Air tightness detection device

Abstract

The utility model discloses an air tightness detection device, which comprises an upper pressing assembly connected to a driving device and a lower pressing assembly fixed on a base, and is characterized in that the driving device drives the upper pressing assembly to move so as to adjust the distance between the upper pressing assembly and the lower pressing assembly and fix a product placed on the lower pressing assembly; the downward pressing assembly comprises a bottom plate, a plugging device arranged on the bottom plate and a sealing plate used in cooperation with a product. The plugging device and the sealing plate cooperate with each other to complete the sealing of the product, and the device is suitable for the airtightness detection of the same products with different heights and sizes through the adaptive mechanism, thereby improving the detection efficiency, and guaranteeing the accuracy.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing of electronic control products for new energy vehicles, and specifically to an airtightness testing device. Background Technology

[0002] Traditional airtightness testing is limited by factors such as product structure, resulting in poor sealing and reduced accuracy. To address these issues, this invention proposes an innovative design that significantly improves the efficiency and accuracy of airtightness testing. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an airtightness testing device. This device, through an adaptive mechanism, is suitable for airtightness testing of the same product with different heights and dimensions, thereby improving testing efficiency and ensuring accuracy.

[0004] The technical solution of this utility model is: an airtightness testing device, including an upper pressing component connected to a driving device and a lower pressing component fixed to a base. The upper pressing component is driven to move by the driving device to adjust the distance between the upper pressing component and the lower pressing component, and the product placed on the lower pressing component is fixed.

[0005] The pressing assembly includes a base plate, a sealing device disposed on the base plate, and a sealing plate used in conjunction with the product; the sealing device and the sealing plate work together to seal the product.

[0006] Furthermore, the upper pressure assembly includes an upper pressure plate, an adaptive mechanism disposed at the bottom of the upper pressure plate, and a sealing device on the product;

[0007] The adaptive mechanism includes an elastic damper and a rubber block. One end of the elastic damper is connected to the bottom of the upper pressure plate, and the other end of the elastic damper is connected to the rubber block.

[0008] Furthermore, the adaptive mechanism is provided in multiple forms.

[0009] Furthermore, the upper sealing device includes an elastic shock absorber and an upper plug located at the end of the elastic shock absorber.

[0010] Furthermore, the bottom of the upper pressure plate is provided with an upper pressure positioning pin, and the bottom plate is provided with a positioning hole that cooperates with the upper pressure positioning pin.

[0011] Furthermore, the sealing device includes a left waterway cylinder assembly, a right-side chamber cylinder assembly, and a front sealing cylinder assembly;

[0012] The left waterway cylinder assembly includes a left waterway cylinder, a left translation module connected to the telescopic end of the left waterway cylinder, and a waterway plug provided on the left translation module. The upper end face of the waterway plug is provided with a waterway air inlet and a waterway air outlet.

[0013] The right-side integrated cylinder assembly includes a right-side cylinder, a right-side translation module connected to the telescopic end of the right-side cylinder, and an integrated cylinder plug disposed on the right-side translation module.

[0014] The front sealing cylinder assembly includes a front cylinder and a front plug located at the extension end of the front cylinder.

[0015] Furthermore, the upper surface of the sealing plate is provided with multiple limiting blocks, which are used in conjunction with the product to limit the product from the base plate.

[0016] Furthermore, the product is provided with positioning pin holes, and the base plate is provided with positioning pins that cooperate with the positioning pin holes. There are two sets of positioning pins, and the two sets of positioning pins are arranged diagonally opposite each other.

[0017] Furthermore, one side of the sealing plate is provided with a cavity air inlet, the other side of the sealing plate is provided with a cavity air outlet, and the upper end face of the sealing plate is provided with a vent hole for use in conjunction with the cavity air inlet and cavity air outlet; an air circulation is formed through the cavity air inlet, vent hole and cavity air outlet to complete the airtightness monitoring of the product cavity.

[0018] The beneficial technical effects of this utility model are:

[0019] The adaptive mechanism can fix the same products of different heights and sizes. At the same time, the upper part of the product can be sealed by the use of elastic shock absorbers and upper pressure plugs.

[0020] Additionally, the left-side water channel cylinder assembly, the right-side cavity cylinder assembly, and the front-side sealing cylinder assembly can seal the left, right, and front sides of the product, thereby sealing the product. At this time, the entire cavity of the product is inflated through the sealing plate, and the air tightness is tested by an air tightness tester connected to the cavity air outlet. Similarly, the water channel of the product is inflated through the water channel plug, and the air tightness of the water channel is tested by an air tightness tester connected to the water channel air outlet.

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the upper pressure component of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the pressing component of this utility model;

[0025] Figure 4 This is a schematic diagram of the sealing plate of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 100. Upper pressure assembly; 110. Upper pressure plate; 111. Upper pressure positioning pin; 120. Adaptive mechanism; 121. Elastic shock absorber; 122. Rubber block; 130. Upper sealing device; 200. Lower pressure assembly; 210. Left waterway cylinder assembly; 211. Left cylinder; 212. Left translation module; 213. Waterway plug; 2131. Waterway air inlet; 2132. Waterway air outlet; 220. Right-side integrated cylinder. Components; 221, Right side cylinder; 222, Right side translation module; 223, Whole cavity plug; 230, Front sealing cylinder assembly; 231, Front cylinder; 232, Front plug; 240, Base plate; 241, Positioning hole; 242, Positioning pin; 250, Sealing plate; 251, Whole cavity air inlet; 2511, Vent hole; 252, Whole cavity air outlet; 253, Limit block; 300, Product; 310, Positioning pin hole. Detailed Implementation

[0028] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship described in the embodiments and shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figures 1-4 As shown, this utility model specifically relates to an airtightness testing device, including an upper pressing component 100 connected to a driving device and a lower pressing component 200 fixed to a base. The upper pressing component 100 is driven to move by the driving device to adjust the distance between the upper pressing component 100 and the lower pressing component 200, and the product 300 placed on the lower pressing component 200 is fixed.

[0032] The pressing assembly 200 includes a base plate 240, a sealing device disposed on the base plate 240, and a sealing plate 250 used in conjunction with the product 300; the sealing device and the sealing plate 250 cooperate with each other to complete the sealing of the product 300.

[0033] It should be noted that the lower pressing component 200 is fixed on the base, and the upper pressing component 100 is provided with a driving device at its upper end. The driving device drives the upper pressing component 100 to move vertically downward to fix the product 300 placed on the lower pressing component 200.

[0034] In addition, the size of the sealing plate 250 is larger than that of the product 300. After the product 300 is placed on the sealing plate 250, the pressing assembly 100 applies downward pressure to the product 300 to fix the sealing plate 250 and the product 300, while ensuring the sealing performance at the connection between the product 300 and the sealing plate 250.

[0035] Furthermore, the product 300 is further sealed by the sealing device on the base plate 240 to seal the circumference of the product 300. After the product 300 is sealed, the product 300 is filled with gas and the gas concentration inside the product 300 is detected to complete the airtightness test of the product 300.

[0036] The specific principle of airtightness testing is a relatively mature testing method in the existing technology. It mainly involves installing an airtightness meter at the air outlet to analyze the gas concentration, which will not be described in detail here.

[0037] The upper pressure assembly 100 includes an upper pressure plate 110, an adaptive mechanism 120 disposed at the bottom of the upper pressure plate 110, and a sealing device 130 on the product 300;

[0038] The adaptive mechanism 120 includes an elastic damper 121 and a rubber block 122. One end of the elastic damper 121 is connected to the bottom of the upper pressure plate 110, and the other end of the elastic damper 121 is connected to the rubber block 122.

[0039] The adaptive mechanism 120 can be adjusted according to the height of the product 300 to avoid damage to the upper surface of the product 300 during the pressing process; similarly, the rubber block 122 avoids rigid contact with the upper surface of the product 300 during the fixing process, thus avoiding damage to the upper surface of the product 300.

[0040] When the height of product 300 is relatively high, the elastic shock absorber 121 is in a compressed state. The elasticity of the elastic shock absorber 121 causes the rubber block 122 to abut against the upper surface of product 300, thereby fixing product 300.

[0041] Multiple adaptive mechanisms 120 are provided to ensure the stability of product 300.

[0042] The upper sealing device 130 includes an elastic shock absorber 121 and an upper plug located at the end of the elastic shock absorber 121.

[0043] The elastic damper 121 of the upper sealing device 130 and the elastic damper 121 of the adaptive mechanism 120 are the same device. The elastic damper 121 and the upper plug cooperate with each other to seal the upper surface of the product 300.

[0044] The bottom of the upper pressure plate 110 is provided with an upper pressure positioning pin 111, and the bottom plate 240 is provided with a positioning hole 241 that cooperates with the upper pressure positioning pin 111. The cooperation between the upper pressure positioning pin 111 and the positioning hole 241 further ensures the accuracy of the pressing process, thereby ensuring the sealing performance of the product 300 and the accuracy of the test.

[0045] The sealing device includes a left waterway cylinder assembly 210, a right chamber cylinder assembly 220, and a front sealing cylinder assembly 230.

[0046] The left water channel cylinder assembly 210 includes a left cylinder 211, a left translation module 212 connected to the telescopic end of the left cylinder 211, and a water channel plug 213 provided on the left translation module 212. The upper end face of the water channel plug 213 is provided with a water channel air inlet 2131 and a water channel air outlet 2132. The water channel of the product 300 is inflated through the water channel plug 213, and the air tightness of the water channel is tested by an air tightness tester connected to the water channel air outlet 2132.

[0047] During this process, the water channel air inlet 2131, the product 300 water channel, and the water channel air outlet 2132 form a complete cycle.

[0048] The right-side integrated cylinder assembly 220 includes a right-side cylinder 221, a right-side translation module 222 connected to the telescopic end of the right-side cylinder 221, and an integrated cylinder plug 223 disposed on the right-side translation module 222.

[0049] The front sealing cylinder assembly 230 includes a front cylinder 231 and a front plug 232 located at the telescopic end of the front cylinder 231.

[0050] The water channel is located inside the cavity of product 300 and is a sealed whole. Only one side of product 300 has an inlet and outlet connected to the water channel.

[0051] The upper surface of the sealing plate 250 is provided with a plurality of limiting blocks 253, which are used in conjunction with the product 300 to limit the product 300 to the base plate 240.

[0052] The product 300 is provided with a positioning pin hole 310, and the base plate 240 is provided with a positioning pin 242 that cooperates with the positioning pin hole 310. There are two sets of positioning pins 242, and the two sets of positioning pins 242 are arranged diagonally opposite each other.

[0053] The sealing plate 250 has a cavity air inlet 251 on one side and a cavity air outlet 252 on the other side. The upper end face of the sealing plate 250 has a vent hole 2511 for use with the cavity air inlet 251 and the cavity air outlet 252. An air circulation is formed through the cavity air inlet 251, the vent hole 2511 and the cavity air outlet 252 to complete the air tightness monitoring of the entire cavity of the product 300.

[0054] One end of the air outlet 252 is also connected to an external air tightness tester. The air tightness tester detects the gas concentration in the entire cavity of the product 300 to fully test the sealing performance.

[0055] The above embodiments are merely specific implementations of this utility model, used to illustrate the technical solutions of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope disclosed in this utility model. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. An air tightness detecting device characterized by comprising: The application relates to a product sealing device, which comprises an upper pressing assembly (100) connected to a driving device and a lower pressing assembly (200) fixed to a base, the upper pressing assembly (100) is driven to move by the driving device to adjust the distance between the upper pressing assembly (100) and the lower pressing assembly (200), and products (300) placed on the lower pressing assembly (200) are fixed; The lower pressing assembly (200) comprises a bottom plate (240), a sealing device arranged on the bottom plate (240) and a sealing plate (250) used in cooperation with the products (300); the sealing of the products (300) is completed through the cooperation of the sealing device and the sealing plate (250).

2. The air tightness detection device according to claim 1, wherein The upper pressing assembly (100) comprises an upper pressing plate (110), an adaptive mechanism (120) arranged at the bottom of the upper pressing plate (110) and an upper sealing device (130) arranged on the products (300). The adaptive mechanism (120) comprises an elastic shock absorber (121) and a rubber block (122), one end of the elastic shock absorber (121) is connected to the bottom of the upper pressing plate (110), and the other end of the elastic shock absorber (121) is connected with the rubber block (122).

3. The air tightness testing apparatus of claim 2, wherein, The adaptive mechanism (120) is provided with a plurality of.

4. The air tightness detection device according to claim 3, wherein The upper sealing device (130) comprises an elastic shock absorber (121) and an upper plug arranged at the end of the elastic shock absorber (121).

5. The air tightness testing apparatus of claim 2, wherein The bottom of the upper pressing plate (110) is provided with an upper pressing positioning pin (111), and the bottom plate (240) is provided with a positioning hole (241) used in cooperation with the upper pressing positioning pin (111).

6. The air tightness detection device according to claim 1, wherein The sealing device comprises a left water channel air cylinder assembly (210), a right whole cavity air cylinder assembly (220) and a front side sealing air cylinder assembly (230). The left water channel air cylinder assembly (210) comprises a left air cylinder (211), a left translation module (212) connected to the telescopic end of the left air cylinder (211) and a water channel plug (213) arranged on the left translation module (212), and the upper end face of the water channel plug (213) is respectively provided with a water channel air inlet hole (2131) and a water channel air outlet hole (2132). The right whole cavity air cylinder assembly (220) comprises a right air cylinder (221), a right translation module (222) connected to the telescopic end of the right air cylinder (221) and a whole cavity plug (223) arranged on the right translation module (222). The front side sealing air cylinder assembly (230) comprises a front side air cylinder (231) and a front side plug (232) arranged at the telescopic end of the front side air cylinder (231).

7. The air tightness testing apparatus of claim 1, wherein The upper end face of the sealing plate (250) is provided with a plurality of limiting blocks (253), and the plurality of limiting blocks (253) are used in cooperation with the products (300) to limit the products (300) and the bottom plate (240).

8. The air tightness testing apparatus of claim 7, wherein, The products (300) are provided with positioning pin holes (310), the bottom plate (240) is provided with positioning pin columns (242) used in cooperation with the positioning pin holes (310), and the positioning pin columns (242) are provided in two groups, and the two groups of positioning pin columns (242) are diagonally arranged.

9. The air tightness testing apparatus of claim 1, wherein, One side of the sealing plate (250) is provided with a whole cavity air inlet hole (251), the other side of the sealing plate (250) is provided with a whole cavity air outlet hole (252), and the upper end surface of the sealing plate (250) is provided with a ventilation hole (2511) matched with the whole cavity air inlet hole (251) and the whole cavity air outlet hole (252); an air circulation is formed through the whole cavity air inlet hole (251), the ventilation hole (2511) and the whole cavity air outlet hole (252) to complete the air tightness monitoring of the whole cavity of the product (300).

Images