CN218977020U

CN218977020U - Filter fixing shell

Info

Publication number: CN218977020U
Application number: CN202223119842.8U
Authority: CN
Inventors: 刘苏河; 孙力; 郭佳炜
Original assignee: Fuba Automotive Antenna Suzhou Co ltd
Current assignee: Fuba Automotive Antenna Suzhou Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-05-05
Anticipated expiration: 2032-11-23

Abstract

The utility model relates to a filter fixing shell which comprises an upper shell, a lower shell and a connecting piece, wherein the upper shell and the lower shell are detachably connected, an upper cavity is formed in the bottom of the upper shell, a lower cavity is formed in the top of the lower shell, the upper cavity and the lower cavity jointly form an installation space for installing a circuit board, one end of the connecting piece is arranged in the installation space, the other end of the connecting piece extends out of the installation space and is used for being connected to a sheet metal of a vehicle body, fixing grooves are formed in the two opposite sides of the inner side wall of the lower shell, the fixing grooves extend in the vertical direction, and two opposite sides of the connecting piece are clamped in the fixing grooves on the two sides. The utility model can stably connect the filter fixing shell to the metal plate of the vehicle body, has simple structure, can realize quick positioning and installation, can prevent the metal plate of the vehicle body from deforming, simplifies the production process, and ensures that the filter fixing shell is not easy to crack during installation, thereby improving the installation success rate, improving the working efficiency and reducing the production cost while ensuring the torque to reach the standard.

Description

Filter fixing shell

Technical Field

The utility model belongs to the technical field of automobile electronic equipment, and particularly relates to a filter fixing shell.

Background

At present, the filter is one of important parts of various electronic products, and is used as a frequency selecting device, so that specific frequency components in signals can pass through, other frequency components can be greatly attenuated, interference noise can be filtered or spectrum analysis and the like can be carried out by utilizing the frequency selecting function of the filter, the filter can not only ensure the stable and reliable operation of the electronic products, but also reduce the mutual interference influence among the electronic products. At present, the filter has wide application in automobiles, and is an important component part of an automobile electronic system.

In the prior art, in order to be grounded with a vehicle body, a filter is usually installed on a metal plate of a rear door of an automobile, and a welding process can be specifically adopted during installation, but the metal plate at an installation position is easily caused to be welded and deformed by welding, and some parts cannot be welded. Of course, a method of fixing the filter to the metal plate of the automobile by bolts has also been proposed, but in order to ensure the reliability and stability of the filter mounting, it is necessary to make the torque of the filter 10n·m when the bolt connection method is adopted. Because the shell of the filter is made of plastic materials, in order to ensure that the torque reaches the standard, the shell is easy to crack when the bolt is screwed, the installation quality is affected, the filter is scrapped, reinstallation is needed, the working efficiency is greatly reduced, and the production cost is increased.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a filter fixing shell which is simple in structure and good in installation stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a filter fixed shell, includes casing, lower casing, last casing, lower casing between detachably connect, the bottom of going up the casing seted up the cavity, the top of lower casing seted up down the cavity, last cavity, lower cavity form the installation space that is used for installing the circuit board jointly, the fixed shell still include the connecting piece, the one end setting of connecting piece be in the installation space, the other end of connecting piece stretch out the installation space and be used for connecting on automobile body panel beating, the opposite sides of the inside wall of lower casing seted up the fixed slot, the fixed slot extend along vertical direction, the opposite both sides part card of connecting piece establish in both sides the fixed slot in.

Preferably, the connecting piece include first connecting portion, second connecting portion and third connecting portion, first connecting portion, third connecting portion extend along the horizontal direction, the second connecting portion extend along vertical direction, first connecting portion with the top of second connecting portion be connected, third connecting portion with the bottom of second connecting portion be connected, the both sides of second connecting portion card respectively establish in both sides the fixed slot.

Still preferably, the lower casing on still set up the logical groove that runs through its top and bottom, logical groove have the orientation lower casing tip opening, logical groove with lower cavity between cut off mutually through the partition portion, first connecting portion be located installation space in, the fixed slot set up on the inside wall of logical groove, second connecting portion be located logical inslot and block establish in the fixed slot, third connecting portion part stretch out the opening of logical groove.

Still further preferably, the opposite sides of the top end of the second connecting portion have hooks, and the third connecting portion is located between the hooks on the two sides, and the hooks on the two sides hook the partition portion respectively.

Still more preferably, the third connecting portion is provided with a through hole penetrating through the upper side and the lower side of the third connecting portion, and the through hole is located on a portion of the third connecting portion extending out of the opening of the through groove.

Further preferably, the connecting piece further comprises a positioning part, wherein the positioning part extends along the vertical direction, and the positioning part is connected to the bottom of the second connecting part.

Still more preferably, the positioning portion is sheet-shaped.

Still more preferably, the positioning portion and the second connecting portion are integrally formed.

Still more preferably, the connector is made of a metal material.

Preferably, a buckle is arranged at the bottom of the lower shell, and the buckle extends along the vertical direction.

Further preferably, the buckle is integrally formed with the lower housing.

Further preferably, the upper shell and the lower shell are both made of plastic materials.

Preferably, one of the upper shell and the lower shell is provided with a clamping part, the other one of the upper shell and the lower shell is provided with a clamping groove, and the clamping part can be clamped in the clamping groove, so that the upper shell and the lower shell are detachably connected.

Further preferably, a plurality of clamping parts and clamping grooves are provided, and the plurality of clamping parts and clamping grooves are distributed on two opposite sides of the upper shell and the lower shell.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the utility model, the filter fixing shell can be stably connected to the metal plate of the vehicle body through the connecting piece, the structure is simple, the rapid positioning and installation can be realized, the welding process is not required, the deformation of the metal plate of the vehicle body can be prevented, the production process is simplified, the filter fixing shell is not easy to crack during the installation, the installation success rate is improved while the torque is ensured to reach the standard, the installation quality is improved, the working efficiency is improved, the production cost is reduced, the operation is simple, and the implementation is easy.

Drawings

Fig. 1 is a schematic perspective view of a filter fixing case and a vehicle body sheet metal after installation;

fig. 2 is a schematic perspective view of another view angle after the filter fixing case and the metal plate of the vehicle body are installed;

fig. 3 is a schematic perspective view of a filter fixing case of the present embodiment;

fig. 4 is a perspective view of another view of the filter fixing case of the present embodiment;

fig. 5 is a schematic exploded perspective view of the filter fixing case of the present embodiment;

fig. 6 is a schematic perspective view of the connector according to the present embodiment;

fig. 7 is a schematic perspective view of the upper housing of the present embodiment;

fig. 8 is a schematic perspective view of the lower housing of the present embodiment.

In the above figures:

1. an upper housing; 11. an upper cavity; 12. a clamping part; 2. a lower housing; 21. a lower cavity; 22. a through groove; 23. a fixing groove; 24. a partition portion; 25. a buckle; 26. a clamping groove; 3. a connecting piece; 31. a first connection portion; 32. a second connecting portion; 33. a third connecting portion; 331. a through hole; 34. a hook part; 35. a positioning part;

8. sheet metal of a vehicle body; 81. a first fixing hole; 82. a second fixing hole; 83. positioning holes;

91. a bolt; 92. and (3) a nut.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the filter fixing case may be internally used for mounting a filter circuit board, and the filter fixing case is mounted on a vehicle body sheet metal 8. The filter fixing shell specifically comprises an upper shell 1, a lower shell 2 and a connecting piece 3, wherein the upper shell 1 and the lower shell 2 are detachably connected, and the connecting piece 3 is connected to the upper shell 1 and the lower shell 2 and detachably connected with a metal plate 8 of a vehicle body.

The following details of the components and connection relationships of the filter fixing case are described in detail:

as shown in fig. 3 to 5, the bottom of the upper housing 1 is provided with an upper cavity 11, the top of the lower housing 2 is provided with a lower cavity 21, and when the upper housing 1 and the lower housing 2 are mounted together, the upper cavity 11 and the lower cavity 21 together form a mounting space in which a filter circuit board can be mounted.

Specifically: as shown in fig. 7 and 8, one of the upper and lower cases 1, 2 has a locking portion 12, and the other of the upper and lower cases 1, 2 has a locking groove 26, and the locking portion 12 is locked in the locking groove 26 to detachably connect the upper and lower cases 1, 2; the clamping parts 12 and the clamping grooves 26 are provided in a plurality, and the clamping parts 12 and the clamping grooves 26 are distributed on two opposite sides of the upper shell 1 and the lower shell 2.

In this embodiment: the side part of the upper shell 1 is provided with a clamping part 12, the side part of the lower shell 2 is provided with a clamping groove 26, and the clamping part 12 can be clamped in the clamping groove 26 so as to detachably connect the upper shell 1 and the lower shell 2; the clamping parts 12 are arranged in four, the four clamping parts 12 are distributed on two opposite sides of the upper shell 1, the clamping grooves 26 are also arranged in four, the four clamping grooves 26 are distributed on two opposite sides of the lower shell 2, and one clamping part 12 is matched with one clamping groove 26 in a clamping way.

As shown in fig. 5 and 8, the lower housing 2 is further provided with a through slot 22, the through slot 22 penetrates through the top and the bottom of the lower housing 2, the through slot 22 is provided with an opening facing the end of the lower housing 2, and the through slot 22 and the lower cavity 21 are separated by a separation part 24; the inner side wall of the through groove 22 is provided with fixing grooves 23, the fixing grooves 23 extend along the vertical direction, the fixing grooves 23 are close to the partition parts 24, the fixing grooves 23 are two, and the two fixing grooves 23 are respectively positioned on two opposite sides of the inner side wall of the through groove 22.

The upper shell 1 and the lower shell 2 are both made of plastic materials; the bottom of the lower housing 2 is also provided with a catch 25, the catch 25 extending in a vertical direction. In this embodiment: the buckle 25 is integrally formed with the lower housing 2, i.e., the buckle 25 is integrally injection molded with the lower housing 2.

As shown in fig. 5, one end of the connecting piece 3 is arranged in the installation space formed by the upper shell 1 and the lower shell 2, the other end of the connecting piece 3 extends out of the installation space and is used for being connected to the metal plate 8 of the automobile body, the two opposite sides of the inner side wall of the lower shell 2 are provided with fixing grooves 23, the fixing grooves 23 extend along the vertical direction, and two opposite sides of the connecting piece 3 are partially clamped in the fixing grooves 23 at the two sides; the connecting member 3 is made of a metal material. Specifically:

as shown in fig. 6, the connector 3 includes a first connecting portion 31, a second connecting portion 32, and a third connecting portion 33, the first connecting portion 31 is connected to the top end of the second connecting portion 32, and the third connecting portion 33 is connected to the bottom end of the second connecting portion 32, specifically: the first connecting part 31 and the third connecting part 33 extend along the horizontal direction, the second connecting part 32 extends along the vertical direction, the first connecting part 31 is connected with the top end of the second connecting part 32, and the third connecting part 33 is connected with the bottom end of the second connecting part 32; the first connecting part 31 is located in the installation space formed by the upper shell 1 and the lower shell 2, the second connecting part 32 is located in the through groove 22, two sides of the second connecting part 32 are respectively clamped in the fixed grooves 23 on two sides, the third connecting part 33 is partially located in the through groove 22 and partially extends out of the opening of the through groove 22, the third connecting part 33 is provided with a through hole 331 penetrating through the upper side and the lower side of the through hole 331, and the through hole 331 is located on the part of the third connecting part 33 extending out of the opening of the through groove 22.

In order to further improve the installation stability of the connecting piece 3, the connecting piece 3 further includes a hook portion 34, two opposite sides of the top end of the second connecting portion 32 are respectively provided with the hook portion 34, the third connecting portion 33 is located between the hook portions 34 on two sides, and the hook portions 34 on two sides respectively hook the partition portion 24 of the lower housing 2.

In addition, the connecting piece 3 further comprises a positioning part 35, and the positioning part 35 is connected to the bottom of the second connecting part 32; the positioning portion 35 extends in the vertical direction, and the positioning portion 35 is preferably in a sheet shape. In this embodiment, the positioning portion 35 is integrally formed with the second connecting portion 32, that is, the positioning portion 35 is formed by partially bending the second connecting portion 32.

The following describes in detail the connection relationship between the filter fixing case and the vehicle body sheet metal 8:

the first fixed orifices 81, the second fixed orifices 82 and the locating holes 83 are formed in the metal plate 8 of the automobile body, the first fixed orifices 81, the locating holes 83 and the second fixed orifices 82 are sequentially formed in the horizontal direction, when the filter fixing shell is connected to the metal plate 8 of the automobile body, as shown in fig. 1 and 2, the locating part 35 of the connecting piece 3 is inserted into the locating holes 83, the buckle 25 of the lower shell 2 is clamped in the second fixed orifices 82, the pre-fixing effect is achieved, the through holes 331 of the connecting piece 3 are aligned with the first fixed orifices 81, nuts 92 are fixedly arranged at the first fixed orifices 81, bolts 91 sequentially penetrate through the through holes 331 of the connecting piece 3, the first fixed orifices 81 and are matched with the nuts 92, and the final fixing effect is achieved after the bolts 91 are screwed.

In the process of tightening the bolt 91, the filter fixing shell can be driven to rotate under the action of friction force, but because the positioning part 35 of the connecting piece 3 is inserted into the positioning hole 83, the positioning part 35 can play a role in stopping rotation, and no additional stress effect is generated on the upper shell 1 and the lower shell 2, so that the lower shell 2 can be effectively prevented from cracking due to overlarge local stress, the reliability and the stability of installation are ensured, and the required torque can be ensured to reach the standard.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. The utility model provides a filter fixed shell, includes casing, lower casing, last casing, lower casing between detachably connect, the bottom of going up the casing seted up the cavity, the top of lower casing seted up down the cavity, last cavity, lower cavity form the installation space that is used for installing the circuit board jointly, its characterized in that: the fixing shell also comprises a connecting piece, one end of the connecting piece is arranged in the installation space, the other end of the connecting piece extends out of the installation space and is used for being connected to a metal plate of an automobile body, fixing grooves are formed in the two opposite sides of the inner side wall of the lower shell, the fixing grooves extend in the vertical direction, and the two opposite sides of the connecting piece are clamped in the fixing grooves on the two sides.

2. The filter fixing case according to claim 1, wherein: the connecting piece include first connecting portion, second connecting portion and third connecting portion, first connecting portion, third connecting portion extend along the horizontal direction, second connecting portion extend along vertical direction, first connecting portion with the top of second connecting portion be connected, third connecting portion with the bottom of second connecting portion be connected, the both sides of second connecting portion block respectively and establish in both sides the fixed slot in.

3. The filter fixing case according to claim 2, wherein: the lower shell on still set up the logical groove that runs through its top and bottom, logical groove have the orientation lower shell tip the opening, logical groove with lower cavity between cut off mutually through the partition portion, first connecting portion be located installation space in, the fixed slot set up on the inside wall of logical groove, the second connecting portion be located logical inslot and block establish the fixed slot in, third connecting portion part stretch out the opening of logical groove.

4. A filter fixing case according to claim 3, wherein: the two opposite sides of the top end of the second connecting part are respectively provided with a hook part, the third connecting part is positioned between the hook parts at the two sides, and the hook parts at the two sides respectively hook the partition parts.

5. A filter fixing case according to claim 3, wherein: the third connecting part is provided with a through hole penetrating through the upper side and the lower side of the third connecting part, and the through hole is positioned on the part of the third connecting part extending out of the opening of the through groove.

6. The filter fixing case according to claim 2, wherein: the connecting piece also comprises a positioning part, wherein the positioning part extends along the vertical direction, and the positioning part is connected to the bottom of the second connecting part.

7. The filter fixing case according to claim 6, wherein: the positioning part is sheet-shaped; the positioning part and the second connecting part are integrally formed.

8. The filter fixing case according to claim 1, wherein: the bottom of the lower shell is provided with a buckle, and the buckle extends along the vertical direction; the buckle and the lower shell are integrally formed.

9. The filter fixing case according to claim 1, wherein: one of the upper shell and the lower shell is provided with a clamping part, the other one of the upper shell and the lower shell is provided with a clamping groove, and the clamping part can be clamped in the clamping groove to enable the upper shell and the lower shell to be detachably connected.

10. The filter fixing case according to claim 9, wherein: the clamping parts and the clamping grooves are arranged at a plurality of positions, and the clamping parts and the clamping grooves are distributed on two opposite sides of the upper shell and the lower shell.