Novel power battery temperature sensor NTC fixing structure and CCS assembly
Through the embedded connection between the bracket and the aluminum bar, the high cost and low efficiency problems of traditional NTC fixed structures are solved, and the rapid fixation and cost reduction of NTC sensors are achieved.
Patent Information
- Application Number
- CN202422754807.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The thermal riveting processing equipment with NTC fixed structure in traditional CCS components has a long test time, high cost and prone to defects, resulting in low production efficiency.
The integrated injection molded bracket structure is adopted, including an embedded base plate and an open latch column. It combines the embedded connection between the I-shaped reinforcement plate and the aluminum bar, eliminating the heat rivet process, and the NTC sensor is fixed through the open latch column and the aluminum bar.
It realizes rapid fixation of NTC sensors, improves production efficiency, reduces costs, and simplifies processing processes.
Smart Images
Figure CN223272035U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a CCS product, in particular to a novel NTC fixing structure of a power battery temperature sensor and a CCS component adopting the NTC fixing structure. Background Art
[0002] The NTC temperature sensor is a key component of the CCS (Computer Control System) in new energy power battery modules and is a crucial element for temperature measurement. In traditional CCSs, the FPC assembly is laser-welded between a nickel sheet and an aluminum bar, and the aluminum bar is secured to the NTC bracket using hot riveting. This hot riveting method requires hot riveting equipment, which has the drawbacks of time-consuming and expensive commissioning and verification. Furthermore, hot riveting is prone to defects, resulting in low process efficiency and high processing costs. Utility Model Content
[0003] In order to solve the deficiencies of the above technologies, the present invention provides a new power battery temperature sensor NTC fixing structure and CCS assembly.
[0004] In order to solve the above technical problems, the technical solution adopted by the present utility model is: a new type of power battery temperature sensor NTC fixing structure, the NTC fixing structure is a bracket;
[0005] The bracket is an integral injection-molded structure, including an embedded base plate and an open latch column located on the embedded base plate;
[0006] The embedded bottom plate is provided with an installation opening for the adaptation installation of the temperature sensor NTC;
[0007] The split latch column is compatible with the aluminum bar for installation.
[0008] Preferably, an anti-disconnection hook is formed on the top of the open latch column.
[0009] A CCS component includes an isolation plate, an FPC, and a new type of power battery temperature sensor NTC fixing structure.
[0010] Preferably, the CCS component also includes:
[0011] Aluminum bar, which is stamped from aluminum and has a through hole for the split latch;
[0012] The temperature sensor NTC is connected to the FPC by soldering and fixed on the aluminum bar through a bracket.
[0013] Preferably, the temperature sensor NTC has an I-shaped reinforcement plate;
[0014] Embedding grooves are formed around the reinforcing plate, and the embedded bottom plate of the bracket is assembled with the embedded grooves at the installation opening.
[0015] Preferably, the diameter of the mounting opening of the bracket is larger than the width of the middle portion of the I-shaped reinforcing plate and smaller than the distance between the two end portions of the I-shaped reinforcing plate.
[0016] Preferably, the temperature sensor NTC is externally connected to a reinforcement plate via thermosetting adhesive.
[0017] Preferably, an aluminum bar groove is formed on the isolation plate, and the aluminum bar is installed in the aluminum bar groove.
[0018] Preferably, the FPC is fixed on the isolation board.
[0019] The utility model discloses a novel NTC fixing structure and CCS assembly for a power battery temperature sensor. The structure adopts a split pin column matched with a through hole to connect the aluminum bar, and an "I"-shaped structural reinforcement plate is embedded in the bracket for connection. This eliminates the traditional hot riveting process between the aluminum bar and the bracket, has the advantages of directly reducing the number of hot rivets and improving production efficiency, and also plays a key role in reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the NTC fixing structure (i.e., bracket) of the utility model.
[0021] Figure 2 This is a schematic diagram of the assembly structure of the bracket, temperature sensor NTC and aluminum bar of the utility model.
[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the assembly of the bracket and the temperature sensor NTC of the utility model.
[0023] Figure 4 This is a schematic structural diagram of the CCS component of the present utility model.
[0024] Figure 5 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0025] In the figure: 1. Aluminum bar; 2. Bracket; 3. Temperature sensor NTC; 4. FPC; 5. Isolation plate; 11. Through hole; 21. Embedded base plate; 22. Opening pin column; 23. Anti-unhooking; 24. Installation opening; 31. Reinforcement plate; 32. Embedded slot. DETAILED DESCRIPTION
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0027] Example 1
[0028] This embodiment discloses a new type of power battery temperature sensor NTC fixing structure, the NTC fixing structure is Figure 1 Bracket 2 shown;
[0029] The bracket 2 is integrally injection-molded from PC material and is mainly used to fix the temperature sensor NTC3 on the FPC (flexible printed circuit).
[0030] For ease of description, the bracket 2 is divided into an embedded base plate 21 and an open latch column 22; wherein, the embedded base plate 21 is provided with a mounting opening 24, which is used for the adaptive installation of the temperature sensor NTC3 to meet the setting and use of the temperature sensor NTC3 in the CCS component.
[0031] The open latch column 22 is a plug-in column structure distributed on the embedded base plate 21, which is used to adapt to the aluminum bar 1 for installation, so as to fix the temperature sensor NTC3 on the aluminum bar 1.
[0032] As a preferred embodiment, in order to meet the assembly requirements of the temperature sensor NTC3 at the installation opening 24, as shown in FIG. Figure 2 and Figure 3 As shown, the temperature sensor NTC3 is made into an I-shaped reinforcement plate 31; specifically, the temperature sensor NTC3 is externally connected to the reinforcement plate 31 through thermosetting adhesive.
[0033] Embedding grooves 32 are formed around the reinforcing plate 31 , so that the embedded base plate 21 of the bracket 2 is embedded and assembled with the embedded grooves 32 at the installation opening 24 .
[0034] Preferably, the diameter of the mounting opening 24 of the bracket 2 is typically larger than the mid-width of the I-shaped reinforcement plate 31 and smaller than the distance between the ends of the I-shaped reinforcement plate 31. This allows the embedded base plate 21 to be inserted and assembled into the embedding groove 32 at the mounting opening 24, so that the "I"-shaped reinforcement plate 31 of the temperature sensor NTC3 can be engaged and embedded with the bracket 2. Thus, the bracket secures the temperature sensor NTC3 in the vertical direction. Typically, the embedded base plate 21 has a certain amount of vertical movement in the embedding groove 32, allowing the temperature sensor NTC3 to be properly attached to the outer surface of the module cell using silicone thermal adhesive.
[0035] Therefore, the new power battery temperature sensor NTC fixing structure disclosed in this embodiment is a newly designed NTC fixing structure, which adopts the form of an open pin column to connect the aluminum bar, and uses an embedded base plate 21 to adapt and assemble with the temperature sensor NTC3. The temperature sensor NTC is fixed in an embedded manner, which can achieve rapid fixation of the temperature sensor NTC and eliminate the traditional process of hot riveting the aluminum bar and the bracket.
[0036] Example 2
[0037] This embodiment discloses a CCS assembly, which adopts the novel power battery temperature sensor NTC fixing structure disclosed in the first embodiment to fix the temperature sensor NTC3.
[0038] like Figure 4 and Figure 5 As shown, the CCS components mainly include the following parts:
[0039] Aluminum bar 1, stamped from aluminum, is mainly used for welding the positive and negative electrodes of the battery cell and connecting the battery cells in series and parallel;
[0040] Bracket 2, made of PC injection molding, is mainly used to fix the temperature sensor NTC3 on FPC4;
[0041] The temperature sensor NTC3, i.e. the thermistor, is connected to the FPC circuit by soldering and is connected to the external reinforcement plate 31 by thermosetting;
[0042] FPC4, also known as flexible circuit board, is the main component for module voltage signal and temperature acquisition.
[0043] The isolation plate 5 is made of PC material by injection molding or vacuum molding, and serves as the insulating layer between the module and the outer box. At the same time, the isolation plate 5 is also used for the arrangement of the aluminum bar 1 and the FPC 4. The FPC 4 is fixed to the isolation plate 5 by using existing adhesives or other existing methods. An aluminum bar groove is formed on the isolation plate 5, and the aluminum bar 1 is installed in the aluminum bar groove by using existing clips or other existing structures.
[0044] The temperature sensor NTC3 is connected to the bracket 2 via an I-shaped structural reinforcement plate 31 , specifically, the embedded assembly connection is achieved at the mounting opening 24 of the embedded bottom plate 21 of the bracket 2 .
[0045] Aluminum bar 1 is provided with a through hole 11 adapted to accommodate a split latch post 22. This through hole 11 corresponds one-to-one with the split latch post 22 on bracket 2. The specific opening characteristics of split latch post 22 allow it to retract when passing through the through hole. When the external force is removed, split latch post 22 returns to its original position, thereby securing the aluminum bar 1. Thus, after the split latch post of bracket 2 and aluminum bar 1 are attached, the split latch post 23 secures it to the aluminum bar 1.
[0046] As preferably, Figure 1 and Figure 3 As shown, an anti-drop hook 23 is formed at the top of the split latch column 22 so that the split latch column 23 can be firmly fixed on the aluminum bar 1.
[0047] Preferably, the diameter of the through hole on the aluminum bar 1 is usually 4.0 mm-5.0 mm.
[0048] In summary, for the CCS assembly disclosed in this embodiment that applies a new power battery temperature sensor NTC fixing structure, after the temperature sensor NTC is connected to the FPC circuit by soldering, the temperature sensor NTC is embedded and assembled with the bracket through the "I"-shaped reinforcement plate structure, and then the bracket is fixedly connected to the aluminum bar through the open pin column, so that the temperature sensor NTC is directly fixed on the aluminum bar through the bracket.
[0049] Therefore, the aluminum bar is connected by matching the split pin column with the through hole, and the "I"-shaped structural reinforcement plate is embedded in the bracket for connection. Since the split pin column can be used to connect the aluminum bar in one step, the process is simple and efficient, which realizes the rapid fixation of the temperature sensor NTC and improves production efficiency. In addition, the traditional hot riveting process between the aluminum bar and the bracket is omitted, which directly reduces the number of hot riveting operations, consumes a lot of debugging time and material costs, and plays a key role in reducing costs.
[0050] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.
Claims
1. A new type of power battery temperature sensor NTC fixing structure, characterized by: The NTC fixing structure is a bracket (2); The bracket (2) is an integral injection-molded structure, comprising an embedded base plate (21) and an open latch post (22) located on the embedded base plate (21); The embedded bottom plate (21) is provided with a mounting opening (24), and the mounting opening (24) is used for the adaptive installation of the temperature sensor NTC (3); The split latch column (22) is adapted to be installed with the aluminum bar (1).
2. The novel power battery temperature sensor NTC fixing structure according to claim 1 is characterized in that: An anti-disengagement hook (23) is formed on the top end of the open latch column (22).
3. A CCS assembly, comprising an isolation plate (5) and an FPC (4), characterized in that: It also includes the new power battery temperature sensor NTC fixing structure according to any one of claims 1-2.
4. The CCS assembly according to claim 3, characterized in that: The CCS components also include: An aluminum bar (1), wherein the aluminum bar (1) is formed by stamping an aluminum material, and a through hole (11) adapted to fit an open latch column (22) is provided on the aluminum bar (1); A temperature sensor NTC (3) is connected to the FPC (4) by soldering and is fixed to the aluminum bar (1) through a bracket (2).
5. The CCS assembly according to claim 4, characterized in that: The temperature sensor NTC (3) has a reinforcing plate (31) in an I-shaped structure; Embedding grooves (32) are formed around the reinforcing plate (31), and the embedded base plate (21) of the bracket (2) is assembled with the embedded grooves (32) at the installation opening (24).
6. The CCS assembly according to claim 5, characterized in that: The diameter of the mounting opening (24) of the bracket (2) is larger than the width of the middle portion of the I-shaped reinforcing plate (31) and smaller than the distance between the two end portions of the I-shaped reinforcing plate (31).
7. The CCS assembly according to claim 5, characterized in that: The temperature sensor NTC (3) is externally connected to a reinforcing plate (31) via thermosetting adhesive.
8. The CCS assembly according to claim 5, characterized in that: An aluminum bar groove is formed on the isolation plate (5), and the aluminum bar (1) is installed in the aluminum bar groove.
9. The CCS assembly according to claim 8, characterized in that: The FPC (4) is fixed on the isolation plate (5).