Controller and vehicle thereof

Abstract

The utility model discloses a controller and a vehicle thereof, the controller comprises a conductive shell and a circuit board arranged in the conductive shell, the circuit board is provided with a connector, the conductive shell comprises a first sub-conductive shell and a second sub-conductive shell which are buckled, the first sub-conductive shell is provided with a first shielding partition wall, and the second sub-conductive shell is provided with a second shielding partition wall. The first shielding partition wall is arranged in the first sub-conductive shell and divides the first sub-conductive shell into a first shielding cavity, and the connector is at least partially located in the first shielding cavity so as to perform electromagnetic shielding on the connector. According to the scheme, at least the assembling efficiency of the controller can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a controller and a vehicle thereof. Background Art

[0002] Cables are generally connected to circuit boards through connectors. Connectors are divided into metal shell connectors and non-metal shell connectors. Metal shell connectors have better electromagnetic shielding effects, but their costs are higher; non-metal shell connectors have lower costs, but they do not have electromagnetic shielding effects themselves, so it is necessary to set a shielding cover separately on the outside of the non-metal shell connector. Generally, the shielding cover needs to be connected to the circuit board or shell by screws, which makes assembly complicated and affects assembly efficiency. Utility Model Content

[0003] The utility model aims to provide a controller and a vehicle thereof, which are at least used to improve the assembly efficiency of the controller.

[0004] In a first aspect, the utility model provides a controller, comprising a conductive shell and a circuit board arranged in the conductive shell, wherein a connector is arranged on the circuit board, and the conductive shell comprises a first sub-conductive shell and a second sub-conductive shell that are snap-fitted together, wherein the first sub-conductive shell has a first shielding partition wall, wherein the first shielding partition wall separates the first sub-conductive shell into a first shielding cavity, and the connector is at least partially located in the first shielding cavity to electromagnetically shield the connector.

[0005] As an implementable manner, more than two connectors are arranged on the circuit board, and the first shielding partition wall separates the first shielding cavities in the first sub-conductive shell to form the same number of first shielding cavities as the connectors, and each of the connectors is arranged in the first shielding cavity in a one-to-one correspondence.

[0006] As an implementable manner, the first shielding partition wall flexibly abuts against a first functional surface of the circuit board, and is electrically connected to a first grounding contact provided on the first functional surface.

[0007] As an implementable manner, first copper leakage areas respectively surrounding each of the connectors are arranged on the first functional surface, the grounding contact includes the first copper leakage area; and the first shielding partition wall at least flexibly abuts against the first copper leakage area.

[0008] As an implementable manner, a first flexible conductive member is press-fitted between the first copper leakage area and the first shielding partition wall.

[0009] As an implementable manner, the second sub-conductive shell has a second shielding partition wall, which separates the second sub-conductive shell into a second shielding cavity. In the orthographic projection of the second functional surface of the circuit board, the connector is at least partially located in the second shielding cavity, and the second functional surface is arranged opposite to the first functional surface.

[0010] As an implementable manner, the second shielding partition wall flexibly abuts against the second functional surface, and is electrically connected to a second ground contact provided on the second functional surface.

[0011] As an implementable manner, second copper leakage areas respectively surrounding each of the connectors are arranged on the second functional surface, the second grounding contact includes the second copper leakage area; and the second shielding partition wall at least flexibly abuts against the second copper leakage area.

[0012] As an implementable manner, a second flexible conductive member is press-fitted between the second copper leakage area and the second shielding partition wall.

[0013] In a second aspect, the utility model provides a vehicle, comprising the above-mentioned controller.

[0014] In the above-mentioned solution provided by the utility model, since the first sub-conductive shell has a first shielding partition wall, the first shielding partition wall divides and forms a first shielding cavity inside the first sub-conductive shell, and the connector is at least partially located in the first shielding cavity to perform electromagnetic shielding on the connector. Compared with the prior art, in the present application, since the first sub-conductive shell itself has the first shielding cavity for electromagnetic shielding of the connector, there is no need to install a shielding cover separately. Therefore, the assembly process is simplified, the assembly difficulty is reduced, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 An exploded diagram of a controller in the prior art;

[0017] Figure 2 An exploded diagram of the controller provided by the utility model;

[0018] Figure 3 A top view of the circuit board provided by the utility model;

[0019] Figure 4 A cross-sectional view of the controller provided by the utility model passing through the connector portion;

[0020] Figure 5 This is a schematic diagram of the theoretical transmission path of the high-frequency noise of the controller provided by the utility model. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figure 1 As shown, in the prior art, since the connector 31 with a non-metallic shell does not have an electromagnetic shielding effect, it is necessary to separately set a shielding cover 2 on the outside of the connector 31 with a non-metallic shell. The shielding cover 2 needs to be separately fixed on the circuit board 3, and then the circuit board 3 connected to the shielding cover 2 is installed in the installation cavity formed by the upper shell 11 and the lower shell 12, which increases the complexity and difficulty of assembly and affects the assembly efficiency. To solve this problem, an embodiment of the utility model provides a controller, which is at least used to reduce the difficulty of assembly and improve the assembly efficiency.

[0024] like Figure 2-Figure 5 As shown, an embodiment of the utility model provides a controller, including a conductive shell and a circuit board 3 arranged in the conductive shell, a connector 31 is arranged on the circuit board 3, the conductive shell includes a first sub-conductive shell 41 and a second sub-conductive shell 42 that are snap-fitted, the first sub-conductive shell 41 has a first shielding partition wall 411, the first shielding partition wall 411 is separated in the first sub-conductive shell 41 to form a first shielding cavity 412, the connector 31 is at least partially located in the first shielding cavity 412 to perform electromagnetic shielding on the connector 31.

[0025] The conductive housing mentioned here means that the material used to make the conductive housing has conductivity. For example, but not limited to, the material used to make the conductive housing may include metal material, conductive plastic, etc.

[0026] The conductive housing can support and protect the circuit board 3 disposed therein to prevent damage to the circuit board 3 caused by external forces or external components, and can also improve the electromagnetic compatibility (EMC) of the controller.

[0027] It can be processed by die casting, sheet metal, CNC machine tool processing (Computer numerical control; CNC) and other processes.

[0028] In some examples, the main body of the conductive shell can be made of insulating material, and then the surface of the insulating main body can be made to have the ability to conduct wires by pasting metal foil, inlaying metal materials, coating metal materials, etc.

[0029] In some other examples, the main body of the conductive shell can be made of conductive material, and the outside of the main body is protected by metal encapsulation or painting. In this way, a part of the entity needs to be wrapped outside the encapsulation or paint as a contact to be electrically connected to other parts. In the utility model, the electrical connection with the ground contact on the circuit board 3 is taken as an example.

[0030] In order to facilitate the installation of the circuit board 3 into the conductive shell, the conductive shell can adopt a split structure. For example, the conductive shell includes a first sub-conductive shell 41 and a second sub-conductive shell 42 that are interlocked. The first sub-conductive shell 41 and the second sub-conductive shell 42 are interlocked with each other to form an installation cavity, and the circuit board 3 is fixed in the installation cavity.

[0031] During assembly, for example, the circuit board 3 can be fixed to either the first sub-conductive shell 41 or the second sub-conductive shell 42. After the circuit board 3 is fixed, the first sub-conductive shell 41 and the second sub-conductive shell 42 are buckled together, and the first sub-conductive shell 41 and the second sub-conductive shell 42 are fixedly connected together by fasteners such as screws or claws and grooves that are arranged on the first sub-conductive shell 41 and the second sub-conductive shell 42 and engage with each other.

[0032] In this example, the connector 31 uses a connector 31 with a non-metallic shell. The connector 31 with a non-metallic shell does not have a shielding function itself, and the pin length of the connector 31 with a non-metallic shell (that is, a non-shielded connector) is often electrically large for high-frequency noise. It can couple high-frequency noise from the outside (such as other lines) and emit it from the cable connected to it. In order to prevent external high-frequency noise from coupling into the connector 31, a first shielding partition wall 411 is provided in the first sub-conductive shell 41. The first shielding partition wall 411 separates the first sub-conductive shell 41 to form a first shielding cavity 412. The connector 31 is at least partially located in the first shielding cavity 412 to perform electromagnetic shielding on the connector 31.

[0033] The first shielding partition wall 411 may be an integral structure with the first sub-conductive housing 41 , or may be fixed in the first sub-conductive housing 41 by welding or conductive adhesive.

[0034] Electrical size is the ratio of the physical length of the signal transmission line to the wavelength. Generally, when the physical size of the transmission line is less than 1 / 10 of the wavelength, it can be considered to be electrically small. When the physical size of the transmission line is close to the wavelength of the signal, it is considered to be electrically large.

[0035] In the above-mentioned scheme provided by the utility model, since the first sub-conductive shell 41 has a first shielding partition wall 411, the first shielding partition wall 411 separates and forms a first shielding cavity 412 in the first sub-conductive shell 41, and the connector 31 is at least partially located in the first shielding cavity 412 to perform electromagnetic shielding on the connector 31. Compared with the prior art, in the present application, since the first sub-conductive shell 41 itself has the first shielding cavity 412 for electromagnetic shielding of the connector 31, there is no need to install a shielding cover separately, thereby simplifying the assembly process, reducing the difficulty of assembly, and improving the assembly efficiency.

[0036] In addition, compared with the method in the prior art of separately setting a shielding cover 2 outside the connector 31 by means of screws or the like, the prior art will have problems of abnormal noise and metal corrosion during mechanical shock, vibration and long-cycle testing; however, in the present application, since a shielding cavity is formed in the first sub-conductive shell 41 itself, even if the first sub-conductive shell 41 is subjected to mechanical shock, vibration and long-cycle testing, abnormal noise will occur, thereby improving reliability.

[0037] As an implementable manner, more than two connectors 31 are provided on the circuit board 3, and the first shielding partition wall 411 separates the first shielding cavities 412 in the first sub-conductive shell 41 to form the same number of the connectors 31, and each of the connectors 31 is arranged in the first shielding cavity 412 in a one-to-one correspondence.

[0038] Generally, a plurality of connectors 31 are arranged on the circuit board 3. In order to prevent interference between the connectors 31, a shielding cavity is arranged corresponding to each connector 31. Each connector 31 is arranged in a first shielding cavity 412 one by one. Each first shielding cavity 412 performs electromagnetic shielding on the connector 31 arranged therein.

[0039] In this example, three different connectors 31 are provided on the circuit board 3, and three first shielding cavities 412 corresponding to the three connectors 31. Of course, other numbers of connectors 31 may be provided in other examples, and the types of connectors 31 may be the same or different, depending on the actual situation.

[0040] As an implementable manner, the first shielding partition wall 411 flexibly abuts against the first functional surface 33 of the circuit board 3 , and is electrically connected to a first grounding contact provided on the first functional surface 33 .

[0041] The first shielding partition wall 411 is flexibly abutted against the first functional surface 33 of the circuit board 3 so that there is no gap between the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3, thereby avoiding the problem of reduced shielding effect due to the existence of the gap.

[0042] In the prior art, the shielding cover is generally rigidly connected to the circuit board 3. Due to assembly errors and other reasons, an assembly gap will be formed between the shielding cover and the functional surface (surface) of the circuit board 3, resulting in a reduction in the shielding effect. However, in the present solution, since the first shielding partition wall 411 is flexibly abutted against the first functional surface 33 of the circuit board 3, the flexible portion will deform, so that there will be no gap between the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3.

[0043] The first functional surface 33 mentioned here is the side of the circuit board 3 where the electrical components and / or solder joints (pads) are arranged (it can also be generally understood as the front or back side of the circuit board 3).

[0044] The flexible abutment mentioned here can be understood as: 1. The first shielding partition wall 411 itself is made of flexible material, and the position where it contacts the first functional surface 33 will undergo a certain deformation when it abuts on the first functional surface 33. For example, the assembly size can be controlled so that the first shielding partition wall 411 has a certain interference fit. After being assembled into place, the position where the first shielding partition wall 411 contacts the first functional surface 33 is tightly attached to the first functional surface 33; 2. Conductive glue, conductive rubber, conductive silicone, flexible conductive plastic, flexible metal foil, etc. can be set between the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3 to achieve flexible abutment between the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3.

[0045] As an implementable method, in order to reduce the impedance of the electrical connection between the first shielding partition wall 411 and the circuit board 3, first copper leakage areas 32 respectively surrounding each of the connectors 31 are provided on the first functional surface 33, and the grounding contact includes the first copper leakage area 32; the first shielding partition wall 411 at least flexibly abuts against the first copper leakage area 32.

[0046] The first copper leakage area 32 referred to here refers to the copper conductor area exposed to the insulating layer on the surface of the circuit board 3, which is generally used for grounding.

[0047] As an implementable manner, a first flexible conductive member 413 is press-fitted between the first copper leakage area 32 and the first shielding partition wall 411 .

[0048] The first flexible conductive member 413 can be conductive glue, conductive rubber, conductive silicone, flexible conductive plastic, flexible metal sheet, etc.

[0049] In this example, the first flexible conductive part 413 takes conductive glue as an example. Glue can be applied on the first shielding partition wall 411. After the glue is cured and shaped, the conductive glue is tightly connected to the end face of the first shielding partition wall 411. Then, the circuit board 3 and the first sub-conductive shell 41 are assembled. The conductive glue has a certain deformation ability. An interference fit is adopted to reserve an interference amount between the end face of the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3. During assembly, the conductive glue is deformed and filled between the end face of the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3, so that the three are tightly fitted, thereby avoiding the problem of gap formation between the end face of the first shielding partition wall 411 and the first functional surface 33 of the circuit board 3.

[0050] As an implementable method, in addition to using the first shielding cavity 412 to shield the front of the connector 31 (shielding on the first functional surface 33 side), in order to further improve the shielding effect, the back of the connector 31 can be shielded by the following second shielding cavity 422 (shielding on the second functional surface 34 side). Specifically, the second sub-conductive shell 42 has a second shielding partition wall 421, and the second shielding partition wall 421 is separated in the second sub-conductive shell 42 to form a second shielding cavity 422. In the orthographic projection of the second functional surface 34 of the circuit board 3, the connector 31 is at least partially located in the second shielding cavity 422, and the second functional surface 34 is arranged opposite to the first functional surface 33.

[0051] The second functional surface 34 and the first functional surface 33 , that is, the two opposite sides of the circuit board 3 , are both used to set electrical components and / or soldering points (pads).

[0052] As an implementable manner, the second shielding partition wall 421 flexibly abuts against the second functional surface 34 , and is electrically connected to a second ground contact provided on the second functional surface 34 .

[0053] The second shielding partition wall 421 is flexibly abutted against the second functional surface 34 of the circuit board 3 so that there is no gap between the second shielding partition wall 421 and the second functional surface 34 of the circuit board 3, thereby avoiding the problem of reduced shielding effect due to the existence of the gap.

[0054] The flexible abutment mentioned here can be understood as: 1. The second shielding partition wall 421 itself is made of flexible material, and the position where it contacts the second functional surface 34 will undergo a certain deformation when it abuts on the second functional surface 34. For example, the assembly size can be controlled so that the second shielding partition wall 421 has a certain interference fit. After being assembled into place, the position where the second shielding partition wall 421 contacts the second functional surface 34 is tightly attached to the second functional surface 34; 2. Conductive glue, conductive rubber, conductive silicone, flexible conductive plastic, flexible metal foil, etc. can be set between the second shielding partition wall 421 and the second functional surface 34 of the circuit board 3 to achieve flexible abutment between the second shielding partition wall 421 and the second functional surface 34 of the circuit board 3.

[0055] As an implementable manner, second copper leakage areas surrounding each of the connectors 31 are provided on the second functional surface 34 , and the second grounding contact includes the second copper leakage area; the second shielding partition wall 421 at least flexibly abuts against the second copper leakage area.

[0056] The second copper leakage area can have the same shape as the first copper leakage area 32 , and the two are only disposed on two opposite sides of the circuit board 3 .

[0057] The second copper leakage area referred to here refers to the copper conductor area exposed to the insulating layer on the surface of the circuit board 3, which is generally used for grounding.

[0058] As an implementable manner, a second flexible conductive member 423 is press-fitted between the second copper leakage area and the second shielding partition wall 421 .

[0059] The second flexible conductive member 423 can be conductive glue, conductive rubber, conductive silicone, flexible conductive plastic, flexible metal sheet, etc.

[0060] In this example, the second flexible conductive part 423 takes conductive glue as an example. Glue can be applied on the second shielding partition wall 421. After the glue is cured and shaped, the conductive glue is tightly connected to the end face of the second shielding partition wall 421. Then, the circuit board 3 and the second sub-conductive shell 42 are assembled. The conductive glue has a certain deformation ability. An interference fit is adopted to reserve an interference amount between the end face of the second shielding partition wall 421 and the second functional face 34 of the circuit board 3. During assembly, the conductive glue is deformed and filled between the end face of the second shielding partition wall 421 and the second functional face 34 of the circuit board 3, so that the three are tightly fitted, thereby avoiding the problem of gap formation between the end face of the second shielding partition wall 421 and the second functional face 34 of the circuit board 3.

[0061] At least Figure 5As shown, after adopting this solution, each connector 31 is shielded by a separate shielding cavity, and the noise of each connector cannot be coupled to other connectors 31. Therefore, the only path for the high-frequency noise on the circuit board 3 to radiate from the cable is the respective connector 31. By setting a filter circuit in the path connected to the corresponding connector 31, the problem of electromagnetic interference (EMI) can be solved. Similarly, if the external interference signal wants to enter the controller, the only path is the unshielded cable connected to the connector 31. Since each connector 31 is independently electromagnetically shielded, the interference signal must pass through the filter circuit. Therefore, the electromagnetic interference resistance (EMS) is also guaranteed. Therefore, the controller has good EMC performance.

[0062] In a second aspect, the utility model provides a vehicle, comprising the above-mentioned controller.

[0063] The vehicle may be, but is not limited to, a fuel vehicle, an electric vehicle, a hybrid vehicle, a hydrogen fuel cell vehicle, etc.

[0064] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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 this application can be understood according to specific circumstances.

[0065] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being “above”, “above”, and “above” a second feature includes the first feature being 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 the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 application, unless otherwise specified, "multiple" means two or more.

[0067] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of protection involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A controller, comprising a conductive housing and a circuit board (3) arranged in the conductive housing, wherein a connector (31) is arranged on the circuit board (3), characterized in that: The conductive shell comprises a first sub-conductive shell (41) and a second sub-conductive shell (42) which are interlocked, the first sub-conductive shell (41) having a first shielding partition wall (411), the first shielding partition wall (411) forming a first shielding cavity (412) in the first sub-conductive shell (41), and the connector (31) is at least partially located in the first shielding cavity (412) to perform electromagnetic shielding on the connector (31).

2. The controller according to claim 1, characterized in that The circuit board (3) is provided with more than two connectors (31); the first shielding partition wall (411) is separated in the first sub-conductive shell (41) to form first shielding cavities (412) having the same number as the connectors (31); and each of the connectors (31) is arranged in the first shielding cavity (412) in a one-to-one correspondence.

3. The controller according to claim 1 or 2, characterized in that: The first shielding partition wall (411) flexibly abuts against a first functional surface (33) of the circuit board (3), and is electrically connected to a first grounding contact point provided on the first functional surface (33).

4. The controller according to claim 3, characterized in that The first functional surface (33) is provided with a first copper leakage area (32) surrounding each of the connectors (31), and the grounding contact includes the first copper leakage area (32); the first shielding partition wall (411) at least flexibly abuts against the first copper leakage area (32).

5. The controller according to claim 4, characterized in that A first flexible conductive member (413) is pressed between the first copper leakage area (32) and the first shielding partition wall (411).

6. The controller according to claim 3, characterized in that The second sub-conductive shell (42) has a second shielding partition wall (421), and the second shielding partition wall (421) is used to form a second shielding cavity (422) in the second sub-conductive shell (42). In the orthographic projection of the second functional surface (34) of the circuit board (3), the connector (31) is at least partially located in the second shielding cavity (422), and the second functional surface (34) is arranged opposite to the first functional surface (33).

7. The controller according to claim 6, characterized in that The second shielding partition wall (421) flexibly abuts against the second functional surface (34) and is electrically connected to a second grounding contact provided on the second functional surface (34).

8. The controller according to claim 7, characterized in that The second functional surface (34) is provided with a second copper leakage area surrounding each of the connectors (31), and the second grounding contact includes the second copper leakage area; the second shielding partition wall (421) at least flexibly abuts against the second copper leakage area.

9. The controller according to claim 8, characterized in that A second flexible conductive member (423) is pressed between the second copper leakage area and the second shielding partition wall (421).

10. A vehicle, characterized in that: A controller comprising any one of claims 1 to 9.

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