Aging test device

Abstract

The utility model discloses an aging test device, comprising a cabinet body which comprises a test chamber and a circulation chamber adjacent to the lower part of the test chamber; the tool assembly is arranged between the testing chamber and the circulating chamber, the tool assembly is communicated in the vertical direction to form an avoiding structure for communicating the testing chamber and the circulating chamber, and a product to be tested is suitable for being placed in the tool assembly and covers the avoiding structure in a sealing mode; the air blowing mechanism is arranged in the circulation chamber and is suitable for blowing heat at the bottom of the product to the test chamber through the avoiding structure; and the suction mechanism is connected with the test chamber and is suitable for sucking the air flow in the test chamber to the outside. With the adoption of the structure, the working environment can be simulated, the test accuracy is improved, an additional heating structure is not needed, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing technology, and in particular to an aging test device. Background Technology

[0002] Electrical products undergo aging tests before leaving the factory to screen out defective products. For example, when testing a driver, the driver is placed on the test bench and connected to cables on the test bench to establish electrical connection with the power supply and the load motor in the test bench. The load motor is then started, putting the driver into operation for aging testing. However, the actual operating environment of the driver is quite complex, and the operating temperature of the driver on the test bench is not easily adjusted, resulting in poor test accuracy.

[0003] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0004] The purpose of this invention is to provide an aging test device to improve the accuracy of aging tests.

[0005] The purpose of this utility model is achieved through the following technical solution: an aging test device, comprising:

[0006] The cabinet includes a test chamber and a circulation chamber immediately below the test chamber;

[0007] A tooling assembly is disposed between the test chamber and the circulation chamber. The tooling assembly is vertically oriented to form an obstacle avoidance structure that connects the test chamber and the circulation chamber. The product to be tested is suitable for being placed in the tooling assembly and the obstacle avoidance structure is sealed.

[0008] A blower mechanism is disposed in the circulation chamber and is adapted to blow heat from the bottom of the product to the test chamber via the clearance structure;

[0009] A suction mechanism is connected to the test chamber and is adapted to draw the airflow inside the test chamber to the outside.

[0010] Furthermore, the cabinet includes a first partition separating the test chamber and the circulation chamber. The tooling assembly and the first partition cooperate to separate the test chamber and the circulation chamber. The first partition is provided with an air outlet, and the tooling assembly is provided with an air inlet.

[0011] Furthermore, the blower mechanism includes:

[0012] The first fan is adapted to blow the airflow in the circulation chamber toward the air outlet in a vertical direction;

[0013] The second fan is adapted to blow the heat from the bottom of the product towards the first fan in a horizontal direction;

[0014] The air inlet and the air outlet are located on both sides of the test chamber and / or the circulation chamber in the direction of the first fan's airflow, and the airflow in the test chamber is adapted to flow to the second fan through the air inlet.

[0015] Furthermore, the tooling assembly includes:

[0016] The drawer is slidably connected to the cabinet body, and both its top and bottom sides are open.

[0017] The tooling is detachably fixed in the drawer;

[0018] The second partition is fixed in the drawer and cooperates with the tooling to close the lower side of the drawer. The air inlet is opened in the second partition.

[0019] The tooling has a positioning groove for positioning the product recessed inward from its top surface, and a clearance hole for avoiding the bottom of the product is formed through the bottom of the positioning groove.

[0020] Furthermore, the drawer is adapted to be pulled out to a first position for taking out or placing products or pushed to a second position for testing products. A limit switch is provided on the first partition. When the drawer is in the second position, the limit switch is adapted to detect the drawer and send a power supply signal. When the drawer is not in the second position, the limit switch does not detect the drawer and sends a power off signal.

[0021] Furthermore, the suction mechanism includes:

[0022] The third fan is installed at the top of the cabinet, and its air inlet is connected to the top of the test chamber;

[0023] A dust cover is installed on the top of the cabinet and covers the third fan.

[0024] The dust cover has several heat dissipation holes on its periphery.

[0025] Furthermore, the third fan is an ion fan.

[0026] Furthermore, the portion of the cabinet that encloses the test chamber and the circulation chamber is made of heat-insulating material.

[0027] Furthermore, the cabinet also includes:

[0028] The electrical room is located behind the test chamber;

[0029] The motor room is located below the circulation room and / or the electrical room;

[0030] The aging test device further includes an electrical system housed in the electrical chamber and a load motor housed in the motor chamber. The electrical system includes test cables extending into the test chamber, and the load motor is electrically connected to the electrical system.

[0031] Furthermore, multiple tooling components are arranged side by side, the circulation chamber is divided into multiple cavities corresponding to each tooling component by partitions, and multiple blower mechanisms are arranged in different cavities.

[0032] Compared with the prior art, this utility model has the following beneficial effects: By setting up a test chamber, the product to be tested can be placed on the tooling assembly to be housed in the test chamber, so as to simulate the working environment of the product and improve the accuracy of the test; Since the bottom of the product generates heat during the test, the cabinet has a circulation chamber below the test chamber, and a blower mechanism is installed in the circulation chamber. The tooling assembly is vertically connected to form a clearance structure. When the product is placed in the tooling assembly, the blower mechanism is adapted to blow the heat from the bottom of the product to the test chamber through the clearance structure, thereby dissipating heat from the product and effectively raising the temperature of the test chamber to simulate the working environment. There is no need to set up an additional heating structure, which effectively reduces costs; In addition, by setting up a suction mechanism connected to the test chamber, when the temperature of the test chamber is too high, the suction mechanism can be opened to discharge the heat flow of the test chamber, thereby achieving the purpose of cooling and ensuring that the test chamber is maintained within the required temperature range. Attached Figure Description

[0033] Figure 1 This is a cross-sectional schematic diagram of the aging test device of this utility model.

[0034] Figure 2 yes Figure 1 A magnified view of a portion at point A.

[0035] Figure 3 This is a schematic diagram of the aging test device of this utility model.

[0036] Figure 4 This is a structural schematic diagram of the tooling component in this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Cabinet; 110. Test Chamber; 120. Circulation Chamber; 130. Frame; 140. Sealing Plate; 150. First Partition; 151. Air Outlet; 160. Electrical Room; 170. Motor Room; 200. Tooling Components; 210. Drawer; 211. Drawer Panel; 212. Front Panel; 213. Handle; 220. Tooling; 221. Positioning Slot; 222. Clearance Hole; 230. Second Partition; 231. Air Inlet; 300. Blowing Mechanism; 310. First Fan; 320. Second Fan; 400. Suction Mechanism; 410. Third Fan; 420. Dust Cover; 421. Ventilation Hole; 500. Limit Switch; 600. Electrical System; 610. Test Cable; 700. Load Motor. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0040] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] Please see Figures 1 to 4As shown, the aging test device corresponding to a preferred embodiment of the present invention includes: a cabinet 100, including a test chamber 110 and a circulation chamber 120 adjacent to the test chamber 110; a tooling assembly 200, disposed between the test chamber 110 and the circulation chamber 120, the tooling assembly 200 having a vertically penetrating clearance structure that connects the test chamber 110 and the circulation chamber 120, the product to be tested being suitable for being placed in the tooling assembly 200 and having the clearance structure sealed; a blowing mechanism 300, disposed within the circulation chamber 120, and suitable for blowing heat from the bottom of the product to the test chamber 110 via the clearance structure; and a suction mechanism 400, connected to the test chamber 110, and suitable for drawing airflow from the test chamber 110 to the outside. In this embodiment, the product is specifically a driver.

[0043] This invention features a test chamber 110 where the product to be tested can be placed on a fixture assembly 200 and housed within the test chamber 110 to simulate the product's working environment and improve test accuracy. Since the bottom of the product generates heat during testing, a circulation chamber 120 is provided below the test chamber 110 in the cabinet 100. A blower mechanism 300 is installed within the circulation chamber 120. The fixture assembly 200 has a vertically extending clearance structure. When the product is placed in the fixture assembly 200, the blower mechanism 300 is adapted to blow the heat from the bottom of the product to the test chamber 110 through the clearance structure. This dissipates heat from the product while effectively raising the temperature of the test chamber 110 to simulate the working environment, eliminating the need for additional heating structures and effectively reducing costs. Furthermore, a suction mechanism 400 connected to the test chamber 110 allows the heat flow to be discharged when the temperature of the test chamber 110 becomes too high, achieving cooling and ensuring that the test chamber 110 remains within the required temperature range.

[0044] Furthermore, the cabinet 100 includes a frame 130 and a plurality of sealing plates 140 disposed on the frame 130, the sealing plates 140 being adapted to form a test chamber 110 and a circulation chamber 120. The cabinet 100 also includes a first partition 150 separating the test chamber 110 and the circulation chamber 120, the tooling assembly 200 and the first partition 150 cooperating to separate the test chamber 110 and the circulation chamber 120.

[0045] The first partition 150 is provided with an air outlet 151, and the tooling assembly 200 is provided with an air inlet 231. The airflow in the circulation chamber 120 can flow from the air outlet 151 to the test chamber 110, while the airflow in the test chamber 110 can flow into the circulation chamber 120 from the air inlet 231. The blowing mechanism 300 includes a first fan 310 and a second fan 320. The first fan 310 is adapted to blow the airflow in the circulation chamber 120 toward the air outlet 151 in a vertical direction, while the second fan 320 is adapted to blow the heat from the bottom of the product toward the first fan 310 in a horizontal direction, specifically in the front-rear direction of the cabinet 100, to ensure that the heat from the bottom of the product continuously circulates into the test chamber 110. In this embodiment, the air inlet 231 and the air outlet 151 are located on both sides of the test chamber 110 and / or the circulation chamber 120 in the blowing direction of the first fan 310, to ensure that the heat flow can be evenly distributed to all parts of the test chamber 110.

[0046] The first fan 310 is fixed to the bottom side of the first partition 150, and its outlet end is close to the air outlet 151. The second fan 320 is fixed to the bottom of the circulation chamber 120. The second fan 320 is located directly below the air inlet 231, and its air inlet end corresponds to the air inlet 231. The air outlet end of the second fan 320 faces the first fan 310, and the bottom of the product is located between the first fan 310 and the second fan 320.

[0047] Furthermore, the tooling assembly 200 includes a drawer 210, a tooling 220, and a second partition 230. The drawer 210 includes drawer panels 211 and a front panel 212. Multiple drawer panels 211 are connected end-to-end to form a frame structure open on both the top and bottom. The drawer panels 211 on the left and right sides are slidably connected to the frame 130, allowing the drawer 210 to slide along the front-back direction of the cabinet 100. The front panel 212 is fixed to the drawer panel 211 near the front of the cabinet 100 and has a handle 213 for pushing and pulling. The tooling 220 is detachably fixed in the drawer 210. The second partition 230 is fixed in the drawer 210 and cooperates with the tooling 220 to close the lower side of the drawer 210. An air inlet 231 is opened in the second partition 230.

[0048] The tooling 220 has a recessed positioning groove 221 formed from its top surface, and the product is suitable for being positioned in the positioning groove 221. Preferably, there are multiple positioning grooves 221 to accommodate different types of products. The positioning groove 221 has a clearance hole 222 extending downwards from its bottom to avoid contact with the bottom of the product. When the product is placed in the positioning groove 221, the bottom of the product covers the clearance hole 222, exposing it to the circulation chamber 120. The second fan 320 can then blow heat from the bottom of the product towards the first fan 310 through the clearance hole 222.

[0049] Drawer 210 is adapted to be pulled out to a first position for taking out or placing products, or pushed back to a second position for testing products. Preferably, a limit switch 500 is provided on the first partition 150. When drawer 210 is in the second position, limit switch 500 is adapted to detect drawer 210 and send a power supply signal to supply power to the product. When drawer 210 is not in the second position, limit switch 500 does not detect drawer 210 and sends a power off signal to cut off power to the product, thereby ensuring safety during the testing process.

[0050] Furthermore, the suction mechanism 400 includes a third fan 410 and a dust cover 420. The third fan 410 is located on the top of the cabinet 100, and its air inlet is connected to the top of the test chamber 110. The dust cover 420 is located on the top of the cabinet 100 and covers the third fan 410. Since the third fan 410 is located outside, the dust cover 420 can effectively improve the cleanliness of the third fan 410 and ensure its normal operation. Several heat dissipation holes 421 are provided on the periphery of the dust cover 420 to allow the heat drawn from the test chamber 110 to be discharged to the outside. Preferably, in this embodiment, the third fan 410 is an ion fan. It can remove static electricity in the test chamber 110 so as to draw the dust generated in the test chamber 110 to the outside. Preferably, a temperature sensor connected to the third fan 410 can be installed in the test chamber 110 to activate the third fan 410 even when the temperature is too high.

[0051] Furthermore, the cabinet 100 also includes an electrical compartment 160 and a motor compartment 170. The electrical compartment 160 is located behind the test chamber 110, and the motor compartment 170 is located below the circulation chamber 120 and / or the electrical compartment 160. The testing device also includes an electrical system 600 housed in the electrical compartment 160 and a load motor 700 housed in the motor compartment 170. The electrical system 600 includes a test cable 610 extending into the test chamber 110. The load motor 700 is electrically connected to the electrical system 600, and the test cable 610 can be electrically connected to the product under test, so that the product is connected to a power source and to the load motor 700 for signal connection. One or more load motors 700 can be set as needed, preferably two, and connected in parallel, so as to ensure high power requirements while maintaining high flexibility. Under the condition of large load changes, the number of operating motors can be flexibly adjusted to adapt to different load requirements, thereby saving energy and effectively reducing costs.

[0052] Furthermore, multiple tooling components 200 are arranged side-by-side in the left-right direction so that the testing device can test multiple products simultaneously. The circulation chamber 120 is divided into multiple chambers corresponding to the tooling components 200 by partitions. There are multiple blower mechanisms 300, which are placed in different chambers, so that different chambers can be flexibly vented and emptied as needed to meet the testing requirements of different numbers of products while reducing costs.

[0053] The test chamber 110 can be divided into multiple cavities corresponding one-to-one with the tooling components 200 by partitions as needed, or it can be a single integral cavity; this utility model does not impose any limitations on this. When the test chamber 110 is a single integral cavity, the suction mechanism 400 does not need to correspond one-to-one with the tooling components 200, and a smaller number can be set as needed to reduce costs.

[0054] Preferably, the portion of the cabinet 100 that encloses the test chamber 110 and the circulation chamber 120 is made of heat-insulating material to block heat and keep it warm, so that the test chamber 110 maintains a stable temperature while preventing a large amount of heat from dissipating to the load motor 700 and / or electrical system 600, thereby improving the service life and working efficiency of both.

[0055] The testing process of this utility model is as follows: First, drawer 210 is pulled out to the first position, and the product to be tested is placed in fixture 220. Then, test cable 610 is connected to the product, and drawer 210 is pushed to the second position. Next, the testing device is started, load motor 700 is turned on, and electrical connection is made with product through electrical system 600 to put product into working state. During this process, blower mechanism 300 is continuously turned on to blow the heat generated at the bottom of product into test chamber 110 from air outlet 151. At the same time, airflow in test chamber 110 flows into circulation chamber 120 from air inlet 231, realizing airflow circulation in test chamber 110 and circulation chamber 120, and making heat evenly cover the product. When the temperature in test chamber 110 is too high, third fan 410 can be turned on to discharge heat in test chamber 110 and cool test chamber 110.

[0056] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An aging test apparatus characterized by comprising: The application relates to a cabinet (100) for testing products, comprising: a cabinet body (100) comprising a test chamber (110) and a circulation chamber (120) adjacent to the lower side of the test chamber (110); a tooling assembly (200) arranged between the test chamber (110) and the circulation chamber (120), the tooling assembly (200) being vertically provided with a bypass structure for connecting the test chamber (110) and the circulation chamber (120), and the product to be tested being arranged in the tooling assembly (200) and covering the bypass structure; a blowing mechanism (300) arranged in the circulation chamber (120) and adapted to blow the product bottom heat to the test chamber (110) through the bypass structure; a suction mechanism (400) connected to the test chamber (110) and adapted to suck the air flow in the test chamber (110) to the outside.

2. The aging test apparatus of claim 1, wherein The cabinet body (100) comprises a first partition plate (150) arranged between the test chamber (110) and the circulation chamber (120), the tooling assembly (200) and the first partition plate (150) are arranged to block the test chamber (110) and the circulation chamber (120), the first partition plate (150) is provided with an air outlet (151), and the tooling assembly (200) is provided with an air inlet (231).

3. The aging test apparatus of claim 2, wherein The blowing mechanism (300) comprises: a first fan (310) adapted to blow the air flow in the circulation chamber (120) to the air outlet (151) in the vertical direction; a second fan (320) adapted to blow the product bottom heat to the first fan (310) in the horizontal direction; wherein the air inlet (231) and the air outlet (151) are located on both sides of the test chamber (110) and / or the circulation chamber (120) in the blowing direction of the first fan (310), and the air flow in the test chamber (110) is adapted to flow to the second fan (320) through the air inlet (231).

4. The aging test apparatus of claim 3, wherein The tooling assembly (200) comprises: a drawer (210) slidably connected to the cabinet body (100) and having an open structure on the upper side and the lower side; a tooling (220) detachably fixed in the drawer (210); a second partition plate (230) fixed in the drawer (210) and adapted to close the lower side of the drawer (210) in cooperation with the tooling (220), and the air inlet (231) is arranged in the second partition plate (230); wherein the tooling (220) is recessed inwardly from the top surface to form a positioning groove (221) for positioning the product, and the positioning groove (221) is vertically provided with a bypass hole (222) for bypassing the product bottom.

5. The aging test apparatus of claim 4, wherein The drawer (210) is adapted to be pulled to a first position for taking and placing products or pushed to a second position for testing products, the first partition (150) is provided with a limit switch (500), when the drawer (210) is in the second position, the limit switch (500) is adapted to detect the drawer (210) and send a power-on signal, when the drawer (210) is not in the second position, the limit switch (500) does not detect the drawer (210) and sends a power-off signal.

6. The aging test apparatus of claim 1, wherein The suction mechanism (400) comprises: A third fan (410) is arranged at the top of the cabinet (100) and the air inlet end is connected with the top of the test chamber (110); A dust cover (420) is arranged at the top of the cabinet (100) and covers the third fan (410); Wherein, the periphery of the dust cover (420) is provided with a plurality of heat dissipation holes (421).

7. The aging test apparatus of claim 6, wherein The third fan (410) is an ion fan.

8. The aging test apparatus of claim 1, wherein The part of the cabinet (100) surrounding the test chamber (110) and the circulation chamber (120) is made of heat insulation material.

9. The aging test apparatus of claim 1, wherein The cabinet (100) further comprises: An electrical chamber (160) is located at the back of the test chamber (110); A motor chamber (170) is located below the circulation chamber (120) and / or the electrical chamber (160); Wherein, the aging test device further comprises an electrical system (600) accommodated in the electrical chamber (160) and a load motor (700) accommodated in the motor chamber (170), the electrical system (600) comprises a test cable (610) extending into the test chamber (110), and the load motor (700) is electrically connected with the electrical system (600).

10. The aging test apparatus of claim 1, wherein A plurality of tool assemblies (200) are arranged side by side, the circulation chamber (120) is divided into a plurality of cavities corresponding to the tool assemblies (200) by partitions, and the number of air blowing mechanisms (300) is plural to be arranged in different cavities respectively.

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