Battery protection shell of electric tire crane
By designing a protective shell for the battery of an electric tire crane, the problem of collisions in the blind spot behind the battery integration was solved, achieving safe protection and layout coordination of the battery, and maintaining vehicle performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN PORT HOLDINGS
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
In traditional tire cranes, the battery is integrated at the rear of the machine, creating a blind spot that is prone to collision damage due to improper operation, and the layout also presents challenges.
Design a battery protective shell for an electric tire crane, including symmetrically arranged left and right battery protection units, a U-shaped outer plate and back plate to protect the battery, and equipped with a wiring harness plate, cooling pipes, observation window and fire extinguishing device to enhance battery safety and visibility.
It achieves battery safety protection, avoids collision damage, maintains vehicle performance without affecting it, and can also be used as a counterweight to ensure overall layout harmony.
Smart Images

Figure CN224264183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tire crane structure, specifically to a battery protective shell for an electric tire crane. Background Technology
[0002] With the global energy structure transformation, the construction machinery industry is accelerating its shift towards new energy technologies. Replacing the traditional fuel-powered systems of tire cranes with high-capacity batteries has become an important development direction for the industry.
[0003] However, the high power requirements unique to construction machinery lead to a significant increase in the size of the power battery, posing a serious challenge to the overall machine layout. Existing technologies attempt to integrate the battery into the rear counterweight area of the machine. This solution can reduce the manufacturing cost of setting up a separate counterweight, but it introduces new technical problems: during equipment rotation or movement, the rear battery area becomes a blind spot, easily leading to collisions due to improper operation, resulting in irreversible damage to the battery. Utility Model Content
[0004] In view of the technical problems mentioned in the background art above, the purpose of this utility model is to provide a battery protective shell for an electric tire crane.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0006] A battery protective shell for an electric tire crane includes a left battery protection unit and a right battery protection unit, which are symmetrically arranged and installed on both sides of the rear end of the electric tire crane to protect the battery. The left battery protection unit includes an upper cover plate, an outer plate, and a back plate. The outer plate includes a front side plate, a left side plate, and a right side plate connected in sequence in a U-shape. The two sides of the back plate are connected to the left side plate and the right side plate, respectively. The lower end of the upper cover plate is connected to the upper end of the outer plate and the back plate. The upper cover plate, the outer plate, and the back plate form a cylindrical structure with an open lower end. The battery on the left side is covered inside the cylindrical structure.
[0007] The back panel has a battery insertion port at its lower end and a wire harness port at its upper end. A wire harness plate is installed on the outside of the wire harness port, and the wire harness plate has multiple combing and limiting holes for the wire harness and cooling pipes to pass through.
[0008] The wire harness plate has an outer fixing plate connected to its outer side by connecting screws. The fixing screws pass through the outer fixing plate and the wire harness plate in sequence and are then connected to the back plate.
[0009] The lower inner side of the cylindrical structure is provided with a bottom reinforcing plate for protecting the battery.
[0010] The outer plate is provided with an observation port, and a transparent observation window is connected to the outside of the observation port.
[0011] The lower end of the outer plate is provided with a taillight hole, from which the crane's taillight protrudes.
[0012] A fire extinguishing device is installed inside the battery protective casing.
[0013] The fire extinguishing device includes a 1kg ultrafine dry powder fire extinguisher.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The solution proposed in this application can ensure the overall layout coordination of the vehicle, protect the battery from collisions, and also serve as a counterweight, thus ensuring that the overall performance of the vehicle is not affected. Attached Figure Description
[0016] Figure 1 This is a side view of the battery protective shell mounting structure provided in an embodiment of this application;
[0017] In the diagram, the left battery protection unit is 1;
[0018] Figure 2 This is a top view of the battery protective shell mounting structure provided in an embodiment of this application;
[0019] In the diagram, the left battery protection unit is 1, and the right battery protection unit is 2.
[0020] Figure 3 This is a first schematic diagram of the structure of the battery protective shell provided in the embodiments of this application;
[0021] In the diagram, the upper cover plate is 101, the outer plate is 102, and the taillight hole is 103;
[0022] Figure 4 This is a second schematic diagram of the structure of the battery protective shell provided in the embodiments of this application;
[0023] In the diagram, backplate 104 and wiring harness board 105 are shown.
[0024] Figure 5 This is a schematic diagram of the structure of the external fixing plate provided in the embodiments of this application;
[0025] In the diagram, the external fixing plate is 106;
[0026] Figure 6 This is a third schematic diagram of the structure of the battery protective shell provided in the embodiments of this application;
[0027] In the diagram, observation window 107 and bottom reinforcing plate 108 are shown.
[0028] Figure 7 This is a fourth schematic diagram of the structure of the battery protective shell provided in the embodiments of this application;
[0029] The fire extinguishing device 109 is shown in the picture. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0033] Please see Figures 1-7 The diagram shows the structure of an embodiment provided by this utility model.
[0034] This embodiment provides a battery protective shell for an electric tire crane, including a left battery protection unit 1 and a right battery protection unit 2, which are symmetrically arranged and installed on both sides of the rear end of the electric tire crane to protect the battery. The left battery protection unit 1 includes an upper cover plate 101, an outer plate 102, and a back plate 104. The outer plate 102 includes a front side plate, a left side plate, and a right side plate connected in sequence in a U-shape. The two sides of the back plate 104 are connected to the left side plate and the right side plate, respectively. The lower end of the upper cover plate 101 is connected to the upper end of the outer plate 102 and the back plate 104. The upper cover plate 101, the outer plate 102, and the back plate 104 form a cylindrical structure with an open lower end, and the battery on the left side is covered inside the cylindrical structure.
[0035] It should be noted that during actual installation and operation, the top cover plate 101, the outer plate 102, and the back plate 104 are all independent components to ensure that they are easy for assembly personnel to install.
[0036] During installation, the wiring harnesses of new energy batteries are numerous and difficult to assemble neatly. Furthermore, the batteries generate significant heat when transmitting power, which is difficult to dissipate and requires water cooling. Therefore, this application incorporates a wiring harness board to modularly integrate the wiring and cooling channels within the protective casing. The specific structure is as follows: a battery insertion port is provided at the lower end of the back plate 104, and a wiring harness port is provided at the upper end of the battery insertion port. A wiring harness board 105 is installed on the outside of the wiring harness port, and the wiring harness board 105 has multiple combing and limiting through holes for the wiring harness and cooling channels to pass through. Additionally, an outer fixing plate 106 is connected to the outside of the wiring harness board 105 via connecting screws. The fixing screws pass through the outer fixing plate 106 and the wiring harness board 105 sequentially before connecting to the back plate 104.
[0037] As for the inside of the protective shell, the battery, wiring harness, cooling water channel and other components are not subject to external impact. Even a slight squeeze or collision can pose a hidden danger to the operation of the equipment or even cause a disaster. Therefore, in order to ensure the safe and reliable operation environment of the new energy battery, a bottom reinforcing plate 108 is provided on the inner side of the lower end of the cylindrical structure that is frequently subjected to external impact to protect the battery and enhance the protective capability of the battery protective shell.
[0038] Currently, during machine operation, the battery's operating status is completely unknown; it can only be estimated using internal data sensors. Furthermore, batteries are inherently unstable, and any accident can be uncontrollable. Therefore, this application incorporates an observation window structure to monitor battery status, facilitate maintenance, and implement emergency response measures. The specific structure is as follows: an observation port is provided on the outer plate 102, and a transparent observation window 107 is connected to the outside of the observation port.
[0039] For mechanical vehicles, firstly, they must have driving performance and lighting function. The lights installed at the rear of the vehicle also need to be protected. The specific structure is as follows: The lower end of the outer plate 102 is provided with a taillight hole 103, and the crane's taillight is exposed from the taillight hole 103.
[0040] During use, it is essential not only to protect the battery's safety but also to prevent potential hazards caused by the battery. Therefore, this application includes a fire extinguishing device inside the protective casing. The fire extinguishing device is a dual-nozzle automatic fire extinguishing device, comprising a 1kg ultrafine dry powder fire extinguisher. It can automatically sense and activate to extinguish a fire, and is equipped with a no-power start device and a quick-connect power ignition device.
[0041] It should be noted that any solutions not detailed in this application may be based on existing technologies.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A protective casing for a battery of an electric tire crane, characterized in that, The device includes a left battery protection unit (1) and a right battery protection unit (2) that are symmetrically arranged on both sides of the rear end of an electric tire crane to protect the battery. The left battery protection unit (1) includes an upper cover plate (101), an outer plate (102) and a back plate (104). The outer plate (102) includes a front side plate, a left side plate and a right side plate connected in sequence in a U-shape. The two sides of the back plate (104) are connected to the left side plate and the right side plate, respectively. The lower end of the upper cover plate (101) is connected to the upper end of the outer plate (102) and the back plate (104). The upper cover plate (101), the outer plate (102) and the back plate (104) form a cylindrical structure with an open lower end. The battery on the left side is covered inside the cylindrical structure.
2. The battery protective shell for an electric tire crane according to claim 1, characterized in that, The lower end of the back plate (104) is provided with a battery insertion port, the upper end of the battery insertion port is provided with a wire harness port, and a wire harness plate (105) is installed on the outside of the wire harness port. The wire harness plate (105) is provided with a plurality of combing and limiting through holes for the wire harness and cooling pipes to pass through.
3. The battery protective housing for an electric tire crane according to claim 2, characterized in that, The wire harness plate (105) is connected to an outer fixing plate (106) by connecting screws on the outside. The fixing screws pass through the outer fixing plate (106) and the wire harness plate (105) in sequence and are then connected to the back plate (104).
4. The battery protective housing for an electric tire crane according to claim 1, characterized in that, The lower inner side of the cylindrical structure is provided with a bottom reinforcing plate (108) for protecting the battery.
5. The battery protective housing for an electric tire crane according to claim 1, characterized in that, An observation port is provided on the outer plate (102), and a transparent observation window (107) is connected to the outside of the observation port.
6. The battery protective housing for an electric tire crane according to claim 1, characterized in that, The lower end of the outer plate (102) is provided with a taillight hole (103), and the crane taillight is exposed from the taillight hole (103).
7. The battery protective housing for an electric tire crane according to claim 1, characterized in that, A fire extinguishing device (109) is provided inside the battery protective casing.
8. A battery protective shell for an electric tire crane according to claim 7, characterized in that, The fire extinguishing device (109) includes a 1kg ultrafine dry powder fire extinguisher.