A battery cell matching insulation protection device

Abstract

The utility model discloses a kind of electric core matching group insulation protection devices, it is related to electric core insulation protection technical field, including electric core group shell, the inside installation of electric core group shell is electric core module, the upper end face of electric core group shell is limited to install insulating plate, the lower end face of insulating plate and the upper end face of electric core module are pasted, the upper end face of insulating plate is provided with cooling assembly;The upper end face of electric core group shell both sides is equipped with multiple limit slots, the bottom end of the both sides of insulating plate is fixedly connected with multiple limit blocks, and limit block is limited to be inserted in the inside of limit slot.The utility model realizes reliable fixing by triple limit structure, and slope guide and spring reset make assembly convenient, linkage type unlocking mechanism improves maintenance efficiency, while ensuring the stability and insulation safety of electric core module.Cooling medium enters serpentine cooling pipe to form closed loop flow from water inlet pipe, cooperate with the insulating plate with excellent heat conduction performance, build the efficient heat conduction path from electric core module to cooling pipe.

Description

Technical Field

[0001] This utility model relates to the field of battery cell insulation protection technology, and in particular to a battery cell assembly insulation protection device. Background Technology

[0002] Battery cell modules often use injection-molded top covers for insulation protection, which are then secured to the module with snap-fit ​​fasteners. This design offers advantages such as simple structure, convenient assembly, and low cost, while the injection molding material effectively meets insulation and high-temperature resistance requirements.

[0003] The insulation protection of existing battery cell modules mostly adopts the design of injection-molded top cover with multiple clips for fixation. This structure has obvious defects in operability and reliability in practical applications: First, the excessive number of clips leads to low assembly efficiency. Operators need to align and press multiple clips one by one, which not only increases working time, but also makes it easy to cause omissions or loose connections due to tool interference in a confined space.

[0004] To address the aforementioned problems, this utility model proposes a battery cell assembly insulation protection device. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model proposes a battery cell assembly insulation protection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery cell assembly insulation protection device, comprising a battery cell assembly shell, a battery cell module installed inside the battery cell assembly shell, an insulating plate installed on the upper end face of the battery cell assembly shell, the lower end face of the insulating plate being in contact with the upper end face of the battery cell module, and a cooling component provided on the upper end face of the insulating plate; multiple limiting grooves are provided on both sides of the upper end face of the battery cell assembly shell, and multiple limiting blocks are fixedly connected to the bottom ends of both sides of the insulating plate, with the limiting blocks being inserted into the limiting grooves for limiting.

[0007] The present invention is further configured such that limit rods are slidably installed on both sides of the battery cell housing at the positions corresponding to the limit grooves, the limit rods penetrate into the interior of the limit grooves, and limit holes are provided on the limit blocks, the limit rods are inserted into the limit holes, and the end of the limit rods near the limit holes is set with an inclined surface.

[0008] The present invention is further configured such that the end of the limiting rod on the same side away from the limiting block is fixedly connected by a connecting plate.

[0009] The present invention is further configured such that a return spring is sleeved on the outer side of each limiting rod, one end of the return spring is fixedly connected to the connecting plate, and the other end of the return spring is fixedly connected to the outer wall of the battery cell housing.

[0010] The present invention is further configured such that the cooling assembly includes a cooling pipe, which is installed on the upper end face of the insulating plate by a snap-fit ​​limiter, and the cooling pipe is arranged in a continuous S-shape; a circulating cooling water assembly is fixedly installed on the outer wall of the battery cell housing, and an inlet pipe and an outlet pipe are fixedly installed on the upper end face of the circulating cooling water assembly, and the two ends of the cooling pipe are fixedly connected to and communicate with the inlet pipe and the outlet pipe respectively.

[0011] The present invention is further configured such that a cover is fixedly installed on the upper end face of the insulating plate, the cover covers the outside of the cooling pipe, and a clearance hole is opened on the side wall of the cover corresponding to the position of the cooling pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This battery cell assembly insulation protection device consists of a battery cell housing, a battery cell module, an insulating plate, a limiting groove, a limiting block, a limiting rod, a limiting hole, a connecting plate, and a return spring. During installation, the limiting block of the insulating plate presses down along the limiting groove, and the inclined surface of the limiting rod guides it outward to compress the return spring. After the limiting hole is aligned, the spring rebounds, allowing the limiting rod to insert and lock. During disassembly, pulling the connecting plate simultaneously retracts all the limiting rods. The triple limiting structure achieves reliable fixation, the inclined surface guide and spring return facilitate assembly, and the linked unlocking mechanism improves maintenance efficiency while ensuring the stability and insulation safety of the battery cell module.

[0014] 2. The cell assembly insulation protection device consists of a circulating cooling water assembly, an S-shaped cooling pipe, an inlet pipe, an outlet pipe, and a high thermal conductivity insulation plate. During operation, the cooling medium enters the serpentine cooling pipe from the inlet pipe, forming a closed-loop flow. Combined with the insulation plate's excellent thermal conductivity, this creates a highly efficient heat conduction path from the cell module to the cooling pipe. This achieves efficient and uniform heat dissipation, ensuring the reliability and safety of the battery system under extreme operating conditions. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cooling component structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the present invention.

[0019] Reference numerals in the attached drawings: 1. Battery cell housing; 2. Battery cell module; 3. Insulating plate; 4. Limiting groove; 5. Limiting block; 6. Limiting rod; 7. Limiting hole; 8. Connecting plate; 9. Return spring; 10. Cooling pipe; 11. Circulating cooling water assembly; 12. Water inlet pipe; 13. Water outlet pipe; 14. Cover. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] Please see Figure 1-3 This utility model provides a technical solution: a battery cell assembly insulation protection device, including a battery cell assembly shell 1, a battery cell module 2 installed inside the battery cell assembly shell 1, an insulating plate 3 installed on the upper end face of the battery cell assembly shell 1, the lower end face of the insulating plate 3 being in contact with the upper end face of the battery cell module 2, and a cooling component being provided on the upper end face of the insulating plate 3; multiple limiting grooves 4 are provided on both sides of the upper end face of the battery cell assembly shell 1, and multiple limiting blocks 5 are fixedly connected to the bottom ends of both sides of the insulating plate 3, with the limiting blocks 5 being inserted into the limiting grooves 4 for limiting.

[0024] Limiting rods 6 are slidably installed on both sides of the battery cell housing 1 at positions corresponding to the limiting grooves 4. The limiting rods 6 penetrate into the interior of the limiting grooves 4. Limiting holes 7 are provided on the limiting blocks 5. The limiting rods 6 are inserted into the limiting holes 7. The end of the limiting rod 6 near the limiting hole 7 is beveled. A return spring 9 is sleeved on the outside of the limiting rods 6. One end of the return spring 9 is fixedly connected to the connecting plate 8, and the other end of the return spring 9 is fixedly connected to the outer wall of the battery cell housing 1.

[0025] In this embodiment of the utility model: the end of the limiting rod 6 on the same side that is away from the limiting block 5 is fixedly connected by the connecting plate 8.

[0026] The cooling assembly includes a cooling pipe 10, which is mounted on the upper surface of the insulating plate 3 by a snap-fit. The cooling pipe 10 is arranged in a continuous S-shape to increase the flow area of ​​the coolant, enhance the uniformity of heat dissipation, and the snap-fit ​​fixation facilitates installation and replacement.

[0027] A circulating cooling water assembly 11 is fixedly installed on the outer wall of the battery cell housing 1. An inlet pipe 12 and an outlet pipe 13 are fixedly installed on the upper end face of the circulating cooling water assembly 11. The two ends of the cooling pipe 10 are fixedly connected to the inlet pipe 12 and the outlet pipe 13 respectively and are in communication.

[0028] The circulating cooling water assembly 11 is an existing device, and its working principle, size and model are irrelevant to the function of this application, so it will not be described in detail. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0029] A cover 14 is fixedly installed on the upper surface of the insulating plate 3. The cover 14 covers the outside of the cooling pipe 10, and a clearance hole is opened on the side wall of the cover 14 corresponding to the position of the cooling pipe 10. This protects the cooling pipe 10 from external impacts while allowing pipe connection, thus balancing protection and functionality.

[0030] Working principle:

[0031] First, the battery cell module 2 is installed in the internal cavity of the battery cell housing 1, ensuring accurate positioning. Then, the insulating plate 3 is smoothly placed over the upper surface of the battery cell module 2, aligning the limiting block 5 at the bottom of the insulating plate 3 with the limiting groove 4 on the upper surface of the battery cell housing 1. During the downward pressing of the insulating plate 3, the bottom of the limiting block 5 contacts the guide slope of the limiting rod 6. Through the guiding action of the slope, the limiting rod 6 slides smoothly outward radially. At this time, the connecting plate 8 moves outward synchronously and stretches the return spring 9 to store elastic potential energy. When the limiting block 5 is fully inserted into the limiting groove 4 and the limiting hole 7 and the limiting rod 6 are coaxial, the return spring 9 releases its stored energy, pushing the limiting rod 6 into the limiting hole 7 to complete self-locking, forming a stable triple limiting structure (the coordinated cooperation of the limiting groove 4, the limiting block 5, and the limiting rod 6). During disassembly, simply apply symmetrical force to the connecting plates 8 on both sides to simultaneously drive all the limit rods 6 out of the limit holes 7, thereby quickly unlocking the insulating plate 3. This linkage mechanism improves the efficiency of disassembly and assembly.

[0032] In terms of thermal management, the circulating cooling water assembly 11 delivers cooling medium to the continuously S-shaped cooling pipes 10 through the inlet pipe 12, forming a closed-loop circulation via the outlet pipe 13. Combined with the insulation plate 3 made of a high thermal conductivity insulating material (such as oxygen resin composite material), an efficient heat transfer path is achieved from the cell module 2 → insulation plate 3 → cooling pipe 10, ensuring insulation withstand voltage performance while controlling the module temperature difference. The cover 14 achieves a sealing fit with the cooling pipe 10 through clearance holes, protecting the pipeline and maintaining airflow organization.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A battery cell assembly insulation protection device, comprising a battery cell assembly housing (1), characterized in that: The battery cell housing (1) is equipped with a battery cell module (2). An insulating plate (3) is installed on the upper end face of the battery cell housing (1). The lower end face of the insulating plate (3) is in contact with the upper end face of the battery cell module (2). A cooling component is provided on the upper end face of the insulating plate (3). Multiple limiting grooves (4) are opened on both sides of the upper end face of the battery cell housing (1). Multiple limiting blocks (5) are fixed to the bottom ends of both sides of the insulating plate (3). The limiting blocks (5) are inserted into the limiting grooves (4).

2. The cell assembly insulation protection device according to claim 1, characterized in that: Limiting rods (6) are slidably installed on both sides of the battery cell housing (1) at the corresponding positions of the limiting grooves (4). The limiting rods (6) penetrate into the interior of the limiting grooves (4). Limiting holes (7) are opened on the limiting blocks (5). The limiting rods (6) and the limiting holes (7) are inserted and matched. The end of the limiting rods (6) near the limiting holes (7) is set with an inclined surface.

3. The cell assembly insulation protection device according to claim 2, characterized in that: The end of the limiting rod (6) on the same side that is away from the limiting block (5) is fixedly connected by the connecting plate (8).

4. The cell assembly insulation protection device according to claim 3, characterized in that: Each of the limiting rods (6) is fitted with a reset spring (9). One end of the reset spring (9) is fixed to the connecting plate (8), and the other end of the reset spring (9) is fixed to the outer wall of the battery cell housing (1).

5. The cell assembly insulation protection device according to claim 1, characterized in that: The cooling assembly includes a cooling pipe (10), which is installed on the upper surface of the insulating plate (3) by a snap-fit ​​limiter. The cooling pipe (10) is arranged in a continuous S-shape. A circulating cooling water assembly (11) is fixedly installed on the outer wall of the battery cell housing (1). An inlet pipe (12) and an outlet pipe (13) are fixedly installed on the upper surface of the circulating cooling water assembly (11). The two ends of the cooling pipe (10) are fixedly connected and communicated with the inlet pipe (12) and the outlet pipe (13) respectively.

6. The cell assembly insulation protection device according to claim 5, characterized in that: The upper end face of the insulating plate (3) is fixedly installed with a cover (14), which covers the outside of the cooling pipe (10). A clearance hole is provided on the side wall of the cover (14) at the position corresponding to the cooling pipe (10).

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