A new energy electric vehicle battery fixing device
By introducing heat dissipation components and locking modules into the battery fixing device for new energy vehicles, the problems of long installation time, short lifespan, loosening, and poor heat dissipation of traditional fixing methods are solved, achieving efficient heat dissipation and stable fixing of the battery pack, and improving the safety and stability of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING AUTOMOBILE WORKS CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional battery mounting methods in new energy vehicles suffer from problems such as long installation and disassembly times, short lifespan, easy loosening, high noise, and poor heat dissipation, making it difficult to guarantee the stability and safety of the battery pack.
It adopts a specially designed base shell structure, combined with heat dissipation components and a locking module. It achieves automated heat dissipation by using the linkage of a temperature sensor and an air pump, and clamps and fixes the battery pack through the cooperation of ring and cross locking grooves.
It improves the heat dissipation efficiency of the battery pack, enhances stability and safety during vehicle operation, reduces noise generation, prevents battery loosening and impacts, and ensures reliable battery pack fixation.
Smart Images

Figure CN224328742U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric vehicle parts technology, and more specifically, it relates to a battery fixing device for new energy electric vehicles. Background Technology
[0002] New energy vehicles are increasingly adopting unconventional vehicle fuels or novel onboard power systems, with batteries gradually becoming the mainstream energy source. To ensure the performance and safety of new energy vehicles, reliable battery mounting systems are needed to guarantee the stability and safety of the battery pack during vehicle operation.
[0003] Traditional battery mounting methods, such as bolt-on and clip-on fastening, have several problems. Bolt-on fastening is time-consuming to install and remove, has short bolt lifespan, and is prone to disengagement in northern winters. Clip-on fastening is susceptible to loosening between the battery and vehicle body after repeated battery swaps or vehicle vibrations, leading to noise and increasing the likelihood of battery failure. New energy vehicle battery packs are typically heavy and bulky, and are highly sensitive to vibration and impact. Furthermore, batteries generate heat during operation, requiring excellent heat dissipation. Therefore, battery mounting devices need to meet both securing requirements and heat dissipation functions.
[0004] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a battery fixing device for new energy electric vehicles, which ensures that the battery pack can dissipate heat efficiently and remain stable through a specially designed base shell structure.
[0006] The aforementioned battery fixing device for a new energy electric vehicle includes a base shell and a heat dissipation component disposed within the base shell. The heat dissipation component is used to automatically dissipate heat from the base shell. The base shell is provided with multiple locking modules, and four fixing modules are fixedly connected to one end of the outer opening of the base shell. The four fixing modules are provided with mounting holes. The heat dissipation assembly includes a ring shell and a baffle. Multiple through holes are formed in the center of the bottom of the base shell. The ring shell is fixed to the outside of the through holes. A closed pressurization chamber is formed inside the ring shell. An exhaust port is formed at the lower end of the pressurization chamber. One end of the pressurization chamber is connected to the exhaust end of an air pump via a conduit. The air pump is fixed to the outside of the base shell. A closed adsorption chamber is formed between the outside of the baffle and the inside of the base shell. Multiple annular strip-shaped air inlets are spaced apart along the central axis of the base shell at the lower end of the adsorption chamber. The positioning module includes annular positioning ribs and cross positioning ribs. Several annular positioning ribs are fixedly connected to the inner bottom surface of the base shell at intervals along the central axis of the base shell. The cross positioning ribs are fixedly connected to the inner bottom surface of the base shell. A first positioning groove is spaced apart along the central axis of the annular positioning ribs. A second positioning groove is formed on the cross positioning ribs. A battery pack is fixedly connected to the inner side of the first and second positioning grooves.
[0007] Preferably, the adsorption chamber is filled with silica gel adsorbent.
[0008] Preferably, a temperature sensor is provided on the inner side of the annular locking rib, and a microprocessor is provided inside the base shell.
[0009] Preferably, the temperature sensor is electrically connected to the microprocessor via a wire, and the suction pump is electrically connected to the microprocessor via a wire.
[0010] Preferably, an adhesive pad is bonded to the inner side of the second slot, and the inner side of the adhesive pad abuts against the edge of the battery pack.
[0011] Preferably, the base shell is designed as a hollow cylindrical shell.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. Through the linkage between the ring shell and enclosure in the heat dissipation component, the temperature sensor, the microprocessor, and the air pump, the battery generates heat during operation. The temperature sensor monitors the heat and enhances the air circulation rate between the base shell and the environment, thereby improving the heat dissipation effect.
[0014] 2. The battery pack is clamped and fixed by the cooperation of the slot 1 and slot 2 on the annular and cross-shaped locking ribs in the locking assembly, ensuring the stability and safety of the battery pack during vehicle operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an exploded view of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of a half-section of the present invention;
[0018] Figure 4 for Figure 3 A schematic diagram of the structure of part A.
[0019] In the diagram, 1. Base shell; 2. Ring shell; 3. Enclosure; 4. Through hole; 5. Pressurization chamber; 6. Exhaust port; 7. Adsorption chamber; 8. Air inlet; 9. Annular locking rib; 10. Cross locking rib; 11. Slot 1; 12. Slot 2; 13. Battery pack; 14. Rubber pad; 15. Fixing module; 16. Mounting hole. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] like Figures 1 to 4 As shown, a battery fixing device for a new energy electric vehicle includes a base shell 1 and a heat dissipation component disposed inside the base shell 1. The heat dissipation component is used to automatically dissipate heat from the base shell 1. The base shell 1 is provided with multiple locking modules. Four fixing modules 15 are fixedly connected to one end of the outer opening of the base shell 1. The four fixing modules 15 are provided with mounting holes 16. The base shell 1 is fixedly installed to the vehicle frame through the mounting holes 16 provided on the four fixing modules 15.
[0023] like Figure 3 and Figure 4 As shown, the heat dissipation assembly includes a ring shell 2 and a enclosure 3. Multiple through holes 4 are opened in the middle of the bottom of the base shell 1. The ring shell 2 is fixed to the outside of the through holes 4. A closed pressurization chamber 5 is opened inside the ring shell 2. An exhaust port 6 is opened at the lower end of the pressurization chamber 5. One end of the pressurization chamber 5 is connected to the exhaust end of the suction pump through a conduit. The suction pump is fixed to the outside of the base shell 1. A closed adsorption chamber 7 is formed between the outside of the enclosure 3 and the inside of the base shell 1. Multiple annular strip-shaped air inlets 8 are spaced apart along the central axis of the base shell 1 at the lower end of the adsorption chamber 7.
[0024] like Figure 2As shown, the positioning module includes annular positioning ribs 9 and cross-shaped positioning ribs 10. Several annular positioning ribs 9 are fixedly connected to the inner bottom surface of the base shell 1 at intervals along the central axis of the base shell 1. The cross-shaped positioning ribs 10 are fixedly connected to the inner bottom surface of the base shell 1. The annular positioning ribs 9 are provided with slots 11 at intervals along the central axis of the positioning ribs, and the cross-shaped positioning ribs 10 are provided with slots 12. The battery pack 13 is fixedly connected to the inner side of slots 11 and 12. A rubber pad 14 is adhered to the inner side of slot 12. The inner side of the rubber pad 14 abuts against the edge of the battery pack 13. The rubber pad 14 acts as a buffer for the battery pack 13, preventing the battery pack 13 from being bumped and causing danger during vehicle operation. Furthermore, when the rubber pad 14 is tightly connected to the battery pack 13, it can prevent the generation of noise.
[0025] The adsorption chamber 7 is filled with silica gel adsorbent, and the gas drawn in through the air inlet 8 undergoes dehumidification within the adsorption chamber 7. A temperature sensor is located inside the annular retaining rib 9, and a microprocessor is housed within the base shell 1. The temperature sensor and the air pump are electrically connected to the microprocessor via wires. The battery generates heat during operation, which is monitored by the temperature sensor. The microprocessor controls the air pump to draw ambient gas into the pressurization chamber 5. After being pressurized in the pressurization chamber 5, the gas is discharged through the exhaust port 6. The airflow velocity at the bottom of the through-hole 4 increases, creating a pressure difference with the base shell 1, drawing gas and heat out of the base shell 1 through the through-hole 4, thus enhancing the airflow rate between the base shell 1 and the environment and improving heat dissipation. The base shell 1 has a hollow cylindrical shell design.
[0026] Those skilled in the art can use existing technologies they possess, such as installing corresponding mechanical limit switches or photoelectric sensors, to limit the specified positions of each actuator during the above-mentioned operation process; to achieve automated operation, this utility model can use numerical control technology or PLC to control the actions of each actuator.
[0027] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A battery fixing device for a new energy electric vehicle, comprising a base shell (1) and a heat dissipation assembly disposed within the base shell (1), characterized in that: The heat dissipation assembly is used to automatically dissipate heat from the base shell (1). The base shell (1) is provided with multiple slotting modules. Four fixing modules (15) are fixedly connected to one end of the outer opening of the base shell (1). The four fixing modules (15) are provided with mounting holes (16). The heat dissipation assembly includes a ring shell (2) and a enclosure (3). Multiple through holes (4) are provided in the middle of the bottom of the base shell (1). The ring shell (2) is fixedly connected to the outside of the through holes (4). A closed pressurization chamber (5) is provided inside the ring shell (2). An exhaust port (6) is provided at the lower end of the pressurization chamber (5). One end of the pressurization chamber (5) is connected to the exhaust end of the suction pump through a conduit. The suction pump is fixedly connected to the outside of the base shell (1). A closed adsorption chamber (7) is formed between the outside of the enclosure (3) and the inside of the base shell (1). Multiple annular strip-shaped air inlets (8) are provided at intervals along the central axis of the base shell (1) at the lower end of the adsorption chamber (7). The positioning module includes annular positioning ribs (9) and cross positioning ribs (10). Several annular positioning ribs (9) are fixedly connected to the inner bottom surface of the base shell (1) at intervals along the central axis of the base shell (1). The cross positioning ribs (10) are fixedly connected to the inner bottom surface of the base shell (1). The annular positioning ribs (9) are provided with a first positioning groove (11) at intervals along the central axis of the positioning ribs. The cross positioning ribs (10) are provided with a second positioning groove (12). The battery pack (13) is fixedly connected to the inner side of the first positioning groove (11) and the second positioning groove (12).
2. The battery fixing device for a new energy electric vehicle according to claim 1, characterized in that: The adsorption chamber (7) is filled with silica gel adsorbent.
3. The battery fixing device for a new energy electric vehicle according to claim 1, characterized in that: A temperature sensor is provided inside the annular locking rib (9), and a microprocessor is provided inside the base shell (1).
4. The battery fixing device for a new energy electric vehicle according to claim 3, characterized in that: The temperature sensor is electrically connected to the microprocessor via a wire, and the suction pump is electrically connected to the microprocessor via a wire.
5. A battery fixing device for a new energy electric vehicle according to claim 1, characterized in that: A rubber pad (14) is bonded to the inside of the second slot (12), and the inside of the rubber pad (14) abuts against the edge of the battery pack (13).
6. The battery fixing device for a new energy electric vehicle according to claim 1, characterized in that: The base shell (1) is designed as a hollow cylindrical shell.