A general rotating screwing jig for new energy automobile inverter
By designing a rotary re-tightening fixture for new energy vehicle inverters, the problems of parts damage and QR code scanning failures caused by manual operation by employees were solved, achieving efficient screw tightening and QR code scanning confirmation, thus improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FLEXTRONICS COMPUTING (SUZHOU) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
Smart Images

Figure CN224333901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of new energy vehicle electronics, and in particular to a universal rotary re-tightening fixture for new energy vehicle inverters. Background Technology
[0002] In the new energy vehicle assembly section, it was discovered that employees were manually rotating the inverter products to retighten the screws on the back and scan the QR codes on the front of the products. This manual rotation and handheld barcode scanning method resulted in damage to some parts of the inverter PCBA, inconsistent employee rotation procedures, difficulty in control, and the occurrence of missed or unscanned QR codes on the front of the inverter PCBA. Utility Model Content
[0003] This utility model addresses the shortcomings of existing technologies by providing a universal rotary re-tightening fixture for new energy vehicle inverters. It solves the problems of manual rotation by operators and product collisions, significantly improving the handling of screw re-tightening and barcode scanning for new energy vehicle inverters, which can lead to issues such as product bumps, PCBA component collisions, and missed barcode scans. This greatly facilitates production and use.
[0004] To solve the above-mentioned technical problems, the present invention adopts a universal rotary re-tightening fixture for new energy vehicle inverters, comprising: a fixture fixing base plate, a front side plate, a rear side plate, a left side plate, and a right side plate symmetrically arranged on the fixture fixing base plate, and a product carrier plate rotatably connected to the left side plate and the right side plate via a rotating shaft. The product carrier plate is provided with a cavity for placing the inverter. A lower pressure cover plate is provided above the product carrier plate, and a protective cover panel is provided below the product carrier plate. One side of the lower pressure cover plate is connected to the product carrier plate via a hinge, and the other side is fastened to the product carrier plate via a first fixing buckle. A barcode scanner for scanning the PCBA QR code on the inverter is provided on the fixture fixing base plate.
[0005] In a preferred embodiment of this utility model, the fixture fixing base plate is also provided with a 24V power supply for powering the barcode scanner.
[0006] In a preferred embodiment of this utility model, two sets of positioning plates are symmetrically arranged on the lower surface of the product support plate, and the protective cover panel is connected to the positioning plates with a clearance fit or is detachably connected by screws.
[0007] In a preferred embodiment of this utility model, the protective cover panel is provided with a plurality of light-transmitting holes.
[0008] In a preferred embodiment of the present invention, the middle of the left side plate and the right side plate are provided with through holes, and the two ends of the rotating shaft pass through the two sets of through holes.
[0009] In a preferred embodiment of this utility model, the product carrier plate is provided with a second fixing buckle for positioning.
[0010] In a preferred embodiment of this utility model, a third fixing buckle is provided on the front side plate and the rear side plate.
[0011] The beneficial effects of this utility model are: it solves the problems of manual rotation by operators and collisions between products and keys, avoids damage to some parts of the inverter PCBA, and prevents problems such as difficulty in controlling and bumping due to inconsistent standard rotation actions of employees, resulting in missed or unscanned QR codes on the front of the inverter PCBA, thereby improving production quality and capacity. Attached Figure Description
[0012] 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, wherein:
[0013] Figure 1 This is a structural schematic diagram of the universal rotary re-tightening fixture for new energy vehicle inverters according to this utility model;
[0014] Figure 2 This is an exploded view of the universal rotary re-tightening fixture for inverters of new energy vehicles according to this utility model. Detailed Implementation
[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] Please see Figure 1-2This utility model discloses a universal rotary re-tightening fixture for inverters in new energy vehicles, comprising: a fixture fixing base plate 1, a front side plate 2, a rear side plate 3, a left side plate 4, and a right side plate 5 symmetrically arranged on the fixture fixing base plate, and a product support plate 6 rotatably connected to the left side plate and the right side plate via a rotating shaft. The front side plate, rear side plate, left side plate, and right side plate are all detachably mounted on the fixture fixing base plate by bolts and together form a frame. The left side plate and the right side plate have through holes 7 in the middle. The two sides of the product support plate are rotatably connected to the left side plate and the right side plate by rotating shafts passing through the two sets of through holes.
[0017] Specifically, the product carrier plate has a cavity 8 for placing the inverter. A lower pressure cover plate 9 is located above the product carrier plate, and a protective cover panel 10 is located below it. One side of the lower pressure cover plate is connected to the product carrier plate via a hinge, and the other side is fastened to the product carrier plate via a first fixing latch 11. Two sets of positioning plates 12 are symmetrically arranged on the lower surface of the product carrier plate. The protective cover panel is connected to the positioning plates with a clearance fit or is detachably connected via screws. The protective cover panel protects the inverter product when employees re-tighten the screws on the back of the inverter for inspection. There will be no issues with the inverter product being bumped or knocked. The protective cover panel has several light-transmitting holes 13. A barcode scanner 14 for scanning the PCBA QR codes on the inverter is installed on the fixture fixing base plate. A 24V power supply 15 for powering the barcode scanner is also installed on the fixture fixing base plate. The barcode scanner can first scan the QR codes of each PCBA on the inverter through the light-transmitting holes, and then perform multiple scans after rotating the product carrier plate 180°. An avoidance cavity 16 is opened on the lower pressure cover to prevent the problem of missing or not scanning the QR codes on the inverter PCBA during operation.
[0018] Specifically, the employee places the inverter 19 into the cavity of the product carrier plate and covers the upper and lower pressure plates. At this time, the first fixing buckle on the lower pressure plate will directly lock the product carrier plate. When the employee rotates the product carrier plate 180° using the pivot, the first fixing buckle fixes the product carrier plate, which facilitates the subsequent tightening of the screws on the protective cover panel on the back. After tightening, the rotation is repeated by 180 degrees, and finally the PCBA QR code is scanned for confirmation. The product carrier plate is equipped with a second fixing buckle 17 for positioning, and the front and rear side plates are equipped with a third fixing buckle 18. When the product carrier plate is rotated into place (i.e., when the lower pressure plate is facing up), the second fixing buckle is used to fix it to the front and rear side plates for positioning. The third fixing buckle is engaged with the protective cover panel after rotating 180 degrees, which plays a supporting role. The use of the product carrier plate will not cause the inverter product to be misaligned. The use of the universal rotating tightening fixture for inverters can well meet the quality control standards of production and customer needs.
[0019] The beneficial effects of this utility model are: it solves the problems of manual rotation by operators and product collisions, avoids damage to some parts of the inverter PCBA and inconsistent standard rotation actions of employees, which makes it difficult to control and cause bumps and knocks, resulting in the problem of missed or unscanned QR codes on the front of the inverter PCBA, thus improving production efficiency and quality.
[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A universal rotary re-tightening fixture for inverters in new energy vehicles, characterized in that, include: The fixture includes a base plate, a front side plate, a rear side plate, a left side plate, and a right side plate symmetrically arranged on the base plate, and a product carrier plate rotatably connected to the left side plate and the right side plate via a pivot. The product carrier plate has a cavity for placing the inverter. A lower pressure cover plate is provided above the product carrier plate, and a protective cover panel is provided below the product carrier plate. One side of the lower pressure cover plate is connected to the product carrier plate via a hinge, and the other side is fastened to the product carrier plate via a first fixing latch. A barcode scanner for scanning the PCBA QR code on the inverter is provided on the base plate.
2. The universal rotary re-tightening fixture for new energy vehicle inverters according to claim 1, characterized in that, The fixture base plate is also equipped with a 24V power supply for powering the barcode scanner.
3. A universal rotary re-tightening fixture for new energy vehicle inverters according to claim 1, characterized in that, Two sets of positioning plates are symmetrically arranged on the lower surface of the product support plate. The protective cover panel is connected to the positioning plates with a clearance fit or is detachably connected by screws.
4. A universal rotary re-tightening fixture for new energy vehicle inverters according to claim 3, characterized in that, The protective cover panel has several light-transmitting holes.
5. A universal rotary re-tightening fixture for new energy vehicle inverters according to claim 1, characterized in that, The left and right side plates are provided with through holes in the middle, and the two ends of the rotating shaft pass through the two sets of through holes.
6. A universal rotary re-tightening fixture for new energy vehicle inverters according to claim 1, characterized in that, The product carrier plate is provided with a second fixing buckle for positioning.
7. A universal rotary re-tightening fixture for new energy vehicle inverters according to claim 1, characterized in that, The front and rear side panels are provided with a third fixing buckle.