Water removal air knife of IGBT (Insulated Gate Bipolar Translator) test equipment
By designing a dewatering air knife for IGBT testing equipment, using a rotating loading platform and an air knife translation mechanism, a high-speed fan and the air knife body form a straight air trough to directly remove residual water at the bottom of the IGBT device, solving the problem of residual water being difficult to remove and improving the water removal efficiency.
Patent Information
- Application Number
- CN202422868568.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In existing IGBT device testing equipment, residual water is difficult to remove quickly, affecting the subsequent testing process.
A dewatering air knife for IGBT testing equipment is designed. The system utilizes a rotating loading platform and an air knife translation mechanism, combined with a high-speed blower and the air knife body. High-speed airflow is blown through a straight-line air slot to directly remove residual water from the bottom of the IGBT device.
The system achieves rapid and efficient removal of residual water at the bottom of the IGBT device, improves water removal efficiency, and ensures smooth progress of subsequent testing processes.
Smart Images
Figure CN223425670U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to IGBT testing equipment especially, a kind of IGBT testing equipment's water-removing air knife. BACKGROUND
[0002] In the testing equipment of existing IGBT device, generally using water cooling mode to cool down the IGBT device needing to be tested, for example, cooling water can be injected to the jig loaded with IGBT device, so that cooling water and the heat sink densely distributed on the bottom surface of IGBT device are in full contact to exchange heat, but after testing is completed, the heat sink densely distributed on the bottom of IGBT device carries more residual water, so these residual water directly affect subsequent testing process of IGBT device and the like because it cannot be removed in time. SUMMARY
[0003] The technical problem to be solved by the utility model is that, in view of the deficiencies of prior art, a water-removing air knife capable of quickly removing residual water on the bottom surface of IGBT device and having high water-removing efficiency is provided.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme.
[0005] A kind of water-removing air knife of IGBT testing equipment, it includes rotating feeding table, rotating feeding table is equipped with jig, the jig includes hollow, rotating feeding table is equipped with avoidance, avoidance is aligned with the hollow and is interconnected, the IGBT device to be tested is loaded on the jig, the wind knife translation mechanism is equipped at the lower of rotating feeding table, the movement end of wind knife translation mechanism is equipped with high-speed fan, the top of high-speed fan is equipped with wind knife body, wind cavity is equipped in wind knife body, wind cavity is connected with the outlet of high-speed fan, the top of wind knife body forms a character wind groove, the character wind groove is aligned with the heat sink densely distributed on the bottom of IGBT device, when wind knife translation mechanism drives high-speed fan and wind knife body translation, the airflow that blows out by the character wind groove removes water droplet in the heat sink.
[0006] Preferably, the top of wind knife body is equipped with wind collecting end, and the character wind groove is arranged at the top of wind collecting end.
[0007] Preferably, the width of wind collecting end gradually decreases from bottom to top.
[0008] Preferably, the wind knife translation mechanism includes horizontal motion cylinder, the movement end of horizontal motion cylinder is equipped with vertical motion cylinder, and high-speed fan is fixed to the movement end of vertical motion cylinder.
[0009] Preferably, a feeding table support is arranged below the rotary feeding table, and the lateral movement cylinder is fixed to the side of the feeding table support.
[0010] Preferably, a cooling box is arranged below the rotary feeding table, and the feeding table support, the air knife translation mechanism, the high-speed fan and the air knife body are arranged in the cooling box.
[0011] In the water-removing air knife of the IGBT testing equipment, the jig installed on the top of the rotary feeding table is used for loading the IGBT device to be tested, the IGBT device covers the hollowed-out opening and the air-avoiding opening, and forms a water cooling chamber with the water supply mechanism below the rotary feeding table. The IGBT device is cooled and cooled by injecting water into the water cooling chamber. After the test is completed and the drainage is completed, the rotary feeding table rotates to align the air-avoiding opening and the hollowed-out opening with the air knife body. At this time, the linear air slot is aligned with the heat dissipation elements densely arranged at the bottom of the IGBT device. The air knife translation mechanism drives the high-speed fan and the air knife body to translate along the length direction of the IGBT device. Based on the high-speed operation of the high-speed fan, high-speed airflow is generated in the air knife body. The high-speed airflow forms a linear air knife through the linear air slot, and directly vertically blows the heat dissipation elements densely arranged at the bottom of the IGBT device. Under the blowing of the linear high-speed airflow, the residual water at the bottom of the IGBT device is quickly removed, so that the water removal efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 For water-removing air knife structure Figure 1 ;
[0013] Figure 2 For water-removing air knife structure Figure 2 . DETAILED DESCRIPTION
[0014] The utility model will be described in more detail in connection with the drawings and examples.
[0015] The utility model discloses a kind of water-removing air knives of IGBT testing equipment, combine Figure 1 And Figure 2As shown, it includes a rotating loading platform 1, a fixture 4 is provided on the rotating loading platform 1, the fixture 4 includes a hollow opening 400, an air avoidance opening 102 is opened on the rotating loading platform 1, the air avoidance opening 102 is aligned with the hollow opening 400 and is connected to each other, the IGBT device 100 to be tested is loaded on the fixture 4, and an air knife translation mechanism 83 is provided below the rotating loading platform 1, and a high-speed fan 80 is provided at the moving end of the air knife translation mechanism 83, and the top of the high-speed fan 80 is provided. A wind knife body 81 is provided at the end, and a wind cavity is provided in the wind knife body 81, and the wind cavity is communicated with the air outlet of the high-speed fan 80. A straight wind groove 82 is formed on the top of the wind knife body 81, and the straight wind groove 82 is aligned with the heat sink 104 densely distributed at the bottom of the IGBT device 100. When the wind knife translation mechanism 83 drives the high-speed fan 80 and the wind knife body 81 to translate, the water droplets in the heat sink 104 are removed by the airflow blown out by the straight wind groove 82.
[0016] In the above structure, the fixture 4 installed on the top of the rotating loading platform 1 is used to load the IGBT device 100 to be tested. The IGBT device 100 covers the hollow opening 400 and the air avoidance opening 102, and at the same time forms a water-cooling chamber with the water supply mechanism below the rotating loading platform 1. The IGBT device 100 is cooled by injecting water into the water-cooling chamber. After the test is completed and the drainage is completed, the rotating loading platform 1 rotates to align the air avoidance opening 102 and the hollow opening 400 with the air knife body 81. At this time, the straight air slot 82 is aligned with the IGB The heat sink 104 is densely distributed at the bottom of the IGBT device 100, and the wind knife translation mechanism 83 drives the high-speed fan 80 and the wind knife body 81 to translate along the length direction of the IGBT device 100. Based on the high-speed operation of the high-speed fan 80, a high-speed airflow is generated in the wind knife body 81. The high-speed airflow forms a straight-line wind knife through the straight-line wind slot 82 and is directly vertical to the heat sink 104 densely distributed at the bottom of the IGBT device 100. Under the blowing of the straight-line high-speed airflow, the residual water at the bottom of the IGBT device 100 is quickly removed, so the water removal efficiency is higher.
[0017] In order to make the high-speed airflow sent out by the wind knife body 81 more concentrated, in this embodiment, a wind collecting terminal 84 is provided on the top of the wind knife body 81, and the straight wind slot 82 is provided at the top of the wind collecting terminal 84.
[0018] Furthermore, the width of the wind collecting end 84 gradually decreases from bottom to top. The wind collecting end 84 is a narrow-top, wide-bottom structure. An air cavity is provided within the air knife body 81. When the high-speed airflow in the air cavity passes through the wind collecting end 84, the wind collecting end 84 converges the high-speed airflow, causing it to be concentrated through the straight-line air slot 82 and blown toward the bottom surface of the IGBT device 100. Combined with the lateral movement of the air knife translation mechanism 83, the straight-line air knife sweeps across the bottom surface of the IGBT device 100, thereby efficiently removing residual water from the bottom surface of the IGBT device 100.
[0019] Regarding the specific movement of the wind knife translation mechanism 83, in this embodiment, the wind knife translation mechanism 83 includes a transverse motion cylinder 830, a vertical motion cylinder 831 being provided at the motion end of the transverse motion cylinder 830, and the high-speed blower 80 being fixed to the motion end of the vertical motion cylinder 831. In the above structure, the transverse motion cylinder 830 and the vertical motion cylinder 831 cooperate to drive the wind knife body 81 to translate to below the IGBT device 100. Thereafter, the vertical motion cylinder 831 drives the wind knife body 81 to rise and approach the bottom surface of the IGBT device 100. During the sweeping operation, the transverse motion cylinder 830 again drives the wind knife body 81 to translate, so that the straight-line wind knife quickly removes residual water from the bottom surface of the IGBT device 100.
[0020] In order to install and fix the wind knife translation mechanism 83 , in this embodiment, a loading platform support 103 is provided below the rotating loading platform 1 , and the transverse motion cylinder 830 is fixed to the side of the loading platform support 103 .
[0021] In this embodiment, a cooling box is provided below the rotating loading platform 1. The loading platform support 103, the air knife translation mechanism 83, the high-speed fan 80, and the air knife body 81 are all located within the cooling box. In the above structure, the high-speed fan 80 can directly draw air into the cooling box. This structure allows the high-speed airflow to circulate directly within the cooling box, thereby maintaining a balanced atmosphere inside and outside the box.
[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.
Claims
1. A dewatering air knife for IGBT testing equipment, characterized in that: It includes a rotating loading platform, a jig is provided on the rotating loading platform, the jig includes a hollow opening, an air avoidance opening is opened on the rotating loading platform, the air avoidance opening is aligned with the hollow opening and is connected to each other, the IGBT device to be tested is loaded on the jig, a wind knife translation mechanism is provided below the rotating loading platform, a high-speed fan is provided at the moving end of the wind knife translation mechanism, a wind knife body is provided at the top of the high-speed fan, a wind knife body is provided in the wind knife body, a wind cavity is provided in the wind knife body, the wind cavity is connected to the air outlet of the high-speed fan, a straight wind groove is formed on the top of the wind knife body, the straight wind groove is aligned with the heat sink densely distributed on the bottom of the IGBT device, when the wind knife translation mechanism drives the high-speed fan and the wind knife body to translate, the air flow blown out by the straight wind groove removes water droplets in the heat sink.
2. The dewatering air knife of the IGBT testing equipment according to claim 1, characterized in that: The top of the wind knife body is provided with an air collecting end head, and the straight air trough is provided at the top end of the air collecting end head.
3. The dewatering air knife of the IGBT testing equipment according to claim 2, characterized in that: The width of the air collecting end head gradually decreases from bottom to top.
4. The dewatering air knife of the IGBT testing equipment according to claim 1, characterized in that: The wind knife translation mechanism includes a transverse motion cylinder, a vertical motion cylinder is provided at the motion end of the transverse motion cylinder, and the high-speed fan is fixed to the motion end of the vertical motion cylinder.
5. The dewatering air knife of the IGBT testing equipment according to claim 4, characterized in that: A loading platform support is provided below the rotating loading platform, and the transverse motion cylinder is fixed to the side of the loading platform support.
6. The dewatering air knife of the IGBT testing equipment according to claim 5, characterized in that: A cooling box is provided below the rotating loading platform, and the loading platform support, the wind knife translation mechanism, the high-speed fan and the wind knife body are all arranged in the cooling box.