Battery pack electric appliance part cooling device

Abstract

According to the battery pack electric appliance part cooling device, in the device, a water cooling pipe assembly is installed on a box body assembly through a first installation hole, the water cooling pipe assembly comprises a water inlet and a water outlet, a heat conduction silica gel pad is attached to the upper surface of the water cooling pipe assembly, and a water cooling pipe supporting pad assembly is attached to the lower surface of the water cooling pipe assembly; the water-cooled tube supporting pad assembly, the water-cooled tube assembly and the heat-conducting silica gel pad are mounted in the box body assembly to form a module A; the second mounting holes are connected with the first connecting columns so that the supports can be mounted on the box body assembly and make heat conduction contact with the water cooling pipe assembly, the BMS main board is connected to the pair of supports through the first studs, and the BMS slave board is connected to the pair of supports through the second studs. The device improves the cooling performance.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a cooling device for electrical components of a battery pack. Background Art

[0002] The battery pack is an important part of new energy technology, providing energy and power for the storage of new energy vehicles. Electrical parts are an important link in the battery pack system and their role is irreplaceable. Since the copper busbars in the electrical parts have internal resistance, when the system is turned on, it will cause the electrical parts to heat up. If the heat is too high, it will affect the life of the electrical parts.

[0003] The above information disclosed in the background technology section is only used to enhance the understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0004] The utility model aims to provide a battery pack electrical parts cooling device, which effectively gathers the electrical parts on a box body through a bracket, thereby solving the problem of subsequent heat dissipation of the electrical parts affecting the life of the electrical parts.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery pack electrical parts cooling device of the utility model comprises:

[0007] A box assembly, comprising a plurality of support plates arrayed at the bottom of the box assembly, a plurality of first mounting holes distributed at both ends of the support plates, and a pair of first connecting columns and a second connecting column;

[0008] A water cooling pipe assembly is installed on the box assembly via a first mounting hole, and the water cooling pipe assembly includes a water inlet and a water outlet.

[0009] A thermally conductive silicone pad is attached to the upper surface of the water cooling pipe assembly.

[0010] A water-cooling pipe support pad assembly is attached to the lower surface of the water-cooling pipe assembly. The water-cooling pipe support pad assembly, the water-cooling pipe assembly and the thermal conductive silicone pad are installed in the box assembly to form module A;

[0011] A BDU assembly, which is connected to the module A via a second connecting column and is in thermal contact with the water cooling pipe assembly;

[0012] The BMS module assembly includes:

[0013] A pair of brackets comprising,

[0014] A stamped boss located at the bottom of the bracket,

[0015] A second mounting hole is located at the bottom of the bracket, and the second mounting hole is connected to the first connecting column to mount the bracket on the box assembly and to thermally contact the water cooling pipe assembly.

[0016] The first stud, which is located at the top of the bracket,

[0017] A second stud, which is located on the top of the bracket and below the first stud,

[0018] The BMS mainboard is connected to a pair of brackets via a first stud.

[0019] The BMS slave plate is connected to a pair of brackets via a second stud.

[0020] In the battery pack electrical parts cooling device, the support plate has positioning pins for positioning the battery module to be installed.

[0021] In the battery pack electrical parts cooling device, the water cooling pipe assembly includes a serpentine coil connecting a water inlet and a water outlet.

[0022] In the battery pack electrical parts cooling device, the bracket has a weight-reducing hole.

[0023] In the battery pack electrical parts cooling device, the bracket includes a horizontal bottom plate, a side wall extending vertically upward from one side of the horizontal bottom plate, and a horizontal top plate extending horizontally from the top end of the side wall.

[0024] In the battery pack electrical parts cooling device, the horizontal top plate is located above the horizontal bottom plate.

[0025] In the battery pack electrical parts cooling device, the horizontal bottom plate includes an upwardly protruding stamping boss and second mounting holes located at both ends of the stamping boss.

[0026] In the battery pack electrical parts cooling device, a vertical first stud is fixedly provided on the upper surface of the horizontal top plate and a vertical second stud is fixedly provided on the lower surface of the horizontal top plate.

[0027] In the battery pack electrical parts cooling device, the first stud and the second stud share a common central axis.

[0028] In the battery pack electrical parts cooling device, module A is a symmetrical structure.

[0029] In the above technical scheme, a battery pack electrical parts cooling device provided by the utility model has the following beneficial effects: the utility model effectively gathers the electrical parts on the box body through the bracket, solves the problem of subsequent heat dissipation of the electrical parts affecting the life of the electrical parts, and uses the water-cooling pipe assembly to not only dissipate the heat of the electrical parts but also cool the module, thereby improving the overall heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the structure of the battery pack electrical parts cooling device referred to in the utility model.

[0032] Figure 2 This is a schematic diagram of the box assembly referred to in the present utility model.

[0033] Figure 3 This is a partially enlarged structural schematic diagram of the module installation position on the box body referred to in the present invention.

[0034] Figure 4 This is a schematic diagram of the assembly structure of the cooling water pipe with zone cooling referred to in the utility model.

[0035] Figure 5 This is a schematic diagram of the sequence of installing the cooling water pipes referred to in the utility model into the box.

[0036] Figure 6 This is a schematic diagram of the structure of module A after the cooling water pipe of the utility model is installed in the box.

[0037] Figure 7 This is a schematic diagram of the support structure of the electrical parts referred to in the utility model.

[0038] Figure 8 This is a schematic diagram of module B of the electrical component including a bracket referred to in the present utility model.

[0039] Fig. 9 This is a schematic diagram of the assembly sequence of the box assemblies A and B referred to in the utility model. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] See also Figure 1-9 As shown, in one embodiment, a battery pack electrical parts cooling device of the utility model includes:

[0049] The box assembly 2 includes a plurality of support plates arrayed at the bottom of the box assembly 2 and a plurality of first mounting holes 2-2 distributed at both ends of the support plates, a pair of first connecting columns 2-3 and a second connecting column 2-4;

[0050] The water cooling pipe assembly 5 is installed on the box assembly 2 via the first installation hole 2-2. The water cooling pipe assembly 5 includes a water inlet 5-1 and a water outlet 5-2.

[0051] The thermally conductive silicone pad 1 is attached to the upper surface of the water cooling pipe assembly 5.

[0052] The water-cooling pipe support pad assembly 6 is attached to the lower surface of the water-cooling pipe assembly 5. The water-cooling pipe support pad assembly 6, the water-cooling pipe assembly 5 and the thermal conductive silicone pad 1 are installed in the box assembly 2 to form a module A;

[0053] A BDU assembly 4, which is connected to the module A via a second connecting column 2-4 and is in thermal contact with a water cooling pipe assembly 5;

[0054] BMS module assembly 3 includes:

[0055] A pair of brackets 7, comprising,

[0056] The stamping boss 7-1 is located at the bottom of the bracket 7.

[0057] The second mounting hole 7-2 is located at the bottom of the bracket 7. The second mounting hole 7-2 is connected to the first connecting column 2-3 to mount the bracket 7 on the box assembly 2 and to contact the water cooling pipe assembly 5 in a heat-conducting manner.

[0058] The first stud 7-3 is located at the top of the bracket 7,

[0059] The second stud 7-4 is located at the top of the bracket 7 and below the first stud 7-3,

[0060] The BMS main board 3-1 is connected to a pair of brackets 7 via first studs 7-3.

[0061] The BMS slave board 3 - 2 is connected to a pair of brackets 7 via second studs 7 - 4 .

[0062] In a preferred embodiment of the battery pack electrical parts cooling device, the support plate has positioning pins for positioning the battery module to be installed.

[0063] In a preferred embodiment of the battery pack electrical parts cooling device, the water cooling pipe assembly 5 includes a serpentine coil connecting the water inlet 5-1 and the water outlet 5-2.

[0064] In a preferred embodiment of the battery pack electrical parts cooling device, the bracket 7 has a weight-reducing hole.

[0065] In a preferred embodiment of the battery pack electrical parts cooling device, the bracket 7 includes a horizontal bottom plate, a side wall extending vertically upward from one side of the horizontal bottom plate, and a horizontal top plate extending horizontally from the top end of the side wall.

[0066] In a preferred embodiment of the battery pack electrical parts cooling device, the horizontal top plate is located above the horizontal bottom plate.

[0067] In a preferred embodiment of the battery pack electrical parts cooling device, the horizontal bottom plate includes an upwardly protruding stamping boss 7-1 and second mounting holes 7-2 located at both ends of the stamping boss 7-1.

[0068] In a preferred embodiment of the battery pack electrical parts cooling device, a vertical first stud 7-3 is fixedly provided on the upper surface of the horizontal top plate, and a vertical second stud 7-4 is fixedly provided on the lower surface of the horizontal top plate.

[0069] In a preferred embodiment of the battery pack electrical parts cooling device, the first stud 7-3 and the second stud 7-4 share a common central axis.

[0070] In a preferred embodiment of the battery pack electrical parts cooling device, module A is a symmetrical structure.

[0071] In one embodiment, the battery pack electrical parts cooling device includes a thermal conductive silicone pad 1, a box assembly 2, a BMS module assembly 3, a BDU assembly 4, a water cooling pipe assembly 5 and a water cooling pipe support pad assembly 6. Furthermore, a positioning pin 2-1 is designed on the box assembly 2 for positioning during the later module installation, and three groups of first mounting holes 2-2 in each area are used to install the module A, see Figure 2-3 ; At the same time, a first connecting column 2-3 and a second connecting column 2-4 are designed at the front of the box assembly 2, which are used to fix the subsequent BMS bracket assembly 3 and BDU assembly 4 respectively; further, Figure 4 The water-cooling pipe assembly 5 referred to in the present invention has a rear area a of the water-cooling pipe assembly used for cooling the module, and a front area b used for cooling electrical parts; the water inlet 5-1 of the water-cooling pipe assembly 5 and the water outlet 5-2 of the water-cooling pipe are used for the inflow and outflow of cooling liquid, and the heat of the entire system is transferred to the outside to achieve a cooling function; further, in order to achieve the support of the water-cooling pipe assembly 5, the present invention is designed with multiple groups of water-cooling pipe support pad assemblies 6 at the lower part of the water-cooling pipe assembly 5, and the water-cooling pipe support pad assembly 6, the water-cooling pipe assembly 5 and the thermal conductive structural adhesive 1 are first pasted into a whole, and then the whole is placed in the box assembly to form a module A, see Figure 6 ; In order to better integrate the BMS main board 3-1 and the BMS slave board 3-2 of the BMS module assembly 3, the utility model designs a special bracket 7, and a stamping boss 7-1 is designed at the bottom of the bracket 7 to increase the bottom strength, and two second mounting holes 7-2 at the bottom are used for connection and fixation with the first connecting column 2-3 on the front box assembly 2, and the upper and lower first studs 7-3 and second studs 7-4 are respectively used to fix the BMS main board 3-1 and the slave board 3-2, thereby forming a module B, see Figure 8 ; In order to achieve lightweight of the entire bracket 7, a weight-reducing hole 7-5 is also designed; by sequentially installing module B and BDU assembly 4 into module A from the Z direction, the area where the water-cooling pipe contacts the electrical parts can achieve cooling of the electrical parts, thereby increasing the life of the electrical parts.

[0072] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0073] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A battery pack electrical parts cooling device, characterized in that: These include, A box assembly, comprising a plurality of support plates arrayed at the bottom of the box assembly, a plurality of first mounting holes distributed at both ends of the support plates, and a pair of first connecting columns and a second connecting column; A water cooling pipe assembly is installed on the box assembly via a first mounting hole, and the water cooling pipe assembly includes a water inlet and a water outlet. A thermally conductive silicone pad is attached to the upper surface of the water cooling pipe assembly. A water-cooling pipe support pad assembly is attached to the lower surface of the water-cooling pipe assembly. The water-cooling pipe support pad assembly, the water-cooling pipe assembly and the thermal conductive silicone pad are installed in the box assembly to form module A; A BDU assembly, which is connected to the module A via a second connecting column and is in thermal contact with the water cooling pipe assembly; The BMS module assembly includes: A pair of brackets comprising, A stamped boss located at the bottom of the bracket, A second mounting hole is located at the bottom of the bracket, and the second mounting hole is connected to the first connecting column to mount the bracket on the box assembly and to thermally contact the water cooling pipe assembly. The first stud, which is located at the top of the bracket, A second stud, which is located on the top of the bracket and below the first stud, The BMS mainboard is connected to a pair of brackets via a first stud. The BMS slave plate is connected to a pair of brackets via a second stud.

2. A battery pack electrical parts cooling device according to claim 1, characterized in that: The support plate has positioning pins for positioning the battery module to be installed.

3. A battery pack electrical parts cooling device according to claim 1, characterized in that: The water cooling pipe assembly comprises a serpentine coil connecting a water inlet and a water outlet.

4. A battery pack electrical parts cooling device according to claim 1, characterized in that: The bracket has a weight-reducing hole.

5. A battery pack electrical parts cooling device according to claim 1, characterized in that: The support comprises a horizontal bottom plate, a side wall extending vertically upward from one side of the horizontal bottom plate, and a horizontal top plate extending horizontally from the top end of the side wall.

6. A battery pack electrical parts cooling device according to claim 5, characterized in that: The horizontal top plate is located above the horizontal bottom plate.

7. A battery pack electrical parts cooling device according to claim 5, characterized in that: The horizontal bottom plate includes a stamping boss protruding upward and second mounting holes located at two ends of the stamping boss.

8. A battery pack electrical parts cooling device according to claim 5, characterized in that: A vertical first stud is fixedly arranged on the upper surface of the horizontal top plate, and a vertical second stud is fixedly arranged on the lower surface of the horizontal top plate.

9. A battery pack electrical parts cooling device according to claim 8, characterized in that: The first stud and the second stud share a central axis.

10. A battery pack electrical parts cooling device according to claim 1, characterized in that: Module A has a symmetrical structure.

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