Motor controller and electrical equipment

Abstract

The utility model discloses a motor controller and electrical equipment, and the motor controller comprises a box body, a structural member and a low-voltage interface board, the structural member is arranged at the opening side of the box body, the side, facing the box body, of the structural member is provided with a bump, the low-voltage interface board is located between the box body and the structural member, and the side, facing the structural member, of the low-voltage interface board is provided with a copper layer. The salient points are at least partially located in the copper layer. According to the scheme provided by the invention, electromagnetic shielding of the low-voltage interface board is realized by directly utilizing the matching of the salient points on the structural member in the motor controller and the copper layer, an additional shielding cover is not needed, and the product weight and the product cost are reduced; moreover, the assembly of the shielding case is reduced, the assembly time is saved, and the production efficiency is improved. Meanwhile, after the shielding cover is removed, safety gaps between the shielding cover and the two sides can be reduced, the size of the product is reduced, and the power density of the product is improved.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to a motor controller and electrical equipment. Background Technology

[0002] As a key component of the drive system in new energy vehicles, the motor controller is the control center of the electric vehicle. With further technological iteration, high integration has become a major direction for improving the performance of electric control products. Highly integrated motor controllers achieve higher power density and performance by integrating components with different functions, while reducing the cost of electric drive systems.

[0003] To protect the low-voltage ports of the motor controller from noise coupling generated by internal power devices, a shielding cover is typically designed at the low-voltage port location. This shielding cover is primarily used to block internal noise. This results in a heavier overall motor controller and more complex assembly. Utility Model Content

[0004] The main objective of this application is to provide a motor controller and electrical equipment that can reduce overall weight, save assembly time, and improve production efficiency.

[0005] To achieve the above objectives, this application proposes a motor controller, comprising:

[0006] Box;

[0007] A structural component is provided on the opening side of the box body, and a protrusion is provided on the side of the structural component facing the box body;

[0008] A low-voltage interface board is located between the housing and the structural component. A copper layer is provided on the side of the low-voltage interface board facing the structural component, and the protrusions are at least partially located within the copper layer for electromagnetic shielding of the ports on the low-voltage interface board.

[0009] In one embodiment, the distance from the end of the protrusion facing the structural member to the end of the protrusion away from the structural member is L1, and the distance between the side of the structural member facing the copper layer and the copper layer is L2, wherein L1 is greater than L2.

[0010] In one embodiment, L1-L2 are between 0-0.3 mm.

[0011] In one embodiment, the structural member has a plurality of protrusions on the side facing the housing, and the plurality of protrusions are distributed on the side of the structural member facing the housing.

[0012] In one embodiment, a plurality of the protrusions are evenly distributed on the outer periphery of the structural member facing the housing.

[0013] In one embodiment, the spacing between two adjacent protrusions is 80mm-120mm.

[0014] In one embodiment, the protrusion is integrally formed with the structural member.

[0015] In one embodiment, a boss is provided on the side of the housing facing the low-voltage interface board, and the circuit board on the low-voltage interface board abuts against the boss.

[0016] In one embodiment, the side of the boss facing the circuit board has a planar structure.

[0017] This application also provides an electrical device including a motor controller as described in any one of the embodiments of this application.

[0018] The motor controller provided in this application directly utilizes the protrusions on the internal structural components of the motor controller in conjunction with the copper layer to achieve electromagnetic shielding of the low-voltage interface board, eliminating the need for an additional shielding cover, thus reducing product weight and cost. Furthermore, it reduces the assembly of the shielding cover, saving assembly time and improving production efficiency. Simultaneously, eliminating the shielding cover reduces the safety gaps on both sides of the shielding cover, lowering the product's size and increasing its power density. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 An exploded view of a motor controller provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 A schematic diagram of the assembled assembly;

[0022] Figure 3 for Figure 2 A partial sectional view.

[0023] Explanation of icon numbers:

[0024]

[0025]

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] The following is a detailed description of this application.

[0031] This application discloses a filter connector device, with reference to... Figure 1 and combined Figure 2 , Figure 3 As shown, Figure 1 An exploded view of the motor controller provided in this application. Figure 2 for Figure 1 A schematic diagram after assembly. Figure 3 for Figure 2 A partial sectional view.

[0032] In this embodiment of the application, the motor controller includes a housing 10, a structural component 11, and a low-voltage interface board 12. The structural component 11 is disposed on the open side of the housing 10, and a protrusion 111 is provided on the side of the structural component 11 facing the housing 10. The low-voltage interface board 12 is located between the housing 10 and the structural component 11, and a copper layer 121 is provided on the side of the low-voltage interface board 12 facing the structural component 11. The protrusion 111 is at least partially located within the copper layer 121, and is used to electromagnetically shield the ports on the low-voltage interface board 12.

[0033] The motor controller provided in this application directly utilizes the protrusions 111 on the internal structural component 11 of the motor controller to cooperate with the copper layer 121 to achieve electromagnetic shielding of the low-voltage interface board 12, eliminating the need for an additional shielding cover, thus reducing product weight and cost. Furthermore, it reduces the assembly of the shielding cover, saving assembly time and improving production efficiency. Simultaneously, eliminating the shielding cover reduces the safety gaps on both sides of the shielding cover, lowering the product's volume and increasing its power density.

[0034] In some embodiments, the distance from the end of the bump 111 facing the structural member 11 to the end of the bump 111 away from the structural member 11 is L1, and the distance between the side of the structural member 11 facing the copper layer 121 and the copper layer 121 is L2, wherein L1 is greater than L2. This ensures that the bump 111 can contact the copper layer 121, avoiding the inability of the bump 111 and the copper layer 121 to make contact due to tolerance issues.

[0035] In some embodiments, L1-L2 is between 0-0.3 mm. This not only ensures that the bump 111 and the copper layer 121 are in contact, but also avoids that the size of L1-L2 is too large, which would cause the bump 111 to exert excessive pressure on the copper layer 121.

[0036] In some embodiments, the structural member 11 is provided with a plurality of protrusions 111 on the side facing the housing 10, and the plurality of protrusions 111 are distributed on the side of the structural member 11 facing the housing 10.

[0037] In this embodiment, each protrusion 111 can be evenly distributed on the side of the structural component 11 facing the housing 10, or it can be set according to the actual situation, which is not limited here.

[0038] When each protrusion 111 is evenly distributed on the side of the structural member 11 facing the housing 10, the force on each protrusion 111 is uniform, which improves the stability of the connection.

[0039] In some embodiments, a plurality of bumps 111 are evenly distributed on the outer periphery of the structural member 11 facing the housing 10. This avoids the bumps 111 from applying pressure to the middle portion of the circuit board on the low-voltage interface board 12, which could cause damage to the middle portion of the circuit board.

[0040] In some embodiments, the distance between two adjacent protrusions 111 is 80mm-120mm.

[0041] In this embodiment, the distance between two adjacent protrusions 111 can be 85mm, 90mm, 100mm, etc., and the specific distance can be determined according to the actual situation. This embodiment does not limit this distance.

[0042] This embodiment limits the distance between two adjacent bumps 111 to avoid the distance between two adjacent bumps 111 being too small, thereby avoiding the copper layer 121 being damaged by an excessive number of bumps 111.

[0043] In some embodiments, the protrusion 111 is integrally formed with the structural component 11. This makes it easier to assemble the overall motor controller.

[0044] In some embodiments, a boss 101 is provided on the side of the housing 10 facing the low-voltage interface board 12, and the circuit board on the low-voltage interface board 12 abuts against the boss 101.

[0045] This provides support for the circuit board, and the gap between the circuit board and the housing 10 prevents the components on the circuit board from colliding and being damaged by the housing 10.

[0046] In some embodiments, the side of the boss 101 facing the circuit board is a planar structure. In this way, the boss 101 can make close contact with the circuit board, so that the boss 101 can stably support the circuit board.

[0047] This application also provides an electrical device including a motor controller as described in any of the embodiments of this application.

[0048] The specific structure of the motor controller in this embodiment refers to the above embodiments. Since the electrical device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0049] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of this application's specification and drawings under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A motor controller, characterized in that, include: Box (10); Structural component (11), the structural component (11) is disposed on the opening side of the box (10), and the structural component (11) has a protrusion (111) on the side facing the box (10); A low-voltage interface board (12) is located between the housing (10) and the structural component (11). A copper layer (121) is provided on the side of the low-voltage interface board (12) facing the structural component (11). The protrusions (111) are at least partially located in the copper layer (121) and are used to electromagnetically shield the ports on the low-voltage interface board (12).

2. The motor controller according to claim 1, characterized in that, The distance from one end of the protrusion (111) facing the structural member (11) to the end of the protrusion (111) away from the structural member (11) is L1, and the distance from the side of the structural member (11) facing the copper layer (121) to the copper layer (121) is L2, wherein L1 is greater than L2.

3. The motor controller according to claim 2, characterized in that, The L1-L2 ranges from 0 to 0.3 mm.

4. The motor controller according to any one of claims 1 to 3, characterized in that, The structural member (11) has a plurality of protrusions (111) on the side facing the box (10), and the plurality of protrusions (111) are distributed on the side of the structural member (11) facing the box (10).

5. The motor controller according to claim 4, characterized in that, The multiple protrusions (111) are evenly distributed on the outer periphery of the structural member (11) facing the box (10).

6. The motor controller according to claim 4, characterized in that, The distance between two adjacent protrusions (111) is 80mm-120mm.

7. The motor controller according to claim 1, characterized in that, The protrusion (111) is integrally formed with the structural component (11).

8. The motor controller according to claim 1, characterized in that, The enclosure (10) has a boss (101) on the side facing the low-voltage interface board (12), and the circuit board on the low-voltage interface board (12) abuts against the boss (101).

9. The motor controller according to claim 8, characterized in that, The side of the boss (101) facing the circuit board has a planar structure.

10. An electrical device, characterized in that, Including the motor controller as described in any one of claims 1 to 9.

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