A control cabinet for a generator set
By introducing connecting columns, clamps, and compression springs into the generator set control cabinet, the clamping force is automatically adjusted, solving the problem of cabinet shaking caused by loose nuts and improving the reliability and safety of the equipment.
Patent Information
- Application Number
- CN202610406045.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-31
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2046-03-31
AI Technical Summary
In existing generator control cabinets, nuts may loosen under vibration, leading to a decrease in clamping force and cabinet shaking, which affects the reliability and safety of equipment operation.
The design employs connecting columns, clamping plates, sliding grooves, and compression springs. The clamping force is automatically adjusted by the spring's elasticity to ensure cabinet stability and prevent wobbling caused by the weakening of clamping force.
It effectively prevents cabinet shaking, improves the operational reliability and safety of the control cabinet, ensures that the devices are not damaged, and facilitates the detection and restoration of the clamping force of the fastening nuts.
Smart Images
Figure CN121939238B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of generator control cabinet technology, specifically a control cabinet for generator sets. Background Technology
[0002] A generator is a device that converts mechanical energy into electrical energy. Depending on the drive method, common types include diesel generator sets and gas generator sets, widely used in backup power, main power, and mobile power supply scenarios. The control cabinet, used in conjunction with the generator, is the core control unit of the entire generator set. It integrates controllers, circuit breakers, voltage regulators, protection devices, and various instruments, responsible for starting, stopping, grid connection, voltage and frequency regulation, operating status monitoring, and overload and short-circuit fault protection functions. Among various generator installation methods, the most common is the open-type generator set, where the control cabinet is directly mounted on the base of the generator chassis. This integrated layout not only saves space and facilitates transportation and on-site placement but also makes the control wiring more compact and reliable, which is beneficial for daily operation and maintenance.
[0003] The existing generator control cabinet has gradually revealed its shortcomings during use, mainly in the following aspects:
[0004] The decrease in clamping force causes the cabinet to shake. Specifically, the control cabinet is fixed to the carrier by bolts and nuts. When tightened, the bolts and nuts together provide clamping force to the control cabinet and the carrier, so that the two fit tightly to achieve a stable connection. However, the generator set will generate continuous vibration during operation. Under the vibration environment, the nuts are prone to loosening, the axial distance between the bolts and nuts increases, and the clamping force provided decreases accordingly. As a result, the cabinet shakes significantly, which can easily damage the precision components inside the control cabinet and affect the reliability and safety of the equipment operation.
[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention
[0006] To address the shortcomings of existing technologies, the present invention aims to provide a control cabinet for generator sets. When the nuts of the control cabinet become loose during use, the system can automatically provide the clamping force required to stabilize the cabinet, thereby effectively preventing damage to components caused by cabinet shaking due to the weakening of clamping force, and significantly improving the operational reliability and safety of the control cabinet.
[0007] To address the above problems, the present invention provides the following technical solution:
[0008] A control cabinet for a generator set includes a cabinet body. Several mounting plates are fixedly provided at opposite ends of the cabinet body. Each mounting plate has a mounting hole at its end. A connecting column is inserted into the mounting hole. The outer wall of the connecting column has a threaded section. A fastening nut is threadedly connected to the threaded section. A movable ring is provided inside the connecting column. Several clamping plates are fixedly provided on the outer wall of the movable ring. Several sliding grooves are provided through the outer wall of the connecting column. The clamping plates extend through the sliding grooves to the outside and slide in connection with the connecting column. When the fastening nut is loosened, the clamping plates and the fastening nut maintain their original distance and jointly provide clamping force to stabilize the cabinet body.
[0009] As an optimized solution, a sliding circular plate is slidably provided on the inner wall of the connecting column, a spring sleeve is fixedly provided at the end of the sliding circular plate, a spring support is fixedly provided on the inner wall of the connecting column, a compression spring is sleeved on the outer wall of the spring support, one end of the compression spring is inserted into the spring sleeve, and the moving ring is inserted into the spring sleeve.
[0010] As an optimized solution, the end of the connecting column is provided with a threaded hole, and an adjusting bolt is threaded into the threaded hole.
[0011] As an optimized solution, the top of the clamping plate is provided with a sliding insert plate, the insert plate passes through and slides through a movable ring, and the outer wall of the spring sleeve is provided with a slot.
[0012] As an optimized solution, a fixing cylinder is fixedly provided at the end of the clamping plate, and a slidably arranged pull rod is provided through the end of the fixing cylinder. Two positioning grooves are provided at the end of the insert plate, and one end of the pull rod passes through the clamping plate and extends into the positioning groove.
[0013] As an optimized solution, a fixed circular plate is fixedly provided on the outer wall of the pull rod, the fixed circular plate is slidably connected to the fixed cylinder, and a return spring is sleeved on the outer wall of the pull rod, with the two ends of the return spring corresponding to abutting against the fixed cylinder and the fixed circular plate.
[0014] As an optimized solution, pull rings are provided at both the end of the pull rod and the top of the insert plate.
[0015] As an optimized solution, the mounting plate is provided with several stop grooves at its end.
[0016] As an optimized solution, a control panel is provided at the upper end of the cabinet.
[0017] As an optimized solution, the lower end of the cabinet is provided with an opening and a cabinet door is hinged thereto.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] 1. When installing the control cabinet, align the cabinet body with the carrier at the top of the base frame. The connecting column passes through the mounting plate and the carrier, and the clamping plate enters the stop groove. Then, screw in the fastening nut from the threaded section until the fastening nut is pressed against the carrier. At this point, the clamping plate is pressed against the mounting plate. The fastening nut and clamping plate together provide clamping force to stabilize the cabinet. Next, screw in the adjusting bolt from the threaded hole. When the adjusting bolt contacts the sliding circular plate, it pushes the sliding circular plate to slide, compressing the spring. When the spring sleeve moves through the moving ring to the limit position, pull the pull rod outward to release the restriction on the insertion plate, and push the insertion plate inward to insert it into the slot of the spring sleeve. At this point, the spring sleeve is connected to the moving ring (the final state is as described above). Figure 6 (As shown), then unscrew the adjusting bolts. As the generator set on top of the base frame operates, when the fastening nut loosens, the gap between the clamping plate and the fastening nut increases. The spring force at one end of the compression spring acts on the connecting column, and this spring force manifests as the clamping force of the fastening nut on the carrier. The spring force at the other end acts on the spring sleeve, and this spring force manifests as the clamping force of the clamping plate on the mounting plate. Therefore, under the action of the compression spring force, the connecting column moves away from the clamping plate, and the fastening nut moves closer to the clamping plate, so that the clamping plate and the fastening nut restore their original gap and jointly provide clamping force to maintain the stability of the cabinet (the final state described above is as follows). Figure 7 As shown in the figure, when the fastening nuts of the control cabinet become loose during use, the compression spring can provide the clamping force required to stabilize the cabinet, thereby effectively preventing damage to the components caused by cabinet shaking due to the decrease of clamping force, and significantly improving the operational reliability and safety of the control cabinet.
[0020] 2. This control cabinet can easily detect whether the fastening nuts are loose. When the clamp moves relative to the slide in the groove, it means that the fastening nuts have become loose. At this time, you only need to tighten the fastening nuts to restore them to their original positions to complete the state reset, thereby ensuring the continuous stability of the cabinet. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0022] Figure 1 This is a schematic diagram of the structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the connecting column outer wall of the present invention;
[0024] Figure 3 This is a schematic diagram of the internal structure of the connecting column of the present invention;
[0025] Figure 4 This is a schematic diagram of the insertion and mating structure of the movable ring and spring sleeve of the present invention;
[0026] Figure 5 This is a schematic diagram of the insertion plate limiting method of the present invention;
[0027] Figure 6 This is a schematic diagram of the structure of the present invention when the fastening nut is not loose;
[0028] Figure 7 This is a schematic diagram of the structure of the present invention after the fastening nut has loosened;
[0029] Figure 8 This is a schematic diagram of the complete installation of the present invention.
[0030] In the diagram: 1-Cabinet door; 2-Control panel; 3-Connecting column; 4-Cabinet body; 5-Stop groove; 6-Mounting hole; 7-Mounting plate; 8-Slide groove; 9-Threaded section; 10-Fastening nut; 11-Adjusting bolt; 12-Spring support; 13-Compression spring; 14-Moving ring; 15-Clamping plate; 16-Spring sleeve; 17-Sliding circular plate; 18-Threaded hole; 19-Insertion plate; 20-Slot; 21-Fixed circular plate; 22-Reset spring; 23-Pull ring; 24-Pull rod; 25-Fixed cylinder; 26-Positioning groove; 27-Base frame; 28-Carrier. Detailed Implementation
[0031] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0032] like Figures 1 to 8 As shown, a control cabinet for a generator set includes a cabinet body 4. Several mounting plates 7 are fixedly provided at opposite ends of the cabinet body 4. The mounting plates 7 have mounting holes 6 at their ends. A connecting column 3 is inserted into the mounting holes 6. The outer wall of the connecting column 3 has a threaded section 9. A fastening nut 10 is threadedly connected to the threaded section 9. A movable ring 14 is provided inside the connecting column 3. Several clamping plates 15 are fixedly provided on the outer wall of the movable ring 14. Several sliding grooves 8 are provided through the outer wall of the connecting column 3. The clamping plates 15 extend through the sliding grooves 8 to the outside and slide to connect with the connecting column 3. When the fastening nut 10 is loosened, the clamping plates 15 and the fastening nut 10 maintain the original distance and jointly provide clamping force to stabilize the cabinet body 4.
[0033] A sliding circular plate 17 is slidably provided on the inner wall of the connecting column 3. A spring sleeve 16 is fixedly provided at the end of the sliding circular plate 17. A spring support column 12 is fixedly provided on the inner wall of the connecting column 3. A compression spring 13 is sleeved on the outer wall of the spring support column 12. One end of the compression spring 13 is inserted into the spring sleeve 16. The moving ring 14 is inserted into the spring sleeve 16.
[0034] The end of the connecting column 3 is provided with a threaded hole 18, and an adjusting bolt 11 is connected to the threaded hole 18 by an internal thread.
[0035] The top of the clamping plate 15 is provided with a sliding insert plate 19, which passes through and slides through the movable ring 14. The outer wall of the spring sleeve 16 is provided with a slot 20.
[0036] A fixing cylinder 25 is fixedly provided at the end of the clamping plate 15. A sliding pull rod 24 is provided through the end of the fixing cylinder 25. Two positioning grooves 26 are provided at the end of the insert plate 19. One end of the pull rod 24 passes through the clamping plate 15 and extends into the positioning groove 26.
[0037] A fixed circular plate 21 is fixedly provided on the outer wall of the pull rod 24. The fixed circular plate 21 is slidably connected to the fixed cylinder 25. A return spring 22 is sleeved on the outer wall of the pull rod 24. The two ends of the return spring 22 abut against the fixed cylinder 25 and the fixed circular plate 21 respectively.
[0038] Pull rings 23 are provided at the end of the pull rod 24 and at the top of the insert plate 19.
[0039] The mounting plate 7 has several stop grooves 5 at its end.
[0040] The upper part of cabinet 4 is equipped with control panel 2.
[0041] The lower end of cabinet 4 has an opening and is hinged to a cabinet door 1.
[0042] The working principle of this device is as follows:
[0043] When installing the control cabinet, the cabinet body 4 is attached to the carrier 28 at the top of the base frame 27. The connecting column 3 passes through the mounting plate 7 and the carrier 28. The clamping plate 15 enters the stop groove 5. Then, the fastening nut 10 is screwed in from the threaded section 9 until the fastening nut 10 is pressed into contact with the carrier 28. At this time, the clamping plate 15 is pressed into contact with the mounting plate 7. The fastening nut 10 and the clamping plate 15 together provide clamping force to stabilize the cabinet body 4. Then, the adjusting bolt 11 is screwed in from the threaded hole 18. When the adjusting bolt 11 contacts the sliding circular plate 17, it pushes the sliding circular plate 17 to slide, and the compression spring 13 is compressed. When the spring sleeve 16 moves through the moving ring 14 to the limit position, the pull rod 24 is pulled outward to release the restriction on the insert plate 19. The insert plate 19 is pushed inward to insert into the slot 20 of the spring sleeve 16. At this time, the spring sleeve 16 is connected to the moving ring 14 (the final state is as described above). Figure 6(As shown), then the adjusting bolt 11 is unscrewed. As the generator set on top of the base frame 27 operates, when the fastening nut 10 loosens, the gap between the clamping plate 15 and the fastening nut 10 increases. The elastic force at one end of the compression spring 13 acts on the connecting column 3, and this elastic force manifests as the clamping force of the fastening nut 10 on the carrier 28. The elastic force at the other end acts on the spring sleeve 16, and this elastic force manifests as the clamping force of the clamping plate 15 on the mounting plate 7. Therefore, under the action of the compression spring 13, the connecting column 3 moves away from the clamping plate 15, and the fastening nut 10 moves closer to the clamping plate 15, so that the clamping plate 15 and the fastening nut 10 restore their original gap and jointly provide clamping force to maintain the stability of the cabinet 4 (the above final state is as shown). Figure 7 As shown, when the fastening nut 10 of the control cabinet becomes loose during use, the compression spring 13 can provide the clamping force required to stabilize the cabinet body 4, thereby effectively preventing the damage to the components caused by the shaking of the cabinet body 4 due to the decrease of clamping force, and significantly improving the operational reliability and safety of the control cabinet.
[0044] The control cabinet can easily detect whether the fastening nut 10 is loose. When the clamp 15 moves relative to the slide 8, it means that the fastening nut 10 has become loose. At this time, you only need to turn the fastening nut 10 back to its original position to complete the state reset, thereby ensuring the continuous stability of the cabinet 4.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A control cabinet for a genset, characterized by: The cabinet (4) includes a cabinet body (4), and several mounting plates (7) are fixedly provided at opposite ends of the cabinet body (4). The mounting plates (7) are provided with mounting holes (6) at their ends. A connecting column (3) is inserted into the mounting hole (6). The connecting column (3) is provided with a threaded section (9) on its outer wall. A fastening nut (10) is threadedly connected to the threaded section (9). A movable ring (14) is provided inside the connecting column (3). Several clamping plates (15) are fixedly provided on the outer wall of the movable ring (14). Several sliding grooves (8) are provided through the outer wall of the connecting column (3). The clamping plates (15) extend through the sliding grooves (8) to the outside and slide to connect with the connecting column (3). When the fastening nut (10) is loosened, the clamping plates (15) and the fastening nut (10) maintain the original distance and jointly provide clamping force to stabilize the cabinet body (4). The inner wall of the connecting column (3) is provided with a sliding circular plate (17), and the end of the sliding circular plate (17) is fixedly provided with a spring sleeve (16). The inner wall of the connecting column (3) is fixedly provided with a spring support (12), and the outer wall of the spring support (12) is provided with a compression spring (13). One end of the compression spring (13) is inserted into the spring sleeve (16), and the moving ring (14) is inserted into the spring sleeve (16). The top of the clamp (15) is provided with a sliding insert (19), the insert (19) passes through the movable ring (14) and is slidably connected to it, and the outer wall of the spring sleeve (16) is provided with a slot (20). The cabinet (4) is attached to the carrier (28) at the top of the base frame (27). The connecting column (3) passes through the mounting plate (7) and the carrier (28). Then, the fastening nut (10) is screwed in from the threaded section (9) until the fastening nut (10) and the carrier (28) are pressed into contact. At this time, the clamping plate (15) is pressed into contact with the mounting plate (7). The fastening nut (10) and the clamping plate (15) together provide clamping force to stabilize the cabinet (4). The sliding circular plate (17) is pushed to slide, and the compression spring (13) is compressed. The spring sleeve The cylinder (16) moves through the moving ring (14) to the limit position and pushes the insert plate (19) inward to insert it into the slot (20) of the spring sleeve (16). At this time, the spring sleeve (16) is connected to the moving ring (14). When the fastening nut (10) becomes loose, under the action of the compression spring (13), the connecting column (3) moves away from the clamping plate (15), and the fastening nut (10) moves closer to the clamping plate (15), so that the clamping plate (15) and the fastening nut (10) restore the original distance.
2. The control cabinet for a generator set according to claim 1, characterized in that: The end of the connecting column (3) is provided with a threaded hole (18), and an adjusting bolt (11) is threaded into the threaded hole (18).
3. The control cabinet for a generator set according to claim 1, characterized in that: The clamping plate (15) is fixedly provided with a fixing cylinder (25) at the end, and a sliding pull rod (24) is provided through the end of the fixing cylinder (25). The insert plate (19) is provided with two positioning grooves (26) at the end. One end of the pull rod (24) passes through the clamping plate (15) and extends into the positioning groove (26).
4. The control cabinet for a generator set according to claim 3, characterized in that: The outer wall of the pull rod (24) is fixedly provided with a fixed circular plate (21), the fixed circular plate (21) is slidably connected to the fixed cylinder (25), and the outer wall of the pull rod (24) is provided with a return spring (22), the two ends of the return spring (22) abut against the fixed cylinder (25) and the fixed circular plate (21).
5. The control cabinet for a generator set according to claim 3, characterized in that: Pull rings (23) are provided at the end of the pull rod (24) and at the top of the insert plate (19).
6. A control cabinet for a generator set according to claim 1, characterized in that: The mounting plate (7) has several stop grooves (5) at its end.
7. A control cabinet for a generator set according to claim 1, characterized in that: The upper part of the cabinet (4) is equipped with a control panel (2).
8. A control cabinet for a generator set according to claim 1, characterized in that: The lower end of the cabinet (4) is open and hinged with a cabinet door (1).