Electrical module

Abstract

The utility model relates to an electrical module. The electrical module includes a housing portion, a cover portion, a PCB, and at least one connector. The cover body part is connected to the shell part so as to form an accommodating cavity in a surrounding manner; the PCB is arranged in the accommodating cavity; each connector is carried by the PCB and is at least partially positioned in the accommodating cavity; the connector is connected to the housing part through a first fixing structure and is connected to the cover part through a second fixing structure. According to the electrical module provided by the utility model, the connector is respectively connected to the shell part and the cover body part by means of the first fixing structure and the second fixing structure, so that the connection strength of the whole electrical module can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical modules, in particular to an electrical module which can be used in a vehicle and has a connector and a PCB board. Background Art

[0002] Known electrical modules, such as control modules commonly found in vehicles, generally include a PCB board encapsulated in a housing, and such PCB board is generally placed in the housing by bolting or the like. When a connector for connecting an external cable or plug is carried on the PCB board, such connector generally needs to be exposed relative to the housing, which requires that the housing must remain open or have an opening at a corresponding position. In the prior art, there is often no connection between the separated parts of the housing and between the housing and the PCB board in any manner at such an opening portion reserved for the connector, thereby weakening the fixing strength of the entire electrical module. Moreover, when a plurality of connectors or a longer connector are carried on the PCB board, the problem of insufficient fixing strength becomes more serious, which may cause uneven force on both sides of the entire electrical module assembly and cause warping. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0004] To achieve the above object, an electrical module is provided according to one aspect of the utility model, the electrical module comprising a housing, a cover, a PCB and at least one connector. The cover is connected to the housing to enclose a receiving cavity; the PCB is disposed in the receiving cavity; each of the connectors is carried by the PCB and is at least partially in the receiving cavity; the connector is connected to the housing through a first fixing structure and connected to the cover through a second fixing structure.

[0005] The electrical module of the utility model not only connects the connector to the PCB board, but also connects the connector to the shell part and the cover part which are separate parts of the shell through the first fixing structure and the second fixing structure, which can greatly improve the strength of the entire assembly.

[0006] According to an embodiment of the present utility model, the first fixing structure and the second fixing structure are both configured as snap-on connection structures.

[0007] According to one embodiment of the utility model, the first fixing structure includes a first fixing hole arranged on the connector and a first fixing block arranged on the shell part and capable of being snapped into the first fixing hole; the second fixing structure includes a second fixing hole arranged on the connector and a second fixing block arranged on the cover part and capable of being snapped into the second fixing hole.

[0008] According to one embodiment of the utility model, the first fixing hole and the second fixing hole are arranged side by side in the same side wall of the connector along a first direction perpendicular to the PCB board, the first fixing block is supported by a first bracket extending from the shell portion, and the second fixing block is supported by a second bracket extending from the cover portion.

[0009] According to an embodiment of the present invention, more than two connectors are arranged side by side at intervals on the PCB board, and the first fixing hole and the second fixing hole are arranged in the side walls facing each other of every two adjacent connectors.

[0010] According to an embodiment of the present invention, the two first brackets and the two second brackets disposed between every two adjacent connectors are connected by a first connecting plate and a second connecting plate, respectively, to form a U-shaped frame shape.

[0011] According to an embodiment of the present invention, the first bracket and the second bracket are configured to abut against each other, and the first connecting plate extends beyond the first bracket so as to partially overlap with the second connecting plate.

[0012] According to an embodiment of the present invention, at least a portion of the connector extends out of the PCB board, and the first fixing hole and the second fixing hole are provided in the portion of the side wall extending out of the PCB board.

[0013] According to an embodiment of the present invention, the cover portion and the shell portion are fixed by a plurality of buckle structures arranged at intervals on the periphery of the two portions.

[0014] According to one embodiment of the present utility model, the buckle structure includes a buckle and a buckle hole corresponding to the buckle one by one, and one of the buckle and the buckle hole is arranged on the periphery of the cover body part, and the other is arranged on the periphery of the shell part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The features and advantages of the present invention will be clearly understood through the detailed description provided below with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and thus cannot be regarded as limiting the present invention, wherein:

[0016] Figure 1 An exploded view of an electrical module according to an exemplary embodiment of the present invention is shown.

[0017] Figure 2 Show Figure 1 An enlarged view of a detail A of the electrical module is shown.

[0018] Figure 3 Show Figure 1 A partial enlarged view of the electrical module after the cover part is buckled into the shell part.

[0019] Description of reference numerals:

[0020] 1. Shell portion; 2. Cover portion; 3. Accommodating cavity; 4. PCB board; 5. Connector; 51. Side wall; 6. First fixing structure; 61. First fixing hole; 62. First fixing block; 63. First bracket; 64. First connecting plate; 7. Second fixing structure; 71. Second fixing hole; 72. Second fixing block; 73. Second bracket; 74. Second connecting plate; 8. Buckle structure; 81. Buckle; 82. Buckle hole. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, many specific details are set forth so that those skilled in the art can more fully understand and implement the present invention. However, it is obvious to those skilled in the art that the implementation of the present invention may not have some of these specific details. In addition, it should be understood that the present invention is not limited to the specific embodiments described. On the contrary, any combination of the features and elements described below may be considered to implement the present invention, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments and advantages are for illustrative purposes only and should not be regarded as elements or limitations of the claims unless clearly stated in the claims.

[0022] In the following, terms such as "first", "second", etc. are used to describe the elements of the present application. These terms are only used to distinguish the various elements, and are not used to limit the nature, order or number of these elements. The terms "including" and "having" are used to express an open-ended inclusive meaning, and mean that there may be additional elements / components in addition to the listed elements / components.

[0023] As mentioned in the background technology, in the prior art, the connector of the electrical module is usually connected to the PCB board only by welding, and is not connected to the housing of the electrical module. When the PCB board is provided with multiple connectors, there is not enough space between two adjacent connectors to arrange the fixing structure that connects the connector to the housing. During the use of the connector, the two ends of the housing may be heated and warped due to uneven force. In this regard, the utility model proposes an electrical module. The electrical module will be described in detail below.

[0024] In the description of the present utility model, "first direction" is used to indicate the direction perpendicular to the extended surface of the PCB board, that is, when the electrical module is placed horizontally, the surface extended by the PCB board is a horizontal surface, and the first direction can be called the up-down direction. When the electrical module is placed vertically, the surface extended by the PCB board is a vertical surface, and the first direction can also be called the front-to-back direction or the left-to-right direction. In this article, directions such as "up", "down", "above", "below", "above", and "below" are relative to the horizontal placement of the electrical module, where the direction closer to the ground is "down", and vice versa.

[0025] Figure 1 FIG. 2 shows an electrical module according to an embodiment of the present utility model. Figure 1 As shown, the electrical module may include a housing portion 1, a cover portion 2, a PCB board 4 and at least one connector 5. The housing portion 1 and the cover portion 2 may constitute the outer shell of the electrical module, wherein the housing portion 1 has a concave shape to form a part of the accommodating cavity 3, and the cover portion 2 has an upward concave shape to form another part of the accommodating cavity 3, so that the cover portion 2 can enclose and form a complete accommodating cavity 3 after being connected to the housing portion 1. The PCB board 4 is arranged in the accommodating cavity 3 (that is, arranged in the housing) and connected to the housing portion 1. The PCB board 4 is provided with a single-layer or multi-layer circuit and carries at least one ( Figure 1 The PCB 4 is provided with four connectors 5, which are used to electrically connect the circuit on the PCB 4 with active devices such as power supplies and power-consuming devices outside the PCB 4, for example, through cables, so as to provide current or signal flow. In order to be connected with, for example, a plug with a cable, the connector 5 is advantageously only partially disposed in the accommodating cavity 3, while the other part is exposed from the accommodating cavity 3.

[0026] For this reason, Figure 1 As shown, at least one of the housing portion 1 and the cover portion 2 may be provided with an opening on the side wall of their local connection to expose the pins of the connector 5 for external active devices to be connected to the connector 5 via cables. Figure 1 In the embodiment shown in , the cover body 2 is configured so that the main body of the upper cover of the cover body 2 forming the accommodating cavity 3 is partially raised upward on one side, so that after assembly, it can be retracted relative to the corresponding part of the housing part 1 to form an opening allowing the connector 5 to be exposed. Of course, the opening between the housing part 1 and the cover body 2 can also be provided in other ways. For example, it is conceivable to provide such an opening by removing part of the side wall of at least one of the housing part 1 and the cover body 2.

[0027] According to the utility model, in order to improve the overall connection strength of the electrical module, especially to establish a connection at a portion between the housing portion 1 and the cover portion 2 where an opening for the connector 5 is reserved, the connector 5 can be connected to the housing portion 1 through a first fixing structure 6, and connected to the cover portion 2 through a second fixing structure 7. In this way, when the connector 5 is connected to the PCB board 4 by a fixing method such as welding as is generally known, by combining the first fixing structure 6 and the second fixing structure 7, a firm connection is formed between the cover portion 2 and the housing portion 1 and the PCB board 4, especially between the portion of the PCB board 4 where the connector 5 is provided, thereby greatly improving the structural strength of the entire electrical module.

[0028] According to an exemplary embodiment, Figure 2-3 As shown, the first fixing structure 6 and the second fixing structure 7 are both configured as snap-on connection structures. The snap-on connection structure requires less space to be set up, and can be fully adapted even when more than two connectors 5 are arranged side by side in a small area on the PCB board 4.

[0029] Specifically, continue to refer to Figure 2 , the first fixing structure 6 may include a first fixing hole 61 and a first fixing block 62 adapted to the first fixing hole 61. The first fixing hole 61 may be a through hole provided on the connector 5, especially provided on the side wall of the connector 5, and the first fixing block 62 may extend from the housing portion 1, and can be snapped into the first fixing hole 61 when the PCB board 4 is connected to the housing portion 1, thereby hooking the connector 5. Similarly, the second fixing structure 7 may include a second fixing hole 71 and a second fixing block 72 adapted to the second fixing hole 71. The second fixing hole 71 may be a through hole provided on the connector 5, especially provided on the side wall of the connector 5, and the second fixing block 72 may extend from the cover portion 2, and can be snapped into the second fixing hole 71 when the cover portion 2 is covered on the housing portion 1 from above the PCB board 4 and the connector 5, thereby hooking the connector 5.

[0030] To this end, the first fixing block 62 and the second fixing block 72 can each have an inclined surface facing the corresponding first fixing hole 61 or the second fixing hole 71, so as to facilitate entering and exiting the corresponding fixing hole. Advantageously, as shown in the figure, the first fixing block 62 and the second fixing block 72 can have an overall triangular outer profile.

[0031] It is understandable that it is also conceivable to arrange the first fixing block on the connector 5 and the first fixing hole in the housing portion, and / or to arrange the second fixing block on the connector 5 and the second fixing hole in the cover portion 2.

[0032] According to Figure 2In the preferred embodiment shown, the first fixing hole 61 and the second fixing hole 71 are arranged side by side in the first direction (i.e., the up-down direction) in the same side wall 51 of the connector 5. The first fixing hole 61 is arranged on the side of the side wall 51 closer to the housing portion 1, and the second fixing hole 71 is arranged on the side of the side wall 51 closer to the cover portion 2. Of course, the first fixing hole 61 and the second fixing hole 71 can also be arranged in the side wall 51 of the connector 5 in a staggered manner or even side by side in a second direction perpendicular to the first direction; or, the first fixing hole 61 and the second fixing hole 71 can also be arranged on different side walls of each connector 5, respectively.

[0033] In order to respectively set the first fixing block 62 and the second fixing block 72, a first bracket 63 is extended from the housing portion 1 to the side where the cover portion 2 is located, and the side of the first bracket 63 is used to carry the first fixing block 62. A second bracket 73 is extended from the cover portion 2 to the side where the housing portion 1 is located, and the side of the second bracket 73 is used to carry the second fixing block 72. Here, it can be understood that the first bracket 63 and the second bracket 73 can be slightly deformed to facilitate the engagement and disengagement of the first or second fixing block they carry with the corresponding first or second fixing hole.

[0034] In the above embodiment, a plurality of connectors 5 are arranged side by side at intervals on the PCB board 4 of the electrical module. In this case, the first bracket 63 and the second bracket 73 may be of a split configuration, that is, between every two adjacent connectors 5, the first first bracket 63 is arranged beside the first fixing hole 61 on the side wall 51 of one of the connectors 5, and the second first bracket 63 is arranged beside the first fixing hole 61 on the side wall 51 of the other connector 5. The first second bracket 73 is arranged beside the second fixing hole 71 on the side wall 51 of one of the connectors 5, and the second second bracket 73 is arranged beside the second fixing hole 71 on the side wall 51 of the other connector 5.

[0035] When the cover 2 and the housing 1 are made of plastic or other materials by injection molding, the first bracket 63 and the second bracket 73 can be advantageously formed integrally with the housing 1 and the cover 2, respectively. Here, the two first brackets 63 located between two adjacent connectors 5 can be connected by a first connecting plate 64, so that the first connecting plate 64 and the two first brackets 63 are integrally formed into a substantially U-shaped frame shape. Similarly, the two second brackets 73 located between two adjacent connectors 5 can be connected by a second connecting plate 74, so that the second connecting plate 74 and the two second brackets 73 are integrally formed into a substantially U-shaped frame shape.

[0036] In order to maintain the relative positions between the connector 5 and the cover portion 2 and the housing portion 1, as shown in FIG. Figure 3As shown, in the assembled state of the electrical module, the lower end of the first bracket 63 can abut against the upper end of the second bracket 73. Advantageously, the first connecting plate 64 can extend beyond the first bracket 63 along the first direction, that is, the length of the first connecting plate 64 along the first direction is greater than the length of the first bracket 63. In this way, in the assembled state of the electrical module, the first connecting plate 64 can overlap with the second connecting plate 74, thereby further ensuring the relative position of the connector 5 with the cover body 2 and the housing 1, respectively. Moreover, by overlapping the first connecting plate 64 and the second connecting plate 74, the relative position of the connector 5 in the plane (i.e., the horizontal plane) where the PCB board 4 is located can be limited at the same time, reducing the warping of the connector 5 caused by uneven force and heat.

[0037] In the above embodiment, the connector 5 can be arranged so that at least a portion thereof extends out of the PCB board 4, and the first fixing hole 61 and the second fixing hole 71 are provided at the portion of the side wall 51 thereof extending out of the PCB board 4. In this way, the first bracket 63 and the first connecting plate 64 can pass over the edge of the PCB board 4 so that the first fixing block 62 can be inserted into the first fixing hole 61.

[0038] For the connection between the cover part 2 and the housing part 1, especially the connection between them at the position where the opening for the connector 5 does not need to be provided, such as Figure 1 As shown, the cover 2 and the housing 1 can be fixed by a plurality of buckle structures 8 arranged at intervals on the periphery of the two. It can be understood that the cover 2 and the housing 1 can also be fixed by welding or other buckling methods.

[0039] Specifically, Figure 1 As shown, each buckle structure 8 may include a buckle 81 and a buckle hole 82. A plurality of buckles 81 are arranged at intervals (preferably at equal intervals) on the periphery of the housing portion 1, and a plurality of buckle holes 82 are arranged at intervals (preferably at equal intervals) on the periphery of the cover portion 2 and correspond to the plurality of buckles 81 one by one. In this way, when the cover portion 2 is covered on the housing portion 1, the buckles 81 are buckled in the buckle holes 82.

[0040] It can be understood that when it is easier to set buckles on the cover body 2 than on the shell body 1 or when it is easier to set buckle holes on the shell body 1 than on the cover body 2, the buckle holes can be set at intervals or equal intervals on the periphery of the shell body 1, and the buckles can be correspondingly set at intervals or equal intervals on the periphery of the cover body 2.

[0041] For those skilled in the art, various modifications and variations may be made to the embodiments disclosed above without departing from the scope or spirit of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from the practice of the utility model disclosed in this specification. This specification and the examples disclosed therein should be considered to be illustrative only, and the true scope of the utility model is specified by the appended claims and their equivalents.

Claims

1. An electrical module, comprising: Housing portion (1); A cover portion (2), the cover portion (2) being connected to the housing portion (1) to enclose and form a containing cavity (3); A PCB board (4) disposed in the accommodating cavity (3); and at least one connector (5), each of the connectors (5) being carried by the PCB board (4) and at least partially located in the accommodating cavity (3); It is characterized in that The connector (5) is connected to the housing portion (1) via a first fixing structure (6), and is connected to the cover portion (2) via a second fixing structure (7).

2. The electrical module according to claim 1, characterized in that: The first fixing structure (6) and the second fixing structure (7) are both configured as snap-on connection structures.

3. The electrical module according to claim 2, characterized in that: The first fixing structure (6) comprises a first fixing hole (61) arranged on the connector (5) and a first fixing block (62) arranged on the shell portion (1) and capable of being snapped into the first fixing hole (61); the second fixing structure (7) comprises a second fixing hole (71) arranged on the connector (5) and a second fixing block (72) arranged on the cover portion (2) and capable of being snapped into the second fixing hole (71).

4. The electrical module according to claim 3, characterized in that: The first fixing hole (61) and the second fixing hole (71) are arranged side by side in a same side wall (51) of the connector (5) along a first direction perpendicular to the PCB board (4); the first fixing block (62) is supported by a first bracket (63) extending from the shell portion (1); and the second fixing block (72) is supported by a second bracket (73) extending from the cover portion (2).

5. The electrical module according to claim 4, characterized in that: More than two connectors (5) are arranged side by side at intervals on the PCB board (4), and the first fixing hole (61) and the second fixing hole (71) are arranged in the mutually opposite side walls (51) of each two adjacent connectors (5).

6. The electrical module according to claim 5, characterized in that Two first brackets (63) and two second brackets (73) disposed between each two adjacent connectors (5) are connected via a first connecting plate (64) and a second connecting plate (74) to form U-shaped frames.

7. The electrical module according to claim 6, characterized in that: The first bracket (63) and the second bracket (73) are configured to abut against each other, and the first connecting plate (64) extends beyond the first bracket (63) to partially overlap with the second connecting plate (74).

8. The electrical module according to any one of claims 4 to 7, characterized in that: At least a portion of the connector (5) extends out of the PCB board (4), and the first fixing hole (61) and the second fixing hole (71) are arranged on the portion of the side wall (51) that extends out of the PCB board (4).

9. The electrical module according to any one of claims 1 to 7, characterized in that: The cover portion (2) and the shell portion (1) are fixed via a plurality of snap-fit ​​structures (8) arranged at intervals on the periphery of both portions.

10. The electrical module according to claim 9, characterized in that The buckle structure (8) comprises a buckle (81) and a buckle hole (82) corresponding to the buckle (81) one by one, wherein one of the buckle (81) and the buckle hole (82) is arranged on the periphery of the cover body (2), and the other is arranged on the periphery of the shell body (1).

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