Battery circuit structure for power battery of hybrid loader
By employing a frame and pipe structure in the hybrid loader for the sealing design of the battery circuit, the safety and waterproof/dustproof issues at the connection between the battery box and the high-voltage box are resolved, achieving reasonable wiring routing and good sealing performance.
Patent Information
- Application Number
- CN202520259337.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The high-voltage cables at the connection between the battery box and the high-voltage box of the existing hybrid loader's power battery are exposed, posing a safety issue and resulting in poor waterproofing and dustproofing.
The battery circuit is sealed using a frame and pipe structure. A three-layer frame and a three-section rubber bending pipe are used to fix and protect the circuit, achieving waterproof and dustproof effects.
This design achieves reasonable wiring and good sealing performance for the battery circuitry, improving safety and waterproof/dustproof capabilities.
Smart Images

Figure CN223720821U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery wiring technology, and in particular to a battery wiring structure for a hybrid loader power battery. Background Technology
[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.
[0003] Currently, most hybrid loaders on the market use power batteries for energy storage. Power batteries for hybrid loaders are common equipment in industrial production. There are high-voltage lines connecting the battery box and the high-voltage box. In the current battery layout scheme, the high-voltage cables are exposed, which is unsafe and unsightly. They are also easily affected by water, dust, rats, corrosive substances, etc., and have poor waterproof and dustproof properties, posing serious safety problems. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology. The overall battery wiring is sealed through the frame and pipes, which has a good waterproof and dustproof effect. It provides a battery wiring structure with reasonable wiring and good safety and sealing performance.
[0005] A battery circuit structure for a power battery in a hybrid loader includes a frame, pipes, a high-voltage box, and a battery box. The frame has a three-layer structure. The high-voltage box is located on the leftmost side of the upper layer of the frame. Cable ties with seats are provided on the side walls of the middle layer of the frame. The battery box is located on the lower right side of the frame. The frame is connected to the battery box through pipes.
[0006] The high-voltage box has a first line and a second line connected to its left side. The first line is located in front of the second line. The first line and the second line are parallel to each other and have the same line direction within the frame. The first line passes through a cable tie and a pipe to connect to the battery box. The high-voltage box has a third line and a fourth line connected to its right side. The third line is located in front of the fourth line. The third line and the fourth line are parallel to each other and have the same line direction within the frame. The third line passes through a cable tie and a pipe to connect to the battery box.
[0007] The present invention has the following beneficial effects from one or more of the above technical solutions:
[0008] 1. The overall battery wiring is sealed through the frame and pipes, providing good waterproof and dustproof performance, and the wiring is reasonably routed.
[0009] 2. The pipeline adopts a three-section structure. The first and second rubber bend pipes are both installed on corresponding bases. The size of the bases can be adjusted according to the installation size and position of the frame.
[0010] The advantages of the additional aspects of the present utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF DRAWINGS
[0011] The drawings accompanying the specification of this utility model form a part thereof, serve to provide further understanding of the utility model, and together with the description of the illustrative embodiments of the utility model and its description serve to explain the utility model, and do not constitute improper limitations on the utility model.
[0012] Figure 1 It is the overall structure front view of battery circuit of the present utility model;
[0013] Figure 2 It is the left view of battery circuit overall structure of the present utility model;
[0014] Figure 3 It is the main view of line at high pressure box of the present utility model;
[0015] Figure 4 It is the left view of line at high pressure box of the present utility model;
[0016] Figure 5 It is the internal structure schematic diagram of high pressure box of the present utility model;
[0017] Figure 6 It is the schematic diagram of pipeline structure of the present utility model;
[0018] In the drawing: 1 frame, 2 pipeline, 3 high pressure box, 4 battery box, 5 frame upper layer, 6 frame middle layer, 7 take seat tie, 8 first line, 9 second line, 10 third line, 11 fourth line, 12 battery communication interface, 13 battery heating interface, 14 high pressure box bonding wire, 15 high voltage line positive connection, 16 high voltage line negative connection, 17 manual maintenance switch, 18 high pressure box output interface, 19 first take seat tie, 20 second take seat tie, 21 third take seat tie, 22 fourth take seat tie, 23 frame lower layer, 24 fixed plate, 25 first rubber curved pipeline, 26 inclined wire passing pipeline, 27 second rubber curved pipeline, 28 first base, 29 second base, 30 support, 31 wire hole. DETAILED DESCRIPTION
[0019] It should be pointed out that the following detailed description is exemplary, and aims to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in this paper have the same meaning as that generally understood by ordinary skilled in the art to which the present utility model belongs.
[0020] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0021] As Figures 1 to 6 The present embodiment provides a battery circuit structure for a hybrid loader power battery, which comprises a frame 1, a pipe 2, a high-voltage box 3 and a battery box 4. The frame 1 has upper, middle and lower three-layer structures. The leftmost side of the upper layer 5 of the frame is provided with the high-voltage box 3. The sidewall of the middle layer 6 of the frame is provided with a seat ribbon 7. The battery box 4 is located at the lower right of the frame 1. The frame is connected with the battery box 4 through the pipe 2.
[0022] The left side of the high-voltage box is connected with a first circuit 8 and a second circuit 9. The first circuit 8 is located in front of the second circuit 9. The first circuit and the second circuit are distributed in parallel in front of and behind the frame 1 and have the same circuit trend in the frame 1. The first circuit 8 is connected with the battery box after passing through the seat ribbon 7 and the pipe 2. The right side of the high-voltage box is communicated with a third circuit 10 and a fourth circuit 11. The third circuit 10 is located in front of the fourth circuit 11. The third circuit 10 and the fourth circuit 11 are distributed in parallel in front of and behind the frame and have the same circuit trend in the frame. The third circuit is connected with the battery box after passing through the seat ribbon and the pipe.
[0023] The high-voltage box selects a rectangular box body. The left side plate of the high-voltage box is provided with a battery communication interface 12 and a battery heating interface 13. The bottom of the left side plate is connected with a high-voltage box grounding wire 14 for grounding the shell of the high-voltage box. In order to ensure safety and reduce electromagnetic interference, the grounding of the shell of the high-voltage box can prevent high-voltage leakage to the vehicle body and avoid the risk of electric shock. The right side plate of the high-voltage box is provided with a high-voltage line positive connection 15 and a high-voltage line negative connection 16.
[0024] Specifically, the first circuit 8 is connected with the battery communication interface 12, which is equivalent to the battery communication line. The function of the battery communication line is to transmit the state information and control signals of the battery. It is used for detecting and collecting the information of the battery pack, current voltage and temperature in the battery box, to ensure the safe and efficient operation of the battery. The second circuit 9 is connected with the battery heating interface 13, which has the function of the battery heating line. In the present embodiment, the second circuit is used to heat the battery in the battery box, to ensure that the battery can work at a suitable temperature and exert maximum power. The third circuit 10 is connected with the high-voltage line positive connection 15, and the fourth circuit 11 is connected with the high-voltage line negative connection 16. The third circuit 10 and the fourth circuit 11 play the role of zero line and fire line.
[0025] The upper side of the front side plate of the high-voltage box is provided with a manual maintenance switch 17, i.e., MSD. The main function of the MSD is to protect the safety of the technicians who maintain the electric vehicle in the high-voltage environment or to deal with unexpected events. The MSD can quickly disconnect the connection of the high-voltage circuit, so that the maintenance work is in a relatively safe state. When an unexpected situation occurs, the relevant technicians can manually cut off the power. The left side of the manual maintenance switch 17 on the front side plate is provided with a high-voltage box output interface 18, which can supply power to the entire vehicle.
[0026] The seat ribbon 7 includes a first seat ribbon 19, a second seat ribbon 20, a third seat ribbon 21, and a fourth seat ribbon 22. The first seat ribbon 19 is located below the battery box and close to the lower layer 23 of the frame. The second seat ribbon 20 is located to the right of the first seat ribbon 19 and is horizontally distributed with the first seat ribbon. The third seat ribbon 21 and the fourth seat ribbon 22 are both located below the right side of the second seat ribbon 20 and close to the rightmost bottom frame of the middle layer 6 of the frame. The third seat ribbon is located in front of the fourth seat ribbon, and the third seat ribbon and the fourth seat ribbon are distributed in parallel in front and back. The seat ribbon 7 arranged in the middle layer 6 of the frame is used in cooperation with the ribbon to fix and organize the wire and cable lines. When the corresponding lines pass through the seat ribbon, the lines are bundled and fixed on the seat ribbon with the help of the ribbon.
[0027] The battery communication interface 12 and the battery heating interface 13 are both located above the first seat ribbon 19. The high-voltage line positive connection port 15 and the high-voltage line negative connection port 16 are both located above the third seat ribbon 21. Since the first line and the second line have the same wiring path in the frame in the embodiment, the third line and the fourth line have the same wiring path in the frame, and the positions of the first line and the second line are always distributed in front and back during the wiring process, and the positions of the third line and the fourth line are always distributed in front and back. Therefore, only the wiring path of the first line and the third line is described in this text.
[0028] The first line vertically downward from the battery communication interface passes through the upper layer of the frame until it reaches the left side of the first seat ribbon. It makes a right vertical corner at the first seat ribbon, and then it passes through the first seat ribbon and the second seat ribbon in the horizontal direction. When the first line passes through the first seat ribbon and the second seat ribbon, it is fixed in position with the help of the ribbon. When the first line reaches the rightmost frame of the middle layer of the frame, it vertically downward passes through the third seat ribbon and enters the pipe at the lower layer of the frame. After passing through the pipe, it is connected to the battery box. The third line vertically downward from the high-voltage line positive connection port passes through the fourth seat ribbon at the lower layer of the frame and enters the pipe together with the first line. After passing through the pipe, it is connected to the battery box.
[0029] The bottom of the first seat ribbon 19 is connected with a fixed plate 24, the fixed plate 24 is a fixed point extended from the frame for fixing the ribbon, the cooperation of the fixed plate and the bottom seat ribbon can realize the fixation of the target line.
[0030] In order to better realize the waterproof and dustproof effect of the line, the pipeline in the embodiment adopts a three-section structure, which includes a first rubber curved pipeline 25, an inclined pipeline 26 and a second rubber curved pipeline 27, one end of the inclined pipeline 26 is connected with the first rubber curved pipeline 25, and the other end is connected with the second rubber curved pipeline 27, one end of the first rubber curved pipeline away from the inclined straight section is fixed on the side frame on the right side of the lower layer of the frame, and the other end of the second rubber curved pipeline away from the inclined straight section is connected with the battery box.
[0031] In order to better realize the fixation of the positions of the pipeline, the frame and the battery box, the first base 28 is arranged between the first rubber curved pipeline and the lower layer of the frame, and the second base 29 is arranged between the second rubber curved pipeline and the battery box, the second base has the same structure as the first base, and both adopt a rectangular structure, each of the four rectangular corners of the first base 28 and the second base 29 is provided with a bolt hole, the pipeline can be fixed on the frame and the battery box through the cooperation of the bolt and the bolt hole, in addition, the inclined pipeline is further provided with a support 30, the support 30 is approximately L-shaped, one end of the support 30 is fixed on the pipeline, and the other end of the support away from the pipeline is provided with a plurality of bolt holes, so that the position of the pipeline can be fixed through the support.
[0032] The uppermost end of the left side plate of the battery box 4 is provided with a wire hole 31, the communication line, the positive high-voltage line, the negative high-voltage line and the battery heating line all enter the battery box 4 through the wire hole 31.
[0033] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by the skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.
Claims
1. A battery line structure for a hybrid loader power battery, characterized by, The frame is selected from a three-layer structure, a high-pressure box is arranged at the left side of the upper layer of the frame, a seat strap is arranged on the side wall of the middle layer of the frame, a battery box is arranged at the lower right of the frame, and the frame is connected with the battery box through a pipeline. The first line is located in front of the second line, the first line and the second line are distributed in parallel and have the same line trend in the frame, the first line passes through the seat strap and the pipeline and is connected with the battery box, the third line is located in front of the fourth line, the third line and the fourth line are distributed in parallel and have the same line trend in the frame, and the third line passes through the seat strap and the pipeline and is connected with the battery box.
2. A battery line arrangement for a hybrid loader power battery as claimed in claim 1, characterized in that The first seat strap is arranged below the battery box and close to the lower layer of the frame, the second seat strap is arranged at the right of the first seat strap and is horizontally distributed with the first seat strap, the third seat strap and the fourth seat strap are arranged below the second seat strap and close to the right bottom frame edge of the middle layer, the third seat strap is located in front of the fourth seat strap, and the third seat strap and the fourth seat strap are distributed in parallel.
3. A battery line arrangement for a hybrid loader power battery as claimed in claim 2, characterised in that, The bottom of the first seat strap is connected with a fixing plate.
4. A battery circuit arrangement for a hybrid loader power battery as claimed in claim 1, characterized in that The left side plate of the high-pressure box is provided with a battery communication interface and a battery heating interface, and the right side plate of the high-pressure box is provided with a high-voltage line positive connection port and a high-voltage line negative connection port.
5. A battery line arrangement for a hybrid loader power battery as claimed in claim 1, characterized in that The first line is connected with the battery communication interface, the second line is connected with the battery heating interface, the third line is connected with the high-voltage line positive connection port, and the fourth line is connected with the high-voltage line negative connection port.
6. A battery line arrangement for a hybrid loader power battery as claimed in claim 4, characterised in that, The battery communication interface and the battery heating interface are located above the first seat strap, and the high-voltage line positive connection port and the high-voltage line negative connection port are located above the third seat strap.
7. A battery line arrangement for a hybrid loader power battery as claimed in claim 1, characterized in that The pipeline adopts a three-section structure and comprises a first rubber curved pipeline, an inclined wire passing pipeline and a second rubber curved pipeline, one end of the inclined wire passing pipeline is connected with the first rubber curved pipeline, the other end is connected with the second rubber curved pipeline, one end of the first rubber curved pipeline away from the inclined straight section is fixed on the side frame at the right side of the lower layer of the frame, and one end of the second rubber curved pipeline away from the inclined straight section is connected with the battery box.
8. A battery line arrangement for a hybrid loader power battery as claimed in claim 7, characterized in that The first base is arranged between the first rubber curved pipeline and the lower layer of the frame, and the second base is arranged between the second rubber curved pipeline and the battery box.
9. A battery line arrangement for a hybrid loader power battery as claimed in claim 7, characterized in that The second base has the same structure as the first base and adopts a rectangular structure.
10. A battery circuit arrangement for a hybrid loader power battery as claimed in claim 7, characterized in that The inclined wire passing pipeline is provided with a support.