Brake Pressure Control Housing Seal That Captures Excess Adhesive
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Solution Overview
Problem
Existing vehicle brake fluid pressure control devices face challenges in preventing adhesive from protruding onto the outer surface of the housing while maintaining strong adhesive strength during the coupling of the cover to the housing.
Innovation Solution
A vehicle brake fluid pressure control device design featuring a housing with a top groove filled with adhesive, a protrusion on the cover that inserts into the groove, and a collecting groove to capture excess adhesive, along with a flange that overhangs to ensure the adhesive does not protrude externally and provides improved bonding through an anchor effect on a coarse surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the groove is filled with sealing agent and the protrusion is inserted into the groove, then the sealing structure is completed, but the sealing agent or adhesive may protrude onto the outer surface of the housing
Solution Approach 1:
A receiving groove is introduced as an intermediary structure between the sealing agent application area and the outer surface. This receiving groove captures and contains the sealing agent or adhesive, preventing it from protruding onto the outer surface while still allowing the sealing function to be achieved. The receiving groove acts as a mediator that resolves the conflict between achieving reliable sealing and preventing adhesive protrusion.
2Reliability
If the sealing agent or adhesive protrudes onto the outer surface, then the sealing structure is formed, but a process for wiping the sealing agent or adhesive is necessary, thereby increasing the production cost
Solution Approach 1:
The receiving groove serves as a mediator that eliminates the need for post-application wiping processes. By containing the sealing agent within the receiving groove during application, the structure prevents protrusion onto the outer surface, thereby eliminating the additional manufacturing step of wiping and reducing production costs while maintaining sealing reliability.
3Ease of manufacture
If the cover is bonded to the housing, then the assembly is completed, but the structure capable of preventing the adhesive from protruding onto the outer surface while improving an adhesive strength is necessary
Solution Approach 1:
The receiving groove is designed as an integrated intermediary structure within the housing or cover that captures excess adhesive during the bonding process. This allows the cover to be bonded to the housing with strong adhesive strength while the receiving groove prevents adhesive from protruding onto the outer surface, eliminating the need for additional wiping or cleaning operations.
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
The present invention proposes a vehicle brake fluid pressure control device (10), which comprises a base body (40) provided with a brake fluid line (A1 - E2), a housing (36) in which a control board (99) is accommodated, and a cover (38) that is attached to the housing (36) and covers the control board (99). The housing (36) has an opening on a front side and an opening on a back side and has a peripheral wall part (84) in which the control board (99) is accommodated. The peripheral wall part (84) of the housing (36) has an attachment part (36a) to which the cover (38) is attached. The cover (38) has a protrusion (38a) extending toward the attachment part (36a). The attachment part (36a) of the peripheral wall part (84) has a top groove (36c) that is filled with an adhesive (36b) and into which the protrusion (38a) is inserted, The cover (38) comes in contact with the attachment part (36a) at a contacting part (39) present on an outer side of the protrusion (38a) when the cover (38) is attached to the housing (36). At least one of the top groove (36c) of the attachment part (36a) and a portion between the contacting part (39) and the protrusion (38a) of the cover (38) has a collecting groove (38b) in which an excess portion of the adhesive (36b) is collected when the cover (38) is attached to the housing (36). The housing (36) has a flange (92) that comes in contact with the base body (40). The flange (92) overhangs toward an outer side from a peripheral wall part (84) of the housing (36). The flange (92) has a lower groove (92b) to be filled with an adhesive (36b). A surface of the flange (92) close to the base body (40) is divided by the lower groove (92b) into an outer-side surface (92e) on an outer side of the lower groove (92b) and an inner-side surface (92f) on an inner side of the lower groove (92b). A small gap (92g) is ensured between the inner-side surface and the base body (40) when the outer-side surface comes in contact with the base body (40). An excess portion of the adhesive (36b) flows into the small gap (92g).