CN218887638U - Electronic module sealing connection assembly and electronic module assembly - Google Patents

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

An electronic module sealing connection assembly and electronic module assembly

technical field

The utility model relates to the field of assembly of electronic modules, in particular to an electronic module sealing connection assembly and an electronic module assembly.

Background technique

Controllers and sensors are widely used in unmanned vehicles, unmanned washing vehicles and other vehicle equipment to sense the vehicle's own motion state and perceive the surrounding environment, as well as to make the automatic driving system calculate and make decisions to ensure the normal operation of the vehicle.

When the manufacturers of the above-mentioned vehicle equipment assemble their products, the controllers and sensors used are basically modular products produced by upstream companies, that is, electronic modules.

Due to the differences among vehicle equipment, when manufacturers use electronic modules to assemble products, they usually need to modify them according to the specific conditions of the vehicle to meet the requirements of the vehicle equipment.

Taking the depth camera module as an example, when a manufacturer purchases a depth camera module from an upstream company and uses it to assemble vehicle equipment, such as a washing machine, it needs to be physically protected as a whole to improve the physical properties of the depth camera module such as wear resistance and pressure resistance. performance. In addition, since the washing machine needs water to work and the ambient humidity in the working environment is very high, the depth camera module is also required to have waterproof and dustproof functions.

For this reason, the commonly used technology at present is to fix the entire depth camera module in the airtight casing to form the depth camera assembly. The other end of the wire harness 12 is connected to the waterproof connector 13 on the casing 10. Since the depth camera module 11 is sealed in the casing 10, it can be physically protected on the one hand, and the entire depth can be guaranteed on the other hand. The dustproof and waterproof level of the camera module.

However, in the prior art, due to the need to add a transfer harness in the sealed housing, the volume of the depth camera assembly is relatively large, and the large-volume depth camera assembly requires a larger installation space, which is relatively small for the original internal space. Miniaturizing vehicle equipment is not friendly. In addition, adding an adapter wire harness inside the housing will also increase the cost of the depth camera assembly.

The same problem also exists when other electronic modules are assembled into vehicle equipment.

Utility model content

The purpose of the first aspect of the utility model is to provide an electronic module sealing connection assembly, so as to protect the electronic module and reduce the volume of the electronic module assembly.

The purpose of the second aspect of the present invention is to provide an electronic module assembly including the electronic module sealing connection assembly.

In order to achieve the above purpose, the first aspect of the utility model provides an electronic module sealing connection assembly, including:

a sealed case having a chamber for accommodating and fixing the electronic module, the chamber is matched with the electronic module, and the sealed case is provided with a connecting end at a position corresponding to the connecting end of the electronic module opening, and

An external connector that is directly connected to the connection end of the electronic module from the outside of the sealed housing through the opening of the connection end, the external connector includes a plug for connecting to the connection end of the electronic module, The insulating boss connected with the plug connector and the seal at the end of the insulating boss far away from the plug connector, the insulating boss matches the opening of the connection end, when the plug connector When passing through the opening of the connecting end to connect with the connecting end of the electronic module, the insulating boss is in tight contact with the opening of the connecting end, and the sealing member is in tight contact with the sealing shell area around the opening of the connecting end .

In some embodiments, the sealing member includes a sealing plate having a fixing hole for fixing it to the sealing housing, and the sealing housing has a threaded hole cooperating with the fixing hole.

In some embodiments, the sealing member further includes a first annular protrusion on the sealing plate located on the periphery of the insulating boss, and a ring-shaped protrusion on the periphery of the opening of the connecting end is formed on the The first annular protrusion is matched with the first annular groove, and when the connector is connected to the connection end of the electronic module through the connection end opening, the first annular protrusion is embedded in the first Ring groove.

In some embodiments, when the first annular protrusion is embedded in the first annular groove, there is a first elastic sealing layer structure between the first annular protrusion and the first annular groove.

In some embodiments, the unilateral gap between the first annular protrusion and the first annular groove is 0.3-1 mm.

In some embodiments, vertical ribs for fixing the electronic module are formed on the inner wall of the cavity.

In some embodiments, the sealed housing includes a cover and a lower housing, the side wall and the bottom wall of the chamber are located in the lower housing, and the top wall of the chamber is located in the cover.

In some embodiments, the upper part of the lower housing has a second annular groove surrounding the chamber, and the cover has a second annular protrusion matching the second annular groove. When the lower housing When the casing and the cover are assembled into the sealed casing, the second annular protrusion is inserted into the second annular groove.

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

In some embodiments, heat dissipation fins are disposed on the cover.

The second aspect of the utility model provides an electronic module assembly, which includes the electronic module sealing connection assembly of the first aspect and the electronic module fixed in the sealed casing.

In the electronic module sealed connection assembly provided by the embodiment of the present invention, the connection end of the electronic module is directly connected to the external connector by setting an opening for the connection end on the sealed casing, without additionally adding a transfer harness in the sealed casing, and the sealing The cavity of the casing matches the electronic module, thereby greatly reducing the volume of the sealed casing and the electronic module assembly. It has been verified that, for example, for a specific depth camera module, the volume of the sealed housing can be reduced by more than 30% by using the electronic module sealing connection assembly provided by the embodiment of the present invention. This is very beneficial to the arrangement of electronic module assemblies in miniaturized vehicle equipment with limited internal space.

In addition, the insulating boss of the electronic module sealing connection assembly provided by the embodiment of the present invention matches the opening of the connection end, and a seal is provided. When the connecting end of the module is connected, the insulating boss can be in tight contact with the opening of the connecting end, and the seal can be in tight contact with the sealing shell area around the opening of the connecting end, thereby ensuring the tightness of the opening at the connecting end. The airtightness ensures the waterproof and dustproof level of the electronic module.

Furthermore, since there is no need to add an additional wiring harness in the sealed casing, on the one hand, the cost of the electronic module assembly is reduced, and on the other hand, the risk of internal failure is also reduced, and subsequent maintenance will be more convenient.

Description of drawings

Fig. 1 is a schematic diagram of an electronic module sealing structure in the prior art;

Fig. 2 is a schematic structural diagram of a sealed housing provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of an external connector provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a lower casing of a sealed casing provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of the cover structure of a sealed housing provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of the external structure of an electronic module assembly provided by an embodiment of the present invention;

Fig. 7 is a structural perspective view of an electronic module assembly provided by an embodiment of the present invention.

Detailed ways

In order to have a clearer understanding of the technical scheme, purpose and effect of the utility model, the specific implementation of the utility model will now be described in conjunction with the accompanying drawings.

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

A sealed case 21 having a chamber for accommodating and fixing the electronic module, wherein the chamber matches the electronic module, the sealed case 21 is provided with a connection end opening 22 at a position corresponding to the connection end of the electronic module, and

The external connector 30 directly connected to the connection end of the electronic module from the outside of the sealed housing 21 through the connection end opening 22, the external connector 30 includes a plug-in piece 31 for connecting with the connection end of the electronic module, and a plug-in piece 31 The connected insulating boss 32 and the seal at the end of the insulating boss 32 away from the connector 31, the insulating boss 32 matches the connection end opening 22, when the connector 31 passes through the connection end opening 22 and the electronic module When the connection ends are connected, the insulating boss 32 is in close contact with the connection end opening 22 , and the seal is in close contact with the sealing shell area around the connection end opening 22 .

In the electronic module sealing connection assembly provided in the above embodiments, by setting the connection end opening 22 on the sealing housing 21, the connecting end of the electronic module can be directly connected to the external connector without adding an additional transfer harness in the sealing housing, and The cavity of the sealed case 21 is matched with the electronic module, thereby greatly reducing the volume of the sealed case 21 and the electronic module assembly. This is very beneficial to the arrangement of electronic module assemblies in miniaturized vehicle equipment with limited internal space.

In addition, the insulating boss 32 of the above-mentioned external connector 30 is matched with the connection end opening 22, and a seal is provided. It can be in close contact with the opening 22 of the connection end, and the seal can be in close contact with the sealing shell area around the opening 22 of the connection end, thereby ensuring the sealing of the opening 22 of the connection end and the waterproof and dustproof level of the electronic module.

Furthermore, since there is no need to add an additional transfer wiring harness in the sealed casing 21, on the one hand, the cost of the electronic module assembly is reduced, and on the other hand, the risk of internal transfer failure is also reduced, and subsequent maintenance will be more convenient.

In the utility model, the chamber of the sealed housing 21 matches the electronic module, which can be understood as matching the shape and size of the chamber and the electronic module, that is, the shape of the chamber and the electronic module is the same or similar, and the size of the chamber It is slightly larger than the electronic module, so that the electronic module can be smoothly installed and fixed in the cavity, and after the electronic module is installed, the cavity does not have too much remaining volume.

In the present utility model, the insulating boss 32 matches the connection end opening 22, which can be understood as the shape and size of the two match, so that when the connector 31 passes through the connection end opening 22 and is connected to the connection end of the electronic module , the insulating boss 32 can be in close contact with the opening 22 of the connection end.

In the present utility model, an electronic module has a general meaning in the field, and it may include a printed circuit board and various electronic components fixed thereon, specifically, it may include controllers and sensors that can be applied to vehicle equipment, and more specifically It can be a camera module (such as a depth camera), etc.

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

The sealing plate 33 can provide a larger tight contact area with the sealing shell area around the opening 22 of the connection end, so as to be more conducive to the isolation of water and dust. At the same time, by cooperating with the threaded holes of the sealing housing 21 through the fixing hole 34, the sealing plate 33 can be fixed on the sealing housing 21 (as shown in Figure 6 ) using threaded fasteners, which further facilitates the sealing plate on the one hand. The tight contact between 33 and the sealed housing 21 improves the waterproof and dustproof performance. On the other hand, it can play a fixed role to ensure the tight fit between the connector 31 and the connecting end of the electronic module, preventing loosening of the plug, thereby ensuring The function and performance of the electronic module are stable. In a more specific embodiment, the thickness of the sealing plate 33 may be about 2.5 mm.

In some embodiments of the present utility model, the sealing member also includes a first annular protrusion 1A located on the periphery of the insulating boss 32 on the sealing plate 33, and a first annular protrusion 1A is formed on the sealing housing 21 at the periphery of the opening 22 of the connection end. The protrusion 1A matches the first annular groove 1B. When the connector 31 is connected to the connection end of the electronic module through the connection end opening 22 , the first annular protrusion 1A fits into the first annular groove 1B. Through the cooperation of the first annular protrusion 1A and the first annular groove 1B, the waterproof and dustproof performance of the connection end opening 22 can be further improved. Preferably, when the first annular protrusion 1A is embedded in the first annular groove 1B, there is a first elastic sealing layer structure between the first annular protrusion 1A and the first annular groove 1B.

In a specific implementation process, the first elastic sealing layer structure can be formed in the following manner.

When the first annular protrusion 1A is not embedded in the first annular groove 1B, apply a certain amount of sealing silicone in the first annular groove 1B, and then insert the first annular protrusion 1A into the first annular groove 1B , and the sealing silicone is solidified, and an elastic silicone layer (the first elastic sealing layer structure) is formed between the first annular protrusion 1A and the first annular groove 1B. Based on the sealing, bonding, and cushioning characteristics of silica gel, the first elastic sealing layer structure can play a sealing role between the first annular protrusion 1A and the first annular groove 1B on the one hand, further improving the sealing connection of electronic modules. The waterproof and dustproof performance of the components, on the other hand, can also play a fixed role, and play a certain buffering role against external shocks, vibrations, etc., and further ensure the tight fit between the connector 31 and the connecting end of the electronic module , to prevent the plug from loosening, so as to ensure the function and performance of the electronic module are stable.

The sealing silica gel and curing technology used in the utility model are all conventional techniques in the art, and the utility model does not need to be limited here.

In some embodiments of the present utility model, the unilateral gap between the first annular protrusion 1A and the first annular groove 1B may be 0.3-1 mm. The inventors of the present utility model found that when the unilateral gap is too small, for example, less than 0.3 mm, the sealing silica gel is not easy to fill the gap, which affects the performance of the cured elastic silica gel layer. When the unilateral gap is too large, such as greater than 1 mm, it is difficult to cure the sealing silicone, and it is not easy to form an elastic silicone layer. Moreover, the unilateral gap in the range of 0.3-1 mm also facilitates the operation of inserting the first annular protrusion 1A into the first annular groove 1B.

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

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

In some embodiments of the present invention, the sealed housing 21 includes a cover body 21A and a lower housing body 21B, the side wall and the bottom wall of the chamber are located in the lower housing 21B, and the top wall of the chamber is located in the cover body 21A. More specifically, the cover body 21A and the lower casing 21B are respectively provided with connecting holes that cooperate with each other, and internal threads can be formed in the holes, and the cover body 21A and the lower casing can be connected by threaded fit between the threaded fasteners and the connecting holes. The casings 21B are combined to form the sealed casing 21 .

In some embodiments of the present utility model, the upper part of the lower housing 21B has a second annular groove 2B surrounding the cavity, and the upper housing 21A has a second annular protrusion 2A matching the second annular groove 2B. When the body 21B and the cover body 21A are assembled into the sealed casing 21 , the second annular protrusion 2A is inserted into the second annular groove 2B. Similar to the functions of the first annular protrusion 1A and the first annular groove 1B, the cooperation of the second annular protrusion 2A and the second annular groove 2B is beneficial to the sealing of the housing, and in addition, it can also play a position-limiting role. Relative movement between the cover body 21A and the lower case 21B is prevented.

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 forming process of the second elastic sealing layer structure is similar to the forming process of the first elastic sealing layer structure. When the second annular protrusion 2A is not embedded in the second annular groove 2B, in the second annular groove 2B Coating a certain amount of sealing silica gel, and then embedding the second annular protrusion 2A in the second annular groove 2B, and curing the sealing silica gel, between the second annular protrusion 2A and the second annular recess An elastic silicone layer (the first elastic sealing layer structure) is formed between the grooves 2B, so as to play the roles of sealing and fixing.

In some embodiments of the present utility model, the cover body 21A is provided with cooling fins 21C (as shown in FIG. 6 ), which are used to conduct the heat generated by the electronic modules in the sealed housing 21 to the sealed housing 21 in a timely manner. External, to prevent the electronic module from overheating during operation.

The embodiment of the present utility model also provides an electronic module assembly, as shown in FIGS. 6-7 , which includes the sealed connection assembly of the electronic module provided in the foregoing embodiments and the electronic module 20 fixed in the sealed casing 21 .

It can be seen from Fig. 7 that the electronic module assembly provided by the embodiment of the present invention does not have a wiring harness in the sealed casing 21, and the size of the inner chamber of the sealed casing 21 is close to the size of the electronic module 20, thereby significantly The volume of the sealed case 21 and the electronic module assembly is reduced.

For example, for a specific ORBBEC DaBai depth camera, when the sealing structure mentioned in the prior art is used to seal it, the width of the sealed casing needs to be 38mm, but the utility model embodiment For the electronic module sealing connection assembly provided, the width of the sealing case only needs to be 26mm, and the other dimensions are basically unchanged. Therefore, the volume of the sealing case can be reduced by more than 30%, which is very conducive to the electronic module assembly inside Arrangement of miniaturized vehicle equipment with limited space.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that any modification or equivalent replacement of the technical solution of the present utility model does not depart from the spirit and scope of the technical solution of the present utility model. It falls within the scope of the claims of the present utility model.

Claims (11)

1. An electronic module seal connection assembly, comprising:

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.

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.

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