A whole machine waterproof sealing structure

Abstract

The utility model discloses a whole waterproof sealing structure, including top cover and bottom cover, be equipped with PCB subassembly between top cover with bottom cover, the edge of top cover is equipped with glue flow guide groove, first assembly opening, glue flow guide groove, first assembly opening follow the edge direction of top cover and set gradually, the sealant is coated in glue flow guide groove, first assembly opening and first waterproof sealing washer closely cooperate, be equipped with connector on PCB subassembly, connector passes first waterproof sealing washer, the edge of bottom cover with the edge of top cover passes sealant and first waterproof sealing washer closely cooperate to make top cover with bottom cover form sealed environment. The utility model discloses structure design is reasonable, the utility model breaks conventional design thought, has simplified waterproof sealing washer mould structure, adopts waterproof sealing scheme that production point gum (i.

Description

Technical Field

[0001] This utility model relates to the field of waterproof sealing technology for whole machines, and in particular to a waterproof sealing structure for whole machines. Background Technology

[0002] Due to the limitations of the vehicle's structural layout, instrument display controllers are often installed in environments with high humidity. This necessitates high waterproofing performance from the product itself. A common waterproofing solution for controllers combines waterproofing of the outer casing and connectors. This involves designing a continuous, integrated waterproof seal between the upper and lower casings for waterproofing. (See [link to relevant documentation]). Figure 1 The mold structure of this type of integral waterproof sealing ring is complex and difficult to assemble during the production of finished products. The production cycle is relatively slow, and it is easy to misalign the assembly, resulting in poor sealing and complaints from customers. It also places high demands on the production operators. Utility Model Content

[0003] The purpose of this utility model is to provide a whole-machine waterproof sealing structure to solve the technical problems of complex mold structure of the whole waterproof sealing ring, difficult assembly during finished product production, slow production cycle, easy misalignment leading to poor sealing performance and customer complaints, and high requirements for production operators.

[0004] To achieve the above objectives, the present invention provides a waterproof and sealed structure for the entire machine, including a top cover and a bottom cover, with a PCB assembly disposed between the top cover and the bottom cover; the edge of the top cover is provided with an adhesive channel and a first assembly port, the adhesive channel and the first assembly port being arranged sequentially along the edge direction of the top cover, the adhesive channel being coated with sealant, the first assembly port being tightly fitted with a first waterproof sealing ring, the PCB assembly being provided with a connector, the connector passing through the first waterproof sealing ring; the edge of the bottom cover and the edge of the top cover are tightly fitted with the first waterproof sealing ring through the sealant, so as to form a sealed environment between the top cover and the bottom cover.

[0005] Furthermore, the edge of the top cover is provided with a second mounting port, which is tightly fitted with a second waterproof sealing ring. The components of the PCB assembly pass through the second waterproof sealing ring, and the second waterproof sealing ring is tightly fitted with the edge of the bottom cover.

[0006] Furthermore, the rear edge of the top cover is provided with the first mounting opening, and the front edge of the top cover is provided with two second mounting openings distributed along the left and right sides, the width of the second mounting openings being smaller than the width of the first mounting opening.

[0007] Furthermore, the edge of the bottom cover is provided with an assembly gap so that the first waterproof sealing ring and the second waterproof sealing ring are automatically filled into the assembly gap when they are compressed.

[0008] Furthermore, the contact surface between the first waterproof sealing ring and the bottom cover is designed to have a pre-compression of 0.3±0.05mm, and the contact surface between the second waterproof sealing ring and the bottom cover is designed to have a pre-compression of 0.2±0.05mm.

[0009] Furthermore, both the first and second waterproof sealing rings are made of silicone rubber.

[0010] Furthermore, the top cover has several glue diversion channels on its edge, and these glue diversion channels are respectively located on several side edges of the top cover.

[0011] Furthermore, the top cover is provided with glue guide grooves on its front edge, left edge, and right edge.

[0012] Furthermore, the sealant is a one-component silicone-based waterproof sealant.

[0013] Furthermore, the PCB assembly is fixed to the top cover with screws, and the bottom cover is fixed to the top cover with screws.

[0014] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) By setting a top cover and a bottom cover, a PCB assembly is provided between the top cover and the bottom cover; the edge of the top cover is provided with an adhesive guide groove and a first assembly port. The adhesive guide groove and the first assembly port are arranged sequentially along the edge direction of the top cover. The adhesive guide groove is coated with sealant. The first assembly port is tightly fitted with the first waterproof sealing ring. The PCB assembly is provided with a connector, which passes through the first waterproof sealing ring. Thus, in actual assembly, the following steps can be performed: First, fix the top cover on the dispensing fixture. Apply an appropriate amount of sealant evenly to the adhesive guide groove of the top cover using the dispensing equipment. Then, assemble the first waterproof sealing ring onto the connector of the PCB assembly. Next, assemble the PCB assembly with the first waterproof sealing ring onto the top cover. The first assembly port and the first waterproof sealing ring are tightly fitted, so that the first waterproof sealing ring and the sealant are connected to each other through the top cover to form a closed sealed environment. (2) By setting the edges of the bottom cover and the top cover to fit tightly with the first waterproof sealing ring through sealant, a sealed environment is formed between the top cover and the bottom cover. After the entire waterproof system is checked and confirmed to be sealed, the bottom cover is then installed. At this point, a sealed environment is formed between the top cover and the bottom cover through sealant and the first waterproof sealing ring, completing the assembly of the entire device. From this analysis, it can be seen that this utility model breaks with conventional design thinking, simplifies the structure of the waterproof sealing ring mold, and adopts a waterproof sealing scheme that combines the production of adhesive (i.e., sealant) with the assembly of the waterproof sealing ring. This reduces assembly difficulty, increases production speed, and avoids customer complaints about poor waterproof sealing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a common controller's integrated waterproof sealing ring;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model when it is inverted;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention when it is inverted and the bottom cover is removed;

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention when it is inverted;

[0019] Figure 5 This is a three-dimensional structural diagram of the present invention when it is placed upright;

[0020] Explanation of reference numerals in the attached drawings: 1-Screw, 2-Bottom cover, 3-PCB assembly, 4-Connector, 5-First waterproof sealing ring, 6-Second waterproof sealing ring, 7-Top cover; 201-Assembly gap, 701-Glue channel, 702-First assembly port, 703-Second assembly port; 8-Integral waterproof sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0022] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 5 When observing, the observer's left side is designated as left, the observer's right side as right, the area in front of the observer as front, the area behind the observer as back, the area above the observer as top, and the area below the observer as bottom. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0023] See Figures 2 to 5This embodiment provides a waterproof sealing structure for the entire machine, including a top cover 7 and a bottom cover 2, with a PCB assembly 3 disposed between the top cover 7 and the bottom cover 2; the edge of the top cover 7 is provided with an adhesive channel 701 and a first assembly port 702, which are arranged sequentially along the edge of the top cover 7; the adhesive channel 701 is coated with sealant; the first assembly port 702 is tightly fitted with a first waterproof sealing ring 5; the PCB assembly 3 is provided with a connector 4, which passes through the first waterproof sealing ring 5; the edge of the bottom cover 2 and the edge of the top cover 7 are tightly fitted with the first waterproof sealing ring 5 through sealant, so that a sealed environment is formed between the top cover 7 and the bottom cover 2. Function: (1) By setting a top cover and a bottom cover, a PCB assembly is provided between the top cover and the bottom cover; the edge of the top cover is provided with an adhesive guide groove and a first assembly port, the adhesive guide groove and the first assembly port are arranged sequentially along the edge direction of the top cover, the adhesive guide groove is coated with sealant, the first assembly port is tightly fitted with the first waterproof sealing ring, the PCB assembly is provided with a connector, the connector passes through the first waterproof sealing ring; thus, in actual assembly, the following steps can be performed: first, fix the top cover on the dispensing fixture, apply an appropriate amount of sealant evenly to the adhesive guide groove of the top cover through the dispensing equipment, and then assemble the first waterproof sealing ring onto the connector of the PCB assembly; second, assemble the PCB assembly with the first waterproof sealing ring onto the top cover, the first assembly port and the first waterproof sealing ring are tightly fitted, so that the first waterproof sealing ring and the sealant are connected to each other through the top cover to form a closed sealed environment. (2) By setting the edges of the bottom cover and the top cover to fit tightly with the first waterproof sealing ring through sealant, a sealed environment is formed between the top cover and the bottom cover. After the entire waterproof system is checked and confirmed to be sealed, the bottom cover is then installed. At this point, a sealed environment is formed between the top cover and the bottom cover through sealant and the first waterproof sealing ring, completing the assembly of the entire device. From this analysis, it can be seen that this utility model breaks with conventional design thinking, simplifies the structure of the waterproof sealing ring mold, and adopts a waterproof sealing scheme that combines the production of adhesive (i.e., sealant) with the assembly of the waterproof sealing ring. This reduces assembly difficulty, increases production speed, and avoids customer complaints about poor waterproof sealing.

[0024] Specifically, the edge of the top cover 7 is also provided with a second mounting port 703, which fits tightly with the second waterproof sealing ring 6. Components of the PCB assembly 3 pass through the second waterproof sealing ring 6, and the second waterproof sealing ring 6 fits tightly with the edge of the bottom cover 2. Function: The second waterproof sealing ring 6 facilitates the assembly of other corresponding components (not shown in the figure) on the PCB assembly 3, other than the connector 4, with the second waterproof sealing ring 6 to achieve waterproof sealing. In actual assembly, the second waterproof sealing ring 6 can be assembled onto the PCB assembly 3 first, and then the PCB assembly 3 with the first and second waterproof sealing rings can be assembled onto the top cover 7.

[0025] Specifically, the rear edge of the top cover 7 is provided with a first mounting opening 702, and the front edge of the top cover 7 is provided with two second mounting openings 703 distributed from left to right. The width of the second mounting openings 703 is smaller than the width of the first mounting openings 702. Function: Since the components that the first and second waterproof sealing rings mate with may differ in size and function according to actual needs, setting them on the front and rear edges can better avoid mutual interference.

[0026] Specifically, the edge of the bottom cover 2 is provided with an assembly gap 201, so that the first waterproof sealing ring 5 and the second waterproof sealing ring 6 automatically fill the assembly gap 201 when compressed. Function: When the first waterproof sealing ring 5 and the second waterproof sealing ring 6 are assembled with the bottom cover 2, the pre-compressed first and second waterproof sealing rings are compressed and automatically fill the assembly gap, so that the first waterproof sealing ring 5 and the second waterproof sealing ring 6 fit tightly with the bottom cover 2, effectively avoiding poor sealing.

[0027] Specifically, the contact surface between the first waterproof sealing ring 5 and the bottom cover 2 is designed to have a pre-compression of 0.3±0.05mm, and the contact surface between the second waterproof sealing ring 6 and the bottom cover 2 is designed to have a pre-compression of 0.2±0.05mm. Function: The 0.3mm pre-compression of the contact surface between the first waterproof sealing ring 5 and the bottom cover 2, and the 0.2mm pre-compression of the contact surfaces between the two second waterproof sealing rings 6 and the bottom cover 2, achieves a good pre-compression effect, facilitating the automatic filling of the assembly gaps by the waterproof sealing rings under pressure.

[0028] Specifically, both the first waterproof sealing ring 5 and the second waterproof sealing ring 6 are made of silicone rubber. Function: Silicone rubber facilitates waterproof sealing.

[0029] Specifically, the edge of the top cover 7 is provided with a plurality of glue guiding channels 701, which are respectively arranged on a plurality of side edges of the top cover 7. Function: Through the guiding effect of the plurality of glue guiding channels 701, the first waterproof sealing ring 5 and the second waterproof sealing ring 6 are connected to each other with the top cover 7 as the carrier to form a closed sealing environment.

[0030] Specifically, the front edge, left edge, and right edge of the top cover 7 are respectively provided with glue channel grooves 701. Function: This positional distribution can be adapted to the positional distribution of the first waterproof sealing ring 5 and the second waterproof sealing ring 6.

[0031] Specifically, the sealant is a one-component silicone-based waterproof sealant. Purpose: When using equipment for dispensing, a one-component silicone-based waterproof sealant with good self-leveling properties should be selected.

[0032] Specifically, PCB assembly 3 is fixed to top cover 7 by screw 1, and bottom cover 2 is fixed to top cover 7 by screw 1. Function: Screws facilitate easy installation and removal.

[0033] As a preferred embodiment, screw 1 is made of cold-headed steel with color zinc plating, bottom cover 2 is made of magnesium alloy, PCBA (glass fiber reinforced epoxy resin); top cover 7 is made of magnesium alloy.

[0034] The general assembly steps are as follows:

[0035] First, fix the top cover 7 onto the dispensing fixture. Then, use the dispensing equipment to evenly apply an appropriate amount of single-component silicone waterproof sealant into the glue channel of the top cover 7. Next, assemble the first waterproof sealing ring 5 and the two second waterproof sealing rings 6 onto the PCB assembly 3. Then, assemble the PCB assembly 3 with the first waterproof sealing ring and the second waterproof sealing ring 6 onto the top cover 7, so that the first waterproof sealing ring, the second waterproof sealing ring 6 and the single-component silicone waterproof sealant are connected to each other through the top cover 7 to form a closed sealing environment. Finally, check that the entire waterproof system is sealed correctly before installing the bottom cover 2. Fix the bottom cover 2 onto the top cover 7 with six M3*8 screws 1 to complete the assembly of the entire device.

[0036] Technical effects achieved:

[0037] This improved structural device adopts a waterproof sealing solution that combines dispensing during production with the assembly of the first waterproof sealing ring. This simplifies the structure of the waterproof sealing ring mold, reduces assembly difficulty, increases production cycle time, and avoids customer complaints about poor waterproof sealing. Tests have shown good results, demonstrating excellent applicability to waterproof vehicle controller products, especially suitable for vehicle controllers used in environments with high humidity.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A waterproof sealing structure for an entire machine, comprising a top cover and a bottom cover, characterized in that: A PCB assembly is provided between the top cover and the bottom cover; the edge of the top cover is provided with an adhesive channel and a first assembly port, the adhesive channel and the first assembly port are arranged sequentially along the edge of the top cover, the adhesive channel is coated with sealant, the first assembly port is tightly fitted with a first waterproof sealing ring, the PCB assembly is provided with a connector, the connector passes through the first waterproof sealing ring; the edge of the bottom cover and the edge of the top cover are tightly fitted with the first waterproof sealing ring through the sealant, so as to form a sealed environment between the top cover and the bottom cover.

2. The waterproof sealing structure for the entire machine according to claim 1, characterized in that: The top cover is also provided with a second mounting port on its edge. The second mounting port fits tightly with the second waterproof sealing ring. The components of the PCB assembly pass through the second waterproof sealing ring, and the second waterproof sealing ring fits tightly with the edge of the bottom cover.

3. The waterproof sealing structure for the entire machine according to claim 2, characterized in that: The rear edge of the top cover is provided with the first assembly opening, and the front edge of the top cover is provided with two second assembly openings distributed from left to right. The width of the second assembly opening is smaller than the width of the first assembly opening.

4. The waterproof sealing structure for the entire machine according to claim 2, characterized in that: The bottom cover has an assembly gap at its edge, so that the first waterproof sealing ring and the second waterproof sealing ring can automatically fill the assembly gap when they are compressed.

5. The waterproof sealing structure for the entire machine according to claim 4, characterized in that: The contact surface between the first waterproof sealing ring and the bottom cover is designed to have a pre-compression of 0.3±0.05mm, and the contact surface between the second waterproof sealing ring and the bottom cover is designed to have a pre-compression of 0.2±0.05mm.

6. The waterproof sealing structure for the entire machine according to any one of claims 2 to 5, characterized in that: The first waterproof sealing ring is made of silicone rubber, and the second waterproof sealing ring is made of silicone rubber.

7. A waterproof sealing structure for the entire machine according to any one of claims 1 to 5, characterized in that: The top cover has several glue diversion channels on its edge, and these channels are respectively located on several side edges of the top cover.

8. The waterproof sealing structure for the entire machine according to claim 7, characterized in that: The adhesive channel is provided on the front edge, left edge, and right edge of the top cover.

9. A whole-machine waterproof sealing structure according to any one of claims 1 to 5, characterized in that: The sealant is a one-component silicone-based waterproof sealant.

10. A whole-machine waterproof sealing structure according to any one of claims 1 to 5, characterized in that: The PCB assembly is fixed to the top cover with screws, and the bottom cover is fixed to the top cover with screws.

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