Maintenance protection device for new energy heavy duty vehicle

Abstract

The utility model discloses a maintenance and protection device for a new energy heavy-duty vehicle. The maintenance and protection device comprises a middle support assembly, a middle connecting plate, a support and a connecting bolt. The middle of the middle connecting plate is connected with the middle support assembly, the two ends of the middle connecting plate are respectively connected with a support, and the supports are connected with connecting bolts. According to the utility model, the MSD plugging space is shielded through the middle connecting plate, so that the operation convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy field, concretely relates to a new energy heavy -duty vehicle maintenance protection device. BACKGROUND

[0002] The power battery pack of the new energy commercial vehicle has 450-750V high-voltage direct current, and when a person is electrocuted, it can cause fatal danger, therefore, a safety protection system must be arranged to ensure the safety of the driver, the passenger and the maintenance personnel when driving, riding and maintaining, and the maintenance personnel must wear necessary insulation protection articles when the new energy vehicle is maintained, and it is required to firstly disconnect the manual maintenance switch (MSD), and wait for more than 5 minutes before operation, and it is necessary to measure the voltage with a multimeter before operation, and it can be operated only when the voltage is below 36V, and after all problems are solved and the high-voltage cable is installed without error, finally, the MSD on the BMS is closed, and the vehicle can be powered on and operated again.

[0003] Because the manual maintenance switch (MSD) is very important in the vehicle maintenance stage, in order to avoid a major high-voltage accident caused by personnel misoperation closure in the whole maintenance process, the maintenance protection device is designed to prevent error twice, and effectively improve the safety of vehicle maintenance. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a protection device is set up, effectively avoid the above -mentioned problem occurs.

[0005] In order to solve the above -mentioned problems existing in the prior art, the technical scheme that the utility model adopts is:

[0006] A new energy heavy -duty vehicle maintenance protection device, comprising: intermediate support assembly, intermediate connecting plate, support and connecting bolt;

[0007] The middle part of the intermediate connecting plate is connected with the intermediate support assembly, one support is connected with the two ends of the intermediate connecting plate respectively, and the support is connected with the connecting bolt.

[0008] The utility model discloses a intermediate connecting plate to shield MSD plug -in space, improves the convenient operation.

[0009] The protection device structure is bolted by left and right supports, intermediate connecting plates, intermediate support assembly, the intermediate support assembly adopts the welding processing technology, can improve the consistency of product and reduce the processing cost.

[0010] The MSD protection device structure is connected with the peripheral parts of the vehicle through bolts and nuts, when the vehicle is maintained, the position of the intermediate connecting plate is adjusted, the MSD plug-in space is shielded, and the convenient operation is improved.

[0011] Further, the intermediate support assembly comprises a vertical plate and a bottom plate, the vertical plate is provided with a first connecting hole and a second connecting hole, and the first connecting hole and the second connecting hole are longitudinally distributed.

[0012] By arranging the first connecting hole and the second connecting hole, the mounting position of the intermediate connecting plate can be adjusted according to different vehicle models, so that the operation is more convenient.

[0013] The intermediate support assembly of the protection device is simply welded by two sheet metal parts, compared with stamping parts, the processing technology is simplified, the strength requirement of the support can be met, the support is not easy to shake during driving after being fixed, and the fixation is reliable.

[0014] The intermediate connecting plate is of a U-shaped structure, and the intermediate connecting plate is connected to the first connecting hole or the second connecting hole.

[0015] According to actual vehicle models, the intermediate connecting plate is designed as a U-shaped structure, so that the vehicle can be better connected.

[0016] Further, the support comprises a left support and a right support, the left support and the right support are respectively connected to two ends of the intermediate connecting plate, the support is provided with a bolt connecting hole and a mounting hole, and the mounting hole is a U-shaped hole.

[0017] The left support and the right support are of the same structure, except that the distribution positions are different, one is on the left side and the other is on the right side, the U-shaped mounting hole is arranged on the support, equivalent to two bolt mounting hole positions, and the mounting hole positions can be selected as required.

[0018] The left support and the right support of the MSD protection device are L-shaped asymmetric sheet metal structures, U-shaped hole positions are arranged, the intermediate connecting plate can be adjusted in the upper and lower positions, and the convenience of vehicle maintenance and resetting operation is realized.

[0019] Further, the intermediate support assembly is connected to a BMS support assembly, and the left support and the right support are respectively connected to rear suspensions of a cab.

[0020] The vertical plate of the intermediate support assembly is connected to the BMS support assembly, the support is connected to the rear suspensions of the cab through connecting bolts, and the connecting bolts pass through the bolt connecting holes.

[0021] The protection device has simple structure, simple bending, punching and welding processes, and is easy to assemble.

[0022] The MSD protection device has the advantages that the MSD plug-in space is shielded, maintenance is safer, the structure is simple, use is convenient, and the device is suitable for various vehicle models. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model discloses a structure diagram Figure 1.

[0024] Figure 2 Structure diagram of the present application Figure 2 .

[0025] Figure 3 Structure diagram of the present application Figure 3 .

[0026] Figure 4 For Figure 2 The perspective view of the intermediate support assembly.

[0027] Figure 5 For Figure 2 The perspective view of the support.

[0028] Figure 6 The installation diagram of the present application.

[0029] In the figure: 1 - support; 11 - bolt connection hole; 12 - mounting hole; 2 - intermediate connecting plate; 3 - intermediate support assembly; 31 - first connecting hole; 32 - second connecting hole; 33 - vertical plate; 34 - bottom plate; 4 - connecting bolt; 5 - BMS support assembly; 6 - cab rear suspension; 7 - manual maintenance switch. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the accompanying drawings and reference numerals.

[0031] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] The terms "first", "second", "third" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provision", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0035] Embodiment 1:

[0036] As Figures 1-3 shown, a new energy heavy vehicle maintenance protection device, comprising: intermediate support assembly 3, intermediate connecting plate 2, support 1 and connecting bolt 4;

[0037] The middle part of the intermediate connecting plate 2 is connected with the intermediate support assembly 3, and one support 1 is connected with the two ends of the intermediate connecting plate 2 respectively, and the support 1 is connected with the connecting bolt 4.

[0038] The utility model discloses a intermediate connecting plate 2 to shield MSD plug -in space, and the operation convenience is promoted.

[0039] The protection device structure is bolted by left and right supports 1, intermediate connecting plate 2 and intermediate support assembly 3, the intermediate support assembly 3 adopts welding processing technology, can promote product consistency and reduce processing cost.

[0040] The MSD protection device structure is connected with the surrounding parts of the whole vehicle through bolt and nut, when the vehicle is maintained, the position of the intermediate connecting plate 2 is adjusted, the MSD plug-in space is shielded, and the operation convenience is improved.

[0041] Embodiment 2:

[0042] As Figure 4 shown, the intermediate support assembly 3 includes a vertical plate 33 and a bottom plate 34, the vertical plate 33 is provided with a first connecting hole 31 and a second connecting hole 32, and the first connecting hole 31 and the second connecting hole 32 are longitudinally distributed.

[0043] By setting the first connecting hole 31 and the second connecting hole 32, the installation position of the intermediate connecting plate 2 can be adjusted according to different vehicle models, so that the operation is more convenient.

[0044] The intermediate support assembly 3 of the protection device is simply welded by two sheet metal parts, compared with the stamping parts, the processing technology is simplified, the strength requirement of the support 1 can be met, the support 1 is not easy to shake during driving after being fixed, and the fixation is reliable.

[0045] The intermediate connecting plate 2 is of "U" type structure, and the intermediate connecting plate 2 is connected to the first connecting hole 31 or the second connecting hole 32.

[0046] According to the actual vehicle model, the intermediate connecting plate 2 is designed as "U" type structure, which can be better connected with the vehicle.

[0047] Embodiment 3:

[0048] Based on embodiment 2, as Figure 4 and 5As shown, the support 1 includes left and right supports, which are connected to two ends of the middle connecting plate 2 respectively, and the support 1 is provided with bolt connecting holes 11 and mounting holes 12.

[0049] The left and right supports are of the same structure, but are distributed in different positions, one on the left and one on the right, and the mounting holes 12 in the shape of "U" are arranged on the support 1, which are equivalent to two bolt mounting hole positions and can be selected as required.

[0050] The left and right supports 1 of the MSD protection device are L-shaped asymmetric sheet metal structures, the U-shaped hole positions are arranged, the middle connecting plate 2 is adjustable in the upper and lower positions, and the convenience of vehicle maintenance and resetting operation is realized.

[0051] Embodiment 4:

[0052] On the basis of embodiment 3, as shown in the figure, the middle support assembly 3 is connected to the BMS support assembly 5, and the left support 1 and the right support 1 are connected to the rear suspension 6 of the cab. Figure 6

[0053] The vertical plate 33 of the middle support assembly 3 is connected to the BMS support assembly 5, the support 1 is connected to the rear suspension 6 of the cab through the connecting bolt 4, and the connecting bolt 4 passes through the bolt connecting hole 11.

[0054] The protection device has simple structure, bending, punching and welding processes, and is easy to assemble.

[0055] Specific working principle:

[0056] The BMS maintenance switch protection device of the application is arranged on the rear suspension beam of the cab and the BMS peripheral support, wherein the left and right protection supports are provided with holes, and the left and right supports are arranged on the peripheral parts (not limited to the rear suspension beam of the cab) through bolt connection;

[0057] The left and right supports of the protection device are provided with U-shaped holes for adjusting the upper and lower positions of the middle connecting plate, so as to realize the shielding of the MSD plug-in space.

[0058] The middle support assembly of the protection device is provided with two holes for lock matching connection, so as to realize the locking and fixing of the middle connecting plate.

[0059] The utility model is not limited to the above optional implementation, and anyone can derive other various forms of products under the inspiration of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.​

Claims

1. A new energy heavy-duty vehicle maintenance protection device, characterized in that, Include: The intermediate support assembly (3), the intermediate connecting plate (2), the support (1) and the connecting bolt (4); The middle part of the intermediate connecting plate (2) is connected with the intermediate support assembly (3), and the two ends of the intermediate connecting plate (2) are respectively connected with a support (1), and the support (1) is connected with a connecting bolt (4).

2. The new energy heavy-duty vehicle maintenance protection device according to claim 1, characterized in that: The intermediate support assembly (3) includes a vertical plate (33) and a bottom plate (34), the vertical plate (33) is provided with a first connecting hole (31) and a second connecting hole (32), and the first connecting hole (31) and the second connecting hole (32) are longitudinally distributed.

3. The new energy heavy-duty vehicle maintenance protection device according to claim 2, characterized in that: The intermediate connecting plate (2) is a "U" type structure, and the intermediate connecting plate (2) is connected with the first connecting hole (31) or the second connecting hole (32).

4. The new energy heavy-duty vehicle maintenance protection device according to claim 1, characterized in that: The support (1) includes a left support and a right support, the left support and the right support are respectively connected with the two ends of the intermediate connecting plate (2), the support (1) is provided with a bolt connecting hole (11) and a mounting hole (12), and the mounting hole (12) is a "U" type hole.

5. The new energy heavy-duty vehicle maintenance protection device according to claim 1, characterized in that: The intermediate support assembly (3) is connected with the BMS support assembly (5), and the left support (1) and the right support (1) are respectively connected with the cab rear suspension (6).

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