Battery pack PTC (Positive Temperature Coefficient) mounting structure

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) mounting structure of a battery pack. The PCT heater is mounted on the supporting plate; the heat conducting plate is connected with the supporting plate, the PCT heater makes contact with the heat conducting plate, and the PCT heater can transfer heat to the heat conducting plate; the heat conducting plate is attached to the battery pack; the heat conducting wing plate is mounted on the heat conducting plate; the mounting screws are arranged on the supporting plate, the supporting plate can be connected with the battery pack through the mounting screws, the PTC heater can be supported and prevented from being bent and broken in the PTC mounting process, the structure is safe and reliable, and mounting and maintenance are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of power batteries, and in particular relates to a PTC installation structure of a battery pack. Background Art

[0002] In the process of implementing the utility model, the inventor found that the prior art has at least the following problems:

[0003] When the battery pack is at low temperature, charging and discharging are not only inefficient, but also irreversibly damage the battery, causing capacity drop and serious safety hazards, so the battery pack needs to be equipped with a heating function. At present, the industry's liquid cooling mostly uses PTC integrated liquid cooling to heat the battery pack, and non-liquid cooling uses PTC heating at the bottom of the module, but it is impossible to take into account both liquid cooling and non-liquid cooling functions at the same time. Installing PTC at the bottom of non-liquid cooling is very cumbersome and has a very high defect rate (the wiring harness is easily broken during the flipping process). How to solve the installation problem of PTC heating when it is common at the bottom of liquid-cooled and non-liquid-cooled battery packs is an urgent problem that needs to be solved.

[0004] CN113895204A - A battery pack thermal management system, a vehicle and a battery pack thermal management method, discloses a battery pack thermal management system, a vehicle and a battery pack thermal management method, the battery pack thermal management system includes: a heat exchanger, the heat exchanger can exchange heat with the battery pack; a first pipeline, the first pipeline is connected to the first end of the heat exchanger; a second pipeline, the second pipeline is connected to the second end of the heat exchanger; wherein the second end is the opposite end of the first end; a PTC heat treatment device, the two ends of the PTC heat treatment device are respectively connected to the first pipeline and the second pipeline; it also cannot solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a battery pack PTC installation structure, which can support the PTC heater during PTC installation and prevent the PTC heater from bending and breaking, and has a safe and reliable structure and is easy to install and maintain.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a battery pack PTC installation structure having:

[0007] Support plate;

[0008] A PCT heater mounted on the support plate;

[0009] A heat conducting plate connected to the support plate, the PCT heater contacts the heat conducting plate, and the PCT heater can transfer heat to the heat conducting plate; the heat conducting plate is attached to the battery pack;

[0010] A heat conducting wing plate, mounted on the heat conducting plate;

[0011] The mounting screws are arranged on the support plate, and the support plate can be connected to the battery pack through the mounting screws.

[0012] The support plate is provided with a groove, and the PCT heater is installed in the groove.

[0013] The heat conducting plate is provided with support bosses in contact with the PCT heater, and the support bosses can cooperate with the support plate to clamp the PCT heater.

[0014] The heat conducting plate is provided with positioning pins, and the support plate is provided with positioning holes adapted to the positioning pins.

[0015] There is also a reinforcing plate, and the reinforcing plate is arranged on the heat conducting plate.

[0016] The support plate is provided with a series of weight-reducing holes.

[0017] One of the above technical solutions has the following advantages or beneficial effects. During the installation of the PTC, it can support the PCT heater, prevent the PCT heater from being bent and broken, the structure is safe and reliable, and the installation and maintenance are convenient. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the PTC installation structure of the battery pack provided in the embodiment of the present invention;

[0019] Figure 2 It is Figure 1 the schematic structural diagram of the PTC installation structure of;

[0020] Figure 3 It is Figure 1 the schematic structural diagram of the PTC installation structure of;

[0021] Figure 4 It is Figure 1 the schematic structural diagram of the PTC installation structure of;

[0022] Figure 5 It is Figure 1 the schematic structural diagram of the PTC installation structure of;

[0023] Figure 6 It is Figure 1 the schematic structural diagram of the PTC installation structure of;

[0024] The markings in the above figures are all: 1, support plate; 11, weight-reducing holes; 2, PCT heater; 3, circuit; 4, heat conducting plate; 41, support bosses; 42, heat conducting wing plates; 43, positioning pins; 5, reinforcing plate; 6, mounting screws. Detailed Embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figures 1 to 6 , a battery pack PTC installation structure, having:

[0027] A support plate 1; a PCT heater 2, installed on the support plate 1; the support plate 1 serves to support the PCT heater 2, and during the installation process of the PCT heater 2, it can prevent the PTC heater from being bent and broken, with a safe and reliable structure and convenient installation and maintenance. A heat conduction plate 4, connected to the support plate 1, the PCT heater 2 is in contact with the heat conduction plate 4, and the PCT heater 2 can transfer heat to the heat conduction plate 4; the heat conduction plate 4 is attached to the battery pack; a heat conduction wing plate 42, installed on the heat conduction plate 4; the heat conduction plate 4 and the heat conduction wing plate 42 can better absorb the heat of the PCT heater 2 and transfer the heat to the battery pack, improving the battery charge and discharge efficiency.

[0028] Mounting screws 6 are provided on the support plate 1, and the support plate 1 can be connected to the battery pack through the mounting screws 6. It serves to mount the support plate 1 and the PCT heater 2 on the battery pack.

[0029] The support plate 1 is provided with a groove, and the PCT heater 2 is installed in the groove, serving to accommodate the PCT heater 2.

[0030] The heat conduction plate 4 is provided with a support boss 41 in contact with the PCT heater 2, and the support boss 41 can cooperate with the support plate 1 to clamp the PCT heater 2, serving to position the PCT heater 2.

[0031] The heat conduction plate 4 is provided with a positioning pin 43, and the support plate 1 is provided with a positioning hole adapted to the positioning pin 43 to realize the functions of the heat conduction plate 4 and the positioning pin 43.

[0032] There is also a reinforcing plate 5, which is arranged on the heat conduction plate 4, serving to strengthen the structure. Prevent the PTC heater from being bent and broken, with a safe and reliable structure and convenient installation and maintenance.

[0033] The support plate 1 is provided with a series of weight reduction holes 11, serving to reduce the weight.

[0034] After adopting the above structure, during PTC installation, it can support the PTC heater, prevent the PTC heater from being bent and broken, with a safe and reliable structure and convenient installation and maintenance.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0036] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A battery pack PTC installation structure, characterized in that: have: Support plate; A PCT heater mounted on the support plate; A heat conducting plate connected to the support plate, the PCT heater contacts the heat conducting plate, and the PCT heater can transfer heat to the heat conducting plate; the heat conducting plate is attached to the battery pack; A heat conducting wing plate, mounted on the heat conducting plate; The mounting screws are arranged on the support plate, and the support plate can be connected to the battery pack through the mounting screws.

2. The battery pack PTC mounting structure according to claim 1, characterized in that: The support plate is provided with a groove, and the PCT heater is installed in the groove.

3. The battery pack PTC mounting structure according to claim 2, characterized in that: The heat conducting plate is provided with a supporting boss in contact with the PCT heater, and the supporting boss can cooperate with the supporting plate to clamp the PCT heater.

4. The battery pack PTC mounting structure according to claim 3, characterized in that: The heat conducting plate is provided with a positioning pin, and the supporting plate is provided with a positioning hole matched with the positioning pin.

5. The battery pack PTC mounting structure according to claim 4, characterized in that: A reinforcing plate is also provided, and the reinforcing plate is arranged on the heat conducting plate.

6. The battery pack PTC mounting structure according to claim 5, characterized in that: A series of weight-reducing holes are arranged on the support plate.

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