Temperature and pressure collecting module with double fuses for ccs

Abstract

The utility model discloses a ccs temperature and pressure acquisition module with double fuses, which comprises a PCB and a temperature sensing resistor, the temperature sensing resistor is welded and fixed on the PCB, a voltage bonding pad is also fixed on the PCB, the voltage bonding pad is welded with a connecting wire, the connecting wire is installed on the PCB, and the temperature sensing resistor and the voltage bonding pad are fixed on the PCB. The connecting line is welded with the first fuse and the second fuse, and a nickel sheet is welded and fixed on the PCB. According to the temperature and pressure collecting module for the ccs with the added double fuses, multiple functions of the module are achieved through voltage collection and temperature collection, combination is achieved, the functions of pressure collection, temperature collection and fuses are achieved, the first process design route of battery cell safety is effectively achieved, in addition, due to module function integration, the overall cost can be obviously and greatly reduced, and the production cost is greatly reduced. And the arrangement of double fuses is adopted, that is, after one fuse is fused, the other fuse is soldered, and the whole module can be continuously used, so that the use cost of the device is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature and pressure sampling modules, in particular to a temperature and pressure sampling module for CCS with double fuses added. Background Art

[0002] The wiring harness version of CCS (CELL CONTACT SYSTEM) / IBB (integrated busbar for battery) collects the voltage and temperature of the battery cell and transmits them to the BMS. Since the wiring harness version is simple in composition, the basic composition is the collection end (nickel sheet collects voltage, wiring harness version NTC collects temperature changes) + wire + connector, and then connected to the BMS board end through the adapter harness. There is no fuse in the entire structure. Once the wiring is wrong or the adapter PIN position is wrong, it will cause the battery cell to short-circuit, causing the wiring harness to burn and even the battery cell to explode. In order to better protect the battery cell in the case of a short circuit, a CCS temperature and pressure collection module with double fuses is designed to better meet the actual use needs. Utility Model Content

[0003] The utility model aims to provide a temperature and pressure sampling module for CCS with double fuses added to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature and pressure sampling module for CCS with double fuses, including a PCB board and a temperature-sensitive resistor, the temperature-sensitive resistor is welded and fixed on the PCB board, a voltage pad is also fixed on the PCB board, the voltage pad and a connecting wire are welded to each other, the connecting wire is installed on the PCB board, the connecting wire and a first fuse and a second fuse are welded to each other, and a nickel sheet is also welded and fixed on the PCB board.

[0005] Preferably, the PCB board is provided with mounting holes, and the PCB board is also provided with positioning holes, and the mounting holes can be used together with bolts to facilitate installation and fixation of the entire device.

[0006] Preferably, the distance between the temperature sensing resistor and the voltage pad is 1.1 mm, and the distance between the temperature sensing resistor and the connecting wire is 1.1 mm. By limiting the distance between the temperature sensing resistor, the voltage pad and the connecting wire, mutual interference between the temperature sensing resistor, the voltage pad and the connecting wire can be avoided, thereby ensuring the normal operation of the device.

[0007] Preferably, the first fuse is also connected to a first connector, and the first connector is soldered to the nickel sheet. The first fuse can be used to protect the device from short circuits, thereby preventing the device from being damaged due to short circuits.

[0008] Preferably, the second fuse is also connected to a second connector, and the second fuse can be used as a backup fuse so that the entire device can be used normally after the first fuse is damaged.

[0009] Preferably, a protrusion is fixed on the lower end surface of the nickel sheet, and the protrusion and the positioning hole are nested. When the nickel sheet is assembled on the PCB board, the positioning of the nickel sheet can be achieved through the nesting effect between the protrusion and the positioning hole, which facilitates the installation of the nickel sheet.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the temperature and pressure sampling module for CCS with double fuses realizes the multi-function of the module by collecting voltage and temperature as a whole, and realizes the voltage and temperature sampling and fuse functions in combination, effectively realizing the process design route of battery cell safety first. In addition, due to the integration of module functions, the overall cost will be significantly reduced, and the cost of conventional wiring harness version will be reduced by at least 5%. In addition, the double fuse arrangement is adopted, that is, after one fuse is blown, the entire module can continue to be used as long as the other fuse is soldered, thereby effectively saving the use cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the exploded three-dimensional structure of the overall composition of the device of the utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of the device of the utility model;

[0013] Figure 3 It is a schematic diagram of the exploded three-dimensional structure when viewed from above of the overall composition of the device of the utility model.

[0014] In the figure: 1, PCB board; 101, mounting hole; 102, positioning hole; 2, temperature sensing resistor; 3, voltage pad; 4, connecting wire; 5, first fuse; 501, first connector; 6, second fuse; 601, second connector; 7, nickel sheet; 701, bump. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-Figure 3The utility model provides a technical solution: a temperature and pressure sampling module for CCS with double fuses, including a PCB board 1 and a temperature sensing resistor 2, the temperature sensing resistor 2 is welded and fixed on the PCB board 1, a voltage pad 3 is also fixed on the PCB board 1, the voltage pad 3 and a connecting wire 4 are welded to each other, the connecting wire 4 is installed on the PCB board 1, the connecting wire 4 and a first fuse 5 and a second fuse 6 are welded to each other, and a nickel sheet 7 is also welded and fixed on the PCB board 1.

[0017] A mounting hole 101 is provided on the PCB board 1, and a positioning hole 102 is also provided on the PCB board 1; the distance between the temperature-sensing resistor 2 and the voltage pad 3 is 1.1 mm, and the distance between the temperature-sensing resistor 2 and the connecting wire 4 is 1.1 mm; the first fuse 5 is also connected to a first connector 501, and the first connector 501 and the nickel sheet 7 are connected by soldering; the second fuse 6 is also connected to a second connector 601; a protrusion 701 is also fixed to the lower end surface of the nickel sheet 7, and the protrusion 701 and the positioning hole 102 are nested. When the nickel sheet 7 is welded and installed, the nickel sheet 7 and the PCB board 1 can be positioned by nesting the protrusion 701 and the positioning hole 102, which effectively avoids the nickel sheet 7 from being offset and ensures the accuracy of the installation position of the nickel sheet 7. After the entire module is welded, the module can be installed by bolts in conjunction with the mounting hole 101;

[0018] When using the CCS temperature and pressure sampling module with double fuses, if Figure 1-Figure 3 As shown, first the entire module is welded and assembled. At this time, the nickel sheet 7 is connected in series with the first connector 501, the first fuse 5 and the voltage pad 3, and the second connector 601 is separated from the first connector 501. In actual use, the temperature collection function can be realized through the temperature sensing resistor 2, and the voltage collection function can be realized through the nickel sheet 7. When the device is short-circuited, the abnormal temperature in the circuit rises, so that the first fuse 5 heats up sharply. When the temperature reaches the melting point of the first fuse 5, the first fuse 5 breaks, thereby realizing the protection of the entire module under the short-circuit state. After the circuit maintenance is completed in the later stage, the second connector 601 is welded with the first connector 501 and the nickel sheet 7, so that the second fuse 6 can replace the first fuse 5, thereby realizing the replacement of the fuse without replacing the entire device, thereby improving the convenience of module maintenance. This is the working principle of the temperature and voltage collection module for CCS with double fuses.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature and pressure sampling module for CCS with double fuses, comprising a PCB board (1) and a temperature sensing resistor (2), characterized in that: A temperature-sensitive resistor (2) is welded and fixed on the PCB board (1); a voltage pad (3) is also fixed on the PCB board (1); the voltage pad (3) and a connecting wire (4) are welded to each other; the connecting wire (4) is installed on the PCB board (1); the connecting wire (4) and a first fuse (5) and a second fuse (6) are welded to each other; and a nickel sheet (7) is also welded and fixed on the PCB board (1).

2. A temperature and pressure sampling module for CCS with double fuses according to claim 1, characterized in that: The PCB board (1) is provided with a mounting hole (101), and the PCB board (1) is also provided with a positioning hole (102).

3. A temperature and pressure sampling module for CCS with double fuses according to claim 1, characterized in that: The distance between the temperature-sensing resistor (2) and the voltage pad (3) is 1.1 mm, and the distance between the temperature-sensing resistor (2) and the connecting wire (4) is 1.1 mm.

4. A temperature and pressure sampling module for CCS with double fuses according to claim 1, characterized in that: The first fuse (5) is also connected to a first connector (501), and the first connector (501) is connected to the nickel sheet (7) by soldering.

5. The temperature and pressure sampling module for CCS with double fuses according to claim 1, characterized in that: The second fuse (6) is also connected to a second connector (601).

6. A temperature and pressure sampling module for CCS with double fuses according to claim 2, characterized in that: A protrusion (701) is also fixed on the lower end surface of the nickel sheet (7), and the protrusion (701) and the positioning hole (102) are nested and connected.

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