An aging test device

Abstract

The utility model discloses an aging test device, and the furnace body includes heating bin and sets up the isolated bin at its opposite sides, and heating mechanism sets up on heating bin for conveying hot air to heating bin, and a pair of material car that can respectively enter heating bin through different isolated bin, and the material car includes frame, positioning tool and tow chain, and the positioning tool includes for bearing plate, positioning plate and fluid pipeline, and the tow chain sets up on the material car for accommodating cable and fluid pipeline, and the control cabinet is connected with the cable through the isolated bin, and the water -cooled machine is connected with the fluid pipeline through the isolated bin. The material car adopts the mobile form and can go in and out of the furnace body, and the material car is located outside the furnace body and can have larger operation space, and the product can be placed on the positioning tool, and the plug -in of the fluid pipeline and the cable can be more accurate, which can improve the positioning efficiency and the precision of the product, and the product batch can be placed in the heating bin, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aging devices for automotive electronic control units, and in particular to an aging test device. Background Technology

[0002] The automotive electronic control unit is the core component of the electronic control system. It is used to receive input signals from sensors or other devices, process the input signals into signals that can be accepted by the computer, store, calculate, analyze and process information, and perform multiple functions such as ignition control and fuel injection control in engine control. It operates under high temperature conditions for a long time, so its high temperature stability and durability need to be rigorously tested, such as aging tests.

[0003] In the prior art, such as the ECU aging test device with application number 202220772902.7, the housing, ECU mounting bracket and heating tube are disclosed. It can improve the uniformity of heating of ECU products and reduce heat loss during the aging test operation. However, it cannot realize the aging test of multiple products under the actual working conditions. Utility Model Content

[0004] The purpose of this utility model is to provide an aging test device. The material cart is mobile and can enter and exit the furnace body. The material cart is located outside the furnace body and has a large operating space to facilitate the placement of products on the positioning fixture. It can more accurately complete the insertion of fluid pipes and cables, which can improve the positioning efficiency and accuracy of products, and facilitate the batch placement of products into the heating chamber, thereby improving the testing efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an aging test device, comprising:

[0006] The furnace body includes a heating chamber for heating and aging products therein, and isolation chambers disposed on opposite sides of the heating chamber.

[0007] A heating mechanism, which is installed on the heating chamber, is used to deliver hot air into the heating chamber.

[0008] A pair of material carts, each capable of entering the heating chamber via different isolation compartments, each material cart includes a frame, positioning fixtures, and a cable chain. Multiple positioning fixtures are mounted on the frame, each fixture including at least a support plate for placing the product, a positioning plate for positioning cables that connect to the product, and a fluid conduit for conveying fluid into the product. The cable chain is mounted on the material cart for storing the cables and fluid conduits.

[0009] The control cabinet is connected to the cables that pass through the isolation compartment.

[0010] A water chiller is connected to a fluid conduit that passes through the isolation chamber.

[0011] As a further optimization, the support plate is provided with a mounting plate, and a pressure plate is hinged to the mounting plate. After being rotated, the pressure plate presses down and abuts against the product located on the support plate, which can ensure the stability of the product on the support plate.

[0012] As a further optimization, the support plate is equipped with a material arrival sensor.

[0013] As a further optimization, the material cart also includes a track disposed inside and / or outside the furnace body to facilitate the material cart's entry and exit from the furnace body.

[0014] As a further optimization, the lower end of the material cart is provided with support rollers that are misaligned with the track.

[0015] As a further optimization, the heating mechanism includes an air supply component, a housing, and a heating wire. The housing is disposed inside the heating chamber and has a bottom cavity. An air inlet and an air outlet communicating with the bottom cavity are respectively provided on its upper end and side. The heating wire is disposed inside the bottom cavity and is disposed opposite to the air inlet and the air outlet. The air supply component is disposed on the heating chamber and is disposed opposite to the air inlet.

[0016] As a further optimization, the air supply assembly includes a cover, a fan motor, and a fan. The cover is disposed on the heating chamber and located above the housing. The cover has an upper cavity and a return air port is provided on the side away from the air outlet. The fan motor is disposed on the cover, and the fan is disposed at the output end of the fan motor and located in the upper cavity, which can realize circulating air supply.

[0017] As a further optimization, ventilation perforation plates are provided on both the side of the heating chamber near the air outlet and the side near the air return port. The vertical projection of a pair of ventilation perforation plates is located between the vertical projection of the air outlet and the vertical projection of the air return port. The arrangement of the ventilation perforation plates facilitates the limitation of the flow path of the air, which is beneficial to achieving uniform heating of the heating chamber.

[0018] As a further optimization, a temperature sensor is provided on the heating chamber.

[0019] As a further optimization, an air compressor is also included, which is connected to the fluid pipeline to facilitate airtightness testing before aging tests and cleaning after aging tests.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The material cart is mobile and can enter and exit the furnace body. Located outside the furnace body, the material cart has a large operating space, which makes it easy to place the product on the positioning fixture. It can more accurately complete the insertion of fluid pipes and cables, which can improve the positioning efficiency and accuracy of the product, and facilitate the batch placement of products into the heating chamber, thus improving the testing efficiency.

[0022] 2. A pair of material carts can enter the heating chamber from both sides of the furnace body. While one material cart is carrying the product for aging, the other material cart can be inserted to prepare materials, which can improve the efficiency of aging test. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention.

[0024] Figure 2 This is a structural diagram of the material cart of this utility model.

[0025] Figure 3 This is a structural diagram of the positioning fixture of this utility model.

[0026] Figure 4 This is a structural diagram of the furnace body of this utility model.

[0027] Figure 5 This is a structural diagram of the furnace body of this utility model after removing the outer shell.

[0028] Figure 6 This is a structural diagram of the heating mechanism of this utility model.

[0029] Figure 7 This is a structural view of the heating mechanism of this utility model from another side. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] like Figures 1 to 5As shown, an aging test device includes a furnace body 10, a heating mechanism 20, a material cart 30, a control cabinet 40, and a water chiller 50. The furnace body 10 includes a heating chamber 11 for heating and aging a product 60 (automotive electronic control unit) within it, and isolation chambers 12 disposed on opposite sides of the heating chamber 11. The heating chamber 11 has a heating cavity 110, and the isolation chamber 12 has an isolation cavity 120. A protective door 121 is provided on the side of the isolation chamber 12 away from the heating chamber 11, and an insulated door 122 is provided on the side closer to the heating chamber 11. The protective door 121 can be a double door, and the insulated door 122 can be a sliding door, enabling communication between the isolation cavity 120 and the outside world, as well as with the heating cavity 110. The heating mechanism 20 is disposed within the heating chamber. The heating chamber 11 is used to convey hot air into the heating chamber 11. A pair of material carts 30 can enter the heating chamber 11 through different isolation chambers 12. The material cart 30 includes a frame 300, positioning fixtures 31 and cable carriers 32. Multiple positioning fixtures 31 are set on the frame 300. The positioning fixtures 31 include at least a support plate 311 for placing the product 60, a positioning plate 313 for positioning the cable (not shown) that is inserted into the product 60, and a fluid pipe 312 for conveying fluid (such as coolant) into the product 60. The cable carrier 32 is set on the material cart 30 to store the cable and the fluid pipe 312. The control cabinet 40 is connected to the cable passing through the isolation chamber 12, and the water chiller 50 is connected to the fluid pipe 312 passing through the isolation chamber 12.

[0032] In this invention, initially, a material cart is located on the outer side of one side of the furnace body 10. This material cart 10 is equipped with multiple (e.g., thirty) positioning fixtures 31. The product 60 is placed on the support plate 311. The fluid pipe 312 is connected to the coolant pipe 601 of the product 60. A solenoid valve 3121 may be installed on the fluid pipe 312. The ends of the cables placed in the positioning holes 3130 on the positioning plate 313 are connected to the plugs 602 on the product 60. The protective door 121 and the insulation door 122 on one side of the furnace body 10 are opened sequentially, and the material cart 30 is pushed into the heating chamber 11. The doors are then closed sequentially. The insulated door 122 and protective door 121 are closed, and at the same time, the insulated door 122 and protective door 121 on the other side are also closed. Another material cart 30 is located on the other side of the furnace body 10. The control cabinet 40 and water cooler 50 are started, so that the product 60 located in the heating chamber 11 is in an electrically powered working state under the circulation of coolant. The heating mechanism 20 is started to blow hot air into the heating chamber 11 to simulate the practical working conditions of the product 60 (such as 120℃) to conduct an aging test on the product. At the same time, the product 60 can be placed on the material cart 30 located on the outside of the furnace body 10 for insertion and preparation, which can improve the testing efficiency.

[0033] In this invention, the material cart 30 is equipped with multiple positioning fixtures 31 to carry multiple products 60, and it is movable and can enter and exit the furnace body 10 (heating chamber 11). When the material cart 30 is outside the furnace body 10, it has a large operating space to facilitate the placement of products 60 on the positioning fixtures 31. Especially when connecting the coolant pipe 601 and plug 602 of the product 60, it can more accurately complete the insertion of fluid pipe 312 and cable, which can improve the positioning efficiency and accuracy of the product 60. Furthermore, by placing the material cart 30 into the heating chamber 11 for aging testing, the testing efficiency is improved. Moreover, by setting up a pair of material carts 30, they can enter the heating chamber 11 from both sides of the furnace body 10 respectively. While one material cart 30 carries the product 60 for aging, the other material cart 30 can be used for insertion and material preparation, which improves the aging test efficiency.

[0034] In addition, the isolation chamber 12 provided in this utility model can be used for wiring of cables and fluid pipes 312. After wiring, it is convenient to cooperate with the drag chain 32 on the material cart 30, ensuring that the part of the cables and fluid pipes 312 outside the material cart 30 is in an orderly state. At the same time, the presence of the isolation chamber 12 can improve the sealing effect of the heating chamber 11 and prevent air leakage.

[0035] Preferably, the support plate 311 is provided with a mounting plate 3141, and a pressure plate 3142 is hinged to the mounting plate 3141. After being rotated, the pressure plate 3142 presses down and abuts against the joint of the coolant pipe 601 of the product 60 located on the support plate 311, which can ensure the stability of the product 60. Furthermore, the support plate 311 is provided with a material arrival sensor 3143, which can detect whether the product 60 is located on the support plate 311 and whether the position is accurate.

[0036] Preferably, in order to ensure the stability and accuracy of the material cart 30 entering and exiting the furnace body 10, a track 331 is provided on the ground outside the furnace body 10 and on the bottom wall inside the furnace body 10, and the material cart 30 is slidably mounted on the track 331.

[0037] Furthermore, the lower end of the material cart 30 is provided with a support roller 332 that is misaligned with the track 331, which can facilitate the support and movement of the material cart 30. The support roller 332 is preferably self-locking, which can achieve stable positioning of the material cart 30.

[0038] Combination Figures 5 to 7As shown, the heating mechanism 20 includes an air supply assembly 21, a housing 22, and a heating wire 23. The housing 22 is disposed inside the heating chamber 11 and has a bottom cavity 2200. An air inlet 2201 and an air outlet 2202, which are connected to the bottom cavity 2200, are respectively provided on its upper end and side. The heating wire 23 is disposed inside the bottom cavity 2200 and is disposed opposite to the air inlet 2201 and the air outlet 2202. The air supply assembly 21 is disposed on the heating chamber 11 and is disposed opposite to the air inlet 2201. The air supply assembly 21 delivers flowing air into the bottom cavity 2200 through the air inlet 2201 and is heated by the heating wire 23 to form hot air. The hot air enters the heating chamber 11 through the air outlet 2202. By delivering the hot air, the temperature inside the heating chamber 11 reaches the set requirement.

[0039] Preferably, the air supply assembly 21 includes a cover 210, a fan motor 211, and a fan 212. The cover 210 is disposed on the heating chamber 11 and located above the housing 22. The cover 210 has an upper cavity 2100, and a return air port 2101 is provided on the side of the cover 210 away from the air outlet 2202. The fan motor 211 is disposed on the cover 210, and the fan 212 is disposed at the output end of the fan motor 211 and located inside the upper cavity 2100. The air supply is supplied through the cover 210 and the fan 212 located above the fan motor 211. The return air inlet 2101 can form a circulating air path. The specific air flow path is as follows: the air generated by the fan 212 driven by the fan motor 211 enters the bottom cavity 2200 through the air inlet 2201 and is heated. After flowing out through the air outlet 2202, it enters the heating chamber 11. Due to the continuous air supply, the air in the heating chamber 11 enters the upper cavity 2100 through the return air inlet 2101 and is transported to the lower cavity 2200 by the fan 212 again.

[0040] To ensure uniform heating within the heating chamber 11, ventilation perforated plates 111 are provided on both the side near the air outlet 2202 and the side near the return air outlet 2101 within the heating chamber 11. The vertical projection of a pair of ventilation perforated plates 111 is located between the vertical projection of the air outlet 2202 and the vertical projection of the return air outlet 2101.

[0041] In addition, a temperature sensor 112 is provided on the heating chamber 11, which can be used to monitor the heating temperature inside the heating chamber 11.

[0042] In another embodiment of this utility model, the aging test device further includes an air compressor 70, which is connected to a fluid pipeline 312. That is, control valves are respectively installed on the main pipes of the water chiller 50 and the air compressor 70 and connected to the fluid pipeline 312. When it is necessary to deliver coolant to the fluid pipeline 312 and to the coolant pipeline 601 of the product, the control valve on the main pipe of the water chiller 50 is opened and the control valve on the main pipe of the air compressor 70 is closed to deliver coolant. Since the product 60 needs to perform an airtightness test on the coolant pipeline 601 before the aging test and needs to drain the coolant in the coolant pipeline 601 after the aging test, the control valve on the main pipe of the water chiller 50 can be closed and the control valve on the main pipe of the air compressor 70 can be opened to perform airtightness test and draining by compressed air.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An aging test device, characterized in that, include: The furnace body includes a heating chamber for heating and aging products therein, and isolation chambers disposed on opposite sides of the heating chamber. A heating mechanism, which is installed on the heating chamber, is used to deliver hot air into the heating chamber. A pair of material carts, each capable of entering the heating chamber via different isolation compartments, each material cart includes a frame, positioning fixtures, and a cable chain. Multiple positioning fixtures are mounted on the frame, each fixture including at least a support plate for placing the product, a positioning plate for positioning cables that connect to the product, and a fluid conduit for conveying fluid into the product. The cable chain is mounted on the material cart for storing the cables and fluid conduits. The control cabinet is connected to the cables that pass through the isolation compartment. A water chiller is connected to a fluid conduit that passes through the isolation chamber.

2. The aging test device according to claim 1, characterized in that, The support plate is provided with a mounting plate, and a pressure plate is hinged to the mounting plate. After being rotated, the pressure plate presses down and abuts against the product located on the support plate.

3. An aging test apparatus according to claim 1 or 2, characterized in that, The support plate is equipped with a material arrival sensor.

4. The aging test device according to claim 1, characterized in that, The material cart also includes tracks disposed inside the furnace body and / or outside the furnace body.

5. An aging test apparatus according to claim 4, characterized in that, The lower end of the material cart is equipped with support rollers that are misaligned with the track.

6. The aging test apparatus according to claim 1, characterized in that, The heating mechanism includes an air supply component, a housing, and a heating wire. The housing is disposed inside the heating chamber and has a bottom cavity. An air inlet and an air outlet communicating with the bottom cavity are respectively provided at its upper end and side. The heating wire is disposed inside the bottom cavity and is disposed opposite to the air inlet and the air outlet. The air supply component is disposed on the heating chamber and is disposed opposite to the air inlet.

7. An aging test apparatus according to claim 6, characterized in that, The air supply assembly includes a cover, a fan motor, and a fan. The cover is disposed on the heating chamber and located above the box. The cover has an upper cavity and a return air port is provided on the side away from the air outlet. The fan motor is disposed on the cover, and the fan is disposed at the output end of the fan motor and located inside the upper cavity.

8. An aging test apparatus according to claim 7, characterized in that, Ventilation perforation plates are provided on both the side of the heating chamber closest to the air outlet and the side of the heating chamber closest to the air return outlet. The vertical projection of a pair of ventilation perforation plates is located between the vertical projection of the air outlet and the vertical projection of the air return outlet.

9. An aging test apparatus according to claim 1, characterized in that, The heating chamber is equipped with a temperature sensor.

10. An aging test apparatus according to claim 1, characterized in that, It also includes an air compressor, which is connected to the fluid pipeline.

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