NTC fixing support and temperature acquisition structure of CCS

Abstract

The utility model discloses an NTC fixing support and temperature acquisition structure of a CCS, comprising a support base body, a profiling cavity used for placing a reinforcing FR4 plate is formed in a set area of the support base body, and the set area is provided with a plurality of first buckles and second buckles used for limiting the reinforcing FR4 plate; the support base body is provided with an open hole, the open hole is communicated with the profiling cavity, and the open hole is used for a heat conduction pad to pass through. The NTC fixing support is easy to install and reliable in fixation, the efficiency is high when the NTC fixing support is integrated with other components of a temperature acquisition structure, and integration of the temperature acquisition structure is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery module CCS product NTC fixed technical field, concretely relates to a kind of NTC fixed support and temperature acquisition structure of CCS. BACKGROUND

[0002] The integrated busbar is the English full name of Cell Contact System, and is abbreviated as CCS. The negative temperature coefficient thermistor is the English full name of Negative Temperature Coefficient Thermistor, and is abbreviated as NTC. FR4 is the English full name of Flame Retardant 4, which is a glass fiber epoxy resin copper clad plate material.

[0003] The temperature acquisition structure of CCS plays a key role in safety performance as the core part of cell state monitoring. The temperature acquisition structure of CCS includes various types, wherein the traditional blister scheme CCS, the reinforcing FR4 plate is fixed by the pin riveting of NTC fixing support. The traditional hot-pressing scheme CCS, the reinforcing FR4 plate is limited by the pin of NTC fixing support and the hot-pressing combination of upper and lower insulating films.

[0004] Currently, in order to realize the cost reduction of the blister scheme CCS, the NTC fixing support riveting process is cancelled, and the corresponding hot riveting tool is reduced. Therefore, a new type of NTC fixing support of CCS is needed to facilitate the integration of temperature acquisition structure. At present, there is a lack of a temperature acquisition structure with a new type of NTC fixing support to better realize the temperature acquisition function.

[0005] Therefore, a new technology is needed to solve the problem of lacking a NTC fixing support of CCS in the prior art. A new technology is needed to solve the problem of lacking a temperature acquisition structure with a new type of NTC fixing support in the prior art. UTILITY MODEL CONTENT

[0006] To solve the above problems in the prior art, the utility model provides a NTC fixing support of CCS, which is simple to install, reliable to fix, efficient to integrate with other components of temperature acquisition structure, and facilitates the integration of temperature acquisition structure.

[0007] The utility model adopts the following technical solutions:

[0008] The application discloses a NTC fixing support of a CCS, which comprises a support base body, a profiled cavity for arranging a reinforcing FR4 plate is formed on a set region of the support base body, and a plurality of first buckles and second buckles for limiting the reinforcing FR4 plate are arranged on the set region; an opening is arranged on the support base body, the opening is communicated with the profiled cavity, and the opening is used for passing through a heat-conducting pad.

[0009] Further, a limiting block is arranged on the set region of the support base body, and the limiting block is used for limiting the reinforcing FR4 plate.

[0010] Further, the first buckle is a strip-shaped limiting buckle, and the second buckle is a mushroom head airplane buckle.

[0011] Further, the first buckle, the second buckle and the limiting block are all provided with a guide inclined surface.

[0012] Further, the first buckle and the second buckle are both provided with a buckle avoiding groove.

[0013] Further, the support base body is further provided with a positioning hole, and the positioning hole is used for mounting the support base body on a bottom integrated body.

[0014] Further, the support base body is a square plate.

[0015] Another purpose of the application is to provide a temperature acquisition structure, so as to better realize the temperature acquisition function.

[0016] The application discloses a temperature acquisition structure, which comprises a bottom integrated body, a reinforcing FR4 plate, a circuit board, an aluminum bar, a heat-conducting pad and the NTC fixing support of the CCS. The support base body is arranged on the bottom integrated body; the reinforcing FR4 plate is connected with the circuit board, the circuit board is provided with a thermistor, and is used for acquiring temperature; the reinforcing FR4 plate is arranged in the profiled cavity and is limited by the first buckle and the second buckle; the aluminum bar is arranged on the bottom integrated body; the bottom integrated body is provided with a through hole corresponding to the arrangement position of the opening; the heat-conducting pad is connected and fixed with the reinforcing FR4 plate through the through hole and the opening; and the heat-conducting pad is used for being connected with a structure to be acquired temperature.

[0017] Further, the bottom integrated body is a plastic suction isolation plate or a hot-pressing film.

[0018] Further, the heat-conducting pad is fixedly pasted with the reinforcing FR4 plate.

[0019] Compared with the prior art, the application has the beneficial effects that:

[0020] The utility model discloses a NTC fixed bolster of CCS, after fixing (such as fixing on the bottom integrated body), the reinforcing FR4 board can be placed in the profiling cavity, and is limited by the first buckle and the second buckle, effectively guarantee the stability of reinforcing FR4 board after installation, is favorable to the connection fixed of heat conduction pad and reinforcing FR4 board, effectively avoids the problem of temperature collection bad caused by temperature collection point bad fixation, the utility model discloses the NTC fixed bolster, and the installation is simple, and the fixation is reliable, and the other components (such as reinforcing FR4 board, heat conduction pad) of temperature collection structure are integrated together with high efficiency, and the integration of temperature collection structure is facilitated.

[0021] The utility model discloses a temperature collection structure, and each component connection is reliable, can better realize temperature collection function. DRAWINGS

[0022] The utility model discloses a temperature collection structure, and each component connection is reliable, can better realize temperature collection function.

[0023] Figure 1 It is the three-dimensional schematic view of the first perspective of the utility model NTC fixed bolster;

[0024] Figure 2 It is the three-dimensional schematic view of the second perspective of the utility model NTC fixed bolster;

[0025] Figure 3 It is Figure 2 The local enlarged view at H;

[0026] Figure 4 It is the plan view of the utility model NTC fixed bolster;

[0027] Figure 5 It is Figure 4 The sectional view at P-P;

[0028] Figure 6 It is the explosion view of the utility model temperature collection structure;

[0029] Figure 7 It is the schematic diagram (partial schematic diagram) that reinforcing FR4 board is placed in profiling cavity and is limited by the first buckle and the second buckle;

[0030] Figure 8 It is the schematic diagram of the utility model temperature collection structure after integration.

[0031] DRAWINGS

[0032] 1 - support base body; A - set area; 11 - profiled cavity; 12 - first buckle; 121 - strip-shaped body; 122 - strip-shaped protrusion; 13 - second buckle; 131 - first half buckle; 132 - second half buckle; K1 - buckle body; K2 - buckle protrusion; B - gap; 14 - opening; S - longitudinal center line; 15 - positioning hole; 16 - limiting block; C - guide inclined surface; D - buckle avoiding groove; E - transverse direction; F - longitudinal direction; H - partial enlarged view; P-P - section view symbol;

[0033] 2 - bottom integrated body; 21 - through hole; G - vacuum plastic isolation plate; G1 - protrusion; G2 - positioning column;

[0034] 3 - reinforcing FR4 plate;

[0035] 4 - circuit board;

[0036] 5 - aluminum bar;

[0037] 6 - heat-conducting pad. DETAILED DESCRIPTION

[0038] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effects of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference numerals in the drawings indicate the same or similar parts.

[0039] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and the like used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0040] Referring to Figures 1 to 8 , a NTC fixing support of a CCS, comprising a support base body 1, a profiled cavity 11 for placing a reinforcing FR4 plate 3 is formed on a set area A of the support base body 1, and the set area A is provided with a plurality of first buckles 12 and second buckles 13 for limiting the reinforcing FR4 plate 3; an opening 14 is provided on the support base body 1, the opening 14 communicates with the profiled cavity 11, and the opening 14 is used for passing through a heat-conducting pad 6.

[0041] Referring to Figures 1 to 8 , in one embodiment, a limiting block 16 is further provided on the set area A of the support base body 1, and the limiting block 16 is used for limiting the reinforcing FR4 plate 3.

[0042] Referring toFigures 1 to 8 In one embodiment, the first buckle 12 is a strip-shaped limiting buckle. Preferably, the first buckle 12 has a strip-shaped main body 121 and a strip-shaped protrusion 122, and the strip-shaped protrusion 122 and the strip-shaped main body 121 are integrally connected.

[0043] Referring to Figures 1 to 8 In one embodiment, the second buckle 13 is a mushroom head airplane buckle. Preferably, one of the second buckles 13 includes a first half buckle 131 and a second half buckle 132, the first half buckle 131 and the second half buckle 132 are arranged on the bracket base body 1 with a set gap B, and the first half buckle 131 and the second half buckle 132 are symmetrically arranged on the bracket base body 1. Since the outer contour of the combination of the first half buckle 131 and the second half buckle 132 resembles a mushroom head, the second buckle 13 is also called a mushroom head airplane buckle. The first half buckle 131 and the second half buckle 132 each have a buckle main body K1 and a buckle protrusion K2.

[0044] Referring to Figures 1 to 8 In one embodiment, the first buckle 12, the second buckle 13, and the limiting block 16 are each provided with a guide inclined surface C.

[0045] Referring to Figures 1 to 8 In one embodiment, the first buckle 12 and the second buckle 13 are each provided with a buckle avoiding groove D. The buckle avoiding groove D is arranged through the bracket base body 1. The existence of the buckle avoiding groove D allows the first buckle 12 and the second buckle 13 to be slightly elastically deformed by human manipulation, which is beneficial for the FR4 reinforcing plate to be loaded into the profiling cavity 11.

[0046] Referring to Figures 1 to 8 In one embodiment, the bracket base body 1 is a square plate, and the set area A is an area adjacent to one end of the bracket base body 1.

[0047] Referring to Figures 1 to 8 In one embodiment, the first buckle 12 is provided with three first buckles 12, and the three first buckles 12 are arranged along the transverse direction E of the bracket base body 1. Two of the first buckles 12 are symmetrically arranged on the bracket base body 1 with the longitudinal center line S of the opening 14 as the axis of symmetry. The remaining one of the first buckles 12 is arranged on the bracket base body 1 through which the longitudinal center line S of the opening 14 passes.

[0048] Referring to Figures 1 to 8 In one embodiment, the second buckle 13 is provided with two second buckles 13, and the two second buckles 13 are symmetrically arranged on the bracket base body 1 with the longitudinal center line S of the opening 14 as the axis of symmetry.

[0049] Referring to Figures 1 to 8 In one embodiment, the limiting blocks 16 are provided with four, two of which are arranged along the transverse direction E of the support base body 1, and the two limiting blocks 16 are symmetrically arranged on the support base body 1 with the longitudinal center line S of the opening 14 as the axis of symmetry; the remaining two limiting blocks 16 are arranged along the longitudinal direction F of the support base body 1, and the remaining two limiting blocks 16 are also symmetrically arranged on the support base body 1 with the longitudinal center line S of the opening 14 as the axis of symmetry.

[0050] Referring to Figures 1 to 8 In one embodiment, the profiling cavity 11 is adapted to the shape of the reinforcing FR4 plate 3.

[0051] Referring to Figures 1 to 8 In one embodiment, the support base body 1 is further provided with a positioning hole 15, which is used for mounting the support base body 1 to the bottom integrated body 2.

[0052] Referring to Figures 1 to 8 In one embodiment, the positioning hole 15 is an oblong hole.

[0053] Another purpose of the utility model is to provide a temperature acquisition structure to better realize the temperature acquisition function.

[0054] Referring to Figures 1 to 8 A temperature acquisition structure, comprising a bottom integrated body 2, a reinforcing FR4 plate 3, a circuit board 4, an aluminum bar 5, a heat-conducting pad 6 and the CCS NTC fixing support; the support base body 1 is arranged on the bottom integrated body 2; the reinforcing FR4 plate 3 is connected with the circuit board 4, and the circuit board 4 is provided with a thermistor for temperature acquisition; the reinforcing FR4 plate 3 is arranged in the profiling cavity 11 and limited by the first buckle 12 and the second buckle 13; the aluminum bar 5 is arranged on the bottom integrated body 2; the bottom integrated body 2 is provided with a through hole 21 corresponding to the arrangement position of the opening 14; the heat-conducting pad 6 is connected and fixed with the reinforcing FR4 plate 3 through the through hole 21 and the opening 14; the heat-conducting pad 6 is used to be connected with a structure (such as a heat source structure) to be acquired temperature. Wherein, the temperature acquisition structure belongs to a component part of CCS (i.e. integrated busbar). Wherein, the aluminum bar 5 is also called aluminum conductive sheet. Wherein, the reinforcing FR4 plate 3 is limited in the profiling cavity 11 by the first buckle 12 and the second buckle 13, which can effectively avoid displacement and disengagement of the reinforcing FR4 plate 3 during the process of taking and carrying the temperature acquisition structure, and also effectively avoid displacement and disengagement of the reinforcing FR4 plate 3 after the CCS is assembled to the battery pack, effectively avoiding the problem of poor acquisition of the temperature acquisition point (heat-conducting pad 6).

[0055] In one embodiment, the bottom integrated body 2 is a vacuum formed isolation plate G or a hot-pressed film. Preferably, referring to Figures 1 to 8 In this embodiment, the bottom integrated body 2 is a vacuum formed isolation plate G, which has a profiling position (the support base 1 can be fixed in the profiling position) adapted to fix the support base 1; meanwhile, the vacuum formed isolation plate G also has a protrusion G1, and the support base 1 is connected with the protrusion G1 through the positioning hole 15; the vacuum formed isolation plate G is provided with a plurality of positioning columns G2 for connecting the aluminum bar 5.

[0056] Preferably, referring to Figures 1 to 8 In one embodiment, the reinforcing FR4 plate 3 is provided with a connecting hole for connecting with the second buckle 13.

[0057] In one embodiment, the heat-conducting pad 6 is fixedly attached with the reinforcing FR4 plate 3.

[0058] In one embodiment, the circuit board 4 is a flexible circuit board, also known as FPC; the reinforcing FR4 plate 3 is fixedly attached with the flexible circuit board. Since the circuit board 4 is a flexible circuit board, it is directly connected with the NTC fixing support, and the connection is not reliable, so a reinforcing plate is needed to achieve indirect connection, which is the origin of the "reinforcing" in the "reinforcing FR4 plate 3" of the utility model. Through the reinforcing FR4 plate 3, the flexible circuit board can be reliably fixed on the NTC fixing support.

[0059] In one embodiment, the thermistor is a negative temperature coefficient thermistor, also known as NTC.

[0060] In one embodiment, when collecting temperature, the heat of the heat source structure is transmitted to the heat-conducting pad 6, the heat-conducting pad 6 transmits the heat to the reinforcing FR4 plate 3, and the negative temperature coefficient thermistor (NTC) collects the temperature of the reinforcing FR4 plate 3 through the FPC.

[0061] The other contents of the NTC fixing support and the temperature collection structure of the CCS according to the utility model are described in the prior art, which will not be repeated here.

[0062] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, which does not deviate from the technical solution content of the utility model, still belongs to the scope of the technical solution of the utility model.

Claims

1. A NTC fixing bracket of a CCS, characterized by, The bracket base is provided with a set region, and a profiling cavity for placing a reinforcing FR4 plate is formed on the set region.

2. The NTC fixing support of a CCS according to claim 1, characterized in that, The set region of the bracket base is further provided with a limiting block for limiting the reinforcing FR4 plate.

3. The NTC fixing support of a CCS according to claim 1, characterized in that, The first buckle is a strip-shaped limiting buckle, and the second buckle is a mushroom head airplane buckle.

4. The NTC fixing support of a CCS according to claim 2, characterized in that, The first buckle, the second buckle and the limiting block are all provided with a guide inclined surface.

5. The NTC fixation bracket of a CCS according to claim 1, wherein, The first buckle and the second buckle are both provided with a buckle avoiding groove.

6. The NTC fixation bracket of a CCS according to claim 1, wherein, The bracket base is further provided with a positioning hole for mounting the bracket base on a bottom integrated body.

7. A NTC fixing support for a CCS according to any one of claims 1 to 6, characterized in that, The bracket base is a square plate.

8. A temperature acquisition structure, characterized by, The CCS NTC fixing bracket comprises a bottom integrated body, a reinforcing FR4 plate, a circuit board, an aluminum bar, a heat-conducting pad and the bracket base of any one of claims 1 to 7.

9. The temperature acquisition structure of claim 8, wherein, The bracket base is provided on the bottom integrated body.

10. The temperature acquisition structure of claim 8, wherein, The reinforcing FR4 plate is connected with the circuit board, and the circuit board is provided with a thermistor for collecting temperature. The reinforcing FR4 plate is placed in the profiling cavity and limited by the first buckle and the second buckle. The aluminum bar is provided on the bottom integrated body. The bottom integrated body is provided with a through hole corresponding to the arrangement position of the opening. The heat-conducting pad is connected and fixed with the reinforcing FR4 plate through the through hole and the opening. The heat-conducting pad is used for connecting with a structure to be collected temperature. The bottom integrated body is a plastic suction isolation plate or a hot-pressing film. The heat-conducting pad is fixedly attached with the reinforcing FR4 plate.

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