Integrated busbar pre-embedded temperature acquisition component and installation structure

Abstract

The utility model discloses an integrated busbar pre-embedded temperature acquisition component and an installation structure. The integrated busbar pre-embedded temperature acquisition component comprises an NTC resistor, a temperature sensing FPC and foam, the temperature sensing FPC and the NTC resistor are sequentially installed on the surface of one side of the foam, the temperature sensing FPC is connected with the NTC resistor, the surface of the other side of the foam is used for being installed on an integrated busbar, and the NTC resistor is used for being in direct contact with the surface of a battery cell. The upper surface of the foam is adhered to the upper surface of the blister base plate of the integrated busbar, the temperature sensing FPC and the NTC resistor are sequentially adhered to the lower surface of the foam, and the integrated busbar is mounted on the battery cell, so that the foam is compressed, the NTC resistor on the lower surface of the foam is in direct contact with the surface of the battery cell, the preassembling of the temperature acquisition component is realized, an additional dispensing process is not needed, the positioning is accurate, and the production efficiency is improved. The cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically to an integrated busbar embedded temperature acquisition component and an installation structure. Background Art

[0002] The arrangement of temperature sensors in battery modules often does not closely adhere to the surface to be detected, making it difficult to reflect the authenticity and accuracy of the temperature signals collected by the temperature sensors. Specifically, in the existing technology, most temperature sensors are arranged on aluminum busbars. The temperature of the battery is conducted to the nickel sheet through the aluminum busbar and then transferred to the NTC resistor through thermal conductive glue. In this path, heat is conducted through different media, resulting in disadvantages such as temperature sampling deviation and slowed thermal response time. At the same time, there are also disadvantages in the temperature acquisition design and arrangement, such as inaccurate positioning, complex fixing procedures, and easy detachment of thermal conductive glue; the dispensing fixing process is complex, expensive, has inaccurate positioning, and is difficult to repair. Summary of the Utility Model

[0003] In order to solve the deficiencies of the above technical solutions, the purpose of the present utility model is to provide an integrated busbar embedded temperature acquisition component.

[0004] Another purpose of the present invention is to provide an installation structure.

[0005] The purpose of the present utility model is achieved through the following technical solutions.

[0006] An integrated busbar embedded temperature acquisition component includes an NTC resistor, a temperature sensing FPC, and a foam. The temperature sensing FPC and the NTC resistor are sequentially installed on one side surface of the foam. The temperature sensing FPC is connected to the NTC resistor. The other side surface of the foam is used for installation on the integrated busbar. The NTC resistor is used to directly contact the surface of the battery cell.

[0007] In the above technical solution, the compression amount of the foam is 20%-30%.

[0008] In the above technical solution, the foam is polyurethane foam, PU foam, or CR foam.

[0009] In the above technical solution, colloids are applied on the surfaces of opposite sides of the foam. One side surface adhesively bonds the temperature sensing FPC and the NTC resistor in sequence, and the other side surface is used for adhesively bonding the integrated busbar.

[0010] An installation structure includes the integrated busbar embedded temperature acquisition component described above. The upper surface of the foam of the integrated busbar embedded temperature acquisition component is adhesively bonded to the blister chassis of the integrated busbar. A through hole is opened in the blister chassis. The temperature sensing FPC passes through the through hole from below the blister chassis and is connected to a temperature collector. The integrated busbar is installed on the battery cell, and the NTC resistor is closely attached to the surface of the battery cell.

[0011] The advantages and beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model directly contacts the NTC resistor with the surface of the battery cell to collect the temperature of the battery cell, shortening the conduction path, reducing the transmission medium, and achieving the purpose of reducing the temperature deviation.

[0013] 2. The present utility model pastes the upper surface of the foam on the plastic suction chassis of the integrated busbar, and sequentially bonds the temperature-sensitive FPC and the NTC resistor on the lower surface. By installing the integrated busbar on the battery cell, the foam is compressed, and the NTC resistor on its lower surface directly contacts the surface of the battery cell, realizing the pre-installation of the temperature acquisition component, without the need for additional dispensing process, with accurate positioning, increased efficiency and reduced cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the temperature acquisition component of Embodiment 1.

[0015] Figure 2 It is a schematic structural diagram of the temperature acquisition component of Embodiment 1.

[0016] Figure 3 It is a schematic upper surface structural diagram of the installation structure of Embodiment 2.

[0017] Figure 4 It is a schematic lower surface structural diagram of the installation structure of Embodiment 2.

[0018] Among them, 1: NTC resistor, 2: temperature-sensitive FPC, 3: foam, 4: plastic suction chassis, 5: through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solution of the present utility model will be further described below in conjunction with specific embodiments.

[0020] Embodiment 1

[0021] As Figures 1 - 2 shown, an integrated busbar embedded temperature acquisition component includes an NTC resistor 1, a temperature-sensitive FPC 2 and a foam 3. The temperature-sensitive FPC 2 is bonded to the lower surface of the foam 3, the NTC resistor 1 is bonded to the lower surface of the temperature-sensitive FPC 2, the upper surface of the foam 3 is used for bonding to the integrated busbar, the lower surface of the foam 3 is used for contacting the battery cell, so that the NTC resistor 1 is in direct contact with the battery cell, the compression amount of the foam 3 is 20%-30%, and the foam 3 is polyurethane foam, PU foam or CR foam.

[0022] Embodiment 2

[0023] As Figures 3 - 4As shown in the figure, this embodiment provides an installation structure, which includes the integrated busbar embedded temperature acquisition component described in Embodiment 1. The upper surface of the foam 3 of the integrated busbar embedded temperature acquisition component is adhesively bonded to the blister chassis 4 of the integrated busbar. A through hole 5 is opened on the blister chassis 4, and the temperature sensing FPC 2 passes through the through hole 5 from below the blister chassis 4 and is connected to the temperature collector. The integrated busbar is installed on the battery cell, and its lower surface is in contact with the surface of the battery cell. The foam 3 is compressed, and the NTC resistor 1 is in direct contact with the battery cell.

[0024] The installation process of the installation structure is as follows:

[0025] Apply a colloid on the foam 3 in advance, adhesively bond the upper surface of the foam 3 to the blister chassis 4 of the integrated busbar, and integrate the integrated busbar on the cover plate of the battery cell. At the same time, the foam 3 located on the lower surface of the blister chassis 4 of the integrated busbar is compressed, and the NTC resistor 1 located on the lower surface of the foam 3 is pressed against the surface of the battery cell through the extrusion of the foam 3. This method can ensure the integrated molding and installation of the temperature acquisition component and the integrated busbar without additional fixing procedures. When the foam 3 is compressed during installation, the NTC resistor 1 is closely attached to the surface of the battery cell, so that the temperature of the battery cell can be directly collected.

[0026] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "below" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0027] Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0028] The above is an exemplary description of the present invention. It should be noted that without departing from the core of the present invention, any simple deformation, modification, or equivalent replacement that can be made by those skilled in the art without creative labor falls within the protection scope of the present invention.

Claims

1. An integrated busbar embedded temperature collection component, characterized in that: It includes an NTC resistor, a temperature-sensitive FPC and foam. The temperature-sensitive FPC and the NTC resistor are sequentially installed on one side surface of the foam. The temperature-sensitive FPC is connected to the NTC resistor. The other side surface of the foam is used to be installed on an integrated busbar, and the NTC resistor is used to directly contact the surface of the battery cell.

2. The integrated busbar pre-buried temperature collection component according to claim 1 is characterized in that: The compression amount of the foam is 20%-30%.

3. The integrated busbar pre-buried temperature collection component according to claim 1 is characterized in that: The foam is polyurethane foam, PU foam or CR foam.

4. The integrated busbar pre-buried temperature collection component according to claim 1 is characterized in that: Colloid is applied on the surfaces of the two opposite sides of the foam, the temperature-sensitive FPC and the NTC resistor are sequentially bonded to the surface of one side, and the integrated busbar is bonded to the surface of the other side.

5. A mounting structure, characterized in that: It comprises the integrated busbar pre-embedded temperature collection component according to any one of claims 1 to 4, the foam upper surface of the integrated busbar pre-embedded temperature collection component is bonded to the blister chassis of the integrated busbar, a through hole is opened on the blister chassis, the temperature sensing FPC passes through the through hole from the bottom of the blister chassis and is connected to the temperature collector, the integrated busbar is installed on the battery cell, and the NTC resistor is closely attached to the surface of the battery cell.

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