5results about How to "Reduce process links" patented technology

The application provides a packaging structure of a jack type power module, comprising: a first lead copper bar and a second lead copper bar, wherein the first and second lead copper bars are arranged on two sides of an inner surface of a plastic packaging shell; an integrated heat dissipation copper bottom plate is arranged in parallel with the lead copper bar group; each power chip group comprises a first power chip and a second power chip, wherein the first power chip and the second power chip are respectively welded on the first lead copper bar and the integrated heat dissipation copper bottom plate; each support group comprises a first metal frame and a second metal frame, one end of the first metal frame is connected with the corresponding first power chip, the other end of the first metal frame is connected with the integrated heat dissipation copper bottom plate, one end of the second metal frame is connected with the corresponding second lead copper bar, and the other end of the second metal frame is connected with the second power chip; and an embedded jack group is embedded in the packaging structure and is respectively welded on the lead copper bar group and the integrated heat dissipation copper bottom plate.

This invention discloses a workover rig, primarily relating to the field of workover operation technology. It includes a derrick and a second-level platform. An installation frame is located within the second-level platform, with a mounting base fixed at the far center of the frame. A robotic arm for gripping the tubing is mounted on the bottom of the mounting base. A cleaning module and a detection module are located at the end of the mounting base near the derrick. A buffer module is located on one or both sides of the installation frame. The cleaning module includes a cleaning ball and a second head. The cleaning ball comprises one or more overlapping air bladders, the maximum diameter of which corresponds to the inner diameter of the tubing. The second head is used to pressurize the top of the tubing filled with the cleaning ball. The detection module employs an eddy current detection device, including an extension cable and a probe. The probe has a vertical reciprocating stroke based on the extension cable's retraction and retraction. The buffer module is used to temporarily store tubing that passes the inspection. The beneficial effects of this invention are: it enables on-site inspection of tubing, and qualified tubing can be directly reused.

This utility model discloses a splash-proof popcorn fryer, including a fryer pot. Side blocks are symmetrically fixedly installed on both sides of the fryer pot. A plate frame is rotatably installed on one side of each side block. A base is fixedly installed below the plate frame. A driving mechanism is provided at the rear end of the fryer pot. The driving mechanism includes a back block, a mounting base, a first U-shaped plate, a first rotating plate, a hydraulic cylinder, a second rotating plate, and a second U-shaped plate. The back block is fixedly installed at the rear end of the fryer pot, the mounting base is fixedly installed at the rear end of the back block, the first U-shaped plate is fixedly installed below the mounting base, the first rotating plate is rotatably installed below the first U-shaped plate, and the hydraulic cylinder is located below the first rotating plate. This design enables automatic popcorn dispensing, increasing practicality and solving the problem of inconvenient automatic popcorn dispensing in traditional popcorn fryers, which requires manual operation and increases labor intensity.

This invention relates to a phased array antenna subarray, comprising an external interface layer, a beamforming network layer, an amplitude and phase multifunction layer, a low-noise amplifier (LNOA) layer, and an antenna layer. The antenna layer and the LNOA layer are disposed on a first metal-based PCB board, while the amplitude and phase multifunction layer, the LNOA layer, and the antenna layer are disposed on a second metal-based PCB board. The bottom layer of the first metal-based PCB board and the top layer of the second metal-based PCB board are connected together, achieving integrated encapsulation of the external interface layer, beamforming network layer, amplitude and phase multifunction layer, LNOA layer, and antenna layer. Both the first and second metal-based PCB boards are provided with multiple grounding and heat-conducting vias. This invention enables the phased array antenna to be lightweight, small, and thin while also possessing excellent heat dissipation and good scalability, allowing for expansion of the number of elements and frequency bands.

The application relates to the technical field of cellulose derivative preparation, and discloses crosslinked sodium carboxymethyl cellulose and a preparation method thereof. The crosslinked sodium carboxymethyl cellulose is prepared from sodium carboxymethyl cellulose as raw material by adopting a disulfide crosslinking agent-epoxy chloropropane composite crosslinking system, and through raw material pretreatment, phosphoric acid catalytic activation, microwave-ultrasonic synergistic crosslinking, pH adjustment and anhydrous ethanol post-treatment. The composite crosslinking system forms a double crosslinking network, the microwave-ultrasonic synergistic strengthening reaction is uniform, and an additional impurity removal step is not needed. The application simplifies the process, reduces the cost, and the product has high light transmittance, large viscosity, excellent swelling degree and good substitution uniformity, and can be used for high polymer materials.