CN211376865U - Flexible printed circuit board assembly for sampling of power battery module - Google Patents
Flexible printed circuit board assembly for sampling of power battery module Download PDFInfo
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- CN211376865U CN211376865U CN202020161331.4U CN202020161331U CN211376865U CN 211376865 U CN211376865 U CN 211376865U CN 202020161331 U CN202020161331 U CN 202020161331U CN 211376865 U CN211376865 U CN 211376865U
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- main body
- sampling
- battery module
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a flexible printed circuit board component for sampling of a power battery module, which comprises a FPC main body; one end or the left end and the right end of the front surface of the FPC main body are respectively attached with a connector; a reinforcing plate is arranged on the back surface of the FPC main body at a position corresponding to each connector; two voltage temperature sampling nickel sheets and a plurality of voltage sampling nickel sheets are attached to the front surface of the FPC main body at intervals; the FPC main body is provided with slots at positions close to the voltage sampling nickel sheet and the voltage temperature sampling nickel sheet; double-sided adhesive tape is bonded on the back of the FPC main body; one end of the voltage temperature sampling nickel sheet close to the FPC main body is provided with a rectangular groove; a thermistor is arranged in the center of the rectangular groove; the thermistor is attached to the front surface of the FPC main body. The utility model discloses structural design science can bear because of the long-term cyclic utilization back length direction's that appears expansion phenomenon of battery module to the vibration-resistant ability is strong.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a flexible printed circuit board assembly is used in sampling of power battery module.
Background
At present, along with the popularization of electric automobiles, the usage amount of power batteries is larger and larger. In the most core part battery module of power battery package, the voltage of battery, the collection of temperature signal play the key effect to the normal work of battery package.
The voltage and temperature sampling of the traditional battery module is carried out through wiring harness collection, but the wiring harness is complex to install, wiring errors or mutual friction between wires can occur, and further potential safety hazards exist. Therefore, in the battery module, an FPC (flexible printed circuit) is increasingly used to collect a voltage and a temperature signal of the battery.
In view of the tendency of expansion of the battery during the long-term cycle use of the battery module, the welding position of the flexible printed circuit FPC and the battery is changed, and the welding position is possibly damaged by stress. To deal with this problem, the common design schemes at present are: the metal wires are bonded or the wings are extended out of the main body of the FPC, so that the FPC can bear certain deformation. However, the wire bonding method has poor vibration resistance, and the wings extend out of the FPC main body, which increases the width of the FPC, increases the cost, occupies a space of the bus bar, and prevents the bus bar from being designed with a sufficient width, thereby affecting the overcurrent capacity of the bus bar.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flexible printed circuit board subassembly is used in sampling of power battery module to the technical defect that prior art exists.
Therefore, the utility model provides a flexible printed circuit board assembly for sampling of a power battery module, which comprises a FPC main body;
one end or the left end and the right end of the front surface of the FPC main body are respectively attached with a connector, and the requirements of the module are specifically met;
a reinforcing plate is arranged on the back surface of the FPC main body at a position corresponding to each connector;
two voltage temperature sampling nickel sheets and a plurality of voltage sampling nickel sheets are attached to the front surface of the FPC main body at intervals; the number of the voltage sampling nickel sheets is determined by the number of the battery modules connected in series.
Double-sided adhesive tape is bonded on the back of the FPC main body;
one end of the voltage temperature sampling nickel sheet close to the FPC main body is provided with a rectangular groove;
a thermistor is arranged in the center of the rectangular groove;
the thermistor is attached to the front surface of the FPC main body.
Wherein, the left and right sides of the rectangular groove are respectively provided with an inverted L-shaped pressure-proof wall.
Wherein, the surface of the thermistor is covered with heat-conducting glue.
Wherein, the heat-conducting glue is flexible glue.
The FPC main body is provided with grooves at positions close to the voltage sampling nickel sheet and the voltage temperature sampling nickel sheet. The shape of the slot is a spoon shape, the direction of the slot faces to the center of the FPC body in the width direction, namely the opening direction of the slot on the left side of the center line of the FPC body in the width direction faces to the right, and the opening direction of the slot on the right side of the center line of the FPC body in the width direction faces to the left.
Wherein, the root of the slot is provided with an arc part.
Wherein, FPC main part is provided with a plurality of location fixed orificess that link up in its thickness direction.
Wherein, on every stiffening plate, have a plurality of draw-in grooves of interval distribution respectively, the draw-in groove quantity is according to the structural dimension design, generally is two or three, and every draw-in groove is for lining up the setting in the thickness direction of stiffening plate.
By above the utility model provides a technical scheme is visible, compares with prior art, the utility model provides a flexible printed circuit board subassembly is used in sampling of power battery module, its structural design science can bear because of the battery module length direction's that appears after the long-term cyclic use expansion phenomenon, and the width is narrow, is favorable to releasing the width space of busbar to vibration-resistant ability is strong, and the installation effectiveness is high, has great production practice meaning.
Drawings
Fig. 1 is a schematic front view of a flexible printed circuit board assembly for sampling of a power battery module according to the present invention, which is flattened;
fig. 2 is a schematic back view of a sampling flexible printed circuit board assembly of a power battery module according to the present invention, which is flattened;
fig. 3 is a schematic front view of a voltage temperature sampling nickel sheet of a flexible printed circuit board assembly for sampling of a power battery module according to the present invention;
fig. 4 is an upper side schematic view (i.e., a top schematic view) of a voltage and temperature sampling nickel sheet of the flexible printed circuit board assembly for sampling of a power battery module according to the present invention;
fig. 5 is a schematic front view of a flexible printed circuit board assembly for sampling of a power battery module according to the present invention in an assembled state;
fig. 6 is a schematic top side view (i.e., a schematic top view) of a flexible printed circuit board assembly for sampling of a power battery module according to the present invention in an assembled state;
in the figure, 1 is a connector, 2 is an FPC main body, 3 is a voltage sampling nickel sheet, 4 is a voltage temperature sampling nickel sheet, and 5 is a reinforcing plate;
6 is double-sided adhesive tape, and 7 is thermistor NTC;
21 is a slot, 22 is a positioning fixing hole, 41 is a pressure-proof wall, and 51 is a clamping groove. 211 is a circular arc portion.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 6, the utility model provides a flexible printed circuit board assembly for sampling of a power battery module, which comprises an FPC main body 2;
the left end and the right end of the front surface of the FPC main body 2 are respectively attached with a connector 1;
a reinforcing plate 5 is arranged on the back surface of the FPC main body 2 at a position corresponding to each connector 1; that is, the FPC main body 2 is provided at an interval between the connector 1 and the reinforcing plate 5;
the utility model discloses in, on specifically realizing, the thickness of stiffening plate 5 is 1.6mm, and its material is FR4 panel to can guarantee the intensity of this position and the demand of the contact pin degree of depth of connector.
The utility model discloses in, on specifically realizing, the battery series number in the battery module is 6 strings, FPC main part 2's front, and the interval subsides are equipped with two voltage temperature sampling nickel pieces 4 and five voltage sampling nickel pieces 3. The thickness of the voltage sampling nickel sheet 3 and the thickness of the voltage temperature sampling nickel sheet 4 are both 0.3 mm.
The utility model discloses in, on specifically realizing, the back of FPC main part 2 bonds and has double faced adhesive tape 6 for fixed FPC main part 2.
In the utility model, in the concrete implementation, the voltage temperature sampling nickel sheet 4 is close to one end of the FPC main body 2, and the opening is provided with a rectangular groove 41;
the thermistor NTC7 is arranged at the center of the rectangular groove 41;
the thermistor NTC7 is attached to the front surface of the FPC main body 2;
the rectangular groove 41 is a rectangular groove penetrating in the thickness direction of the voltage temperature sampling nickel plate 4.
In concrete implementation, the left side and the right side of the rectangular groove 41 are respectively provided with an inverted L-shaped pressure-proof wall 42 for preventing the thermistor NTC7 from being pressed.
In a specific implementation, the size of the rectangular groove 41 is 6mm by 5 mm. The thermistor NTC7 has dimensions of 1.6mm in length, 0.8mm in width and 1.0mm in maximum height, and the pressure-proof wall 42 has a height of 1.3 mm.
Specifically, the surface of the thermistor NTC7 is covered with heat-conducting glue 8;
the heat conducting glue 8 completely fills the rectangular groove 41 and contacts with the voltage temperature sampling nickel sheet 4, so that the heat of the voltage temperature sampling nickel sheet 4 is conducted to the thermistor NTC7, and the heat conducting effect can be ensured.
In particular, the heat-conducting glue 8 is a soft glue with certain elasticity.
The utility model discloses in, on specifically realizing, FPC main part 2 all is provided with fluting 21 in the position that is close to voltage sampling nickel piece 3 and voltage temperature sampling nickel piece 4.
In the concrete implementation, the slot 21 is in the shape of a spoon, and the direction of the spoon faces the center of the FPC main body in the width direction, that is, the opening direction of the slot 21 on the left side of the center line of the FPC main body in the width direction faces right, and the opening direction of the slot 21 on the right side of the center line of the FPC main body in the width direction faces left, so that the nickel piece mounting position can bear outward deformation under the condition that the module expands outward in the length direction in the long-term recycling process.
In the concrete implementation, the width of the slot 21 is 1mm, and the root of the slot 21 is provided with an arc part 211 to prevent the slot from being torn by stress. Wherein, the radius of the circular arc portion 211 is 1 mm.
In the present invention, in a specific implementation, the FPC main body 2 is provided with a plurality of (not limited to three as shown in fig. 5) positioning fixing holes 22 penetrating in the thickness direction thereof;
when three positioning fixing holes 22 are included, one positioning fixing hole 22 is a circular hole, and the diameter of the hole is 3.5 mm; the other two positioning and fixing holes 22 are oblong holes with the size of 4.5mm by 3.5 mm.
It should be noted that, to the utility model discloses, when the assembly, location fixed orifices 22 is used for and is located the division board of outside battery module on corresponding reference column and cooperatees, reaches the effect of location FPC main part 2, the reference column can play the effect of fixed FPC main part 2 behind the hot melt.
The utility model discloses in, on specifically realizing, on every stiffening plate 5, have interval distribution's three draw-in groove 51 respectively, every draw-in groove 51 sets up for lining up at the thickness direction of stiffening plate 5.
It should be noted that, to the utility model discloses, when the assembly, after the FPC main part is buckled, draw-in groove 51 with be located the buckle assembly on the division board of outside battery module to reach the effect of fixed connector 1.
To sum up, compare with prior art, the utility model provides a pair of flexible printed circuit board subassembly is used in sampling of power battery module, its structural design science can bear because of the battery module long-term cycle uses the length direction's that appears the inflation phenomenon after, and the width is narrow, is favorable to releasing the width space of busbar to vibration-resistant ability is strong, and the installation effectiveness is high, has great production practice meaning.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A flexible printed circuit board assembly for sampling of a power battery module is characterized by comprising an FPC main body (2);
one end or the left end and the right end of the front surface of the FPC main body (2) are respectively attached with a connector assembly (1);
a reinforcing plate (5) is arranged on the back surface of the FPC main body (2) at a position corresponding to each connector (1);
two voltage temperature sampling nickel sheets (4) and a plurality of voltage sampling nickel sheets (3) are attached to the front surface of the FPC main body (2) at intervals;
a double-sided adhesive tape (6) is bonded on the back surface of the FPC main body (2);
one end of the voltage temperature sampling nickel sheet (4) close to the FPC main body (2) is provided with a rectangular groove (41) at an opening;
a thermistor (7) is arranged at the center of the rectangular groove (41);
the thermistor (7) is attached to the front surface of the FPC main body (2).
2. The flexible printed circuit board assembly for sampling of power battery module as set forth in claim 1, wherein the rectangular groove (41) is provided at its left and right sides with inverted "L" shaped pressure-proof walls (42), respectively.
3. The flexible printed circuit board assembly for sampling of power battery module as set forth in claim 1, wherein the surface of the thermistor (7) is covered with a thermally conductive adhesive (8).
4. The flexible printed circuit board assembly for sampling of power battery module as set forth in claim 3, wherein the heat conductive glue (8) is a soft glue having elasticity.
5. The flexible printed circuit board assembly for sampling of a power battery module according to claim 1, wherein the FPC body (2) is provided with a slot (21) at a position close to both the voltage sampling nickel plate (3) and the voltage temperature sampling nickel plate (4);
the shape of the open slot (21) is 'spoon' shape, the direction of the open slot faces to the center of the FPC body in the width direction, namely the opening direction of the open slot (21) on the left side of the center line of the FPC body in the width direction faces to the right, and the opening direction of the open slot (21) on the right side of the center line of the FPC body in the width direction faces to the left.
6. The flexible printed circuit board assembly for sampling of power battery module as set forth in claim 5, wherein the root of the slot (21) is provided with a circular arc portion (211).
7. The flexible printed circuit board assembly for sampling of power battery module as set forth in claim 1, wherein the FPC main body (2) is provided with a plurality of positioning fixing holes (22) penetrating in the thickness direction thereof.
8. The flexible printed circuit board assembly for sampling of a power battery module according to claim 1, wherein each reinforcing plate (5) has a plurality of slots (51) spaced apart from each other, and each slot (51) is provided to penetrate in a thickness direction of the reinforcing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161331.4U CN211376865U (en) | 2020-02-11 | 2020-02-11 | Flexible printed circuit board assembly for sampling of power battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161331.4U CN211376865U (en) | 2020-02-11 | 2020-02-11 | Flexible printed circuit board assembly for sampling of power battery module |
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| Publication Number | Publication Date |
|---|---|
| CN211376865U true CN211376865U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020161331.4U Active CN211376865U (en) | 2020-02-11 | 2020-02-11 | Flexible printed circuit board assembly for sampling of power battery module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022115995A1 (en) * | 2020-12-01 | 2022-06-09 | 东莞新能安科技有限公司 | Interconnection member, battery pack and electrical device |
| WO2023174285A1 (en) * | 2022-03-17 | 2023-09-21 | 浙江极氪智能科技有限公司 | Fpc collection apparatus, power battery and vehicle |
-
2020
- 2020-02-11 CN CN202020161331.4U patent/CN211376865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022115995A1 (en) * | 2020-12-01 | 2022-06-09 | 东莞新能安科技有限公司 | Interconnection member, battery pack and electrical device |
| WO2023174285A1 (en) * | 2022-03-17 | 2023-09-21 | 浙江极氪智能科技有限公司 | Fpc collection apparatus, power battery and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220120 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Binhai New Area Binhai high tech Industrial Development Zone Huayuan science and Technology Park (outer ring) 38 Haitai South Road Patentee before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. |
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| TR01 | Transfer of patent right |