A high-precision environmental parameter simulation type HIL test bench
By designing a snap-fit magnetic structure for the monitor holder and protective cover on the HIL test bench, the problem of easy monitor damage was solved, and the monitor was protected and cooled, thus improving its service life and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LIZHI ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-29
Smart Images
Figure CN224306039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test benches, and in particular to a high-precision environmental parameter simulation type HIL test bench. Background Technology
[0002] Currently, the system simulation model matches the complete hardware-in-the-loop test model of the HIL bench's VeriStand host computer, including energy storage strategies and CAN nodes. This model can perform tests on all functions of the BIS, including high-voltage power-on / off, charging / discharging, and sampling. It mainly includes communication and technical strategies. Communication primarily involves CAN information exchange between the BMS and internal HIL boards. The CAN signals emitted by each CAN node can be matched according to the specific project. The technical strategy mainly simulates the energy storage environment (solar power generation) for power-on / off, high-voltage power-on / off, charging / discharging, and fault detection. Other nodes perform corresponding logic processing based on the CAN signals emitted by the BMS and emit corresponding CAN signals. These signals can also be configured according to the host computer, which controls the HIL internal boards to output digital or analog quantities, thereby achieving the purpose of testing the BMS.
[0003] Currently, Chinese patent CN207424668U proposes a HIL real-time test system for body control modules. This component uses hardware-in-the-loop (HIL) simulation technology to install multiple body control modules on a test bench and connect them to the test cabinet and host computer, enabling rapid and safe HIL real-time testing of multiple body control modules (BCMs) in different states.
[0004] However, after the real-time testing system is in use, the test bench cannot effectively protect the monitor. Idle monitors exposed to the elements for extended periods will have a significantly increased probability of damage, indirectly affecting the monitor's lifespan. Utility Model Content
[0005] The purpose of this utility model is to solve the problems existing in the prior art as mentioned in the background section. To achieve the above objective, this utility model adopts the following technical solution:
[0006] A high-precision environmental parameter simulation HIL test bench includes a test machine body and a display base fixedly installed on the upper end of the test machine body. A display electrically connected to the test machine body is fixedly embedded in the upper end of the display base. The test bench also includes a protective cover. An opening is provided on the back of the display base, and the back of the display is located inside the opening. The protective cover consists of a heat sink and side plates fixedly connected to both sides of the heat sink. The upper surface of the display base is provided with slots on both sides of the display. Two sets of guide grooves are symmetrically provided at the bottom of the opening.
[0007] Preferably, a handle is fixedly connected to the outer side of the side plate.
[0008] Preferably, the slots on both sides correspond one-to-one with the side plates on both sides and the two sets of guide slots and are engaged.
[0009] Preferably, a positioning pin is fixedly connected to the bottom of the side plate, and a positioning hole is provided at the upper end of the slot to engage with the positioning pin. A friction pad is provided on the outer wall of the positioning pin to rub against the inner wall of the positioning hole.
[0010] Preferably, the upper end of the side plate is provided with multiple sets of embedding grooves, and a ball is movably embedded in the embedding groove, and the ball is in movable contact with the guide groove.
[0011] Compared with the prior art, the present invention has the following beneficial effects;
[0012] This invention protects the monitor by attaching a protective cover assembly to the upper part of the monitor stand, preventing the monitor from being exposed and increasing the probability of damage when not in use. When in use, the protective cover can be inserted into the outer opening of the monitor stand for storage. At this time, the heat sink inside the protective cover is in contact with the bottom of the monitor, reducing the heat generated during operation, improving overall functionality and the lifespan of the monitor. The protective cover is also very convenient to install and store, greatly improving the overall portability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the back structure of the display stand of this utility model;
[0015] Figure 3 This is a schematic diagram of the side structure of the heat sink of this utility model;
[0016] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model;
[0017] Figure 5 This is an enlarged structural diagram of section B of the present invention;
[0018] Figure 6 This is an enlarged structural diagram of the structure at point C of this utility model.
[0019] In the diagram: 1-Testing machine body, 2-Monitor base, 3-Monitor, 4-Opening, 5-Heat sink, 6-Side plate, 601-Positioning pin, 602-Embedded groove, 603-Ball bearing, 7-Handle, 8-Card slot, 801-Positioning hole, 9-Guide groove. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-6A high-precision environmental parameter simulation HIL test bench includes a test machine body 1 and a display stand 2 fixedly mounted on the upper part of the test machine body 1. It should be noted that the test machine 2 includes a heavy-duty connector (EDAC), a board chassis, and a programmable power supply. The board chassis houses a multi-functional board, a real-time board, and a CAN communication card. The various boards in the board chassis provide excitation signals to the vehicle body controller under test and communicate via a CAN network. The programmable power supply powers the vehicle body controller and the load equipment. The hardware within the test machine 2 is capable of performing HIL real-time testing. Functional testing, such as fault injection and power switching, is performed by fixing a monitor 3, which is electrically connected to the test machine body 1, into the upper end of the monitor base 2. It also includes a protective cover. The back of the monitor base 2 has an opening 4, and the back of the monitor 3 is located inside the opening 4. The protective cover consists of a heat sink 5 and side plates 6 fixedly connected to both sides of the heat sink 5. The upper surface of the monitor base 2 has slots 8 on both sides of the monitor 3. Two sets of guide grooves 9 are symmetrically arranged at the bottom of the opening 4. A handle 7 is fixedly connected to the outside of the side plate 6. The slots 8 on both sides correspond one-to-one with the side plates 6 on both sides and the two sets of guide grooves 9 and engage with each other.
[0025] The side plate 6 has a fixed locating pin 601 at its bottom, and the upper end of the slot 8 has a locating hole 801 that engages with the locating pin 601. Based on this structure, when using the device, the operator holds the handles 7 on both sides and lifts the protective cover, aligning it with the upper end of the monitor 3. Simultaneously, the side plates 6 on both sides of the protective cover engage with the slots 8 at the upper end of the monitor base 2. Then, the protective cover is lowered, securing it to the upper end of the monitor 3 for protection, preventing accidental damage. The locating pin 601 at the bottom of the side plate 6 engages with the locating hole 801 at the upper end of the slot 8 for positioning, limiting the protective cover's position and preventing slippage.
[0026] In addition, the outer wall of the positioning pin 601 is provided with a friction pad that makes frictional contact with the inner wall of the positioning hole 801. Under the weight of the protective cover itself, it can maintain a certain degree of stability. The frictional contact between the positioning pin 601 and the positioning hole 801 can prevent the protective cover from being easily lifted, thereby improving the relative safety and stability of the protection.
[0027] The side plate 6 has multiple sets of embedded grooves 602 evenly arranged on its upper end. A ball bearing 603 is movably embedded inside each groove 602 and makes contact with the guide groove 9. Based on this structure, when using the display 3, we need to hold the handle 7 and remove the protective cover. Then, we invert the protective cover and insert it into the opening 4 on the back of the display base 2 for storage. The side plates 6 on both sides of the protective cover slide and engage with the sliding groove 9. The ball bearings 603 embedded at the bottom of the side plates 6 facilitate sliding and pushing the side plates 6 into the opening 4. Simultaneously, the heat sink 5 between the side plates 6 is attached to the bottom of the display 3, thereby dissipating heat from the display 3 during operation and providing auxiliary heat dissipation.
[0028] Based on this, it should be added that magnetic absorbing pieces are provided on the side wall of the slide 9 and the side wall of the side plate 6 located in the inner cavity of the slide 9. The adjacent magnetic absorbing pieces are magnetically attracted to each other to maintain the stability of the side plate 6 inserted in the slide 9, which also plays an auxiliary stabilizing role in the placement of the protective cover in the opening 4.
[0029] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
Claims
1. A high-precision environmental parameter simulation HIL test bench, comprising a test machine body (1) and a display base (2) fixedly installed on the upper end of the test machine body (1), wherein a display (3) electrically connected to the test machine body (1) is fixedly embedded in the upper end of the display base (2), and further comprising a protective cover, characterized in that, The monitor stand (2) has an opening (4) on its back, and the back of the monitor (3) is located inside the opening (4). The protective cover consists of a heat sink (5) and side plates (6) fixedly connected to both sides of the heat sink (5). The upper surface of the monitor stand (2) is provided with slots (8) on both sides of the monitor (3). Two sets of guide grooves (9) are symmetrically provided at the bottom of the opening (4).
2. The high-precision environmental parameter simulation type HIL test bench according to claim 1, characterized in that, A handle (7) is fixedly connected to the outside of the side plate (6).
3. The high-precision environmental parameter simulation type HIL test bench according to claim 2, characterized in that, The slots (8) on both sides correspond one-to-one with the side plates (6) on both sides and the two sets of guide slots (9) and are engaged.
4. A high-precision environmental parameter simulation type HIL test bench according to claim 3, characterized in that, The bottom of the side plate (6) is fixedly connected with a positioning pin (601), and the upper end of the slot (8) is provided with a positioning hole (801) that engages with the positioning pin (601). The outer wall of the positioning pin (601) is provided with a friction pad that rubs against the inner wall of the positioning hole (801).
5. A high-precision environmental parameter simulation type HIL test bench according to claim 4, characterized in that, The upper end of the side plate (6) is uniformly provided with multiple sets of embedding grooves (602), and a ball (603) is movably embedded in the embedding groove (602). The ball (603) is in active contact with the guide groove (9).