New energy lower box airtightness detection rapid plugging mechanism

Abstract

The utility model relates to a new energy lower box airtightness detection rapid plugging mechanism comprising a sealing cylinder, the sealing cylinder is provided with three output shafts which are arranged at equal intervals and are located on the same straight line, and the front ends of the three output shafts are fixedly connected with a sealing cylinder front pressing plate of a rectangular plate-shaped structure. The front surface of a front pressing plate of the sealing air cylinder is fixedly connected with a sealing plate of a rectangular plate-shaped structure through a plurality of screws, the front surface of the sealing plate is provided with a sealing U-shaped groove matched with a sealing strip pressing connection area on the periphery of a to-be-detected airtight opening in the surface of the lower box body component in shape, and a circular sealing strip is inserted into the sealing U-shaped groove. The sealing strip is formed by cutting a strip-shaped circular sealing strip according to the shape length of a U-shaped groove and bonding the strip-shaped circular sealing strip with special glue for a silica gel sealing strip, the outer diameter of the sealing strip is slightly larger than the width of the U-shaped groove, the largest position of the sealing strip is clamped at the linear section position of the U-shaped groove, the bottom of the sealing strip is inserted into the bottom face of the sealing U-shaped groove and is arranged in an interference mode, and the phi 5 sealing strip is 1.5 mm higher than the surface of the sealing U-shaped groove, so that 30% of compression amount is guaranteed.

Description

Technical Field

[0001] The utility model relates to a new energy lower box air tightness detection rapid blocking mechanism, belonging to the technical field of new energy detection. Background Art

[0002] At present, the battery pack box assembly is the power source of new energy vehicles, and the safety of the battery pack box assembly performance determines the safety of the entire vehicle. Since the battery pack box assembly is arranged under the body of the new energy vehicle, especially when the vehicle is wading or soaked in water, the box must be able to withstand a certain amount of water pressure. If the battery pack is flooded, it will seriously affect its use function and even cause short circuit and fire risks. Therefore, the sealing of the battery pack is a crucial safety function for pure electric vehicles.

[0003] The present invention is a rapid sealing structure that solves the problem of airtight blocking of peripheral interfaces such as connectors in the lower box of the battery pack during airtight testing. It can solve the problems of over-blocking, high cost of making sealing gaskets, and the need for manual auxiliary locking in traditional blocking; it can design the sealing range and sealing method equivalent to the counterpart for different interfaces, effectively solving the problem of over-blocking during the blocking process, and hidden leakage hazards being covered and undetectable; it also solves the problem of high labor consumption and slow rhythm in manual auxiliary locking.

[0004] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a new energy lower box airtight detection rapid sealing mechanism to make it more valuable for industrial use. Summary of the invention

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a new energy lower box airtight detection rapid sealing mechanism.

[0006] The utility model discloses a new energy lower box airtight detection rapid sealing mechanism, including a sealing cylinder, which is arranged on an airtight test fixture to provide a pressing sealing power, and uses a sealing cylinder to automatically control the sealing, thereby solving the problem that traditional bolt locking and sealing takes up manpower and affects the production line rhythm, reduces the labor intensity of workers, and is easier to realize automatic control; the sealing cylinder has three output shafts which are equidistantly arranged and located on the same straight line, and the front ends of the three output shafts are fixedly connected with a sealing cylinder front pressure plate of a rectangular plate structure, and the three output shafts are equidistantly arranged and located on the same straight line, thereby solving the rotation problem of the airtight detection rapid sealing mechanism and ensuring that each pressing position is within a uniform range; the sealing cylinder also provides pressing power When the force on the front pressure plate of the sealing cylinder is more uniform, the sealing stability is improved; the front surface of the front pressure plate of the sealing cylinder is fixedly connected with a sealing plate of rectangular plate structure by multiple screws, and the front surface of the sealing plate is provided with a sealing U-shaped groove matching the shape of the sealing strip crimping area around the airtight opening to be inspected on the surface of the lower box body component, and a circular silicone sealing strip is inserted inside the sealing U-shaped groove, and the silicone sealing strip is made of a strip of circular sealing strip cut according to the shape and length of the U-shaped groove and bonded with a special glue for silicone sealing strips. The outer diameter of the sealing strip is slightly larger than the width of the U-shaped groove, and the largest part of the sealing strip is stuck in the straight section of the U-shaped groove. The bottom of the sealing strip is inserted into the bottom surface of the sealing U-shaped groove and is set with interference, and the 5mm diameter sealing strip is 1.5mm higher than the surface of the sealing U-shaped groove. The part of the sealing strip that is higher than the surface of the sealing U-shaped groove is used to achieve a tight seal with the sealing strip crimping area, and ensure that the compression rate of the sealing strip is less than or equal to 30%.

[0007] Furthermore, a front pressure plate fixing screw hole is provided at each of the four corners of the front pressure plate of the sealing cylinder of the rectangular plate-shaped structure.

[0008] Furthermore, each of the four corners of the sealing plate of the plate-like structure is provided with a sealing plate fixing screw hole, and the sealing plate fixing screw hole and the front pressure plate fixing screw hole are provided correspondingly, and the front pressure plate of the sealing cylinder and the sealing plate are fixedly connected together by screws passing through the sealing plate fixing screw hole and the front pressure plate fixing screw hole. At the same time, the point pressure originally provided by the three output shafts is converted into the surface pressure after connection, thereby improving the force uniformity of the press seal and improving the sealing stability;

[0009] Furthermore, the inner area of ​​the sealing U-shaped groove of the sealing plate is a sealing surface, and the sealing surface can cover the entire airtight opening to be inspected and the surrounding mounting holes.

[0010] Furthermore, the sealing strip is made of silicone foam or silicone strip.

[0011] Furthermore, the sealing strip is a cylindrical structure, and the diameter of the sealing strip is 5 mm.

[0012] Furthermore, the depth of the sealed U-shaped groove is 3.5 mm. The requirement of controlling the compression rate not to exceed 30% is met by accurately controlling the depth of the sealed U-shaped groove.

[0013] Furthermore, the sealing strip is slightly larger than the straight section of the U-shaped groove, so that the sealing strip is clamped in the U-shaped groove and does not fall off.

[0014] Furthermore, the surface roughness value Ra of the sealing U-shaped groove is less than or equal to 1.6 microns, ensuring sealing reliability.

[0015] By means of the above scheme, the present invention has at least the following advantages:

[0016] 1. The utility model's new energy lower box air tightness detection rapid plugging mechanism is equivalent to the sealing range and sealing method of connectors, explosion-proof valves and other counterparts, solving the problem of full-surface plugging and over-plugging, and all leakage points that need to be detected can be detected;

[0017] 2. The utility model uses a foamed silicone seal strip to replace the entire silicone pad in the air tightness detection rapid sealing mechanism of the new energy lower box. The foamed silicone seal strip is easier to purchase and is very cheap. No matter what shape the sealing requirement is, it only needs to cut an equivalent length of the foamed silicone seal strip and embed it into the sealing groove to solve it, which is convenient and quick;

[0018] 3. U-shaped groove precise depth control to meet the compression rate control requirement of no more than 30%.

[0019] 4. The utility model's new energy lower box air tightness detection rapid sealing mechanism uses a cylinder to automatically control the sealing, which solves the problem that bolt locking and sealing takes up manpower and affects the production line rhythm, reduces the labor intensity of workers, and makes it easier to achieve automatic control.

[0020] 5. Solved the problem of 3M silicone foam sealing, which is prone to leakage and causes misjudgment.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1It is a schematic diagram of the explosion structure of the utility model of the new energy lower box airtight detection rapid blocking mechanism;

[0024] Figure 2 This is a schematic diagram of the overall structure of the utility model of the new energy lower box airtight detection rapid blocking mechanism;

[0025] Figure 3 It is a structural schematic diagram of the sealing plate in the utility model of the new energy lower box airtight detection rapid blocking mechanism;

[0026] Figure 4 It is a cross-sectional view of the sealing plate in the quick sealing mechanism for air tightness detection of the lower box of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the lower box parts in the utility model of the new energy lower box air tightness detection rapid blocking mechanism;

[0028] Among them, in the figure:

[0029] 1. Sealing cylinder; 2. Sealing cylinder front pressure plate; 3. Sealing plate; 4. Sealing strip; 5. Lower box parts;

[0030] 11. Output shaft;

[0031] 21. Front pressure plate fixing screw holes;

[0032] 31. Sealing plate fixing screw hole; 32. Sealing U-shaped groove; 33. Sealing surface;

[0033] 51. Airtight opening to be inspected; 52. Sealing strip crimping area. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] See also Figures 1 to 5, a new energy lower box airtight detection rapid sealing mechanism described in a preferred embodiment of the utility model includes a sealing cylinder 1, which is arranged on an airtight test tooling to provide a sealing power for pressing, and the sealing cylinder 1 is used to automatically control the sealing, so as to solve the problem that the traditional bolt locking and sealing takes up manpower and affects the production line rhythm, reduce the labor intensity of workers, and make it easier to realize automatic control; the sealing cylinder 1 has three output shafts 11 which are equidistantly arranged and located on the same straight line, and the front ends of the three output shafts 11 are fixedly connected with a sealing cylinder front pressure plate 2 with a rectangular plate-like structure, and the three output shafts 11 are equidistantly arranged and located on the same straight line, so as to solve the rotation problem of the airtight detection rapid sealing mechanism, and ensure that each pressing position is The sealing cylinder 1 is within the same range; when the sealing cylinder 1 provides the pressing power, the force on the front pressure plate 2 of the sealing cylinder is more uniform, thereby improving the sealing stability; the front surface of the front pressure plate 2 of the sealing cylinder is fixedly connected with a sealing plate 3 of a rectangular plate structure by a plurality of screws, and the front surface of the sealing plate 3 is provided with a sealing U-shaped groove 32 matching the shape of the sealing strip crimping area 52 around the airtight opening 51 to be inspected on the surface of the lower box body 5, and a sealing strip 4 matching its shape is inserted inside the sealing U-shaped groove 32, and the outer diameter of the sealing strip is slightly larger than the width of the U-shaped groove, and the largest part of the sealing strip is stuck in the straight section of the U-shaped groove, and the bottom of the sealing strip 4 is inserted into the bottom surface of the sealing U-shaped groove 32 and is set with interference, and the sealing strip 4 is 1.5mm higher than the surface of the sealing U-shaped groove 32. The part of the sealing strip 4 that is higher than the surface of the sealing U-shaped groove 32 is used to achieve a tight seal with the sealing strip crimping area 52, and ensure that the compression rate of the sealing strip is less than or equal to 30%.

[0036] The four corners of the sealing cylinder front pressure plate 2 of the rectangular plate structure are each provided with a front pressure plate fixing screw hole 21;

[0037] The sealing plate 3 of the plate-like structure is provided with a sealing plate fixing screw hole 31 at each of the four corners. The sealing plate fixing screw hole 31 and the front pressure plate fixing screw hole 21 are provided correspondingly. The front pressure plate 2 of the sealing cylinder and the sealing plate 3 are fixedly connected together by screws passing through the sealing plate fixing screw hole 31 and the front pressure plate fixing screw hole 21. At the same time, the point pressure originally provided by the three output shafts 11 is converted into the surface pressure after connection, thereby improving the force uniformity of the press seal and improving the sealing stability;

[0038] The inner area of ​​the sealing U-shaped groove 32 of the sealing plate 3 is a sealing surface 33 , and the sealing surface 33 can cover the entire airtight opening 51 to be inspected and the mounting holes around it.

[0039] The sealing strip 4 is made of silicone foam or silicone rubber.

[0040] The sealing strip 4 is a cylindrical structure, and the diameter of the sealing strip 4 is 5 mm.

[0041] The depth of the sealing U-shaped groove 32 is 3.5 mm. The depth of the sealing U-shaped groove 32 is precisely controlled to meet the control requirement that the compression rate does not exceed 30%.

[0042] The working principle of the utility model is as follows:

[0043] In actual use:

[0044] 1. Design the sealing range and sealing method according to the interface counterpart that needs to be sealed, and make the sealing plate 3 and the sealing U-shaped groove 32.

[0045] 2. Fasten the sealing plate 3 to the sealing cylinder front pressure plate 2 of the sealing cylinder 1 and position it on the airtight test fixture.

[0046] 3. The lower box component 5 to be tested is positioned and pressed onto the airtight tooling.

[0047] 4. Start the switch of sealing cylinder 1, sealing cylinder 1 moves, and the sealing cylinder front pressure plate 2 of sealing cylinder 1 moves forward, and the sealing cylinder front pressure plate 2 drives the sealing plate 3 to move forward. The cylinder front driving force makes the sealing plate 3 together with the sealing strip 4 fit tightly with the airtight opening 51 to be inspected on the surface of the lower box component 5, thereby achieving a blocking and sealing effect.

[0048] 5. After the airtightness test is completed, the sealing cylinder 1 retreats, driving the front pressure plate 2 of the sealing cylinder, the sealing plate 3, and the sealing strip 4 to retreat together, and the sealing action is completed;

[0049] Such a cycle can complete the rapid sealing of the air tightness detection of the new energy lower box.

[0050] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0051] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0052] Finally: The above description is only a preferred implementation mode of the present utility model and is not intended to limit the present utility model. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A new energy lower box air tightness detection rapid sealing mechanism, characterized by: It comprises a sealing cylinder, which has three output shafts which are equidistantly arranged and located on the same straight line, the front ends of the three output shafts are fixedly connected with a sealing cylinder front pressure plate with a rectangular plate-like structure, the front surface of the sealing cylinder front pressure plate is fixedly connected with a sealing plate with a rectangular plate-like structure by a plurality of screws, the front surface of the sealing plate is provided with a sealing U-shaped groove which matches the shape of the crimping area of ​​the sealing strip around the airtight opening to be inspected on the surface of the lower box body component, a sealing strip which matches its shape is inserted inside the sealing U-shaped groove, the bottom of the sealing strip is inserted into the bottom surface of the sealing U-shaped groove and is set with interference fit, and the sealing strip is 1.5 mm higher than the surface of the sealing U-shaped groove.

2. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: Four corners of the front pressure plate of the sealing cylinder with a rectangular plate structure are respectively provided with a front pressure plate fixing screw hole.

3. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: A sealing plate fixing screw hole is provided at each of the four corners of the sealing plate of the plate-like structure. The sealing plate fixing screw holes and the front pressure plate fixing screw holes are provided correspondingly. The front pressure plate of the sealing cylinder and the sealing plate are fixedly connected together by screws passing through the sealing plate fixing screw holes and the front pressure plate fixing screw holes.

4. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: The inner area of ​​the sealing U-shaped groove of the sealing plate is a sealing surface.

5. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: The sealing strip is made of silicone.

6. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: The sealing strip is a cylindrical structure, and the diameter of the sealing strip is 5 mm.

7. According to claim 1, a new energy lower box airtight detection rapid sealing mechanism is characterized by: The depth of the sealing U-shaped groove is 3.5 mm.

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