NTC fixing support and temperature acquisition structure of single-film CCS

Abstract

The utility model discloses an NTC fixing support and temperature acquisition structure of a single-film CCS, comprising a support base body, a positioning hole is arranged at a set position on the support base body, and the positioning hole is used for positioning and installing the support base body on a lower insulating film; a cavity upper cover is arranged on the support base body, a cavity used for reinforcing placement of the FR4 plate is formed between the cavity upper cover and the support base body, and a buckle is arranged on the cavity upper cover and used for limiting and reinforcing the FR4 plate; a positioning column is arranged on the support base body and used for connecting aluminum bars. The NTC fixing support of the single-film CCS is simple in installation, reliable in fixation and high in efficiency when being integrated with other parts of a temperature acquisition structure, facilitates integration of the temperature acquisition structure, ensures normal integration of the temperature acquisition structure after hot pressing of an upper insulating film is canceled, and improves the reliability of the temperature acquisition structure. And the problem of poor temperature acquisition caused by poor fixation after the hot pressing of the upper insulating film is eliminated is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery module CCS product NTC fixed technical field, concretely relates to a single face film CCS's NTC fixed bolster and temperature acquisition structure. BACKGROUND

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

[0003] The temperature acquisition structure of the CCS is the core part of the battery cell state monitoring, and the accuracy of temperature acquisition plays a key role in safety performance. The temperature acquisition structure of the CCS includes various types, wherein the traditional hot-pressing scheme CCS, the reinforcing FR4 plate is limited through the pin on the NTC fixed bolster and the hot-pressing combination of the upper and lower insulating films. At present, with the continuous change of design, people gradually cancel the upper insulating film, and the single-face hot-pressing film CCS gradually becomes the design trend, therefore, the NTC fixed bolster structure of the traditional hot-pressing scheme CCS cannot effectively fix the reinforcing FR4 plate, so that the temperature acquisition point of the temperature acquisition structure cannot be limited and fixed in the XYZ three coordinate directions due to the lack of upper insulating film pressing.

[0004] At present, there is a lack of a single-face film CCS's NTC fixed bolster to facilitate the integration of the temperature acquisition structure. At present, there is a lack of a temperature acquisition structure with a new type of NTC fixed bolster to better realize the temperature acquisition function.

[0005] Therefore, a new technology is needed to solve the problem that there is a lack of a single-face film CCS's NTC fixed bolster in the prior art; a new technology is needed to solve the problem that there is a lack of a temperature acquisition structure with a new type of NTC fixed bolster in the prior art. Utility model content

[0006] To solve the above problems in the prior art, the utility model provides a single-face film CCS's NTC fixed bolster, which is simple to install, reliable to fix, efficient to integrate with other components of the temperature acquisition structure, and facilitates the integration of the temperature acquisition structure.

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

[0008] The utility model provides a single -sided film CCS's NTC fixed support, including support base body, be equipped with the positioning hole at the appointed position on the support base body, the positioning hole is used for the support base body positioning installation to the lower insulating film, be equipped with the upper cover of cavity on the support base body, form the cavity with the support base body interval for the cavity of reinforcing FR4 board settlement, the upper cover of cavity has the buckle on it, the buckle is used for the limiting reinforcing FR4 board, be equipped with the positioning column on the support base body, the positioning column is used for the connection of aluminium bar.

[0009] Further, the support base body is also provided with a buckle lower guide block, which is located below the buckle and is arranged adjacent to the cavity position, and the buckle lower guide block is used for guiding the disassembly and assembly of the reinforcing FR4 board.

[0010] Further, the support base body is also provided with a cavity guide block, which is located in the cavity, and the cavity guide block is used for guiding the disassembly and assembly of the reinforcing FR4 board.

[0011] Further, the cavity guide block facing the lower position is provided with a through hole corresponding to the upper cover of the cavity.

[0012] Further, the positioning column is provided with a plurality of positioning columns; the plurality of positioning columns are integrally injection molded with the support base body.

[0013] Further, the positioning hole is provided with at least two positioning holes; the plurality of positioning holes are arranged on the support base body, and the plurality of positioning holes are holes of different sizes.

[0014] Further, the buckle has a hook portion and an introduction portion; the introduction portion and the hook portion are connected together; and the hook portion is used for limiting the reinforcing FR4 board to separate from the cavity.

[0015] Further, the support base body is a special-shaped plate.

[0016] Another purpose of the utility model is to provide a temperature acquisition structure to better realize the temperature acquisition function.

[0017] A temperature acquisition structure, comprising a lower insulating film, a reinforcing FR4 board, a circuit board, an aluminum bar, a heat-conducting pad, and the NTC fixing support of a single-sided film CCS; the support base body is fixed on the lower insulating film through the positioning hole; the reinforcing FR4 board is connected with the circuit board, and the circuit board has a thermistor for temperature acquisition; the reinforcing FR4 board is arranged in the cavity and is limited by the buckle; the aluminum bar is connected with the support base body through the positioning column; the lower insulating film is provided with a film hole corresponding to the arrangement position of the cavity; the heat-conducting pad is connected and fixed with the reinforcing FR4 board through the film hole and the cavity; and the heat-conducting pad is used for connecting with a structure to be acquired.

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

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

[0020] The NTC fixing support of the single-sided film CCS of the utility model can be fixed on the lower insulating film through the positioning hole; after the NTC fixing support is fixed, the reinforcing FR4 plate can be connected with the cavity, and the aluminum bar can be connected with the positioning column, so that the normal integration of the temperature acquisition structure is ensured after the hot-pressing upper insulating film is cancelled, and the problem of poor temperature acquisition caused by poor fixation after the hot-pressing upper insulating film is cancelled is effectively avoided. The NTC fixing support of the utility model is simple to install, reliable in fixation, and efficient in integration with other components (the lower insulating film, the reinforcing FR4 plate and the aluminum bar) of the temperature acquisition structure, and the integration of the temperature acquisition structure is facilitated.

[0021] The temperature acquisition structure of the utility model is reliable in connection of each component, and the temperature acquisition function can be better realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] The technology of the utility model will be further described in detail below in combination with the drawings and specific embodiments:

[0023] Figure 1 is a perspective view of the NTC fixing support of the utility model in the first view angle;

[0024] Figure 2 is Figure 1 a schematic view of the cavity upper cover cut off a part of structure on the top (showing the cavity, the cavity guide block and the buckle lower guide block) (wherein the cavity is hollowed out downward of the support base body, so that the heat-conducting pad can be installed on the reinforcing FR4 plate);

[0025] Figure 3 is a perspective view of the NTC fixing support of the utility model in the second view angle;

[0026] Figure 4 is a top view of the NTC fixing support of the utility model;

[0027] Figure 5 is Figure 4 a sectional view at A-A;

[0028] Figure 6 is an explosion view of the temperature acquisition structure of the utility model;

[0029] Figure 7 is a schematic view of the temperature acquisition structure of the utility model after integration.

[0030] REFERENCE NUMERALS:

[0031] 1-NTC fixed support; 11-support base; 12-positioning hole; 13-cavity cover; 131-through hole; 14-cavity; 15-buckle; 151-hook; 152-introduction part; 16-positioning column; 161-first positioning column; 162-second positioning column; 17-buckle lower guide block; 18-cavity guide block; A-A-section mark;

[0032] 2-insulating film; 21-film hole;

[0033] 3-strengthening FR4 plate;

[0034] 4-circuit board;

[0035] 5-aluminum bar; 51-horizontal aluminum bar; 52-vertical aluminum bar;

[0036] 6-heat-conducting pad. DETAILED DESCRIPTION

[0037] The concept, specific structure and 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.

[0038] It should be noted that, unless otherwise specified, when a 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 other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0039] Referring to Figures 1 to 7 A single-sided film CCS NTC fixed support 1, comprising a support base 11, the support base 11 is provided with a positioning hole 12 at a predetermined position, the positioning hole 12 is used for positioning and installing the support base 11 on the lower insulating film 2; the support base 11 is provided with a cavity cover 13, the cavity cover 13 and the support base 11 form a cavity 14 for placing the reinforcing FR4 plate 3, the cavity cover 13 has a buckle 15, the buckle 15 is used for limiting the reinforcing FR4 plate 3; the support base 11 is provided with a positioning column 16, the positioning column 16 is used for connecting the aluminum bar 5.

[0040] Referring to Figures 1 to 7In one embodiment, the bracket base 11 is further provided with a buckle lower guide block 17, which is located below the buckle 15 and is arranged adjacent to the position of the cavity 14. The buckle lower guide block 17 is used to guide the FR4 plate 3 during disassembly and assembly.

[0041] Referring to Figures 1 to 7 In one embodiment, the bracket base 11 is further provided with a cavity guide block 18, which is located in the cavity 14. The cavity guide block 18 is used to guide the FR4 plate 3 during disassembly and assembly.

[0042] Referring to Figures 1 to 7 In one embodiment, the cavity guide block 18 facing the lower position is provided with a through hole 131 in the cavity upper cover 13. With the through hole 131, the bracket base 11, the cavity guide block 18, and the cavity upper cover 13 can be more conveniently integrally injection molded, effectively avoiding the increase of side extraction mold during production, thereby avoiding the increase of the production cost of the NTC fixing bracket 1.

[0043] Referring to Figures 1 to 7 In one embodiment, the positioning column 16 is provided with a plurality of positioning columns 16 integrally injection molded with the bracket base 11.

[0044] Referring to Figures 1 to 7 In one embodiment, the positioning hole 12 is provided with at least two positioning holes 12 arranged on the bracket base 11, and the plurality of positioning holes 12 are holes of different sizes. The bracket base 11 is a special-shaped plate (asymmetric structure). The plurality of positioning holes 12 are arranged as holes of different sizes, which can prevent workers from incorrectly installing the NTC fixing bracket after rotating it by 180°.

[0045] In another embodiment, the positioning hole is provided with at least two positioning holes arranged on the bracket base, and the plurality of positioning holes are holes of the same size or holes of different sizes. The bracket base is a symmetric structure. The plurality of positioning holes can be arranged as holes of the same size or holes of different sizes, and preferably, the plurality of positioning holes are arranged as holes of the same size.

[0046] Referring to Figures 1 to 7 In one embodiment, the buckle 15 is elastic, which can be conveniently adjusted by people, and is very helpful for people to disassemble the reinforcing FR4 plate 3 from the cavity 14.

[0047] Referring to Figures 1 to 7In one embodiment, the buckle 15 has a hook portion 151 and a guide portion 152; the guide portion 152 is connected with the hook portion 151 together; the hook portion 151 is used for limiting the separation of the reinforcing FR4 plate 3 from the cavity 14. Since the guide portion 152 is upwardly curved, it effectively avoids the obstruction to the reinforcing FR4 plate 3 when the reinforcing FR4 plate 3 is inserted into the cavity 14; also since the guide portion 152 is upwardly curved, when the reinforcing FR4 plate 3 in the cavity 14 needs to be taken out, one can push the guide portion 152 upward to release the limiting action of the hook portion 151 on the reinforcing FR4 plate 3, thus facilitating the taking out of the reinforcing FR4 plate 3.

[0048] With reference to Figures 1 to 7 Preferably, the buckle lower guide block 17 is provided with two; the cavity guide block 18 is provided with four, and the through hole 131 is provided with four correspondingly.

[0049] Another purpose of the utility model lies in providing a temperature acquisition structure to better realize the temperature acquisition function.

[0050] With reference to Figures 1 to 7The utility model relates to a temperature collection structure, including lower insulating film 2, reinforcing FR4 board 3, circuit board 4, aluminium bar 5, heat conduction pad 6 and one kind of single -sided film CCS's NTC fixed support 1, the support base body 11 is fixed on the lower insulating film 2 through the positioning hole 12, reinforcing FR4 board 3 is connected with circuit board 4, and the circuit board 4 has thermistor for collecting temperature, and reinforcing FR4 board 3 is settled in the cavity 14, and is limited by buckle 15, aluminium bar 5 is connected with the support base body 11 through the locating post 16, corresponding the arrangement position of the cavity 14, the lower insulating film 2 is equipped with film hole 21, heat conduction pad 6 is connected and fixed with reinforcing FR4 board 3 through the film hole 21, the cavity 14, and heat conduction pad 6 is used to be connected with the structure (such as heat source structure) of temperature to be collected, wherein, the temperature collection structure belongs to a component part of CCS (namely integrated busbar), and the temperature collection structure only has lower insulating film 2 (namely single -sided film), and this is also the reason why the utility model calls NTC fixed support 1 "one kind of single -sided film CCS's NTC fixed support", wherein, aluminium bar 5 is also called aluminium conductive sheet, wherein, reinforcing FR4 board 3 is limited in the cavity 14 through buckle 15, can effectively avoid that temperature collection structure produces displacement, and comes out in the process of taking, carrying, reinforcing FR4 board 3, similarly, also effectively avoids that reinforcing FR4 board 3 displacement, comes out after CCS is assembled to battery pack, effectively avoids the problem of temperature collection point (heat conduction pad 6) collection bad, wherein, the NTC fixed support 1 of the utility model is designed with special locating post 16, can strengthen the connection of NTC fixed support 1, can effectively avoid that lower insulating film 2 and NTC fixed support 1 are weak in combination force after hot pressing and produce displacement, effectively avoid the problem of temperature collection bad caused by NTC fixed support 1 displacement.

[0051] Referring to Figures 1 to 7 In one embodiment, the locating post 16 is provided with two first and second locating posts 161 and 162, and the aluminium bar 5 includes a horizontal aluminium bar 51 and a vertical aluminium bar 52, the horizontal aluminium bar 51 being connected with the first locating post 161, and the vertical aluminium bar 52 being connected with the second locating post 162.

[0052] Referring to Figures 1 to 7 In one embodiment, the heat conduction pad 6 is fixedly attached to the reinforcing FR4 board 3.

[0053] Referring to Figures 1 to 7In one embodiment, the circuit board 4 is a flexible circuit board, also known as FPC; the reinforcing FR4 board 3 is pasted and fixed with the flexible circuit board. Because the circuit board 4 is a flexible circuit board, it is directly connected with the NTC fixing support 1, and the connection is not reliable, so a reinforcing plate is needed to realize indirect connection, which is the origin of the "reinforcing" in the "reinforcing FR4 board 3" of the utility model. Through the reinforcing FR4 board 3, the flexible circuit board can be reliably fixed on the NTC fixing support 1.

[0054] In one embodiment, the thermistor is a negative temperature coefficient thermistor, also known as NTC.

[0055] 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 to the reinforcing FR4 board 3, and the negative temperature coefficient thermistor (NTC) collects the temperature of the reinforcing FR4 board 3 through the FPC.

[0056] Other contents of the NTC fixing support and the temperature collection structure of the single-sided film CCS of the utility model are referred to the prior art, and will not be repeated here.

[0057] 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 single-sided film CCS NTC fixing bracket, characterized in that, The bracket base is provided with positioning holes at the position for positioning and mounting the bracket base on the lower insulating film; the bracket base is provided with an upper cavity cover, and a cavity for placing the FR4 plate is formed between the upper cavity cover and the bracket base; the upper cavity cover is provided with a buckle for limiting the FR4 plate; the bracket base is provided with positioning columns for connecting the aluminum bar.

2. The NTC fixing bracket for single-sided film CCS according to claim 1, characterized in that, The bracket base is further provided with a buckle lower guide block below the buckle and adjacent to the cavity position, which is used for guiding the FR4 plate during disassembly and assembly.

3. The NTC fixing bracket of a single-sided film CCS according to claim 2, characterized in that, The bracket base is further provided with a cavity guide block in the cavity, which is used for guiding the FR4 plate during disassembly and assembly.

4. The NTC fixing bracket of a single-sided film CCS according to claim 3, characterized in that, The upper cavity cover is provided with a through hole corresponding to the cavity guide block.

5. The NTC fixing bracket for single-sided film CCS according to claim 1, characterized in that, The positioning column is provided with a plurality of positioning columns; the positioning column and the bracket base are integrally injection molded.

6. The NTC fixing bracket for single-sided film CCS according to claim 1, characterized in that, The positioning hole is provided with at least two positioning holes; a plurality of positioning holes are arranged on the bracket base, and the sizes of the positioning holes are different.

7. The NTC fixing bracket for single-sided film CCS according to claim 1, characterized in that, The buckle has a hook part and an introduction part; the introduction part and the hook part are connected together; the hook part is used for limiting the FR4 plate from the cavity.

8. The NTC fixing support of a single-sided film CCS according to any one of claims 1 to 7, characterized in that, The bracket base is a special-shaped plate.

9. A temperature acquisition structure, characterized by, The bracket base is fixed on the lower insulating film through the positioning hole; the FR4 plate is connected with the circuit board, and the circuit board is provided with a thermistor for collecting temperature; the FR4 plate is placed in the cavity and limited by the buckle; the aluminum bar is connected with the bracket base through the positioning column; the lower insulating film is provided with a film hole corresponding to the arrangement position of the cavity; the heat-conducting pad is connected and fixed with the FR4 plate through the film hole and the cavity; the heat-conducting pad is used for connecting with the structure to be collected.

10. The temperature acquisition structure of claim 9, wherein, The heat-conducting pad is fixedly connected with the FR4 plate.

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