Valve box device

Abstract

The invention discloses a valve box device which comprises a valve block, a plurality of electromagnetic valves, a pressure sensor and a fixing plate, the valve block is provided with a cavity, the fixing plate is in close fit with the side wall portion of the cavity, the electromagnetic valves and the pressure sensor are limited in the cavity through the fixing plate, the cavity is filled with a sealing glue layer, and the sealing glue layer is arranged in the cavity. And the thickness of the sealing glue layer is smaller than the internal height of the cavity. The valve box device meets the strength and sealing requirements, the using amount of the sealant is relatively small, and the weight of the valve box device is light.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve box devices, in particular to a valve box device suitable for being applied to an automobile chassis. BACKGROUND

[0002] Some automobile chassis are provided with highly integrated valve box devices, the valve box device comprising a valve block, a pressure sensor and a plurality of electromagnetic valves, the pressure sensor and the electromagnetic valves being located in a cavity of the valve block, the cavity of the valve block being filled with sealing glue, so as to meet the strength requirement of the valve box device and the sealing requirement of the pressure sensor and the electromagnetic valves.

[0003] Providing a valve box device with a different structure, so that the valve box device meets the strength requirement and the sealing requirement of the pressure sensor and the electromagnetic valves, and is relatively light in weight, is a technical problem to be solved by the application. SUMMARY

[0004] The application provides a valve box device, which meets the strength requirement and the sealing requirement of the pressure sensor and the electromagnetic valves, and is relatively light in weight, and has relatively low requirements on the automobile chassis when applied to the automobile chassis.

[0005] The valve box device provided by the application comprises a valve block, a plurality of electromagnetic valves, a pressure sensor and a fixing plate, the valve block is provided with a cavity, the fixing plate is tightly matched with a side wall portion of the cavity, the fixing plate limits the electromagnetic valves and the pressure sensor in the cavity, a sealing glue layer is filled in the cavity, and the thickness of the sealing glue layer is smaller than the internal height of the cavity.

[0006] The valve box device provided by the application is provided with the fixing plate, the fixing plate is tightly matched with the side wall portion of the cavity, the fixing plate limits the electromagnetic valves and the pressure sensor in the cavity, therefore, the thickness of the filled sealing glue layer is smaller than the internal height of the cavity, so that the strength requirement of the valve box device and the sealing requirement of the pressure sensor and the electromagnetic valves can be met, the amount of the sealing glue is relatively small, and therefore, the weight of the valve box device can be relatively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is a perspective sectional view of a first embodiment of the valve box device provided by the application;

[0008] Figure 2 It is a front view of Figure 1 ;

[0009] Figure 3 It is a top view of Figure 1 ;

[0010] Figure 4 It is a perspective view of the fixing plate in Figure 1 ;

[0011] Figure 5 for Figure 1 A three-dimensional view of the other side of the central fixing plate;

[0012] Figure 6 This is a schematic diagram showing the assembly relationship between an independent limiting hole and a solenoid valve.

[0013] Figure 7 for Figure 1 Top view of the middle cover plate;

[0014] Figure 8 This is a schematic diagram of the second embodiment of the fixing plate.

[0015] The annotations in the attached figures are explained as follows: 1. Valve block; 11. Cavity; A. Side wall; B. Bottom wall; C. Cavity opening; 12. Connector. 2. Pressure sensors; 3. Solenoid valve, 31. Valve seat, 32. Coil; 4. Fixing plate, 41a / 41b independent limiting hole section, 41 long strip limiting hole section, 42 glue passage section, 42a through hole section, 42b notch section, D small diameter section, E large diameter section, F stepped surface; 5. Cover plate, 51. Cover plate body, 52. Connecting protrusion, 53. Limiting protrusion; 6 circuit boards; 7. Quick-connect plug; 8 connection terminals. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this application, the technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] First embodiment

[0018] like Figures 1-3 As shown in the figure, in this embodiment, the valve box device includes a valve block 1, multiple solenoid valves 3 (five are shown in the figure, but it is not limited to five), a pressure sensor 2, and a fixing plate 4.

[0019] Valve block 1 is provided with cavity 11, cavity 11 includes side wall portion ( Figure 2 Indicated by A), bottom wall part ( Figure 2 (as indicated by B in the middle) and the cavity opening ( Figure 2 (as indicated by C in the middle).

[0020] The fixing plate 4 is tightly fitted to the side wall of the cavity 11. The fixing plate 4 confines the solenoid valve 3 and the pressure sensor 2 within the cavity 11.

[0021] The cavity 11 is filled with a sealant layer (not shown in the figure). The thickness of the sealant layer is less than the internal height of the cavity 11, that is, the sealant does not fill the entire cavity 11. The thickness of the sealant layer is preferably about half of the internal height of the cavity 11.

[0022] The valve box device has the fixing plate 4 tightly fitted with the side wall of the cavity 11, and the fixing plate 4 limits the electromagnetic valve 3 and the pressure sensor 2 in the cavity 11. Therefore, the thickness of the sealant layer being less than the internal height of the cavity 11 can meet the strength requirement of the valve box device and the sealing requirement of the pressure sensor 2 and the electromagnetic valve 3. Therefore, the amount of sealant is relatively small, and thus the weight of the valve box device can be relatively reduced.

[0023] More specifically, as shown in Figure 4 , the fixing plate 4 is provided with six independent limiting hole portions (of course, not limited to six, which can be adjusted according to the number of pressure sensors 2 and electromagnetic valves 3). Among them, one independent limiting hole portion (indicated by 41a in Figure 4 ) separately inserts one pressure sensor 2, and the remaining five independent limiting hole portions (indicated by 41b in Figure 4 ) separately insert five pressure sensors 2, respectively. That is, part of the pressure sensor 2 and part of the electromagnetic valve 3 are respectively inserted into the corresponding independent limiting hole portion. Another part of the pressure sensor 2 and another part of the electromagnetic valve 3 (indicated by G in Figure 6 ) are limited between the fixing plate 4 and the bottom wall of the cavity 11. In this way, the fixing plate 4 has a relatively good limiting effect on the pressure sensor 2 and the electromagnetic valve 3, so that the stability of the pressure sensor 2 and the electromagnetic valve 3 is relatively high.

[0024] More specifically, the inner periphery shape of the independent limiting hole portion is basically consistent with the outer periphery shape of the part of the pressure sensor 2 or the part of the electromagnetic valve 3 inserted therein, which is circular in this embodiment. The inner periphery size of the independent limiting hole portion is slightly larger than the outer periphery size of the part of the pressure sensor 2 or the part of the electromagnetic valve 3 inserted therein, so that there is a gap between the independent limiting hole portion and the part of the pressure sensor 2 or the part of the electromagnetic valve 3 inserted therein, to facilitate the assembly of the fixing plate 4 and the electromagnetic valve 3 and the pressure sensor 2.

[0025] More specifically, as shown in Figure 4 , the independent limiting hole portion includes a small-diameter section D and a large-diameter section E. A step surface F is formed between the small-diameter section D and the large-diameter section E. After the fixing plate 4 is assembled in the cavity 11, the step surface F faces the cavity opening portion of the cavity 11, that is, Figure 2 from the perspective, the step surface F faces downward, and the large-diameter section E is located below the small-diameter section D.

[0026] As shown in Figure 6As shown, the valve seat 31 of the electromagnetic valve 3 is inserted into the small-diameter section D of the corresponding independent limiting hole part, and the coil 32 of the electromagnetic valve 3 is inserted into the large-diameter section E of the corresponding independent limiting hole part. One end face (the upper end face of the coil 32 in the figure) of the coil 32 abuts against one end face (the lower end face of the valve seat 31 in the figure) of the valve seat 31 and the step face F of the corresponding independent limiting hole part.

[0027] The first part of the pressure sensor 2 is inserted into the small-diameter section D of the corresponding independent limiting hole part, and the second part (the outer diameter of the second part is larger than that of the first part) of the pressure sensor 2 is inserted into the large-diameter section E of the corresponding independent limiting hole part. One end face of the second part of the pressure sensor 2 abuts against the step face F of the corresponding independent limiting hole part.

[0028] More specifically, as shown in Figure 4 The fixing plate 4 is further provided with a glue passing part 42. The glue passing part 42 communicates the side of the fixing plate 4 away from the cavity mouth part of the cavity 11 and the side of the fixing plate 4 close to the cavity mouth part of the cavity 11. When the sealant is poured, the sealant poured into the cavity mouth part of the cavity 11 can pass through the glue passing part 42 to reach between the fixing plate 4 and the bottom wall part of the cavity 11. During the pouring process, the gas can be discharged from the glue passing part 42. After the pouring is completed, part of the sealant layer is located in the glue passing part 42, the bubble in the sealant layer is less, and the sealing performance and strength are good.

[0029] More specifically, Figure 4 The fixing plate 4 is provided with multiple rows of independent limiting hole parts (for example, two rows in the figure, and of course, it is not limited to two rows, and can be adjusted according to the number of the pressure sensor 2 and the electromagnetic valve 3). The glue passing part 42 includes a glue passing hole part 42a located between the two adjacent rows of independent limiting hole parts and a glue passing notch part 42b located at the edge of the fixing plate 4.

[0030] More specifically, as shown in Figure 1 and Figure 2 The valve box device further includes a cover plate 5 and a circuit board 6. The cover plate 5 is fixedly connected with the valve block 1. The cover plate 5 seals the cavity mouth part of the cavity 11, and the cover plate 5 limits the circuit board 6 in the cavity 11, so as to realize the sealing of the circuit board 6. The circuit board 6 is electrically connected with the electromagnetic valve 3 and the pressure sensor 2, for example, can be connected through conductive pins and conductive slots.

[0031] More specifically, as shown in Figure 1 and Figure 2As shown, the valve block 1 is also integrated with a terminal box 12, and the circuit board 6 is electrically connected with the external control system through the connecting terminals 8 in the terminal box 12. In addition, the valve block 1 is also connected with a quick connector 7, and the dry compressed air in the external air circuit can enter the cavity 11 of the valve block 11 through the quick connector 7. After the pressure sensor 22 senses the pressure change in the cavity 11 of the valve block 1, an electric signal is output to the circuit board 6, and the circuit board 6 transmits the electric signal to the external control system, so that the external control system controls the on-off of the coil 32 of the electromagnetic valve 3, so that the electromagnetic valve 3 is opened or closed.

[0032] More specifically, as shown in Figure 1 and Figure 2 , the cover plate 5 includes a cover plate body 51 covering the cavity opening of the cavity 11. The cover plate 5 further includes a connecting protrusion 52 protruding from the cover plate body 51 into the cavity 11, and the connecting protrusion 52 is tightly fitted and welded with the side wall of the cavity 11. A preferred welding method is ultrasonic welding.

[0033] More specifically, as shown in Figure 1 and Figure 2 , the cover plate 5 further includes a limiting protrusion 53 protruding from the cover plate body 51 into the cavity 11, and the limiting protrusion 53 abuts against the side of the circuit board 6 away from the electromagnetic valve 3 and the pressure sensor 2 (middle lower side) to limit the circuit board 6. In this way, the stability of the circuit board 6 is relatively high. Figure 2

[0034] More specifically, as shown in Figure 7 , a connecting protrusion 52 can be arranged around the cover plate 5. As shown in Figure 7 , the limiting protrusion 53 can be located in the middle region of the cover plate 5, which can more reliably limit the circuit board 6.

[0035] Second embodiment

[0036] As shown in Figure 8 , the difference between this embodiment and the first embodiment is that the limiting hole part of the fixed plate 4 is a long strip-shaped limiting hole part 41. The pressure sensor 2 and several electromagnetic valves 3 are inserted into each long strip-shaped limiting hole part 41 at the same time, or several electromagnetic valves 3 are inserted into each long strip-shaped limiting hole part 41 at the same time. For example, in the figure, one pressure sensor 2 and two electromagnetic valves 3 can be inserted into one long strip-shaped hole part, and three electromagnetic valves 3 can be inserted into the other long strip-shaped hole part.

[0037] ​The overgluing part 42 is a part of the long strip-shaped limiting hole part 41. That is, when the sealant is poured, the sealant can pass through the long strip-shaped limiting hole part 41 to reach between the fixed plate 4 and the bottom wall part of the cavity 11 after being poured into the cavity 11 from the cavity opening part. More specifically, the long strip-shaped limiting hole part 41 can be a stepped hole part or an equal-diameter hole part.

[0038] The limiting hole part in this form has relatively low processing cost.

[0039] The above describes the principles and implementation manners of the present application by using specific examples, and the above example description is only used to help understand the method and core idea of the present application. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A valve cage device, characterized by, The valve box device comprises a valve block, a plurality of electromagnetic valves, a pressure sensor and a fixing plate, the valve block is provided with a cavity, the fixing plate is tightly matched with a side wall part of the cavity, the fixing plate limits the electromagnetic valves and the pressure sensor in the cavity, the cavity is filled with a sealing glue layer, and a thickness of the sealing glue layer is less than an internal height of the cavity.

2. The valve cage device of claim 1, wherein, The fixing plate is provided with a limiting hole part, a part of the pressure sensor and a part of the electromagnetic valve are inserted in the limiting hole part, and another part of the pressure sensor and another part of the electromagnetic valve are limited between the fixing plate and a bottom wall part of the cavity.

3. The valve cage apparatus of claim 2, wherein, The fixing plate is provided with a glue passing part, the glue passing part is communicated between one side of the fixing plate away from a cavity opening part of the cavity and one side of the fixing plate close to the cavity opening part of the cavity.

4. The valve cage apparatus of claim 3, wherein, The limiting hole part is an independent limiting hole part, one pressure sensor or one electromagnetic valve is inserted in each independent limiting hole part, and the glue passing part and the independent limiting hole part are separately arranged.

5. The valve cage apparatus of claim 4, wherein, The fixing plate is provided with a plurality of rows of independent limiting hole parts, and the glue passing part comprises a glue passing hole part located between two adjacent rows of independent limiting hole parts and a glue passing notch part located at an edge of the fixing plate.

6. The valve cage apparatus of claim 4, wherein, The independent limiting hole part comprises a small-diameter section and a large-diameter section, and a step surface is formed between the small-diameter section and the large-diameter section. A valve seat of the electromagnetic valve is inserted in the small-diameter section of the corresponding independent limiting hole part, a coil of the electromagnetic valve is inserted in the large-diameter section of the corresponding independent limiting hole part, one end face of the coil abuts against one end face of the valve seat and the step surface of the corresponding independent limiting hole part. A first part of the pressure sensor is inserted in the small-diameter section of the corresponding independent limiting hole part, a second part of the pressure sensor is inserted in the large-diameter section of the corresponding independent limiting hole part, and one end face of the second part of the pressure sensor abuts against the step surface of the corresponding independent limiting hole part.

7. The valve cage apparatus of claim 3, wherein, The limiting hole part is a long-strip-shaped limiting hole part, the pressure sensor and a plurality of electromagnetic valves or a plurality of electromagnetic valves are simultaneously inserted in each long-strip-shaped limiting hole part, and the glue passing part is part of the long-strip-shaped hole part.

8. Valve cage device according to claims 1-7, characterized in that The valve box device comprises a cover plate and a circuit board, the cover plate is fixedly connected with the valve block, the cover plate closes a cavity opening part of the cavity, the cover plate limits the circuit board in the cavity, and the circuit board is electrically connected with the electromagnetic valves and the pressure sensor.

9. The valve cage device of claim 8, wherein, The cover plate comprises a cover plate body, the cover plate body covers the cavity opening part of the cavity, the cover plate further comprises a connecting protrusion, the connecting protrusion protrudes from the cover plate body into the cavity, the connecting protrusion is tightly matched with a side wall part of the cavity and is welded.

10. The valve cage device of claim 9, wherein, The cover plate comprises a limiting protrusion, the limiting protrusion protrudes from the cover plate body into the cavity, and the limiting protrusion abuts against one side of the circuit board away from the electromagnetic valves and the pressure sensor.

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