Battery frame and electric engineering vehicle

Abstract

The utility model provides a battery frame and an electric engineering vehicle, and belongs to the technical field of electric vehicles. The battery frame comprises a bottom-layer bracket, a cover plate and at least one single-layer bracket connected between the bottom-layer bracket and the cover plate, each of the bottom-layer bracket and the single-layer bracket comprises a supporting bottom support for supporting a battery and a stand column fixed on the supporting bottom support, and the top end of the stand column of the bottom-layer bracket is in direct supporting contact with the supporting bottom support of the single-layer bracket above; a first connecting plate used for installing a bolt to be fixedly connected with the supporting bottom support of the upper single-layer bracket is arranged at the top end of the stand column of the bottom-layer bracket, and / or the top end of the stand column of the single-layer bracket directly makes contact with the supporting bottom support or the cover plate of the upper single-layer bracket in a supporting mode. The top ends of the stand columns of the single-layer brackets are provided with second connecting plates used for installing bolts so as to be fixedly connected with the supporting bottom supports or the cover plates of the upper single-layer brackets. An upper frame of a bottom-layer bracket and / or a single-layer bracket is omitted, so that the overall height of the battery frame can be reduced, and the space occupied by the height is reduced.

Description

Technical Field

[0001] The utility model relates to a battery frame and an electric engineering vehicle, belonging to the technical field of electric vehicles. Background Art

[0002] Electric engineering vehicles generally require multiple batteries to provide them with sufficient power. The batteries are installed on a battery frame, and the battery frame is arranged on the vehicle frame. Due to the large number and size of the batteries, there are problems such as taking up a lot of space, inconvenient disassembly and assembly, and safety risks.

[0003] In this regard, the Chinese utility model patent with the authorization announcement number CN218123587U discloses a battery bracket assembly (i.e., a battery frame) for an electric loader, which includes a lower layer welding assembly (i.e., a bottom bracket), a cover plate welding assembly (i.e., a cover plate), and one or more middle layer welding assemblies (i.e., single-layer brackets), and the upper and lower adjacent parts are detachably connected by corresponding connecting plates and bolt assemblies, so that they can be installed one layer at a time, and according to the number of batteries, a suitable number of single-layer brackets can be added to avoid the battery frame occupying a large space and the battery being inconvenient to disassemble and assemble. In addition, a fixing plate is provided at the bottom of the bottom bracket, and a shock absorber is provided on the fixing plate, which is fixedly connected to the frame to reduce the vibration of the loader when it is bumpy.

[0004] However, the structures of the bottom bracket and the single-layer bracket in the above-mentioned battery frame include an upper frame, a lower frame and columns fixed between the upper and lower frames. The upper frame of the bottom bracket is in contact with the lower frame support of the single-layer bracket, and adjacent single-layer brackets are also in contact through frame supports. The upper frame of the topmost single-layer bracket is in contact with the cover support. Since the frames have a certain thickness, the overall height of the battery frame is relatively high, occupying a large height space, and cannot be adapted to application scenarios with limited space. Utility Model Content

[0005] The purpose of the utility model is to provide a battery frame to solve the problem that the structures of the bottom bracket and the single-layer bracket in the existing battery frame both include an upper frame and a lower frame, resulting in the overall height of the battery frame being relatively high and occupying a large height space; the purpose of the utility model is also to provide an electric engineering vehicle to solve the above-mentioned problem.

[0006] In order to achieve the above purpose, the battery frame in the utility model adopts the following technical solutions:

[0007] A battery frame comprises a bottom bracket, a cover plate and at least one single-layer bracket connected therebetween, wherein the bottom bracket and the single-layer bracket both comprise a supporting base bracket for supporting batteries and a column fixed on the supporting base bracket, the top end of the column of the bottom bracket is directly in contact with the supporting base bracket of the upper single-layer bracket, the top end of the column of the bottom bracket is provided with a first connecting plate for installing bolts to be fixedly connected to the supporting base bracket of the upper single-layer bracket, and / or the top end of the column of the single-layer bracket is directly in contact with the supporting base bracket or the cover plate of the upper single-layer bracket, and the top end of the column of the single-layer bracket is provided with a second connecting plate for installing bolts to be fixedly connected to the supporting base bracket or the cover plate of the upper single-layer bracket.

[0008] The beneficial effect of the above technical solution is that: the utility model provides an improved battery frame, which includes three improvement schemes. The first scheme is that the top of the column of the bottom bracket is directly in contact with the supporting bottom bracket of the upper single-layer bracket, and the top of the column of the bottom bracket is provided with a first connecting plate for installing bolts to be fixedly connected with the supporting bottom bracket of the upper single-layer bracket, thereby eliminating the frame at the upper end of the bottom bracket, and the fixation with the supporting bottom bracket of the upper single-layer bracket is ensured by the first connecting plate. Under this scheme, the height of the overall battery frame can be reduced by one frame, thereby reducing the height space occupancy.

[0009] Solution 2 is that the top of the column of the single-layer bracket is directly in contact with the supporting bottom bracket or cover plate of the upper single-layer bracket, and the top of the column of the single-layer bracket is provided with a second connecting plate for installing bolts to be fixedly connected with the supporting bottom bracket or cover plate of the upper single-layer bracket, thereby eliminating the frame at the upper end of the single-layer bracket, and the second connecting plate is used to ensure the fixation with the supporting bottom bracket or cover plate of the upper single-layer bracket. Under this solution, the height of the overall battery frame can be reduced by at least one frame, and the more single-layer brackets there are in the middle, the greater the reduction in height, thereby reducing the height space occupancy;

[0010] Plan three is plan one + plan two, which has the effects of both plans. The overall height of the battery frame is further reduced, and the height occupies the smallest space.

[0011] Furthermore, the columns of the bottom bracket and the single-layer bracket each include two L-shaped vertical plates, and the first connecting plate and the second connecting plate are respectively welded and fixed to the two vertical plates of the corresponding column and are located in the angular space surrounded by the two vertical plates.

[0012] Furthermore, the top surfaces of the first connecting plate and the second connecting plate are respectively flush with the top surfaces of the two vertical plates of the corresponding columns.

[0013] Furthermore, the supporting base of the single-layer bracket includes a supporting plate, the upper surface of the supporting plate is used to support the battery, and the side plate is vertically fixed on the bottom surface of the supporting plate. The two vertical plates of the column of the single-layer bracket are of different lengths and constitute a long vertical plate and a short vertical plate respectively. The top surfaces of the long vertical plate and the short vertical plate are flush, and the bottom end of the long vertical plate and the corresponding side plate form an angular space and a third connecting plate for installing bolts to be fixedly connected to the first connecting plate or the second connecting plate is welded and fixed therebetween.

[0014] Furthermore, the supporting bottom brackets of the bottom bracket and the single-layer bracket both include a supporting plate, and the upper surface of the supporting plate is used to support the battery.

[0015] Furthermore, the support plate is provided with weight-reducing and heat-dissipating holes which penetrate the support plate from top to bottom.

[0016] Furthermore, the support plate is a rectangular plate, the bottom bracket and the single-layer bracket have four columns respectively and are located at the four corners of the corresponding support plates, and the front end, rear end, left end and right end of the bottom surface of the support plate of the bottom bracket are respectively vertically fixed with side plates.

[0017] Furthermore, the column of the bottom bracket has a protruding portion extending downward from the support plate, a bottom plate is welded and fixed between the protruding portion and the corresponding side plate, the bottom plate is located below the support plate, and a shock absorber is installed on the bottom plate.

[0018] Furthermore, a reinforcement plate is welded and fixed between the bottom plate and the corresponding side plates and / or columns.

[0019] Furthermore, the bottom bracket and the single-layer bracket each have four columns located at four corners of the corresponding supporting base, and a lifting plate is welded and fixed between each column and the corresponding supporting base.

[0020] Furthermore, the bottom bracket and the single-layer bracket have four columns respectively and are located at the four corners of the corresponding supporting base bracket, and the columns of each single-layer bracket correspond to the columns of the bottom bracket up and down; the two vertical plates of the columns of the bottom bracket and the single-layer bracket are the first vertical plate and the second vertical plate respectively, the thickness of the first vertical plate extends in the front-to-back direction, and the thickness of the second vertical plate extends in the left-to-right direction, the left ends of the front and rear two first vertical plates at the left end of the supporting base bracket are respectively aligned with the two second vertical plates at the left end of the supporting base bracket, and the right ends of the front and rear two first vertical plates at the right end of the supporting base bracket respectively extend to the right sides of the two second vertical plates at the right end of the supporting base bracket.

[0021] In order to achieve the above-mentioned purpose, the electric engineering vehicle in the utility model adopts the following technical solutions:

[0022] An electric engineering vehicle comprises a frame and a battery frame mounted on the frame, wherein the battery frame comprises a bottom bracket, a cover plate and at least one single-layer bracket connected therebetween, wherein the bottom bracket and the single-layer bracket both comprise a supporting base bracket for supporting the battery and a column fixed on the supporting base bracket, wherein the top end of the column of the bottom bracket is directly in contact with the supporting base bracket of the upper single-layer bracket, and the top end of the column of the bottom bracket is provided with a first connecting plate for installing bolts to be fixedly connected to the supporting base bracket of the upper single-layer bracket, and / or the top end of the column of the single-layer bracket is directly in contact with the supporting base bracket or the cover plate of the upper single-layer bracket, and the top end of the column of the single-layer bracket is provided with a second connecting plate for installing bolts to be fixedly connected to the supporting base bracket or the cover plate of the upper single-layer bracket.

[0023] The beneficial effect of the above technical solution is that: the utility model provides an improved electric engineering vehicle, the improvement lies in the battery frame, which includes three improvement schemes. The first scheme is that the top of the column of the bottom bracket is directly in contact with the supporting bottom bracket of the upper single-layer bracket, and the top of the column of the bottom bracket is provided with a first connecting plate for installing bolts to be fixedly connected to the supporting bottom bracket of the upper single-layer bracket, thereby eliminating the frame at the upper end of the bottom bracket, and the fixation with the supporting bottom bracket of the upper single-layer bracket is ensured by the first connecting plate. Under this scheme, the height of the overall battery frame can be reduced by one frame, thereby reducing the height space occupancy.

[0024] Solution 2 is that the top of the column of the single-layer bracket is directly in contact with the supporting bottom bracket or cover plate of the upper single-layer bracket, and the top of the column of the single-layer bracket is provided with a second connecting plate for installing bolts to be fixedly connected with the supporting bottom bracket or cover plate of the upper single-layer bracket, thereby eliminating the frame at the upper end of the single-layer bracket, and the second connecting plate is used to ensure the fixation with the supporting bottom bracket or cover plate of the upper single-layer bracket. Under this solution, the height of the overall battery frame can be reduced by at least one frame, and the more single-layer brackets there are in the middle, the greater the reduction in height, thereby reducing the height space occupancy;

[0025] Plan three is plan one + plan two, which has the effects of both plans. The overall height of the battery frame is further reduced, and the height occupies the smallest space.

[0026] Furthermore, the columns of the bottom bracket and the single-layer bracket each include two L-shaped vertical plates, and the first connecting plate and the second connecting plate are respectively welded and fixed to the two vertical plates of the corresponding column and are located in the angular space surrounded by the two vertical plates.

[0027] Furthermore, the top surfaces of the first connecting plate and the second connecting plate are respectively flush with the top surfaces of the two vertical plates of the corresponding columns.

[0028] Furthermore, the supporting base of the single-layer bracket includes a supporting plate, the upper surface of the supporting plate is used to support the battery, and the side plate is vertically fixed on the bottom surface of the supporting plate. The two vertical plates of the column of the single-layer bracket are of different lengths and constitute a long vertical plate and a short vertical plate respectively. The top surfaces of the long vertical plate and the short vertical plate are flush, and the bottom end of the long vertical plate and the corresponding side plate form an angular space and a third connecting plate for installing bolts to be fixedly connected to the first connecting plate or the second connecting plate is welded and fixed therebetween.

[0029] Furthermore, the supporting bottom brackets of the bottom bracket and the single-layer bracket both include a supporting plate, and the upper surface of the supporting plate is used to support the battery.

[0030] Furthermore, the support plate is provided with weight-reducing and heat-dissipating holes which penetrate the support plate from top to bottom.

[0031] Furthermore, the support plate is a rectangular plate, the bottom bracket and the single-layer bracket have four columns respectively and are located at the four corners of the corresponding support plates, and the front end, rear end, left end and right end of the bottom surface of the support plate of the bottom bracket are respectively vertically fixed with side plates.

[0032] Furthermore, the column of the bottom bracket has a protruding portion extending downward from the support plate, a bottom plate is welded and fixed between the protruding portion and the corresponding side plate, the bottom plate is located below the support plate, and a shock absorber is installed on the bottom plate.

[0033] Furthermore, a reinforcement plate is welded and fixed between the bottom plate and the corresponding side plates and / or columns.

[0034] Furthermore, the bottom bracket and the single-layer bracket each have four columns located at four corners of the corresponding supporting base, and a lifting plate is welded and fixed between each column and the corresponding supporting base.

[0035] Furthermore, the bottom bracket and the single-layer bracket have four columns respectively and are located at the four corners of the corresponding supporting base bracket, and the columns of each single-layer bracket correspond to the columns of the bottom bracket up and down; the two vertical plates of the columns of the bottom bracket and the single-layer bracket are the first vertical plate and the second vertical plate respectively, the thickness of the first vertical plate extends in the front-to-back direction, and the thickness of the second vertical plate extends in the left-to-right direction, the left ends of the front and rear two first vertical plates at the left end of the supporting base bracket are respectively aligned with the two second vertical plates at the left end of the supporting base bracket, and the right ends of the front and rear two first vertical plates at the right end of the supporting base bracket respectively extend to the right sides of the two second vertical plates at the right end of the supporting base bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a battery frame embodiment of the utility model from one viewing angle;

[0037] Figure 2 A three-dimensional diagram of another perspective of the battery frame embodiment of the utility model;

[0038] Figure 3A three-dimensional diagram of another perspective of the battery frame embodiment of the utility model;

[0039] Figure 4 This is a diagram showing the installation state of a battery frame embodiment of the utility model;

[0040] Figure 5 A three-dimensional diagram of the bottom bracket in the battery frame embodiment of the utility model;

[0041] Figure 6 It is a side view of a single-layer bracket in an embodiment of a battery frame of the present utility model.

[0042] In the figure: 1. bottom bracket; 1-1. bottom support plate; 1-2. bottom side plate; 1-3. bottom first vertical plate; 1-4. bottom second vertical plate; 1-5. first connecting plate; 1-6. first reinforcing plate; 1-7. second reinforcing plate; 1-8. third reinforcing plate; 1-9. bottom plate; 1-10. bottom lifting plate; 2. single-layer bracket; 2-1. single-layer support plate; 2-2. single-layer side plate; 2-3. single-layer first vertical plate; 2-4. single-layer second vertical plate; 2-5. second connecting plate; 2-6. third connecting plate; 2-7. single-layer lifting plate; 3. cover plate; 3-1. top plate; 3-2. top side plate; 3-3. fourth connecting plate; 4. shock absorber; 4-1. large washer; 4-2. main ring; 4-3. secondary ring; 5. fastener; 6. frame; 7. first bolt; 8. second bolt. DETAILED DESCRIPTION

[0043] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0044] The utility model improves the existing battery frame, wherein the upper frame is omitted for the bottom bracket and the middle single-layer bracket, and the columns of the bottom bracket and the single-layer bracket are directly in contact with the component support above and are fixedly connected by connecting plates and bolts. By omitting multiple upper frames, the overall height of the battery frame is greatly reduced, and the height occupies a small space, which can adapt to application scenarios with limited space.

[0045] Specifically, the embodiment of the battery frame in the utility model:

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the battery frame includes a bottom bracket 1, a cover plate 3, and at least one single-layer bracket 2 connected therebetween. In this embodiment, there are three single-layer brackets 2, wherein the bottom bracket 1 and the single-layer bracket 2 both include a support base for supporting the battery and a column fixed on the support base. The top of the column of the bottom bracket 1 is directly in contact with the support base of the upper single-layer bracket 2, and the top of the column of the bottom bracket 1 is provided with a first connecting plate 1-5 for installing a first bolt 7 to be fixedly connected to the support base of the upper single-layer bracket 2. At the same time, the top of the column of the single-layer bracket 2 is directly in contact with the support base or the cover plate 3 of the upper single-layer bracket 2, and the top of the column of the single-layer bracket 2 is provided with a second connecting plate 2-5 for installing a second bolt 8 to be fixedly connected to the support base or the cover plate 3 of the upper single-layer bracket 2.

[0047] In this embodiment, the bottom bracket 1 and the single-layer bracket 2 both include a support plate, the upper surface of the support plate is used to support the battery, and side plates are vertically fixed to the front end, rear end, left end and right end of the bottom surface of the support plate, respectively. The bottom bracket 1 and the single-layer bracket 2 have four columns respectively and are located at the four corners of the corresponding support plates, and the columns of the bottom bracket 1 and the single-layer bracket 2 both include two vertical plates arranged in an L shape.

[0048] First, take the bottom bracket 1 as an example. Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the support plate of the bottom bracket 1 is the bottom support plate 1-1, which is a rectangular plate, and is provided with weight-reducing heat dissipation holes that penetrate the bottom support plate 1-1 from top to bottom. The bottom bracket 1 has four columns and is located at the four corners of the bottom support plate 1-1. The two L-shaped vertical plates of a single column of the bottom bracket 1 are the first bottom vertical plate 1-3 and the second bottom vertical plate 1-4. The thickness of the first bottom vertical plate 1-3 extends in the front-to-back direction, and the thickness of the second bottom vertical plate 1-4 extends in the left-right direction. The side plate on the bottom surface of the bottom support plate 1-1 is the bottom side plate 1-2. The first bottom vertical plate 1-3 is welded and fixed to the bottom side plate 1-2 and the bottom support plate 1-1, respectively, and a bottom lifting plate 1-10 is welded and fixed between the first bottom vertical plate 1-3 and the bottom support plate 1-1, so as to facilitate the lifting of the bottom bracket 1. The first bottom vertical plate 1-3 and the second bottom vertical plate 1-4 can be split and welded, or they can be made of angle steel. The top surfaces of the first vertical plate 1-3 of the bottom layer and the second vertical plate 1-4 of the bottom layer are flush, the first connecting plate 1-5 is welded and fixed to the top ends of the first vertical plate 1-3 of the bottom layer and the second vertical plate 1-4 of the bottom layer and is located in the angular space surrounded by the two vertical plates, and the top surface of the first connecting plate 1-5 is flush with the top surfaces of the first vertical plate 1-3 of the bottom layer and the second vertical plate 1-4 of the bottom layer.

[0049] like Figure 1 , Figure 3and Figure 5 As shown, the first vertical plate 1-3 of the bottom layer has a protruding portion that protrudes downward from the bottom support plate 1-1, and a bottom plate 1-9 is welded and fixed between the protruding portion and the corresponding bottom side plate 1-2. The bottom plate 1-9 is located below the bottom support plate 1-1, and a shock absorber 4 is installed on the bottom plate 1-9. In order to improve the structural strength, a reinforcing plate is welded and fixed between the bottom plate 1-9 and the corresponding bottom side plate 1-2 and the column. Specifically, the reinforcing plate includes a first reinforcing plate 1-6 welded between the bottom of the first vertical plate 1-3 of the bottom layer and the bottom of the second vertical plate 1-4 of the bottom layer, a second reinforcing plate 1-7 welded between the first reinforcing plate 1-6, the first vertical plate 1-3 of the bottom layer and the bottom plate 1-9, and a third reinforcing plate 1-8 welded between the bottom side plate 1-2 and the bottom plate 1-9.

[0050] like Figure 4 As shown, the shock absorber 4 includes a large washer 4-1, a main ring 4-2, and a secondary ring 4-3. The large washer 4-1 is located on the upper side of the base plate 1-9, the main ring 4-2 is located between the base plate 1-9 and the frame 6, and the secondary ring 4-3 is located on the lower side of the frame 6. The fastener 5 is used to fix the shock absorber 4 on the frame 6, which can reduce the vibration of the vehicle during operation and protect the battery.

[0051] like Figure 1 , Figure 2 , Figure 3 as well as Figure 6 As shown, the support plate of the single-layer bracket 2 is a single-layer support plate 2-1, which is also a rectangular plate, and is provided with weight-reducing heat dissipation holes that penetrate the single-layer support plate 2-1 from top to bottom. The single-layer bracket 2 has four columns and is located at the four corners of the single-layer support plate 2-1. The two L-shaped vertical plates of a single column of the single-layer bracket 2 are a single-layer first vertical plate 2-3 and a single-layer second vertical plate 2-4. The thickness of the single-layer first vertical plate 2-3 extends in the front-to-back direction, and the thickness of the single-layer second vertical plate 2-4 extends in the left-to-right direction. The side plates on the bottom surface of the single-layer support plate 2-1 are single-layer side plates 2-2. The single-layer first vertical plate 2-3 is welded and fixed to the single-layer side plate 2-2 and the single-layer support plate 2-1, and a single-layer lifting plate 2-7 is welded and fixed between the single-layer first vertical plate 2-3 and the single-layer support plate 2-1, so as to facilitate the lifting of the single-layer bracket 2.

[0052] The single-layer first vertical plate 2-3 and the single-layer second vertical plate 2-4 can be split and welded, or they can be made of angle steel. The top surfaces of the single-layer first vertical plate 2-3 and the single-layer second vertical plate 2-4 are flush, and the second connecting plate 2-5 is welded and fixed to the top ends of the single-layer first vertical plate 2-3 and the single-layer second vertical plate 2-4 and is located in the angular space surrounded by the two vertical plates, and the top surface of the second connecting plate 2-5 is flush with the top surfaces of the single-layer first vertical plate 2-3 and the single-layer second vertical plate 2-4.

[0053] At the same time, the lengths of the single-layer first vertical plate 2-3 and the single-layer second vertical plate 2-4 are not equal. The length of the single-layer first vertical plate 2-3 is large, forming a long vertical plate, and the length of the single-layer second vertical plate 2-4 is small, forming a short vertical plate. The bottom end of the single-layer second vertical plate 2-4 is welded to the top surface of the single-layer support plate 2-1. The bottom end of the single-layer first vertical plate 2-3 on the left side and the single-layer side plate 2-2 on the left side form an angle space, and a third connecting plate 2-6 is welded and fixed between the two. Similarly, the bottom end of the single-layer first vertical plate 2-3 on the right side and the single-layer side plate 2-2 on the right side also form an angle space, and a third connecting plate 2-6 is welded and fixed between the two. The third connecting plate 2-6 is used to install the second bolt 8 to be fixedly connected with the second connecting plate 2-5 of the lower single-layer bracket 2 or with the first connecting plate 1-5 of the bottom bracket 1.

[0054] In this embodiment, the columns of each single-layer bracket 2 and the columns of the bottom bracket 1 correspond to each other vertically, that is, the first vertical plates of each column at each corner are aligned vertically, and the second vertical plates of each column are also aligned vertically. For the bottom bracket 1, the left ends of the two front and rear bottom first vertical plates 1-3 at the left end of the bottom support plate 1-1 are respectively aligned with the two bottom second vertical plates 1-4 at the left end of the bottom support plate 1-1, and the right ends of the two front and rear bottom first vertical plates 1-3 at the right end of the bottom support plate 1-1 extend to the right sides of the two bottom second vertical plates 1-4 at the right end of the bottom support plate 1-1. In this way, the two first connecting plates 1-5 on the left side of the bottom bracket 1 are located inside the frame, and the two first connecting plates 1-5 on the right side are equivalent to being exposed to the outside.

[0055] Similarly, for the single-layer bracket 2, the left ends of the two single-layer first vertical plates 2-3 at the front and rear ends of the left end of the single-layer support plate 2-1 are respectively aligned with the two single-layer second vertical plates 2-4 at the left end of the single-layer support plate 2-1, and the right ends of the two single-layer first vertical plates 2-3 at the front and rear ends of the right end of the single-layer support plate 2-1 extend to the right sides of the two single-layer second vertical plates 2-4 at the right end of the single-layer support plate 2-1. In this way, the two second connecting plates 2-5 and the two third connecting plates 2-6 on the left side of the single-layer bracket 2 are located on the inner side of the frame, and the two second connecting plates 2-5 and the two third connecting plates 2-6 on the right side are equivalent to being exposed to the outside. The above settings align the left side of the entire battery frame, which can reduce space occupancy; the right side is protruding, which is convenient for wiring on this side, convenient for the installation of the bracket, and can shield the line.

[0056] like Figure 1 , Figure 2 and Figure 3As shown, the cover plate 3 includes a top plate 3-1 and four top side plates 3-2 vertically connected to the bottom surface of the top plate 3-1, wherein a fourth connecting plate 3-3 is welded and fixed between the left top side plate 3-2 and the front top side plate 3-2, a fourth connecting plate 3-3 is also welded and fixed between the left top side plate 3-2 and the rear top side plate 3-2, and fourth connecting plates 3-3 are also welded and fixed on the outer surfaces of the front and rear ends of the right top side plate 3-2, that is, there are four fourth connecting plates 3-3 in total, the two fourth connecting plates 3-3 on the left are located on the inner side of the cover plate 3, and correspond to the two second connecting plates 2-5 on the left side of the lower single-layer bracket 2 up and down, and the two fourth connecting plates 3-3 on the right are located on the outer side of the cover plate 3, and correspond to the two second connecting plates 2-5 on the right side of the lower single-layer bracket 2 up and down.

[0057] In summary, the battery frame of the utility model is assembled in a split manner, has a simple and firm structure, is easy to install and disassemble, and can be applied to a variety of electric engineering vehicles, such as electric wet spraying trolleys, electric trucks, electric rock drilling trolleys, etc., and can be used for different models. Universal modular applications can be used to facilitate changing the number of batteries according to design requirements, improve design efficiency, and save costs. In addition, the bottom bracket and the middle single-layer bracket both omit the upper frame, and the columns of the bottom bracket and the single-layer bracket are directly in contact with the upper component support and are fixedly connected by connecting plates and bolts. By eliminating multiple upper frames, the overall height of the battery frame is greatly reduced, and the height occupies a small space, which can adapt to application scenarios with limited space.

[0058] In other embodiments of the battery frame: the left and right sides of the battery frame can be aligned, and the four first connecting plates on the bottom bracket, the four second connecting plates and the four third connecting plates on the single-layer bracket are all located on the inner side of the frame.

[0059] In other embodiments of the battery frame: lifting plates may no longer be provided on the bottom bracket and the single-layer bracket, and the brackets may be transported manually or transferred by a lifting device.

[0060] In other embodiments of the battery frame: for the bottom bracket, the reinforcing plate can be welded and fixed only between the bottom plate and a vertical plate of the column, or only between the bottom plate and a side plate. Of course, in other embodiments, the reinforcing plate may not be welded.

[0061] In other embodiments of the battery frame: when the battery frame is used in other fields, such as fixed buildings, or electrical fields, such as power distribution stations, shock absorbers may not be required because shock absorption is not required.

[0062] In other embodiments of the battery frame: the side plates may no longer be fixed to the bottom surfaces of the bottom bracket and the single-layer bracket, and the third connecting plate of the single-layer bracket is welded and fixed between the two vertical plates of the single-layer bracket column.

[0063] In other embodiments of the battery frame: the support plates of the bottom bracket and the single-layer bracket may no longer be provided with weight-reducing and heat-dissipating holes, but may be a whole solid plate. Of course, the support bottom brackets of the bottom bracket and the single-layer bracket may also be a frame structure.

[0064] In other embodiments of the battery frame: the top surfaces of the first connecting plate and the second connecting plate may also be lower than the top surfaces of the two vertical plates of the corresponding columns.

[0065] In other embodiments of the battery frame: the columns of the bottom bracket and the single-layer bracket may also be tubular components, and in this case, the first connecting plate and the second connecting plate are respectively welded to the top ends of the corresponding tubular components.

[0066] In other embodiments of the battery frame: only the top of the column of the bottom bracket can be directly in contact with the supporting bottom bracket of the upper single-layer bracket, and the fixation with the supporting bottom bracket of the upper single-layer bracket is achieved through the first connecting plate, and each single-layer bracket still includes an upper frame and a lower frame as in the prior art. At this time, the lower frame of the lowest single-layer bracket is fixedly connected to the first connecting plate at the top of the column of the bottom bracket.

[0067] In other embodiments of the battery frame: only the top end of the column of the single-layer bracket can be directly in contact with the supporting base or cover plate of the upper single-layer bracket, and the fixation with the supporting base or cover plate of the upper single-layer bracket is achieved through the second connecting plate, while the bottom bracket is still the same as the prior art, including an upper frame and a lower frame, and at this time the upper frame of the bottom bracket is fixedly connected to the supporting base of the upper single-layer bracket.

[0068] An embodiment of the electric engineering vehicle in the utility model is as follows: the electric engineering vehicle comprises a frame and a battery frame mounted on the frame. The specific structure of the battery frame is the same as the battery frame in the above embodiment and will not be repeated here.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery frame, comprising a bottom bracket, a cover plate and at least one single-layer bracket connected therebetween, wherein the bottom bracket and the single-layer bracket both comprise a supporting base for supporting the battery and a column fixed on the supporting base, characterized in that: The top of the column of the bottom-layer bracket is directly in contact with the supporting base of the upper single-layer bracket, and the top of the column of the bottom-layer bracket is provided with a first connecting plate for installing bolts to be fixedly connected to the supporting base of the upper single-layer bracket, and / or the top of the column of the single-layer bracket is directly in contact with the supporting base or cover of the upper single-layer bracket, and the top of the column of the single-layer bracket is provided with a second connecting plate for installing bolts to be fixedly connected to the supporting base or cover of the upper single-layer bracket.

2. The battery frame according to claim 1, characterized in that: The columns of the bottom bracket and the single-layer bracket both include two L-shaped vertical plates. The first connecting plate and the second connecting plate are respectively welded and fixed to the two vertical plates of the corresponding column and are located in the angular space surrounded by the two vertical plates.

3. The battery frame according to claim 2, characterized in that: The top surfaces of the first connecting plate and the second connecting plate are respectively flush with the top surfaces of the two vertical plates of the corresponding columns.

4. The battery frame according to claim 2 or 3, characterized in that: The supporting base of the single-layer bracket includes a supporting plate, the upper surface of the supporting plate is used to support the battery, and the side plate is vertically fixed on the bottom surface of the supporting plate. The two vertical plates of the column of the single-layer bracket are of different lengths and constitute a long vertical plate and a short vertical plate respectively. The top surfaces of the long vertical plate and the short vertical plate are flush, and the bottom end of the long vertical plate and the corresponding side plate form an angular space, and a third connecting plate for installing bolts to be fixedly connected to the first connecting plate or the second connecting plate is welded and fixed between the two.

5. The battery frame according to any one of claims 1 to 3, characterized in that: The supporting bottom brackets of the bottom bracket and the single-layer bracket both include a supporting plate, and the upper surface of the supporting plate is used to support the battery.

6. The battery frame according to claim 5, characterized in that: The support plate is provided with weight-reducing heat dissipation holes which penetrate the support plate up and down.

7. The battery frame according to claim 5, characterized in that: The support plate is a rectangular plate. The bottom bracket and the single-layer bracket each have four columns located at the four corners of the corresponding support plate. Side plates are vertically fixed to the front, rear, left and right ends of the bottom surface of the support plate of the bottom bracket.

8. The battery frame according to claim 7, characterized in that: The column of the bottom bracket has a protruding part that protrudes downward from the support plate, a bottom plate is welded and fixed between the protruding part and the corresponding side plate, the bottom plate is located below the support plate, and a shock absorber is installed on the bottom plate.

9. The battery frame according to claim 8, characterized in that: A reinforcement plate is welded and fixed between the bottom plate and the corresponding side plates and / or columns.

10. The battery frame according to any one of claims 1 to 3, characterized in that: The bottom bracket and the single-layer bracket each have four columns located at four corners of the corresponding supporting base, and a lifting plate is welded and fixed between each column and the corresponding supporting base.

11. The battery frame according to claim 2 or 3, characterized in that: The bottom bracket and the single-layer bracket have four columns respectively and are located at the four corners of the corresponding supporting base brackets. The columns of each single-layer bracket correspond to the columns of the bottom bracket up and down. The two vertical plates of the columns of the bottom bracket and the single-layer bracket are the first vertical plate and the second vertical plate respectively. The thickness of the first vertical plate extends along the front-to-back direction, and the thickness of the second vertical plate extends along the left-to-right direction. The left ends of the front and rear two first vertical plates at the left end of the supporting base bracket are respectively aligned with the two second vertical plates at the left end of the supporting base bracket, and the right ends of the front and rear two first vertical plates at the right end of the supporting base bracket respectively extend to the right sides of the two second vertical plates at the right end of the supporting base bracket.

12. An electric engineering vehicle, comprising a frame and a battery frame mounted on the frame, characterized in that: The battery frame is the battery frame according to any one of claims 1 to 11.

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