Fully-sealed integral type battery pack box body structure of electric loader

Abstract

The utility model discloses a fully-sealed integral type battery pack box body structure of an electric loader, which comprises a battery box body formed by combining a bottom-layer battery frame, a battery frame base and a front frame body framework, and the bottom-layer battery frame is fixedly connected to the bottom of the battery frame base. A plurality of circular shock absorber assemblies and a plurality of waist-shaped shock absorber assemblies are respectively arranged on the battery frame base and are used for connecting the battery box body with a rear frame of the loading machine, the front frame body framework is fixedly connected to the side wall of the battery frame base, and sealing rubber strips are arranged at the connecting positions of the battery frame base and the bottom-layer battery frame and the connecting positions of the battery frame base and the front frame body framework; at least one sealing plate is detachably arranged on the outer wall of each of the bottom-layer battery frame and the battery frame base; an access door and a wire harness hole are arranged on the outer wall of the front frame body framework, a wire harness sealing sleeve is arranged in the wire harness hole, and a mounting assembly for positioning and mounting a battery assembly is arranged in the battery box body. The battery box of the electric loader can be modularized, and the battery box is attractive in appearance, safe, reliable and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of full-sealed integrated battery pack box structure of electric loader, belong to loader technical field. BACKGROUND

[0002] The mainstream electric loader in current market is mostly semi-sealed open type battery pack structure, under this mode, in the environment of dust condition being bad, the operation of battery pack and other elements and electric control system faces many challenges, when dust accumulated under specific dust condition (such as nickel, iron) forms block, the situation of conduction (short circuit) appears, causes the electric control of electric loader to fail, affects the normal operation of whole machine.

[0003] Part of customers have high-pressure water washing maintenance measures to electric loader, semi-open type battery pack structure cannot effectively protect the wiring harness connector and other elements of electric control system.Long-term water gas can also cause electrical short circuit, possibly cause battery pack performance to sharply drop, battery pack life to shorten, even cause fire or explosion and other safety accidents.Easy to appear electric control failure, affect the normal operation of whole machine.

[0004] Therefore, a full-sealed integrated battery pack box structure should be considered to be applied to electric loader, which can adapt to various dust bad and whole machine washing working condition environment, and a series of measures are taken to ensure the normal operation of battery pack and electric control system of whole machine. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of full-sealed integrated battery pack box structure of electric loader, which can be applied to electric loader and has good platformization promotion value.The box structure can realize the modularization of electric loader, appearance is beautiful, safe, reliable, easy to maintain and maintain requirements.

[0006] To achieve the above technical purposes and effects, the application realizes the following technical solutions:

[0007] A kind of full-sealed integrated battery pack box structure of electric loader, including battery box, the battery box is combined by bottom layer battery frame, battery frame base, front frame skeleton, the bottom layer battery frame is fixedly connected at the bottom of the battery frame base, the side where battery frame base is connected with bottom layer battery frame is provided with connecting plate, connecting plate is respectively provided with a plurality of circular shock absorber assemblies and a plurality of waist type shock absorber assemblies, for the connection of battery box and loader rear frame, the front frame skeleton is connected and fixed on the side wall of battery frame base, and sealing rubber strip is arranged at the connection of battery frame base and bottom layer battery frame, front frame skeleton;

[0008] At least one sealing plate is detachably arranged on the outer wall of the bottom battery frame and the battery frame base, so as to facilitate the maintenance of the battery box; a maintenance door and a wire harness opening are arranged on the outer wall of the front frame skeleton, a wire harness sealing sleeve is arranged in the wire harness opening, and an installation assembly for positioning and installing a battery assembly is arranged in the battery box.

[0009] Preferably, the installation assembly comprises a high-pressure box support, a multi-in-one support, a T-shaped support, a pressing pad, and a jacking bolt component, the high-pressure box support and the multi-in-one support are arranged on the inner wall of the front frame skeleton in an upper and lower interval, and are used for assembling the high-pressure box and the low-pressure box; the T-shaped support is arranged on the inner wall of the battery frame base and is arranged in multiple in an upper and lower interval, the pressing pad is arranged in multiple and is arranged between the top surface of the T-shaped support and the bottom wall of the upper T-shaped support, each battery pack is installed between the upper and lower T-shaped supports, and the jacking bolt component is arranged on the inner wall of the battery frame base and is located on the upper part of the uppermost T-shaped support, and is used for providing a downward pressing force to each T-shaped support.

[0010] Further, the jacking bolt component comprises a jacking bracket, a pressing bolt, and a jacking nut, the jacking bracket is arranged on the inner wall of the battery frame base, the jacking nut is fixedly connected to one side of the jacking bracket facing the T-shaped support, and the pressing bolt is arranged through the jacking bracket and is screwed with the jacking nut.

[0011] Further, one of the sealing plates is detachably arranged on the left and right sides of each T-shaped support.

[0012] Preferably, the circular shock absorber assembly comprises a buffer main ring, a buffer auxiliary ring, a rebound washer, a connecting bolt one, and a connecting nut one, the buffer main ring has a circular connecting part for plug-in cooperation with the rear frame of the loader and a circular buffer part for clamping between the connecting plate and the rear frame, the diameter of the circular buffer part is greater than that of the circular connecting part, the buffer auxiliary ring is arranged on the side wall of the rear frame away from the connecting plate, the rebound washer is arranged on the side of the buffer auxiliary ring away from the side wall of the rear frame, and the connecting bolt one is arranged through the connecting plate, the buffer main ring, the buffer auxiliary ring, and the rebound washer in sequence and is screwed with the connecting nut one.

[0013] Further, the circular connecting part of the buffer main ring is in abutment with the buffer auxiliary ring, a chamfer is arranged at the abutment end of the circular connecting part, and a ring groove is arranged on the buffer auxiliary ring and is matched with the chamfer.

[0014] Preferably, the waist type shock absorber assembly includes a waist type bumper, a core shaft, a rebound pad, two connecting bolts and two connecting nuts, the waist type bumper is provided with two and symmetrically arranged on both sides of the connecting plate, the core shaft is provided with two and coaxially arranged at both ends of the two waist type bumpers, the rebound pad is arranged on the side of the upper waist type bumper away from the connecting plate, the lower waist type bumper is arranged between the connecting plate and the rear frame side wall of the loader, the connecting bolt is sequentially arranged through the rebound pad, the core shaft, the connecting plate and the rear frame and is screwed with the connecting nut two.

[0015] Preferably, the sealing strip is a single skin hard sponge sealing pad.

[0016] Preferably, the bottom layer battery frame, the battery frame base and the front frame skeleton are welded structural members.

[0017] The full-sealed integrated battery pack box structure of the electric loader has the following advantages:

[0018] 1. The full-sealed integrated battery pack box structure of the electric loader can realize modular production and assembly of the battery box, improves production efficiency, and at the same time, the battery box is integrally sealed, can adapt to various dust harsh and whole machine washing working conditions, and reduces the possibility of battery pack circuit and electric control failure caused by dust agglomeration or washing water gas accumulation.

[0019] 2. The full-sealed integrated battery pack box structure of the electric loader is integrally connected with the rear frame of the loader through the circular shock absorber assembly and the waist type shock absorber assembly, and can realize reduction of secondary impact of elements caused by vibration impact of the battery pack box during whole machine operation.

[0020] 3. The full-sealed integrated battery pack box structure of the electric loader can realize easy maintenance and safety of the battery pack box through the setting of the plurality of detachable sealing plates and the maintenance door on the front frame skeleton. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the full-sealed integrated battery pack box structure of the electric loader;

[0022] Figure 2 It is an internal structure schematic view of the full-sealed integrated battery pack box structure of the electric loader;

[0023] Figure 3 It is an installation structure schematic view of the circular shock absorber assembly provided by the utility model;

[0024] Figure 4 It is an installation structure schematic view of the waist type shock absorber assembly provided by the utility model;

[0025] In the figure:

[0026] 1 - bottom layer battery frame; 2 - battery frame base; 21 - connecting plate; 3 - front frame skeleton; 31 - wiring harness opening; 4 - circular shock absorber assembly; 41 - buffer main ring; 411 - circular connecting part; 412 - circular buffer part; 42 - buffer auxiliary ring; 43 - rebound washer; 44 - connecting bolt I; 45 - connecting nut I; 5 - waist-shaped shock absorber assembly; 51 - waist-shaped buffer; 52 - mandrel; 53 - rebound pad; 54 - connecting bolt II; 55 - connecting nut II; 6 - sealing rubber strip; 7 - sealing plate; 8 - maintenance door; 9 - mounting assembly; 91 - high-pressure box support; 92 - all-in-one support; 93 - T-shaped support; 94 - pressing pad; 95 - jacking bolt part; 951 - jacking frame; 952 - pressing bolt; 953 - jacking nut; 10 - wiring harness sealing sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Referring to Figures 1-4 A fully-sealed integrated battery pack box structure of an electric loader, comprising a battery box, the battery box is composed of a bottom layer battery frame 1, a battery frame base 2 and a front frame skeleton 3, the bottom layer battery frame 1, the battery frame base 2 and the front frame skeleton 3 are all welded structural parts, the bottom layer battery frame 1 is fixedly connected to the bottom of the battery frame base 2 through bolts, a connecting plate 21 is integrally formed on one side of the battery frame base 2 connected with the bottom layer battery frame 1, a plurality of circular shock absorber assemblies 4 and a plurality of waist-shaped shock absorber assemblies 5 are respectively installed on the connecting plate 21, which are used for connecting the battery box with the rear frame of the loader and simultaneously damping, so as to reduce the vibration impact of the whole machine operation shaking on the electrical components; the front frame skeleton 3 is fixedly connected to the side wall of the battery frame base 2 through bolts, and the battery frame base 2 is provided with a sealing rubber strip 6 at the connection with the bottom layer battery frame 1 and the front frame skeleton 3, the sealing rubber strip 6 is preferably a single-skin hard sponge sealing pad, which is used for ensuring the sealing of the whole battery box and avoiding the entry of dust and washing water vapor;

[0029] Referring to Figure 1 and Figure 2, the bottom layer battery frame 1 and the outer wall of the battery frame base 2 are detachably installed with at least one sealing plate 7 through bolts, so as to facilitate the maintenance of the battery box and the battery pack; the outer wall of the front frame skeleton 3 is provided with an access door 8 and a wire harness opening 31, the access door 8 facilitates the maintenance of the electrical components in the front frame hanger, and the wire harness opening 31 is used for connecting the wire harness. The wire harness opening 31 is provided with a wire harness sealing sleeve 10 to further improve the sealing performance of the battery box as a whole. At the same time, if there are other openings on the battery box for facilitating assembly operation, sealing sleeves, rubber strips, covers and other sealing elements are also assembled, which will not be described in detail.

[0030] Referring to Figure 2 , the battery box is provided with an installation assembly 9 for positioning and installing the battery assembly, the installation assembly 9 comprises a high-voltage box support 91, a multi-in-one support 92, a T-shaped support 93, a pressing pad 94 and a jacking bolt component 95, the high-voltage box support 91 and the multi-in-one support 92 are arranged in an upper and lower interval and are welded and fixed on the inner wall of the front frame skeleton 3, and are used for assembling the high-voltage box and the low-voltage box; the T-shaped support 93 is fixedly installed on the inner wall of the battery frame base 2 and is arranged in an upper and lower interval, and a plurality of T-shaped supports 93 are arranged; the pressing pad 94 is fixedly installed by bolts and is arranged between the top surface of the T-shaped support 93 and the bottom wall of the upper T-shaped support 93, each battery pack is installed between the upper and lower two T-shaped supports 93, and the jacking bolt component 95 is installed on the inner wall of the battery frame base 2 and is located on the upper part of the uppermost T-shaped support 93, which is used for providing downward pressing force to each T-shaped support 93, thereby ensuring the stable installation of each battery pack. In this embodiment, three T-shaped supports 93 are installed, and two pressing pads 94 are installed.

[0031] The jacking bolt component 95 comprises a jacking bracket 951, a pressing bolt 952 and a jacking nut 953, the jacking bracket 951 is welded and fixed on the inner wall of the battery frame base 2, the jacking nut 953 is welded and fixed on the side wall of the jacking bracket 951 facing the T-shaped support 93, and the pressing bolt 952 penetrates the jacking bracket 951 and is screwed with the jacking nut 953, so that the jacking of the battery assembly can be realized by screwing the pressing bolt 952, which not only ensures the smooth assembly process of each battery pack, but also ensures the vertical jacking structure, avoids the up-and-down movement of the battery pack on the whole machine, and further ensures the stable and reliable installation of the battery pack.

[0032] Each T-shaped support 93 is detachably installed with one sealing plate 7 on the left and right sides, which further improves the convenience of maintaining the battery box and the battery assembly.

[0033] Referring to Figure 1 and Figure 3, the circular shock absorber assembly 4 comprises a buffer main ring 41, a buffer auxiliary ring 42, a rebound washer 43, a connecting bolt one 44 and a connecting nut one 45, the buffer main ring 41 has a circular connecting part 411 matched with the loader rear frame and a circular buffer part 412 clamped between the connecting plate 21 and the rear frame, the diameter of the circular buffer part 412 is larger than that of the circular connecting part 411, the buffer auxiliary ring 42 is installed on the side wall of the rear frame away from the connecting plate 21, the rebound washer 43 is installed on the side of the buffer auxiliary ring 42 away from the rear frame, and the connecting bolt one 44 is sequentially arranged through the connecting plate 21, the buffer main ring 41, the buffer auxiliary ring 42 and the rebound washer 43 and is screwed with the connecting nut one 45.

[0034] The circular connecting part 411 of the buffer main ring 41 is in abutment with the buffer auxiliary ring 42, a chamfer is arranged at the abutment end of the circular connecting part 411, and a ring groove matched with the chamfer is arranged on the buffer auxiliary ring 42, so that the buffering performance of the circular shock absorber is further improved.

[0035] Referring to Figure 1 and Figure 4 , the waist-shaped shock absorber assembly 5 comprises a waist-shaped buffer 51, a mandrel 52, a rebound pad 53, a connecting bolt two 54 and a connecting nut two 55, the waist-shaped buffer 51 is installed with two and symmetrically arranged on both sides of the connecting plate 21, the mandrel 52 is installed with two and coaxially arranged through both ends of the two waist-shaped buffers 51, the rebound pad 53 is installed on the side of the upper waist-shaped buffer 51 away from the connecting plate 21, the lower waist-shaped buffer 51 is pressed between the connecting plate 21 and the side wall of the loader rear frame, the connecting bolt is sequentially arranged through the rebound pad 53, the mandrel 52, the connecting plate 21 and the rear frame and is screwed with the connecting nut two 55, in the embodiment, the battery box is preferably a square box, and the waist-shaped shock absorber assembly is preferably installed at the corner of the connecting plate 21.

[0036] The above is only a preferred embodiment of the present application, and is not any form and substantial limitation of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and supplements can be made without departing from the present application, and these improvements and supplements should be regarded as the protection range of the present application. For those skilled in the art, some changes, modifications and equivalent changes made by using the disclosed technical content without departing from the spirit and scope of the present application are equivalent embodiments of the present application; meanwhile, any equivalent change, modification and evolution of the above-mentioned embodiments according to the essential technology of the present application are still within the range of the technical solutions of the present application.

Claims

1. A fully sealed, monolithic battery pack box structure for an electric loader, comprising a battery box, characterized in that, The battery box is composed of a bottom battery frame (1), a battery frame base (2) and a front frame skeleton (3), the bottom battery frame (1) is fixedly connected to the bottom of the battery frame base (2), the side of the battery frame base (2) connected with the bottom battery frame (1) is provided with a connecting plate (21), a plurality of circular shock absorber assemblies (4) and a plurality of waist-shaped shock absorber assemblies (5) are arranged on the connecting plate (21) respectively, which are used for connecting the battery box with the loader rear frame, the front frame skeleton (3) is fixedly connected to the side wall of the battery frame base (2), and the connecting parts of the battery frame base (2) with the bottom battery frame (1) and the front frame skeleton (3) are all provided with sealing rubber strips (6). At least one sealing plate (7) is detachably arranged on the outer wall of the bottom battery frame (1) and the battery frame base (2), so as to facilitate the maintenance of the battery box; a maintenance door (8) and a wire harness opening (31) are arranged on the outer wall of the front frame skeleton (3), the wire harness opening (31) is provided with a wire harness sealing sleeve (10), and the battery box is provided with an installation assembly (9) for positioning and installing a battery assembly.

2. A fully sealed, monolithic battery pack housing structure for an electric drive loader as set forth in claim 1, characterized in that, The installation assembly (9) comprises a high-voltage box support (91), a multi-in-one support (92), a T-shaped support (93), a pressing pad (94) and a jacking bolt part (95), the high-voltage box support (91) and the multi-in-one support (92) are arranged on the inner wall of the front frame skeleton (3) in an upper and lower interval, and are used for assembling high-voltage boxes and low-voltage boxes; the T-shaped supports (93) are arranged on the inner wall of the battery frame base (2) and are arranged in an upper and lower interval, the pressing pads (94) are arranged in a plurality of and are arranged between the top surface of the T-shaped supports (93) and the bottom wall of the upper T-shaped supports (93), each battery pack is arranged between the upper and lower two T-shaped supports (93), and the jacking bolt part (95) is arranged on the inner wall of the battery frame base (2) and is located on the upper part of the uppermost T-shaped support (93), and is used for providing downward pressing force to the T-shaped supports (93).

3. A totally enclosed, unitized battery box structure for an electric drive loader as set forth in Claim 2, wherein, The jacking bolt part (95) comprises a jacking frame (951), a pressing bolt (952) and a jacking nut (953), the jacking frame (951) is arranged on the inner wall of the battery frame base (2), the jacking nut (953) is fixedly connected to the side of the jacking frame (951) facing the T-shaped support (93), and the pressing bolt (952) penetrates the jacking frame (951) and is screwed with the jacking nut (953).

4. A totally enclosed, unitized battery box structure for an electric drive loader as set forth in Claim 2, wherein, One of the sealing plates (7) is detachably arranged on the left and right sides of each T-shaped support (93).

5. A totally enclosed, unitized battery box structure for an electric drive loader as defined in claim 1 wherein, The circular shock absorber assembly (4) comprises a buffer main ring (41), a buffer auxiliary ring (42), a rebound washer (43), a connecting bolt I (44) and a connecting nut I (45), the buffer main ring (41) has a circular connecting part (411) matched with the loader rear frame and a circular buffer part (412) clamped between the connecting plate (21) and the rear frame, the diameter of the circular buffer part (412) is larger than that of the circular connecting part (411), the buffer auxiliary ring (42) is arranged on the side wall of the rear frame away from the connecting plate (21), the rebound washer (43) is arranged on the side of the buffer auxiliary ring (42) away from the rear frame side wall, the connecting bolt I (44) is sequentially arranged in the connecting plate (21), the buffer main ring (41), the buffer auxiliary ring (42) and the rebound washer (43) and is screwed with the connecting nut I (45).

6. A totally enclosed, unitized battery pack housing structure for an electric drive loader as set forth in Claim 5, wherein, The circular connecting part (411) of the buffer main ring (41) abuts against the buffer auxiliary ring (42), the abutting end of the circular connecting part (411) is provided with a chamfer, and the buffer auxiliary ring (42) is provided with a ring groove matched with the chamfer.

7. A totally enclosed, unitized battery pack housing structure for an electric drive loader as set forth in Claim 1, wherein, The waist-shaped shock absorber assembly (5) comprises a waist-shaped buffer (51), a mandrel (52), a rebound pad (53), a connecting bolt II (54) and a connecting nut II (55), the waist-shaped buffer (51) is provided with two and symmetrically arranged on both sides of the connecting plate (21), the mandrel (52) is provided with two and coaxially arranged at both ends of the two waist-shaped buffers (51), the rebound pad (53) is arranged on the side of the upper waist-shaped buffer (51) away from the connecting plate (21), and the lower waist-shaped buffer (51) is pressed between the connecting plate (21) and the side wall of the loader rear frame, the connecting bolt is sequentially arranged in the rebound pad (53), the mandrel (52), the connecting plate (21) and the rear frame and is screwed with the connecting nut II (55).

8. A totally enclosed, unitized battery pack housing structure for an electric drive loader as set forth in Claim 1, wherein, The sealing rubber strip (6) is a single skin hard sponge sealing pad.

9. A totally enclosed monolithic battery pack housing structure for an electric drive loader as set forth in claim 1, wherein, The bottom battery frame (1), the battery frame base (2) and the front frame body skeleton (3) are all welded structural parts.

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