Air tightness detection device applied to electric control box body of new energy automobile

Abstract

The utility model provides an air tightness detection device applied to an electric control box body of a new energy automobile, which comprises a bottom plate, a clamping block arranged on the bottom plate and an installation block matched with the clamping block, the clamping block is inserted into a corresponding open slot of the electric control box body, the installation block is movably arranged on the bottom plate and is controlled to move through a driving piece, and the clamping block is arranged on the bottom plate. And the clamping block is matched with the clamping block to clamp the electric control box body. The driving member is manually operated by a person, pushes the guide rod to move in a telescopic manner, and performs self-locking fixation after reaching a specified position, so that the inner cavity of the to-be-detected electric control box body is rapidly switched between a blocked state and an open state, and the detection efficiency of the person on the electric control box body is improved. The sealing plug blocks a line pipe opening in one side of the electric control box body, the ventilation plug abuts against a line pipe opening in the other side of the electric control box body, the ventilation plug is externally communicated with an air supply pipe so that air can be injected into the electric control box body, the electric control box body is placed in water so that the air tightness condition of the electric control box body can be detected, the production efficiency can be improved, and the reject ratio of products can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection equipment, in particular to an air tightness detection device applied to an electric control box of a new energy vehicle. Background Art

[0002] The air tightness requirements for the electronic control box of new energy vehicles are very strict. In the actual production process, due to force majeure factors such as equipment, production technology and raw materials, some products have tiny shrinkage holes that are invisible to the human eye, resulting in air tightness that cannot meet the requirements. Therefore, an air tightness detection device is needed to identify unqualified products. Utility Model Content

[0003] The technical problem solved by the utility model is to provide an air tightness detection device applied to the electric control box of a new energy vehicle, so as to solve the problems raised in the above-mentioned background technology.

[0004] The technical problem solved by the utility model is achieved by the following technical solution: an air tightness detection device applied to an electric control box of a new energy vehicle, comprising a bottom plate, a clamping block mounted on the bottom plate, and a mounting block arranged in cooperation with the clamping block, the clamping block being inserted into a slot corresponding to the electric control box, the mounting block being movably arranged on the bottom plate, and being controlled to move by a driving member, so as to clamp the electric control box by cooperating with the clamping block;

[0005] A sealing plug and a vent plug for sealing the line pipe opening on the electric control box are provided on one side of the mounting block. The vent plug is fixed in the vent screw hole corresponding to the mounting block by a hollow screw. An air pipe joint is installed on the side of the vent screw hole away from the vent plug. The air pipe joint is externally connected to an air supply pipe to add gas into the electric control box. The electric control box is placed in water to detect the air tightness of the electric control box.

[0006] As a further solution of the utility model:

[0007] The sealing plug and the ventilation plug are arranged in parallel corresponding to the wire pipe openings, and the mounting blocks are respectively provided with mounting holes corresponding to the sealing plug and the ventilation plug. One side of the sealing plug and the ventilation plug is respectively provided with a convex body, which is inserted into the mounting hole to improve the stability of the installation.

[0008] As a further solution of the utility model:

[0009] The sealing plug and the vent plug are respectively provided with axial holes in the middle to allow screws to pass through. The sealing plug is installed in the corresponding fixing screw holes of the mounting block through fixing screws. The outer ends of the sealing plug and the vent plug are respectively provided with sealing rubber pads to press against the outer ends of the online pipe openings to increase the sealing performance.

[0010] As a further solution of the utility model:

[0011] One side of the mounting block facing the bottom plate is provided with a guiding block, and a guiding plate is installed on the bottom plate corresponding to the guiding block. The guiding plates are symmetrically installed on both sides of the bottom plate, and a guiding groove is formed between the two groups of guiding plates. The guiding block slides in the guiding groove to limit the left and right movement of the mounting block.

[0012] As a further solution of the present utility model:

[0013] The driving member includes a backing plate fixedly installed on the bottom plate and a bracket arranged on the backing plate. One side of the bracket is fixedly installed with a guide sleeve, and a guide rod is slidably installed in the guide sleeve. A push rod is rotatably installed on the side of the bracket away from the guide sleeve. The bent part of the push rod is rotatably connected to a connecting rod and is rotatably connected to the guide rod through the connecting rod, so as to control the telescopic movement of the guide rod through the push rod. One side of the guide rod is fixedly connected to the mounting block through a locking screw.

[0014] As a further solution of the present utility model:

[0015] The guide rod is provided with a locking screw hole, and the mounting block is provided with a stepped hole corresponding to the locking screw. The locking screw penetrates through the stepped hole and is inserted into the locking screw hole to be threadedly connected with the guide rod. A nut is also threadedly installed between the locking screw and the mounting block to abut against the guide rod or the mounting block through the nut, so as to lock and fix the mounting block or the locking screw.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The driving member is manually operated by a person to push the guide rod to telescopically move and perform self-locking fixation after reaching the specified position, realizing the rapid switching between the sealed state and the open state of the inner cavity of the electric control box to be measured, and improving the detection efficiency of the electric control box by the person. The sealing plug seals the wire pipe orifice on one side of the electric control box, and the air vent plug abuts against the wire pipe orifice on the other side of the electric control box. The air vent plug is externally connected to a gas supply pipe to inject gas into the electric control box. The electric control box is placed in water to detect the airtightness of the electric control box, improving the production efficiency and reducing the unqualified rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view structural schematic diagram of the present utility model;

[0018] Figure 2 It is a front view structural schematic diagram of the present utility model;

[0019] Figure 3 It is a partial sectional view structural schematic diagram of the present utility model;

[0020] Figure 4 It is a structural schematic diagram of the driving member of the present utility model;

[0021] Identifications in the figure: 1. Bottom plate; 2. Clamping block; 3. Mounting block; 4. Electric control box body; 5. Guide plate; 6. Spacer; 31. Sealing plug; 32. Venting plug; 33. Hollow screw; 34. Air pipe joint; 35. Convex body; 36. Fixing screw; 37. Guide block; 41. Wire pipe orifice; 61. Bracket; 62. Guide sleeve; 63. Guide rod; 64. Push rod; 65. Connecting rod; 66. Locking screw; 67. Locking screw hole; 68. Step hole; 69. Nut. Detailed implementation

[0022] In order to make the implementation means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific illustrations.

[0023] As Figures 1 to 4 shown,

[0024] This embodiment provides an airtightness detection device applied to the electric control box body of a new energy vehicle, including a bottom plate 1, a clamping block 2 installed on the bottom plate 1, and a mounting block 3 arranged in cooperation with the clamping block 2. The clamping block 2 is inserted into a corresponding slot of the electric control box body 4. The mounting block 3 is movably arranged on the bottom plate 1 and is controlled to move by a driving member to clamp the electric control box body 4 in cooperation with the clamping block 2.

[0025] One side of the mounting block 3 is provided with a sealing plug 31 and a venting plug 32 for blocking the wire pipe orifice 41 on the electric control box body 4. The venting plug 32 is fixed in a corresponding venting screw hole of the mounting block 3 through a hollow screw 33. An air pipe joint 34 is installed on the side of the venting screw hole away from the venting plug 32. The air pipe joint 34 is externally connected to a gas supply pipe to inject gas into the electric control box body 4. The electric control box body 4 is placed in water to detect the airtightness of the electric control box body 4.

[0026] In this embodiment, the sealing plug 31 and the venting plug 32 are arranged in parallel corresponding to the wire pipe orifice 41. The mounting block 3 is respectively provided with mounting holes corresponding to the sealing plug 31 and the venting plug 32. One side of the sealing plug 31 and the venting plug 32 is respectively provided with a convex body 35, and the convex body 35 is inserted into the mounting hole to improve the installation stability.

[0027] The middle parts of the sealing plug 31 and the venting plug 32 are respectively provided with shaft holes to enable a screw to pass through. The sealing plug 31 is installed in a corresponding fixing screw hole of the mounting block 3 through a fixing screw 36. The outer ends of the sealing plug 31 and the venting plug 32 are respectively provided with sealing rubber pads to abut against the outer end of the wire pipe orifice 41 to increase the sealing performance.

[0028] In this embodiment, a guiding block 37 is provided on one side of the mounting block 3 facing the bottom plate 1. A guiding plate 5 is mounted on the bottom plate 1 corresponding to the guiding block 37. The guiding plates 5 are symmetrically mounted on both sides of the bottom plate 1, and a guiding groove 51 is formed between the two groups of guiding plates 5. The guiding block 37 slides in the guiding groove 51 to limit the left-right movement of the mounting block 3.

[0029] In this embodiment, the driving member includes a backing plate 6 fixedly mounted on the bottom plate 1 and a bracket 61 provided on the backing plate 6. A guide sleeve 62 is fixedly mounted on one side of the bracket 61. A guide rod 63 is slidably mounted in the guide sleeve 62. A push rod 64 is rotatably mounted on the side of the bracket 61 away from the guide sleeve 62. The bent portion of the push rod 64 is rotatably connected to a connecting rod 65 and is rotatably connected to the guide rod 63 through the connecting rod 65, so as to control the telescopic movement of the guide rod 63 through the push rod 64. One side of the guide rod 63 is fixedly connected to the mounting block through a locking screw 66.

[0030] A locking screw hole 67 is provided in the guide rod 63. A stepped hole 68 is provided in the mounting block 3 corresponding to the locking screw 66. The locking screw 66 passes through the stepped hole 68 and is inserted into the locking screw hole 67 to be threadedly connected to the guide rod 63. A nut 69 is also threadedly mounted between the locking screw 66 and the mounting block 3 to abut against the guide rod 63 or the mounting block 3 through the nut 69, so as to lock and fix the mounting block 3 or the locking screw 66.

[0031] The working principle of the present utility model is as follows: Place the electric control box body 4 to be tested on the bottom plate 1, so that one end of the electric control box body 4 abuts against the clamping block 2, and the other end controls the mounting block 3 to move along the guiding groove 51 through the driving member, and abut against the outer end of the wire pipe opening 41 through the sealing plug 31 and the ventilation plug 32 to clamp and fix the electric control box body 4 and seal the wire pipe opening 41. At this time, the driving member is in a self-locking state. Immerse the electric control box body 4 and the detection device in water together. At this time, open the external air source to inject gas into the electric control box body 4 through the air supply pipe and the pipe joint 34, and observe whether there are bubbles emerging. If there are bubbles, it means the product is unqualified; if there are no bubbles, it is qualified. After a certain period of time, take out the electric control box body 4 and the detection device, push the push rod 64 to rotate to pull the guide rod 63 backward, thereby driving the mounting block 3 to move outward to release the electric control box body 4, and cycle in turn.

[0032] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection of the present utility model is defined by the appended claims and their equivalents. It should be noted that in this text, if there are relative terms such as first and second, they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. An airtightness detection device applied to the electronic control box of a new energy vehicle, characterized in that: It includes a bottom plate, a clamping block installed on the bottom plate, and a mounting block arranged in cooperation with the clamping block. The clamping block is inserted into a corresponding slot in the electric control box body. The mounting block is movably arranged on the bottom plate and is controlled to move by a driving member so as to clamp the electric control box body in cooperation with the clamping block. One side of the mounting block is provided with a sealing plug and a ventilation plug for blocking the upper wire pipe orifice of the electric control box body. The ventilation plug is fixed in a corresponding ventilation screw hole of the mounting block through a hollow screw. A trachea joint is installed on one side of the ventilation screw hole away from the ventilation plug, and the trachea joint is externally connected to a gas supply pipe to inject gas into the electric control box body. The electric control box body is placed in water to detect the airtightness of the electric control box body.

2. The airtightness detection device for the electric control box of a new energy vehicle according to claim 1, characterized in that: The sealing plug and the ventilation plug are arranged side by side corresponding to the wire pipe orifice. Corresponding mounting holes are respectively provided on the mounting block for the sealing plug and the ventilation plug. Convex bodies are respectively provided on one side of the sealing plug and the ventilation plug, and the convex bodies are inserted into the mounting holes.

3. The airtightness detection device for the electric control box of a new energy vehicle according to claim 2, wherein: Axial holes are respectively provided in the middle of the sealing plug and the ventilation plug so that screws can penetrate through. The sealing plug is installed in a corresponding fixing screw hole of the mounting block through fixing screws. Sealing rubber pads are respectively provided at the outer ends of the sealing plug and the ventilation plug to abut against the outer ends of the wire pipe orifices.

4. An airtightness detection device for an electric control box of a new energy vehicle according to claim 3, characterized in that: A guiding block is provided on one side of the mounting block facing the bottom plate. A guiding plate is installed on the bottom plate corresponding to the guiding block. The guiding plates are symmetrically installed on both sides of the bottom plate, and a guiding groove is formed between the two groups of guiding plates. The guiding block slides in the guiding groove to limit the left-right movement of the mounting block.

5. The airtightness detection device for the electric control box of a new energy vehicle according to claim 4, characterized in that: The driving member includes a backing plate fixedly installed on the bottom plate and a bracket arranged on the backing plate. A guide sleeve is fixedly installed on one side of the bracket. A guide rod is slidably installed in the guide sleeve. A push rod is rotatably installed on one side of the bracket away from the guide sleeve. The bent part of the push rod is rotatably connected to a connecting rod, and is rotatably connected to the guide rod through the connecting rod, so as to control the telescopic movement of the guide rod through the push rod. One side of the guide rod is fixedly connected to the mounting block through a locking screw.

6. The airtightness detection device for the electric control box of a new energy vehicle according to claim 5, wherein: A locking screw hole is provided in the guide rod. A stepped hole is provided on the mounting block corresponding to the locking screw. The locking screw penetrates through the stepped hole and is inserted into the locking screw hole to be threadedly connected to the guide rod. A nut is also threadedly installed between the locking screw and the mounting block.

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