Vehicle-mounted electrical module and automobile

Abstract

The utility model discloses a vehicle-mounted electrical module and an automobile. The in-vehicle electrical module includes: a housing; the vehicle-mounted charger comprises a vehicle-mounted charger main printed circuit board assembly; and the cooling installation part is used for cooling and installing the main printed circuit board assembly of the vehicle-mounted charger, and the cooling installation part is detachably fixed on the shell. According to the vehicle-mounted electrical module, the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, and in particular, to an on-board electrical module and an automobile with such an on-board electrical module. BACKGROUND

[0002] With the development of new energy technology, electric vehicles are increasingly favored by users due to their energy-saving and environmentally friendly advantages. An on-board charger (OBC) is a charger installed on an electric vehicle and serves as an on-board charging device for charging a battery pack.

[0003] Some electronic components in a printed circuit board assembly (PCBA) of an on-board charger need to be connected to a housing using a gel, which serves the purpose of heat conduction and fixation after the gel is cured. However, if a problem is found in the product after the gel is cured, the printed circuit board assembly needs to be discarded together with the housing, which is costly. UTILITY MODEL CONTENT

[0004] The main technical problem to be solved by the present application is how to reduce costs.

[0005] To solve the above technical problems, the present application provides an on-board electrical module, which includes:

[0006] a housing;

[0007] an on-board charger including an on-board charger main printed circuit board assembly; and

[0008] a cooling mount for cooling and mounting the on-board charger main printed circuit board assembly, the cooling mount being detachably fixed to the housing.

[0009] The on-board electrical module according to an aspect of the present application includes one or more of the following: a control printed circuit board assembly, a direct current converter main printed circuit board assembly, and an insulated metal substrate printed circuit board assembly.

[0010] The on-board electrical module according to an aspect of the present application includes a through-hole soldering element fixed to the cooling mount by potting.

[0011] The on-board electrical module according to an aspect of the present application includes a fixing hole in the cooling mount, and the cooling mount is fixed to the housing by a threaded connecting piece passing through the fixing hole.

[0012] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0013] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0014] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0015] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0016] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0017] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid.

[0018] According to an aspect of the present application, the vehicle-mounted electrical module is provided with a cooling installation, a cooling liquid inlet for the inflow of cooling liquid, and a cooling liquid outlet for the outflow of cooling liquid. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure of the present application will be described with reference to the accompanying drawings. It should be appreciated that the drawings are only for the purpose of illustration and are not intended to limit the scope of protection of the present application. Among them:

[0020] Figure 1 schematically shows a vehicle-mounted electrical module according to an embodiment of the present application in an uninstalled state;

[0021] Figure 2 schematically shows a vehicle-mounted electrical module in Figure 1 schematically shows a partial exploded view of the vehicle-mounted electrical module in

[0022] Figure 3 schematically shows a partial view of the vehicle-mounted electrical module in Figure 1 schematically shows a partial view of the vehicle-mounted electrical module in DETAILED DESCRIPTION

[0023] Embodiments of the present application will be described in detail below with reference to the attached drawings. It will be appreciated by those skilled in the art that the description is merely exemplary and should not be construed as limiting the scope of protection of the present application.

[0024] Referring to Figures 1 to 3 As shown, the vehicle electrical module 100 according to one embodiment of the present application comprises a housing 1, a vehicle charger and a cooling mount 3. The vehicle charger comprises a vehicle charger main printed circuit board assembly 21 and can further comprise a vehicle charger control printed circuit board assembly 4 for controlling the vehicle charger main printed circuit board assembly 21. The main electronic components of the vehicle charger are provided on the vehicle charger main printed circuit board assembly 21. The cooling mount 3, as its name implies, is used for cooling and mounting the vehicle charger main printed circuit board assembly 21. The cooling mount 3 is detachably fixed to the housing 1. In the mounted state, the vehicle charger and the cooling mount 3 are located in the housing 1.

[0025] In the technical solution according to the present application, by providing the cooling mount 3 for cooling and mounting the vehicle charger main printed circuit board assembly 21 and detachably fixing the cooling mount 3 to the housing, after the gel between the vehicle charger main printed circuit board assembly 21 and the cooling mount 3 is cured, in the case that the vehicle electrical module 100 partially malfunctions (for example, found in detection or operation), the cooling mount 3 and the vehicle charger main printed circuit board assembly 21 mounted thereon can be flexibly detached and discarded or reused according to the situation. For example, in the case that the electronic components of the vehicle charger main printed circuit board assembly 21 malfunction, the cooling mount 3 and the vehicle charger main printed circuit board assembly 21 mounted thereon can be detached and replaced with new ones; in the case that other parts of the vehicle electrical module 100 malfunction, the available cooling mount 3 and the vehicle charger main printed circuit board assembly 21 mounted thereon can be detached. In this way, in the case that the vehicle electrical module 100 partially malfunctions, the entire vehicle electrical module 100 does not need to be discarded, thereby reducing costs.

[0026] In addition, the gel between the vehicle charger main printed circuit board assembly 21 and the cooling mount 3 needs to be cured under certain temperature or light conditions, which is often carried out in a specific process container. In the technical solution according to the present application, only the cooling mount 3 and the vehicle charger main printed circuit board assembly 21 mounted thereon need to be placed in the process container for curing the gel, without the need to place the entire housing, which can significantly reduce the size of the required process container.

[0027] The vehicle electrical module 100 can comprise one or more of the following: a control printed circuit board assembly 4, a direct current converter (DC-DC) main printed circuit board assembly 5, an insulated metal substrate printed circuit board assembly 6 (Mos Ims PCBA).

[0028] The control printed circuit board assembly 4 is used to control the direct current converter main printed circuit board assembly 5 and / or the vehicle charger main printed circuit board assembly 21. One control printed circuit board assembly can be configured for the direct current converter and the vehicle charger respectively, or one common control printed circuit board assembly can be configured for the direct current converter and the vehicle charger.

[0029] The vehicle charger main printed circuit board assembly 21 comprises a through-hole soldering element which is fixed to the cooling mount 3 by means of potting with a gel. Through-hole soldering elements generally generate a large amount of heat and need to be fixed well. In this way, the through-hole soldering element is both heat-conducting and fixed.

[0030] The cooling mount 3 is provided with a fixing hole, and the cooling mount 3 is fixed to the housing by means of a threaded connection passing through the fixing hole, so as to achieve detachable connection between the cooling mount 3 and the housing. Of course, the cooling mount 3 and the housing can also be connected in other ways.

[0031] The cooling mount 3 is provided with a cooling liquid passage, a cooling liquid inlet 31 for the inflow of cooling liquid, and a cooling liquid outlet 32 for the outflow of cooling liquid. The cooling liquid flows through the cooling liquid passage through the position of the electronic components to be cooled, directly or indirectly through a gel, to take away heat and play a cooling role. Further, the cooling liquid inlet 31 and the cooling liquid outlet 32 are respectively connected with the housing and sealed by rubber, and the housing is provided with a cooling liquid flow path, which together with the cooling liquid passage in the cooling mount 3 forms part of a cooling liquid circuit. Here, the cooling liquid inlet 31 and the cooling liquid outlet 32 can be functionally interchangeable.

[0032] The housing comprises a first space 11, and in the installed state, the vehicle charger main printed circuit board assembly 21 is located in the first space 11. The housing can also comprise other spaces different from the first space 11, in which an inverter and / or a power distributor are arranged.

[0033] Reference Figure 2 and Figure 3As shown, the vehicle-mounted electrical module 100 further comprises a control printed circuit board assembly 4, a DC converter main printed circuit board assembly 5 and an insulated metal substrate printed circuit board assembly 6, which form a separate unit. The control printed circuit board assembly 4 is used to control the DC converter main printed circuit board assembly 5 and the vehicle-mounted charger main printed circuit board assembly 21. The cooling mount 3 is used to cool and mount the vehicle-mounted charger main printed circuit board assembly 21, the control printed circuit board assembly 4, the DC converter main printed circuit board assembly 5 and the insulated metal substrate printed circuit board assembly 6.

[0034] The vehicle-mounted charger main printed circuit board assembly 21 and the DC converter main printed circuit board assembly 5 are oppositely arranged on both sides of the cooling mount 3. Specifically, the vehicle-mounted charger main printed circuit board assembly 21 is arranged on the upper side of the cooling mount 3, and the DC converter main printed circuit board assembly 5 is arranged on the lower side of the cooling mount 3. The cooling mount 3 is configured in a flat shape to facilitate cooling of the electronic components on the vehicle-mounted charger main printed circuit board assembly 21 and the DC converter main printed circuit board assembly 5.

[0035] The control printed circuit board assembly 4 and the insulated metal substrate printed circuit board assembly 6 are arranged on the other sides of the cooling mount 3, specifically the left and right sides. On the right side, the control printed circuit board assembly 4 is arranged outward, and the insulated metal substrate printed circuit board assembly 6 is arranged inward to facilitate cooling of the insulated metal substrate printed circuit board assembly 6. A metal bracket 7 is arranged between the control printed circuit board assembly 4 and the insulated metal substrate printed circuit board assembly 6 to support the control printed circuit board assembly 4 and shield interference signals to the control printed circuit board assembly 4.

[0036] By oppositely arranging the vehicle-mounted charger main printed circuit board assembly 21 and the DC converter main printed circuit board assembly 5 on both sides of the cooling mount 3, and arranging the control printed circuit board assembly 4 and the insulated metal substrate printed circuit board assembly 6 on the other sides of the cooling mount 3, the installation space of the cooling mount on each side can be effectively utilized, making the overall product structure more compact. In addition, by staggered arranging the through-hole solder elements on the vehicle-mounted charger main printed circuit board assembly 21 and the DC converter main printed circuit board assembly 5, the overall product occupies less space in the horizontal plane and is more compact.

[0037] The application also includes a vehicle with a vehicle-mounted electrical module according to any one or more of the preceding embodiments, which has the corresponding technical features and technical effects as described above, and thus will not be described here again.

Claims

1. A vehicle electrical module (100), characterized in that The vehicle-mounted electrical module (100) comprises: a housing (1); a vehicle-mounted charger comprising a vehicle-mounted charger main printed circuit board assembly (21); and a cooling mount (3) for cooling and mounting the vehicle-mounted charger main printed circuit board assembly (21), the cooling mount (3) being detachably fixed to the housing (1).

2. The electrical vehicle module (100) according to claim 1, characterized in that The vehicle-mounted electrical module (100) comprises one or more of: a control printed circuit board assembly, a DC converter main printed circuit board assembly, an insulated metal substrate printed circuit board assembly.

3. The vehicle electrical module (100) according to claim 1, characterized in that The vehicle-mounted charger main printed circuit board assembly (21) comprises a through-hole soldering element fixed to the cooling mount (3) by potting.

4. The vehicle electrical module (100) according to claim 1, characterized in that A fixing hole is provided in the cooling mount (3), and the cooling mount (3) is fixed to the housing by a threaded connecting piece passing through the fixing hole.

5. The vehicle electrical module (100) according to claim 1, characterized in that A cooling liquid passage, a cooling liquid inlet (31) for cooling liquid inflow, and a cooling liquid outlet (32) for cooling liquid outflow are provided in the cooling mount (3).

6. The vehicle electrical module (100) according to claim 5, characterized in that The cooling liquid inlet (31) and the cooling liquid outlet (32) are respectively connected to the housing.

7. The vehicle electrical module (100) according to claim 1, characterized in that The housing comprises a first space (11), and the vehicle-mounted charger main printed circuit board assembly (21) is located in the first space (11).

8. The vehicle electrical module (100) according to claim 7, characterized in that The housing comprises other spaces different from the first space (11), and an inverter and / or a power distributor are arranged in the other spaces.

9. The vehicle electrical module (100) according to claim 1, characterized in that The vehicle-mounted electrical module (100) comprises a control printed circuit board assembly (4), a DC converter main printed circuit board assembly (5), and an insulated metal substrate printed circuit board assembly (6), the vehicle-mounted charger main printed circuit board assembly (21) and the DC converter main printed circuit board assembly (5) are oppositely located on both sides of the cooling mount (3), and the control printed circuit board assembly (4) and the insulated metal substrate printed circuit board assembly (6) are located on the other sides of the cooling mount (3).

10. An automobile characterized by comprising: It comprises the vehicle-mounted electrical module (100) according to any one of claims 1 to 9. The vehicle-mounted electrical module (100) comprises one or more of: a control printed circuit board assembly, a DC converter main printed circuit board assembly, an insulated metal substrate printed circuit board assembly. The vehicle-mounted charger main printed circuit board assembly (21) comprises a through-hole soldering element fixed to the cooling mount (3) by potting. A fixing hole is provided in the cooling mount (3), and the cooling mount (3) is fixed to the housing by a threaded connecting piece passing through the fixing hole. A cooling liquid passage, a cooling liquid inlet (31) for cooling liquid inflow, and a cooling liquid outlet (32) for cooling liquid outflow are provided in the cooling mount (3). The cooling liquid inlet (31) and the cooling liquid outlet (32) are respectively connected to the housing. The housing comprises a first space (11), and the vehicle-mounted charger main printed circuit board assembly (21) is located in the first space (11). The housing comprises other spaces different from the first space (11), and an inverter and / or a power distributor are arranged in the other spaces. The vehicle-mounted electrical module (100) comprises a control printed circuit board assembly (4), a DC converter main printed circuit board assembly (5), and an insulated metal substrate printed circuit board assembly (6), the vehicle-mounted charger main printed circuit board assembly (21) and the DC converter main printed circuit board assembly (5) are oppositely located on both sides of the cooling mount (3), and the control printed circuit board assembly (4) and the insulated metal substrate printed circuit board assembly (6) are located on the other sides of the cooling mount (3). It comprises the vehicle-mounted electrical module (100) according to any one of claims 1 to 9.

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