CN218887638U

CN218887638U - Electronic module sealing connection assembly and electronic module assembly

Info

Publication number: CN218887638U
Application number: CN202222420171.2U
Authority: CN
Inventors: 曹豪杰; 梁海军
Original assignee: Beijing Idriverplus Technologies Co Ltd
Current assignee: Beijing Idriverplus Technologies Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-04-18
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses an electronic module sealing connection assembly and electronic module assembly, wherein this electronic module sealing connection assembly includes: the sealed housing with cavity, the cavity and electronic module phase-match, sealed housing is equipped with the link opening in the position that corresponds to electronic module's link, and external connector, external connector includes the plug connector, the insulating boss of being connected with the plug connector and be located the sealing member of keeping away from the insulating boss one end of plug connector, when the plug connector passes the link opening and is connected with electronic module's link, insulating boss and the tight contact of link opening, sealing member and the tight contact in sealed housing region around the link opening. The utility model provides an electronic module sealing connection subassembly is small, very is favorable to arranging of the limited miniaturized vehicle equipment of electronic module assembly in inner space, and sealing performance is good simultaneously, has guaranteed electronic module's waterproof, dustproof grade.

Description

Electronic module sealing connection assembly and electronic module assembly

Technical Field

The utility model relates to an electronic module's equipment field, in particular to electronic module sealing connection subassembly and electronic module assembly.

Background

The controller and the sensor are widely applied to vehicle equipment such as unmanned vehicles, unmanned ground washing vehicles and the like, and are used for sensing the motion state of the vehicle and the surrounding environment, enabling an automatic driving system to calculate and make decisions and ensuring the normal operation of the vehicle.

The controllers and sensors used by the manufacturers of the vehicle equipment are basically modular products, i.e., electronic modules, produced by upstream enterprises when assembling the products.

Due to the difference between vehicle devices, manufacturers generally need to modify electronic modules according to the specific conditions of vehicles when assembling products using the electronic modules, so as to meet the use requirements of the vehicle devices.

Taking a depth camera module as an example, when a manufacturer purchases the depth camera module from an upstream enterprise and assembles vehicle equipment, such as a ground washing vehicle, with the depth camera module, the whole depth camera module needs to be physically protected so as to improve the physical properties of the depth camera module, such as wear resistance, pressure resistance and the like. In addition, because the floor cleaning vehicle needs water and the environmental humidity is very big among the operational environment during operation, consequently, still need the depth camera module to possess waterproof, dustproof function.

For this reason, a currently common technology is to fix the whole depth camera module in a sealed housing to form a depth camera assembly, as shown in fig. 1, a switching harness 12 is added inside the housing 10, one end of the harness 12 is connected to a connector of the depth camera module 11, and the other end of the harness 12 is connected to a waterproof connector 13 on the housing 10, so that the depth camera module 11 is sealed in the housing 10, and therefore, on one hand, the depth camera module can be physically protected, and on the other hand, the dustproof and waterproof grade of the whole depth camera module can also be ensured.

However, in the prior art, since an adapter harness needs to be added in the sealed housing, the depth camera assembly has a larger volume, and a large-volume depth camera assembly needs a larger installation space, which is not friendly to a small-sized vehicle device with a smaller internal space. In addition, adding a relay harness within the housing also increases the cost of the depth camera assembly.

Other electronic modules have the same problem when assembling vehicle equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic module seal connection subassembly to when protecting electronic module, reduce the volume of electronic module assembly.

An object of the second aspect of the present invention is to provide an electronic module assembly including the electronic module sealing and connecting assembly.

In order to achieve the above object, the utility model discloses a first aspect provides an electronic module sealing connection assembly, include:

a hermetic case having a chamber for accommodating and fixing the electronic module, the chamber being matched with the electronic module, the hermetic case being provided with a connection terminal opening at a position corresponding to a connection terminal of the electronic module, an

Through the link opening is followed sealed casing outside with electronic module's link lug connection's external connector, external connector including be used for with plug connector that electronic module's link is connected, with insulating boss that the plug connector is connected and be located keep away from the plug connector the sealing member of insulating boss one end, insulating boss with link opening phase-match works as the plug connector passes the link opening with when electronic module's link is connected, insulating boss with link opening close contact, the sealing member with sealed casing region close contact around the link opening.

In some embodiments, the seal includes a seal plate having a securing hole for securing it to the seal housing, the seal housing having a threaded hole that mates with the securing hole.

In some embodiments, the sealing member further includes a first annular protrusion on the sealing plate at the periphery of the insulation boss, a first annular groove matching with the first annular protrusion is formed on the sealing housing at the periphery of the connection end opening, and the first annular protrusion is embedded in the first annular groove when the plug connector is connected with the connection end of the electronic module through the connection end opening.

In some embodiments, when the first annular protrusion is inserted into the first annular groove, there is a first resilient sealing layer structure between the first annular protrusion and the first annular groove.

In some embodiments, the single-sided gap between the first annular projection and the first annular groove is 0.3-1mm.

In some embodiments, the chamber interior wall is formed with vertical ribs for securing the electronic module.

In some embodiments, the sealed housing includes a lid and a lower housing, the side and bottom walls of the chamber being located in the lower housing, and the top wall of the chamber being located in the lid.

In some embodiments, the lower housing upper portion has a second annular groove surrounding the cavity, and the cover has a second annular projection that mates with the second annular groove, the second annular projection fitting into the second annular groove when the lower housing and cover are assembled into the sealed housing.

In some embodiments, a second resilient sealing layer structure is formed between the second annular embossment and the second annular groove when the second annular embossment is embedded in the second annular groove.

In some embodiments, the cover is provided with heat dissipation fins.

A second aspect of the present invention provides an electronic module assembly comprising the electronic module sealing and connecting assembly of the first aspect and being fixed to an electronic module in a sealing housing.

The embodiment of the utility model provides an electronic module seal connection subassembly, through set up the link opening on sealed casing, make electronic module's link directly be connected with external connector, need not additionally to increase the switching pencil in sealed casing, and sealed casing's cavity and electronic module phase-match to the volume of sealed casing and electronic module assembly has been reduced greatly. It is verified that to for example specific depth camera module, use the utility model discloses electronic module sealing connection subassembly that provides can make seal housing's volume reduce more than 30%. This is very advantageous for the arrangement of miniaturized vehicle equipment in which the internal space of the electronic module assembly is limited.

Furthermore, the embodiment of the utility model provides an electronic module sealing connection subassembly's insulating boss with link opening phase-match to set up the sealing member, worked as the plug connector passes the link opening with when electronic module's link is connected, insulating boss can with link opening close contact, the sealing member with seal housing area around the link opening can close contact, thereby has guaranteed the leakproofness of link opening part, has guaranteed electronic module's waterproof, dustproof grade.

Moreover, because the switching wire harness is not required to be additionally arranged in the sealed shell, the cost of the electronic module assembly is reduced on the one hand, the risk of internal failure is also reduced on the other hand, and the later maintenance is more convenient.

Drawings

FIG. 1 is a schematic view of a prior art electronic module sealing arrangement;

fig. 2 is a schematic structural diagram of a sealed housing according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an external connector according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a lower casing of a sealed casing according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a cover body of a sealed housing according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an external structure of an electronic module assembly according to an embodiment of the present invention;

fig. 7 is a perspective view of an electronic module assembly according to an embodiment of the present invention.

Detailed Description

In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 2-5, an embodiment of the present invention provides an electronic module sealing connection assembly, including:

a sealing housing 21 having a cavity for receiving and fixing the electronic module, wherein the cavity is matched with the electronic module, the sealing housing 21 is provided with connection terminal openings 22 at positions corresponding to the connection terminals of the electronic module, an

External connector 30 directly connected with the connection end of the electronic module from the outside of sealed housing 21 through connection end opening 22, external connector 30 includes plug connector 31 for being connected with the connection end of the electronic module, insulating boss 32 connected with plug connector 31 and sealing member located at one end of insulating boss 32 far away from plug connector 31, insulating boss 32 matches with connection end opening 22, when plug connector 31 passes through connection end opening 22 to be connected with the connection end of the electronic module, insulating boss 32 is in tight contact with connection end opening 22, and the sealing member is in tight contact with the sealed housing area around connection end opening 22.

The electronic module sealing connection assembly provided by the embodiment enables the connection end of the electronic module to be directly connected with an external connector by arranging the connection end opening 22 on the sealing shell 21, a switching wire harness does not need to be additionally arranged in the sealing shell, and the cavity of the sealing shell 21 is matched with the electronic module, so that the volumes of the sealing shell 21 and the electronic module assembly are greatly reduced. This is very advantageous for the arrangement of miniaturized vehicle equipment in which the internal space of the electronic module assembly is limited.

In addition, the insulating boss 32 of the external connector 30 is matched with the connecting end opening 22, and a sealing member is provided, when the plug connector 31 passes through the connecting end opening 22 to be connected with the connecting end of the electronic module, the insulating boss 32 can be tightly contacted with the connecting end opening 22, and the sealing member can be tightly contacted with the sealing shell area around the connecting end opening 22, so that the sealing property of the connecting end opening 22 is ensured, and the waterproof and dustproof grade of the electronic module is ensured.

Moreover, because the switching wire harness is not required to be additionally arranged in the sealing shell 21, on one hand, the cost of the electronic module assembly is reduced, on the other hand, the risk of internal switching failure is also reduced, and the later maintenance is more convenient.

The utility model discloses in, seal housing 21's cavity and electronic module phase-match can be understood as cavity and electronic module's shape, size phase-match, and the cavity is the same or close with electronic module's shape promptly, and the size of cavity is slightly bigger than electronic module to make electronic module can install smoothly and be fixed in the cavity, and after installation electronic module, the cavity does not have too much remaining volume.

The utility model discloses in, insulating boss 32 and link opening 22 phase-match can be understood as the shape of the two, size phase-match to when plug connector 31 passed link opening 22 and is connected with electronic module's link, insulating boss 32 can with link opening 22 close contact.

In the present invention, the electronic module has a meaning generally used in the art, and may include a printed circuit board and various electronic components fixed thereto, and may specifically include a controller and a sensor, etc. that can be applied to a vehicle device, and more specifically, may be a camera module (e.g., a depth camera), etc.

In some embodiments of the present invention, the sealing member includes a sealing plate 33, the sealing plate 33 has a fixing hole 34 for fixing it to the seal housing 21, and the seal housing 21 has a threaded hole engaged with the fixing hole 34.

The sealing plate 33 can provide a larger close contact area with the sealing housing area around the connection end opening 22, thereby facilitating more isolation from water and dust. Meanwhile, the fixing hole 34 is matched with the threaded hole of the sealing shell 21, the sealing plate 33 can be fixed on the sealing shell 21 by using a threaded fastener (as shown in fig. 6), so that the sealing plate 33 is further in close contact with the sealing shell 21 on one hand, the waterproof and dustproof performances are improved, the fixing effect can be achieved on the other hand, the tight matching between the connecting end of the plug connector 31 and the connecting end of the electronic module is ensured, the plug connector is prevented from being loose, and the function and the stable performance of the electronic module are ensured. In a more specific embodiment, the thickness of the sealing plate 33 may be about 2.5mm.

In some embodiments of the present invention, the sealing member further includes a first annular protrusion 1A located on the sealing plate 33 and around the insulating boss 32, a first annular groove 1B matched with the first annular protrusion 1A is formed on the sealing housing 21 around the connecting end opening 22, and when the plug connector 31 passes through the connecting end opening 22 and is connected to the connecting end of the electronic module, the first annular protrusion 1A is embedded into the first annular groove 1B. Through the cooperation of first annular arch 1A and first annular groove 1B, can further improve the waterproof, the dustproof performance of link opening 22. Preferably, when the first annular projection 1A is fitted into the first annular groove 1B, a first elastic sealant layer structure is provided between the first annular projection 1A and the first annular groove 1B.

In particular implementations, the first elastomeric sealing layer structure may be formed in the following manner.

When the first annular protrusion 1A is not embedded in the first annular groove 1B, a certain amount of sealing silica gel is coated in the first annular groove 1B, then the first annular protrusion 1A is embedded in the first annular groove 1B, and the sealing silica gel is cured, so that an elastic silica gel layer (a first elastic sealing layer structure) is formed between the first annular protrusion 1A and the first annular groove 1B. Sealing based on silica gel, bonding, the buffer characteristic, the first elastic sealing layer structure that sets up can play sealed effect between first annular bulge 1A and first annular groove 1B on the one hand, further improve electronic module sealing connection subassembly's waterproof, dustproof performance, on the other hand can also play the fixed action, and to outside impact, vibration etc. play certain cushioning effect, further guarantee the close cooperation between plug connector 31 and electronic module's the link, it is not hard up to prevent to peg graft, thereby guarantee electronic module's function, stable performance.

The utility model discloses the sealing silica gel and the solidification technique that use all are the conventional technique in this field, the utility model discloses need not to prescribe a limit to here.

In some embodiments of the present invention, the unilateral gap between the first annular protrusion 1A and the first annular groove 1B may be 0.3-1mm. The inventor of the utility model finds that when the unilateral clearance undersize, for example, when being less than 0.3mm, sealing silica gel is difficult to fill up the gap, influences the performance on the elastic silica gel layer after the solidification. When the unilateral clearance is too large, for example, more than 1mm, the curing of the sealing silica gel is difficult, and an elastic silica gel layer is not easy to form. Moreover, the single-side gap in the range of 0.3-1mm also facilitates the operation of embedding the first annular projection 1A into the first annular groove 1B.

In a more specific embodiment, the first annular protrusion 1A may have a width of 0.5mm and a height of 0.5mm, and the first annular groove 1B may have a width of 1.5mm and a depth of 1mm.

In some embodiments of the invention, the inner wall of the chamber is formed with vertical ribs 23 for fixing the electronic module. More specifically, the side walls of the compartment each have at least one vertical rib 23 in different directions, so as to stably fix the electronic module in the compartment.

In some embodiments of the present invention, the sealed housing 21 includes a cover 21A and a lower housing 21B, the side wall and the bottom wall of the chamber are located on the lower housing 21B, and the top wall of the chamber is located on the cover 21A. More specifically, the cover 21A and the lower case 21B are respectively provided with coupling holes that are fitted to each other, internal threads may be formed in the holes, and the cover 21A and the lower case 21B may be combined to form the sealed case 21 by screw-fitting between a screw fastener and the coupling holes.

In some embodiments of the present invention, the lower housing 21B has a second annular groove 2B surrounding the cavity at the upper portion, the upper housing 21A has a second annular protrusion 2A matching with the second annular groove 2B, and the second annular protrusion 2A is embedded in the second annular groove 2B when the lower housing 21B and the cover 21A are assembled into the sealed housing 21. Similar to the function of the first annular bulge 1A and the first annular groove 1B, the cooperation of the second annular bulge 2A and the second annular groove 2B is favorable for sealing the housing, and in addition, a limiting function can be performed to prevent relative movement between the cover body 21A and the lower housing 21B.

In some embodiments of the present invention, when the second annular protrusion 2A is embedded in the second annular groove 2B, a second elastic sealing layer structure is formed between the second annular protrusion 2A and the second annular groove 2B. The formation process of the second elastic sealing layer structure is similar to that of the first elastic sealing layer structure, when the second annular protrusion 2A is not embedded into the second annular groove 2B, a certain amount of sealing silica gel is coated in the second annular groove 2B, then the second annular protrusion 2A is embedded into the second annular groove 2B, the sealing silica gel is solidified, and an elastic silica gel layer (a first elastic sealing layer structure) is formed between the second annular protrusion 2A and the second annular groove 2B, so that the sealing, fixing and other effects are achieved.

In some embodiments of the present invention, the cover 21A is provided with a heat dissipation fin 21C (as shown in fig. 6) for guiding the heat generated by the electronic module in the sealed housing 21 out of the sealed housing 21 in time, so as to prevent the electronic module from being over-heated during operation.

The embodiment of the present invention further provides an electronic module assembly, as shown in fig. 6 to 7, which includes the electronic module sealing connection assembly provided by the foregoing embodiment and the electronic module 20 fixed in the sealing housing 21.

As can be seen from fig. 7, the embodiment of the present invention provides an electronic module assembly, which has no adapting wiring harness in the sealing housing 21, and the size of the chamber in the sealing housing 21 is close to that of the electronic module 20, thereby significantly reducing the volume of the sealing housing 21 and the electronic module assembly.

For example, for a specific aobi medium light (ORBBEC) large white (DaBai) depth camera, when sealing the same by using the sealing structure mentioned in the prior art, the width of the sealing shell needs 38mm, but with the electronic module sealing and connecting assembly provided by the embodiment of the present invention, the width of the sealing shell only needs 26mm, and other dimensions are basically unchanged, so that the volume reduction of the sealing shell can reach more than 30%, which is very beneficial to the arrangement of the miniaturized vehicle equipment with limited inner space of the electronic module assembly.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted equally without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. An electronic module seal connection assembly, comprising:

2. The electronic module seal connection assembly of claim 1, wherein the seal member includes a seal plate having a securing hole for securing it to the seal housing, the seal housing having a threaded hole that mates with the securing hole.

3. The electronic module sealing and connecting assembly of claim 2 wherein the sealing member further includes a first annular projection on the sealing plate at the periphery of the insulating boss, a first annular groove matching the first annular projection is formed on the sealing housing at the periphery of the connection end opening, and the first annular projection is engaged in the first annular groove when the connector is connected to the connection end of the electronic module through the connection end opening.

4. The electronic module seal connection assembly of claim 3, wherein there is a first resilient seal layer structure between the first annular projection and the first annular groove when the first annular projection is inserted into the first annular groove.

5. The electronic module seal connection assembly of claim 3, wherein the single-sided gap between the first annular protrusion and the first annular groove is 0.3-1mm.

6. An electronic module sealing and connection assembly according to claim 1, wherein the chamber inner wall is formed with vertical ribs for fixing the electronic module.

7. The electronic module sealing and connection assembly of any of claims 1-6, wherein the sealed housing includes a cover and a lower housing, the side and bottom walls of the cavity being located in the lower housing, and the top wall of the cavity being located in the cover.

8. The electronic module sealing and connection assembly of claim 7, wherein the lower housing upper portion has a second annular groove surrounding the cavity, and the cover has a second annular protrusion that mates with the second annular groove, the second annular protrusion fitting into the second annular groove when the lower housing and cover are assembled into the sealed housing.

9. The electronic module seal connection assembly of claim 8, wherein a second resilient sealing layer structure is formed between the second annular protrusion and the second annular groove when the second annular protrusion is inserted into the second annular groove.

10. The electronic module sealing and connecting assembly of claim 7, wherein the cover has heat fins disposed thereon.

11. An electronic module assembly comprising an electronic module sealing connection assembly according to any one of claims 1-10 and an electronic module secured within the sealed housing.