Multifunctional test tool for electronic pump

Abstract

The utility model discloses a multifunctional test tool for an electronic pump, and the tool comprises a housing which comprises an independent first cavity, an independent second cavity, a spraying assembly which is used for spraying salt mist into the first cavity, and a first pump body which is used for adjusting the air pressure in the second cavity; the shell is internally provided with a detachable material, the shell is provided with a first interface used for being connected with salt mist detection equipment, and the first interface is communicated with the first cavity; the shell is provided with a second connector used for being connected with air pressure monitoring equipment, and the second connector communicates with the second cavity. The shell is provided with a third interface used for being connected with a pressure detection device, and the third interface is communicated with the first cavity; the corrosion-resistant end of the material is located in the first cavity, the other end of the material is located in the second cavity, and the first cavity and the second cavity at the two ends of the material are not communicated. According to the utility model, the technical problem that the salt spray test and the sealing test cannot be simultaneously carried out is solved, and the technical effect of simultaneously carrying out the salt spray test and the sealing test is achieved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a multifunctional testing fixture for an electronic pump. Background Technology

[0002] Salt spray testing is an important means of verifying the corrosion resistance of automotive parts. There are many metal parts in automotive parts, such as the body, chassis, and engine, as well as many metal-plated parts, such as electronic components, electroplated decorative parts, and fasteners. As long as there is metal, it may be corroded in a corrosive environment, leading to a decline in function or performance or failure. Therefore, corrosion resistance is an important part of automotive design, development, and verification, and it is also a requirement that automobiles as products must meet.

[0003] During use, some automotive parts are typically exposed to corrosive environments while others are located inside the equipment. This requires the automotive parts to have sufficient airtightness to ensure that the environments of the two parts are not connected.

[0004] In existing technologies, salt spray testing and sealing testing are usually performed separately: salt spray testing is first conducted on the parts of the components that are exposed to corrosive environments during use to evaluate the rust prevention performance of the coating or passivation treatment, and then the sealing performance of the components is tested by visual inspection or pressure method. The two often need to be carried out independently.

[0005] However, this step-by-step testing mode cannot simulate the synergistic effect of salt spray corrosion and sealing performance during actual use, and the testing efficiency is low. Utility Model Content

[0006] This application provides a multi-functional testing fixture for electronic pumps to solve the technical problem that salt spray testing and sealing testing cannot be performed simultaneously.

[0007] This application provides a multifunctional testing fixture for an electronic pump, comprising: a housing, the housing including an independent first cavity, an independent second cavity, a spray assembly for spraying salt spray into the first cavity, and a first pump body for adjusting the air pressure in the second cavity; the housing has an installation part for detachable connection with materials, the housing has a first interface for connecting to a salt spray detection device, the first interface being connected to the first cavity; the housing has a second interface for connecting to an air pressure monitoring device, the second interface being connected to the second cavity; the housing has a third interface for connecting to a pressure detection device, the third interface being connected to the first cavity; when the material is connected to the installation part, one corrosion-resistant end of the material is located in the first cavity, and the other end of the material is located in the second cavity, and the first and second cavities at both ends of the material are not connected; the installation part includes a partition plate, the inner cavity of the housing is divided into the first cavity and the second cavity by the partition plate, and the material passes through the partition plate.

[0008] By adopting the above technical solution, an independent first cavity and an independent second cavity are set inside the shell. The material passes through the partition plate, so that the corrosion-resistant end of the material is located in the first cavity for salt spray testing, and the other end of the material is located in the second cavity for sealing testing. This realizes the simultaneous performance of salt spray testing and sealing testing, and improves the efficiency of material testing.

[0009] Preferably, the partition plate has a detachable first plate body, and the first plate body has a through hole for material installation; wherein, when the material is installed on the first plate body, the through hole fits with the outer contour of the material.

[0010] By adopting the above technical solution, a first plate that fits the outer contour of the material is selected to install the material on the partition plate, ensuring that the first cavity and the second cavity will not be connected due to the installation error of the material after installation, thus further ensuring the accuracy of the sealing test.

[0011] Preferably, the bottom of the first cavity is a sloping structure, and the lowest point of the sloping structure is provided with a first groove for containing the salt spray medium; the bottom of the first groove is a slope structure, which gradually extends from high to low along the length of the first groove; or the slope structure gradually extends from low to high from the middle to both ends; the spray assembly includes an atomizing pump with a nozzle, a receiving cavity, a first tube, and a second tube connecting the atomizing pump and the receiving cavity; the nozzle is located in the first cavity, and the atomizing pump, the receiving cavity, the first tube, and the second tube are all located outside the housing; one end of the first tube is connected to the receiving cavity, and the other end of the first tube is located at the lowest point of the bottom of the first groove.

[0012] By adopting the above technical solution, the first groove is set at the lowest point of the inclined structure of the first cavity, which increases the amount of return medium that can be collected and avoids the accumulation of medium on the inclined surface from interfering with the spray of the nozzle. At the same time, the slope structure is set at the bottom of the first groove, which improves the return efficiency of the atomizing medium. Combined with the setting of the first tube and the collection cavity, the salt spray medium is recovered, realizing the recycling of the salt spray medium, reducing resource waste and reducing environmental pollution.

[0013] Preferably, the volume of the first cavity is not less than 200% of the volume of the portion of the material located in the first cavity.

[0014] By adopting the above technical solution, a first cavity with a diameter of not less than 200% of the corrosion-resistant portion of the material is set up. This ensures that there is sufficient space after the nozzle sprays out the salt spray medium, so that the atomized medium is evenly distributed, ensuring full contact between the atomized medium and the material, and improving the accuracy of salt spray detection data.

[0015] Preferably, the housing is provided with a fourth interface for connecting to a temperature control device, and the fourth interface is connected to the first cavity; wherein, during testing, the fourth interface does not interfere with the first interface and the third interface.

[0016] By adopting the above technical solution, a fourth interface is set up to connect to an external temperature control device, making it possible to conduct subsequent temperature control experiments and improving the practicality of the equipment.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0018] 1. An independent first chamber and an independent second chamber are set up inside the shell. The material passes through the partition plate, so that the corrosion-resistant end of the material is located in the first chamber for salt spray testing, and the other end of the material is located in the second chamber for sealing testing. This realizes the simultaneous performance of salt spray testing and sealing testing, and improves the efficiency of material testing.

[0019] 2. Select the first plate that matches the outer contour of the material and install the material on the partition plate to ensure that the first cavity and the second cavity will not be connected due to the installation error of the material after installation, thus further ensuring the accuracy of the sealing test;

[0020] 3. By setting the first groove at the lowest point of the inclined structure of the first cavity, the amount of return medium can be increased, avoiding the interference of the spray from the nozzle after the medium accumulates on the inclined surface. At the same time, the slope structure at the bottom of the first groove improves the return efficiency of the atomizing medium. Combined with the setting of the first tube and the collection cavity, the salt spray medium is recovered, realizing the recycling of the salt spray medium, reducing resource waste and reducing environmental pollution.

[0021] 4. A first cavity with a capacity of not less than 200% of the material's corrosion-resistant portion is provided to ensure sufficient space for uniform distribution of the atomized medium after the nozzle sprays out the salt spray medium, ensuring full contact between the atomized medium and the material, and improving the accuracy of salt spray detection data.

[0022] 5. A fourth interface is provided to connect to an external temperature control device, enabling subsequent temperature control experiments and improving the practicality of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 An isometric drawing of a multifunctional test fixture for an electronic pump provided in this application;

[0025] Figure 2 A front view of a multifunctional test fixture for an electronic pump provided in this application;

[0026] Figure 3 for Figure 2 A cross-sectional view along the CC direction;

[0027] Figure 4 A side view of a multifunctional test fixture for an electronic pump provided in this application;

[0028] Figure 5 for Figure 4 A cross-sectional view along the FF direction.

[0029] Explanation of reference numerals in the attached drawings: 1. Shell; 11. First cavity; 111. Inclined structure; 112. First groove; 113. Slope structure; 12. Second cavity; 13. Partition plate; 14. First interface; 15. Second interface; 16. Third interface; 17. Fourth interface; 21. Atomizing pump; 211. Nozzle; 22. Receiving cavity; 23. First tube; 24. Second tube; 31. First pump body; 4. First plate; 5. Material. Detailed Implementation

[0030] This application provides a multi-functional testing fixture for electronic pumps to solve the technical problem that salt spray testing and sealing testing cannot be performed simultaneously in the prior art.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution. Example 1

[0036] like Figures 1 to 5 The embodiment of this application provides a multifunctional testing fixture for an electronic pump, comprising: a housing 1, the housing 1 including an independent first cavity 11, an independent second cavity 12, a spray assembly for spraying salt spray into the first cavity 11, and a first pump body 31 for adjusting the air pressure in the second cavity 12; the housing 1 is provided with a mounting part for detachably connecting to a material 5, the housing 1 is provided with a first interface 14 for connecting to a salt spray detection device, the first interface 14 being connected to the first cavity 11; the housing 1 is provided with a second interface 15 for connecting to an air pressure monitoring device, the second interface 15 being connected to the second cavity 12; the housing 1 is provided with a third interface 16 for connecting to a pressure detection device, the third interface 16 being connected to the first cavity 11; when the material 5 is connected to the mounting part, one corrosion-resistant end of the material 5 is located in the first cavity 11, and the other end of the material 5 is located in the second cavity 12, and the first cavity 11 and the second cavity 12 at both ends of the material 5 are not connected.

[0037] Preferably, in the embodiment provided in this application, the housing 1 of the electronic pump multifunctional testing fixture is provided with a partition plate 13, which divides the housing 1 into an independent first cavity 11 and an independent second cavity 12. The partition plate 13 is provided with an installation hole for material 5 to pass through. Material 5 passes through the partition plate 13 through the installation hole. The partition plate 13 is also provided with a first plate 4 for installing material 5. When material 5 is fixed on the partition plate 13 by the first plate 4, part of material 5 is located in the first cavity 11 and the other part of material 5 is located in the second cavity 12. The first cavity 11 and the second cavity 12 at both ends of material 5 are not connected. The thickness of the partition plate 13 is less than the length of material 5, and the space of the first cavity 11 is greater than 200% of the part of material 5 that extends out of the first cavity 11 relative to the partition plate 13, so as to facilitate the full contact between material 5 and salt spray.

[0038] The bottom of the first cavity 11 adopts a sloping structure 111. In the direction of the extension of the partition plate 13, the sloping structure 111 is set from high to low. A first groove 112 is provided at the lower end of the sloping structure 111. The first groove 112 extends perpendicularly to the partition plate 13. The bottom of the first groove 112 is a slope structure 113. In the direction perpendicular to the partition plate 13, the slope structure 113 is set from high to low.

[0039] In the spray assembly, the nozzle 211 of the atomizing pump 21 is located at the bottom center of the first cavity 11. A second tube 24 is provided on the pump body of the atomizing pump 21, with the other end of the second tube 24 communicating with the receiving cavity 22. A first tube 23 is also provided on the receiving cavity 22, with the other end of the first tube 23 located at the lower part of the slope structure 113 at the bottom of the first trough 112. The salt spray medium is sprayed from the nozzle 211, and after atomization, it fills the first cavity 11. The atomized medium then contacts the inner wall of the first cavity 11. After contact, the salt spray returns to the bottom of the first cavity 11 and converges into the first groove 112 through the inclined structure 111. Then, it flows into the receiving cavity 22 through the first tube 23 at the lower bottom of the first groove 112, and then enters the atomizing pump 21 from the receiving cavity 22 through the second tube 24, realizing the repeated recycling of the salt spray medium. The first pump body 31 adopts a commercially available pneumatic pressure pump. The first pump body 31 is connected to the second cavity 12 and is used to change the pressure change in the second cavity 12.

[0040] The top of the housing 1 is provided with a first interface 14, a second interface 15, a third interface 16 and a fourth interface 17, wherein the first interface 14, the third interface 16 and the fourth interface 17 are all connected to the first cavity 11, and the second interface 15 is connected to the second cavity 12; the first interface 14 is used to connect to an external salt spray detection device, the second interface 15 is used to connect to an external air pressure monitoring device, the third interface 16 is used to connect to an external pressure detection device, and the fourth interface 17 is used to connect to an external temperature control device.

[0041] Among them, the salt spray detection device connected to the first interface 14 detects the salt spray concentration in the first cavity 11, the pressure detection device connected to the third interface 16 monitors the air pressure change in the first cavity 11, and the temperature control device connected to the fourth interface 17 is used to change the temperature in the first cavity 11. Therefore, the devices connected to the first interface 14, the third interface 16 and the fourth interface 17 do not interfere with each other during the detection experiment.

[0042] During use, the material 5 is first installed on the partition plate 13 using the first plate 4 that fits the material 5. Then, the first cavity 11 and the second cavity 12 are sealed. The atomized salt spray medium is sprayed into the first cavity 11 through the nozzle 211 of the atomizing pump 21. The salt spray concentration change in the first cavity 11 is monitored by the salt spray detection device connected to the first interface 14. At the same time, the pressure change in the second cavity 12 is controlled by the first pump 31. The air pressure in the second cavity 12 is monitored in real time by the air pressure monitoring device connected to the second interface 15 and the air pressure change is adjusted by the first pump 31. At the same time, the pressure change in the first cavity 11 is monitored by the pressure detection device connected to the third interface 16. The pressure change in the first cavity 11 is further improved by the pressure change in the first cavity 11. When it is necessary to change the ambient temperature of the material 5, the temperature in the first cavity 11 can be changed by the temperature control device connected to the fourth interface 17.

[0043] In this embodiment, by setting an independent first cavity 11 and an independent second cavity 12 inside the housing 1, and by having the material 5 pass through the partition plate 13 and having both ends of the material 5 located in the first cavity 11 and the second cavity 12 respectively, the salt spray detection and sealing test are carried out simultaneously, thereby improving the efficiency of material 5 detection.

[0044] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0045] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0046] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A multifunctional testing fixture for an electronic pump, characterized in that: The device includes a housing (1), which comprises an independent first chamber (11), an independent second chamber (12), a spray assembly for spraying salt spray into the first chamber (11), and a first pump body (31) for adjusting the air pressure in the second chamber (12). The housing (1) has an installation part for detachably connecting to the material (5), and a first interface (14) for connecting to a salt spray detection device, which communicates with the first chamber (11). The housing (1) also has a connection for connecting to an air pressure monitoring device. The second interface (15) for connecting the measuring device is connected to the second cavity (12); the housing (1) is provided with a third interface (16) for connecting to the pressure detection device, and the third interface (16) is connected to the first cavity (11); when the material (5) is connected to the mounting part, the corrosion-resistant end of the material (5) is located in the first cavity (11), and the other end of the material (5) is located in the second cavity (12), and the first cavity (11) and the second cavity (12) at both ends of the material (5) are not connected.

2. The multifunctional testing fixture for an electronic pump according to claim 1, characterized in that, The mounting part includes a partition plate (13), and the inner cavity of the housing (1) is divided into a first cavity (11) and a second cavity (12) by the partition plate (13), and the material (5) passes through the partition plate (13).

3. The multifunctional testing fixture for an electronic pump according to claim 2, characterized in that, The partition plate (13) is provided with a detachable first plate (4), and the first plate (4) is provided with a through hole for installing material (5); wherein, when the material (5) is installed on the first plate (4), the through hole fits the outer contour of the material (5).

4. The multifunctional testing fixture for an electronic pump according to claim 1, characterized in that, The bottom of the first cavity (11) is a sloping structure (111), and the lowest point of the sloping structure (111) is provided with a first groove (112) for containing salt spray medium.

5. The multifunctional testing fixture for an electronic pump according to claim 4, characterized in that, The spray assembly includes an atomizing pump (21) with a nozzle (211), a receiving chamber (22), a first tube (23), and a second tube (24) connecting the atomizing pump (21) and the receiving chamber (22); the nozzle (211) is located inside the first chamber (11), and the atomizing pump (21), the receiving chamber (22), the first tube (23), and the second tube (24) are all located outside the housing (1); one end of the first tube (23) is connected to the receiving chamber (22), and the other end of the first tube (23) is located at the lowest point of the bottom of the first groove (112).

6. The multifunctional testing fixture for an electronic pump according to claim 5, characterized in that, The bottom of the first groove (112) is a slope structure (113), which extends gradually from high to low along the length of the first groove (112); or the slope structure (113) extends gradually from low to high from the middle to both ends.

7. The multifunctional testing fixture for an electronic pump according to claim 1, characterized in that, The volume of the first cavity (11) is not less than 200% of the volume of the portion of the material (5) located in the first cavity (11).

8. The multifunctional testing fixture for an electronic pump according to claim 1, characterized in that, The housing (1) is provided with a fourth interface (17) for connecting to a temperature control device. The fourth interface (17) is connected to the first cavity (11). During testing, the fourth interface (17) does not interfere with the first interface (14) and the third interface (16).

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