides of the lower die, the height position of the top end surface of each lower connecting block is larger than the height position of the top end surface of the lower die, and the height position of the bottom end surface of each upper connecting block is larger than the height position of the bottom end surface of the upper die. According to the utility model, through the cooperation of the movable rod and the semicircular sealing plate, when the device is used and the upper die and the lower die are closed, the semicircular sealing plate can be used for extruding and sealing the position of a wire, so that the condition of test gas leakage caused by a gap due to the flexibility of the wire is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight detection, in particular to an airtightness testing device for vehicle-mounted charging equipment. Background Technique

[0002] Before the shell of the vehicle-mounted charger leaves the factory, it is necessary to conduct airtightness detection on the cavity and water channels of the vehicle-mounted charger shell, that is, first use an airtightness detection fixture to fix the vehicle-mounted charger shell to be detected, and block / seal and connect each cavity port and each water channel port, and then use an airtightness tester to conduct airtightness detection.

[0003] When the existing airtightness testing device for vehicle-mounted charging equipment is in use, the flexibility of the wires often causes gaps between them and the die cavity of the mold, resulting in leakage of the test gas and affecting the detection results; therefore, it does not meet the existing requirements, and for this reason, we propose an airtightness testing device for vehicle-mounted charging equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide an airtightness testing device for vehicle-mounted charging equipment to solve the problems that when the airtightness testing device for vehicle-mounted charging equipment is in use, the flexibility of the wires often causes gaps between them and the die cavity of the mold, resulting in leakage of the test gas and affecting the detection results and other problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an airtightness testing device for vehicle-mounted charging equipment, including a bottom plate, four support rods are fixedly installed at the top end of the bottom plate, a top plate is fixedly installed at the top end of the support rods, a lower mold is fixedly installed at the top end of the bottom plate, an upper mold is movably installed above the lower mold, upper connection blocks are fixedly installed on both sides of the upper mold, lower connection blocks are fixedly installed on both sides of the lower mold, the height position of the top surface of the lower connection block is higher than the height position of the top surface of the lower mold, and the height position of the bottom surface of the upper connection block is higher than the height position of the bottom surface of the upper mold.

[0006] Preferably, mold cavities are provided at the bottom end of the upper mold and the top end of the lower mold. Spring grooves are provided on both sides of the mold cavity at the bottom end of the upper mold. Moving rods are slidably installed inside the spring grooves. Semi-circular sealing plates are fixedly installed at the bottom ends of the moving rods. Compression springs are movably installed between the moving rods and the inside of the spring grooves.

[0007] Preferably, a vehicle-mounted charger is provided inside the mold cavity. Wires are provided on both sides of the vehicle-mounted charger. The wires are movably clamped into the inside of the semi-circular sealing plates.

[0008] Preferably, wire moving grooves are provided between the top end of the lower mold and the top surface of the lower connection block. The wires are movably clamped into the inside of the wire moving grooves.

[0009] Preferably, an electric push rod is fixedly installed at the top end of the top plate. The output end of the electric push rod is fixedly connected to the top end of the upper mold. Guide rods are movably installed on both sides of the top end of the top plate. The bottom ends of the guide rods are fixedly connected to the top end of the upper mold.

[0010] Preferably, a plurality of air pumps are provided inside the lower mold. The output end of the air pump is connected to an air delivery channel, and the air delivery channel is connected to the inside of the mold cavity in a penetrating manner.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the cooperation of the movable rod and the semi-circular sealing plate, when the upper mold and the lower mold are closed during the use of the device, the position of the wire can be squeezed and sealed by the semi-circular sealing plate, avoiding the leakage of the test gas caused by the gap due to the flexibility of the wire.

[0013] 2. Through the cooperation of the lower connecting block and the upper connecting block, when the upper mold and the lower mold are closed, due to the height difference between the lower connecting block and the lower mold and between the upper connecting block and the upper mold, an additional space for the wire activity groove is generated at the mold cavity position between the lower connecting block and the lower mold and between the upper connecting block and the upper mold. Thus, the wire can have a small activity space inside the wire activity groove. While avoiding wire breakage, through the extrusion of the wire by the semi-circular sealing plate, the wire is bent to improve the sealing degree of the mold cavity at the wire position, further avoiding gas leakage and reducing the detection error. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a front cross-sectional view of the whole of the present utility model;

[0016] Figure 3 is a side cross-sectional view of the whole of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 partial structural schematic diagram when part A is closed in.

[0018] In the figure: 1, bottom plate; 2, support rod; 3, top plate; 4, electric push rod; 5, guide rod; 6, upper mold; 7, lower mold; 8, vehicle charger; 9, wire; 10, lower connecting block; 11, upper connecting block; 12, mold cavity; 13, air pump; 14, air delivery channel; 15, spring groove; 16, movable rod; 17, compression spring; 18, semi-circular sealing plate; 19, wire activity groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figures 1 to 4 , an embodiment provided by the present utility model: an airtightness test device for an in-vehicle charging device, including a bottom plate 1. Four support rods 2 are fixedly installed at the top end of the bottom plate 1. A top plate 3 is fixedly installed at the top end of the support rods 2. A lower mold 7 is fixedly installed at the top end of the bottom plate 1. An upper mold 6 is movably installed above the lower mold 7. Upper connection blocks 11 are fixedly installed on both sides of the upper mold 6. Lower connection blocks 10 are fixedly installed on both sides of the lower mold 7. The height position of the top surface of the lower connection block 10 is higher than the height position of the top surface of the lower mold 7. The height position of the bottom surface of the upper connection block 11 is higher than the height position of the bottom surface of the upper mold 6.

[0021] Through the cooperation of the lower connection block 10 and the upper connection block 11, when the upper mold 6 and the lower mold 7 are closed, due to the height difference between the lower connection block 10 and the lower mold 7 and between the upper connection block 11 and the upper mold 6, an extra space for the wire activity groove 19 is generated at the cavity 12 position between the lower connection block 10 and the lower mold 7 and between the upper connection block 11 and the upper mold 6. Furthermore, the wire 9 can have a small activity space inside the wire activity groove 19. While avoiding the breakage of the wire 9, through the extrusion of the semi-circular sealing plate 18 on the wire 9, the wire 9 is bent to improve the sealing degree of the cavity 12 at the wire 9 position, further avoiding the situation of gas leakage and reducing the detection error.

[0022] Both the bottom end of the upper mold 6 and the top end of the lower mold 7 are provided with cavities 12. Spring grooves 15 are provided on both sides of the cavity 12 at the bottom end of the upper mold 6. Moving rods 16 are slidably installed inside the spring grooves 15. Semi-circular sealing plates 18 are fixedly installed at the bottom ends of the moving rods 16. Compression springs 17 are movably installed between the moving rods 16 and the inside of the spring grooves 15.

[0023] Through the cooperation of the moving rod 16 and the semi-circular sealing plate 18, when the device is in use and the upper mold 6 and the lower mold 7 are closed, the position of the wire 9 can be squeezed and sealed by the semi-circular sealing plate 18, avoiding the situation of test gas leakage due to gaps caused by the flexibility of the wire 9.

[0024] An in-vehicle charger 8 is provided inside the cavity 12. Wires 9 are provided on both sides of the in-vehicle charger 8. The wires 9 are all movably clamped into the inside of the semi-circular sealing plates 18.

[0025] Wire activity grooves 19 are provided between the top end of the lower mold 7 and the top surface of the lower connection block 10. The wires 9 are all movably clamped into the inside of the wire activity grooves 19.

[0026] An electric push rod 4 is fixedly installed at the top end of the top plate 3. The output end of the electric push rod 4 is fixedly connected to the top end of the upper mold 6. Guide rods 5 are movably installed on both sides of the top end of the top plate 3, and the bottom ends of the guide rods 5 are fixedly connected to the top end of the upper mold 6.

[0027] A plurality of air pumps 13 are provided inside the lower mold 7. The output end of the air pump 13 is connected to an air delivery channel 14, and the air delivery channel 14 is connected to the inside of the mold cavity 12 in a penetrating manner.

[0028] When the airtightness testing device for the in-vehicle charging device is in use, first place the in-vehicle charger 8 inside the mold cavity 12 and put the electric wire 9 into the mold cavity 12 at the same time. Then, drive the output end to descend through the electric push rod 4 to close the upper mold 6 and the lower mold 7. At this time, the bottom surface of the semi-circular sealing plate 18 will contact the surface of the electric wire 9, and due to the elasticity of the compression spring 17, the semi-circular sealing plate 18 is pushed to squeeze the surface of the electric wire 9, so that the electric wire 9 is completely squeezed into the mold cavity 12, avoiding the situation of gas leakage caused by the gap between the electric wire 9 and the mold cavity 12. Then, inflate the in-vehicle charger 8 through the air pump 13 and the air delivery channel 14 to detect the airtightness. After the detection is completed, drive the output end of the electric push rod 4 to rise to open the upper mold 6, and take out the in-vehicle charger 8 from the mold cavity 12.

[0029] When the upper mold 6 and the lower mold 7 are closed, due to the height difference between the lower connecting block 10 and the lower mold 7 and between the upper connecting block 11 and the upper mold 6, an additional space for the electric wire activity groove 19 is generated at the position of the mold cavity 12 between the lower connecting block 10 and the lower mold 7 and between the upper connecting block 11 and the upper mold 6. Furthermore, the electric wire 9 can have a small activity space inside the electric wire activity groove 19. While avoiding the breakage of the electric wire 9, through the extrusion of the electric wire 9 by the semi-circular sealing plate 18, the electric wire 9 is bent to improve the sealing degree of the mold cavity 12 at the position of the electric wire 9, further avoiding the situation of gas leakage and reducing the detection error.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A vehicle-mounted charging equipment air tightness test device, comprising a base plate (1), characterized in that: Four support rods (2) are fixedly mounted on the top of the bottom plate (1), a top plate (3) is fixedly mounted on the top of the support rods (2), a lower mold (7) is fixedly mounted on the top of the bottom plate (1), an upper mold (6) is movably mounted above the lower mold (7), upper connecting blocks (11) are fixedly mounted on both sides of the upper mold (6), lower connecting blocks (10) are fixedly mounted on both sides of the lower mold (7), the top surface height position of the lower connecting block (10) is higher than the top surface height position of the lower mold (7), and the bottom surface height position of the upper connecting block (11) is higher than the bottom surface height position of the upper mold (6).

2. The air tightness testing device for vehicle-mounted charging equipment according to claim 1, characterized in that: The bottom end of the upper mold (6) and the top end of the lower mold (7) are both provided with a mold cavity (12), and spring grooves (15) are provided on both sides of the mold cavity (12) at the bottom end of the upper mold (6). A movable rod (16) is slidably installed inside the spring groove (15), and a semicircular sealing plate (18) is fixedly installed at the bottom end of the movable rod (16). A compression spring (17) is movably installed between the movable rod (16) and the inside of the spring groove (15).

3. The air tightness testing device for vehicle-mounted charging equipment according to claim 2, characterized in that: An on-board charger (8) is provided inside the mold cavity (12), and electric wires (9) are provided on both sides of the on-board charger (8), and the electric wires (9) are movably inserted into the interior of the semicircular sealing plate (18).

4. The air tightness testing device for vehicle-mounted charging equipment according to claim 1, characterized in that: A wire movable groove (19) is provided between the top end of the lower mold (7) and the top end surface of the lower connecting block (10), and the wires (9) are movably inserted into the wire movable groove (19).

5. The air tightness testing device for vehicle-mounted charging equipment according to claim 1, characterized in that: An electric push rod (4) is fixedly mounted on the top of the top plate (3), and the output end of the electric push rod (4) is fixedly connected to the top of the upper mold (6). Guide rods (5) are movably mounted on both sides of the top of the top plate (3), and the bottom ends of the guide rods (5) are fixedly connected to the top of the upper mold (6).

6. The air tightness testing device for vehicle-mounted charging equipment according to claim 1, characterized in that: A plurality of air pumps (13) are arranged inside the lower mould (7); the output ends of the air pumps (13) are connected to air delivery channels (14); and the air delivery channels (14) are connected through the interior of the mould cavity (12).

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