Valve-controlled storage battery exhaust system and processing technology of valve-controlled storage battery exhaust system

Abstract

The invention provides a valve control storage battery exhaust system and a valve control storage battery exhaust system processing technology. The valve control storage battery exhaust system comprises a cover body, an exhaust cock and a filter part, a bolt hole is formed in the cover body, and an exhaust hole communicated with the outside is formed in the side wall of the bolt hole; the exhaust bolt is detachably arranged in the bolt hole, an exhaust channel is formed in the exhaust bolt, a radial hole is formed in the side wall of the exhaust bolt, and the radial hole is communicated with the exhaust hole; the filter part is arranged in the exhaust channel, and the filter part is located below the radial hole. According to the valve control storage battery exhaust system provided by the invention, the filter part is fixed in the exhaust channel, when the cover body exhausts mixed gas with acid liquor, the mixed gas passes through the filter part and is exhausted from the exhaust hole, and the acid liquor is intercepted by the filter part, so that the acid liquor is prevented from overflowing, and the driving safety is ensured; the filter part is fixed in the exhaust channel, so that the filter part is prevented from falling off, and the risk of electric leakage of the storage battery is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of batteries, and in particular relates to a valve-controlled battery exhaust system and a processing technology for the valve-controlled battery exhaust system. Background Art

[0002] The battery of the valve-controlled exhaust system is a maintenance-free valve-controlled lead-acid battery. This battery will produce mixed gases such as hydrogen, oxygen, water vapor and acid mist during the charge and discharge process. When the internal pressure of the battery reaches a certain value, the exhaust valve will open to allow the mixed gas to escape, preventing the battery from deforming or even rupturing or exploding due to excessive pressure. When the internal pressure of the battery returns to a certain value, the exhaust valve will automatically close to prevent the adverse effects caused by the outside air entering the battery.

[0003] However, when the temperature of the exhaust system is high, the mixed gas will be accompanied by acid mist when it escapes. In order to smoothly reduce the pressure and exhaust and prevent the acid from overflowing, a filter is usually installed on one or both sides of the battery cover to prevent the overflow of acid and keep the internal pressure of the battery stable. The filter is mainly connected to the filter hole wall by interference fit, multi-point hot stamping, and ultrasonic multi-point welding. However, the existing connection methods cannot effectively ensure that the filter and the filter hole can be tightly connected. Under extreme conditions, the battery acid will directly flow out from the connection gap between the filter and the hole wall, and the air filter is easy to fall off the battery cover, posing a threat to driving safety. Summary of the invention

[0004] The embodiment of the present invention provides a valve-regulated battery exhaust system and a processing technology for the valve-regulated battery exhaust system, aiming to solve the technical problems in the prior art that the connection between the filter plate and the battery cover is poorly sealed and the battery acid is easily leaked.

[0005] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, a valve-controlled battery exhaust system is provided, comprising: A cover body, wherein the cover body is provided with a bolt hole penetrating along the axial direction thereof, and a vent hole communicating with the outside is opened on the side wall of the bolt hole; An exhaust plug is detachably disposed in the bolt hole, an exhaust passage is formed inside the exhaust plug, a radial hole is opened on the side wall of the exhaust plug, and the radial hole is connected to the exhaust hole; and A filter is arranged in the exhaust passage and is located below the radial hole. The filter can block the acid liquid and allow the gas to pass through.

[0006] In combination with the first aspect, in a possible implementation manner, the exhaust plug includes: The housing has a mounting hole extending along its axial direction, the bottom of the mounting hole is open, the side wall of the housing is provided with the radial hole, and the radial hole is connected to the mounting hole; A bottom support member is provided at the bottom of the mounting hole, a first channel is formed in the middle of the bottom support member and is connected vertically, a stepped groove is formed at the top of the bottom support member and is connected to the first channel, the bottom of the stepped groove is defined as the first surface, and the top of the stepped groove is defined as the second surface; an upper cover, which is arranged inside the outer shell, and the bottom surface of the upper cover abuts against the second surface, the upper cover is provided with an air hole connected with the first channel, and the top of the upper cover is provided with the filter element; and A rubber cap, with an overlapping edge on the outer periphery, the top end of the rubber cap abuts against the upper cover, the overlapping edge overlaps the first surface, an air escape channel is formed on the outer periphery of the rubber cap, the top end opening of the air escape channel corresponds to the overlapping edge, the bottom end opening of the air escape channel is connected to the first channel, the overlapping edge has a non-working state in which it overlaps with the first surface to block the air escape channel and the air hole, and also has a venting state in which it is separated from the first surface to connect the air escape channel and the air hole; The first channel, the escape channel and the air penetration hole cooperate to form the exhaust channel.

[0007] In combination with the first aspect, in a possible implementation, a plurality of supporting protrusions are provided on the upper surface of the upper cover, and the plurality of supporting protrusions are respectively in contact with the filter element so that the filter element and the air hole are spaced apart in vertical direction.

[0008] In combination with the first aspect, in a possible implementation manner, the rubber cap is a molded silicone rubber component or a fluororubber component.

[0009] In combination with the first aspect, in a possible implementation, a plurality of support ribs are provided at the upper end of the mounting hole, and the plurality of support ribs are respectively arranged around the inner circumference of the outer shell, and the plurality of support ribs cooperate with the upper cover to clamp and fix the filter element in the up and down directions.

[0010] In combination with the first aspect, in a possible implementation, a clamping protrusion is provided on the bottom surface of the upper cover, and an outer peripheral surface of the clamping protrusion is tightly abutted against a side wall of the stepped groove; The bottom surface of the upper cover is also provided with abutment protrusions, and the abutment protrusions abut against the upper part of the rubber cap.

[0011] In combination with the first aspect, in a possible implementation, a positioning protrusion is provided at the bottom of the bolt hole, and the bottom support member is provided with a positioning groove corresponding to the positioning protrusion, and the positioning groove is plugged into and matched with the positioning protrusion to limit the movement of the bottom support member in the circumferential direction of the bottom support member.

[0012] In combination with the first aspect, in a possible implementation manner, a sealing rubber ring is provided between the exhaust plug and the plug hole.

[0013] In combination with the first aspect, in a possible implementation, an outer circumference of the exhaust plug is provided with an external thread, an inner wall of the bolt hole forms an internal thread correspondingly, and the exhaust plug is threadedly matched with the bolt hole.

[0014] Compared with the prior art, the valve-regulated battery exhaust system provided by the present invention fixes a filter element in the exhaust channel, and the exhaust channel is connected to the exhaust hole on the cover body. When the cover body discharges the mixed gas with acid liquid, the mixed gas passes through the filter element and is discharged from the exhaust hole. The acid liquid is intercepted by the filter element, thereby avoiding the overflow of the acid liquid and ensuring driving safety. The filter element is fixed in the exhaust channel, and the effect of acid-blocking exhaust is achieved through the exhaust plug. The exhaust plug is fixedly connected to the cover body, thereby avoiding the filter element from falling off and reducing the risk of battery leakage.

[0015] In a second aspect, a valve-regulated battery exhaust system processing process is provided, which is used to assemble the valve-regulated battery exhaust system of any one of the above possible implementations, comprising the following steps: S1: obtaining a cover body, forming a plurality of bolt holes on the cover body, the plurality of bolt holes being connected in sequence, and an exhaust hole being integrally injection-molded on a side of the cover body, the exhaust hole being connected to adjacent bolt holes; S2: Get the exhaust plug; S3: placing the filter element into the exhaust plug, and fitting the exhaust plug into the corresponding plug hole; S4: Assemble the cover body to the battery.

[0016] Compared with the prior art, the valve-regulated battery exhaust system processing technology provided by the present invention fixes the filter in the exhaust channel, and the exhaust channel is connected to the exhaust hole on the cover body. When the cover body discharges the mixed gas with acid liquid, the mixed gas passes through the filter and is discharged from the exhaust hole. The acid liquid is intercepted by the filter, which avoids the acid liquid from overflowing and ensures driving safety. The filter is fixed in the exhaust channel, and the effect of acid-blocking exhaust is achieved through the exhaust plug. The exhaust plug is fixedly connected to the cover body, which avoids the filter from falling off and reduces the risk of battery leakage. The processing method of the exhaust system is changed, and the filter assembled in the exhaust hole in the prior art is transferred to the exhaust plug. The connection strength between the exhaust plug and the cover body is high. The filter is fixed between the exhaust plug and the cover body, which avoids the filter from falling off and ensures that the acid liquid will not leak. The filter will not fall off frequently, which extends the service life of the exhaust system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the main structure of a cover body provided by an embodiment of the present invention; Figure 2 A cross-sectional view of an exhaust plug used in an embodiment of the present invention; Figure 3 for Figure 2 Schematic diagram of the exploded assembly of the bottom support, rubber cap and upper cover used in the invention; Figure 4 for Figure 2 A bottom view of the upper cover used in; Figure 5 A schematic diagram of the main structure of a valve-controlled battery exhaust system provided in an embodiment of the present invention; Figure 6 for Figure 2 Schematic diagram of the deformation of the rubber cap used in.

[0019] Description of reference numerals: 1. Exhaust plug; 11. Shell; 111. Radial hole; 112. Support rib; 113. External thread; 12. Bottom support member; 121. First channel; 122. First surface; 123. Second surface; 124. Positioning groove; 13. Upper cover; 131. Air hole; 132. Support protrusion; 133. Clamping protrusion; 134. Abutting protrusion; 14. Rubber cap; 141. Air escape channel; 2. Filter element; 3. Cover body; 31. Bolt hole; 32. Exhaust hole; 4. Sealing rubber ring. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the invention.

[0022] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0024] Please also read Figures 1 to 6 , the valve-regulated battery exhaust system provided by the present invention is now described. A valve-regulated battery exhaust system includes a cover body 3, an exhaust plug 1 and a filter 2. The cover body 3 is provided with a bolt hole 31 which penetrates along its own axial direction, and the side wall of the bolt hole 31 is provided with an exhaust hole 32 which is connected to the outside; the exhaust plug 1 is detachably arranged in the bolt hole 31, and an exhaust channel is formed inside the exhaust plug 1, and the side wall of the exhaust plug 1 is provided with radial holes 111, and the radial holes 111 are connected to the exhaust holes 32; the filter 2 is arranged in the exhaust channel, and the filter 2 is located below the radial holes 111, and the filter 2 can block the acid liquid and allow the gas to pass through.

[0025] It should be noted that a plurality of bolt holes 31 are provided on the cover body 3 , and adjacent bolt holes 31 are connected.

[0026] It should be noted that the filter element 2 of the present application is fixed in the exhaust plug 1, and the exhaust plug 1 and the bolt hole 31 are connected, with a large contact area and high connection strength, which changes the filter element 2 from a rigid connection to a clamped connection in the exhaust plug 1.

[0027] It should be noted that the filter element 2 is an air filter having a large number of micropores. Under the action of the airflow, the acid in the gas collides with the filter medium through inertial motion or irregular Brownian motion, thereby being stuck. The presence of the micropores provides a huge adsorption area to further adsorb the acid.

[0028] Optionally, the filter element 2 is a polypropylene filter or an ultra-fine glass fiber filter. The polypropylene filter or the ultra-fine glass fiber filter can pass through gas molecules but cannot pass through acid, thus meeting the use requirements. Of course, the filter can also be made of a glass fiber coated filter material, or a stainless steel or galvanized material.

[0029] Compared with the prior art, the valve-regulated battery exhaust system provided in the present embodiment fixes the filter element 2 in the exhaust channel, and the exhaust channel is connected to the exhaust hole 32 on the cover body 3. When the cover body 3 discharges the mixed gas with acid, the mixed gas passes through the filter element 2 and is discharged from the exhaust hole 32. The acid is intercepted by the filter element 2, thereby avoiding the overflow of the acid and ensuring driving safety. The filter element 2 is fixed in the exhaust channel, and the effect of acid-blocking exhaust is achieved through the exhaust plug 1. The exhaust plug 1 is fixedly connected to the cover body 3, thereby avoiding the filter element 2 from falling off and reducing the risk of battery leakage.

[0030] In some embodiments, see Figure 2 The exhaust plug 1 includes a shell 11, a bottom support member 12, an upper cover 13 and a rubber cap 14. The shell 11 has a mounting hole extending along its own axial direction, the bottom of the mounting hole is open, and the side wall of the shell 11 is provided with a radial hole 111, and the position of the radial hole 111 is higher than the position of the filter element 2; the bottom support member 12 is arranged at the bottom of the mounting hole, and a first channel 121 that runs through the bottom and the bottom is formed in the middle of the bottom support member 12, and a stepped groove that communicates with the first channel 121 is formed at the top of the bottom support member 12, and the bottom of the stepped groove is defined as the first surface 122, and the top of the stepped groove is defined as the second surface 123; the upper cover 13 is arranged inside the shell 11, and the bottom surface of the upper cover 13 is in contact with the second surface 123, and the upper cover 13 is provided with an air hole 131 that communicates with the first channel 121, and the upper cover A filter element 2 is provided on the top of 13; an overlapping edge is provided on the periphery of the rubber cap 14, the top end of the rubber cap 14 abuts against the upper cover 13, the overlapping edge overlaps the first surface 123, an air escape channel 141 is formed on the periphery of the rubber cap 14, the top end opening of the air escape channel 141 corresponds to the overlapping edge, the bottom end opening of the air escape channel 141 is connected to the first channel 121, the overlapping edge has a non-working state in which it overlaps with the first surface 123 to block the air escape channel 141 and the air hole 131, and also has an exhaust state in which it is separated from the first surface 123 to connect the air escape channel 141 and the air hole 131; the first channel 121, the air escape channel 141 and the air hole 131 cooperate to form an exhaust channel.

[0031] During specific implementation, the outer shell 11 forms a shell with an opening at the bottom, and the bottom support member 12, the rubber cap 14 and the upper cover 13 are sequentially arranged inside the outer shell 11 from bottom to top. The mixed gas enters the bottom support member 12 from the exhaust channel, and impacts the rubber cap 14 at the gas escape channel 141 of the rubber cap 14, causing the rubber cap 14 to deform. A gap appears between the rubber cap 14 and the first surface 122, and the mixed gas and acid liquid are discharged from the gap to between the upper cover 13 and the rubber cap 14, and enter the upper cover 13 and the outer shell 11 from the air penetration hole 131 on the upper cover 13, the acid liquid in the mixed gas is absorbed and processed by the filter element 2, and the mixed gas is discharged from the outer shell 11 from the radial hole 111.

[0032] For specific implementation, see Figure 6 The bottom of the rubber cap 14 has a rubber tube, and the side of the rubber tube forms a cross section. The cross section cooperates with the first channel 121 to form an escape channel 141. When the gas impacts the rubber cap 14, the part of the rubber cap 14 corresponding to the escape channel 141 is weak, causing the corresponding overlapping edge to deform, so that the escape channel 141 and the air hole 131 are connected.

[0033] The exhaust plug 1 provided in this embodiment has a simple structure and a high connection strength with the cover body 3. In the non-working state, the rubber cap 14 can block the first channel 121 to block the gas and acid. When the gas accumulates to a certain volume and needs to be discharged, the gas impacts the rubber cap 14, so that the escape channel 141 and the air hole 131 are connected to complete the exhaust. The mixed gas can be discharged from the radial hole 111. The filter element is fixed in the shell 11, and the acid is blocked by the filter element 2, so that the acid will not leak, ensuring the safety of driving. The exhaust plug 1 fixes the filter element 2 inside the shell 11 to prevent the filter element 2 from falling, ensuring the stability of the use of the filter element 2.

[0034] In some embodiments, see Figure 2 The upper surface of the upper cover 13 is provided with a plurality of supporting protrusions 132, which are respectively in contact with the filter element 2, so that the filter element 2 is spaced apart from the air holes 131. The plurality of supporting protrusions 132 are respectively in contact with the filter element 2, and while stably supporting the filter element 2, the contact surface with the filter element 2 is reduced. The supporting protrusions 132 create a gap between the upper cover 13 and the filter element 2, and when the mixed gas with acid liquid is discharged from the air holes 131, the mixed gas can fully contact the filter element 2, so that the acid liquid is intercepted by the filter element 2, and the discharged mixed gas does not contain the acid liquid.

[0035] In some embodiments, the rubber cap 14 is a molded silicone rubber component or a fluororubber component. Silicone rubber and fluororubber materials have high temperature stability, are not affected by high temperature, are easy to process, are not corroded by acid, and can also undergo elastic deformation under a certain pressure, which meets the use requirements of the rubber cap 14.

[0036] In some embodiments, see Figure 2 , the mounting hole is provided with a plurality of support ribs 112, and the plurality of support ribs 112 are respectively arranged around the inner circumference of the outer shell 11, and the plurality of support ribs 112 cooperate with the upper cover 13 to clamp and fix the filter element 2 in the up and down directions. The plurality of support ribs 112 are respectively in contact with the filter element 2, and cooperate with the support protrusions 132 on the upper cover 13 to clamp the filter element 2, thereby ensuring the relative fixation of the filter element 2 and the cover body 3, and preventing the filter element 2 from moving. The plurality of support ribs 112 can also save space, and the mixed gas can first enter the space where the support ribs 112 are located, and then be discharged from the radial hole 111, and the space where the support ribs 112 are located can play a transition role. The provision of the plurality of support ribs 112 reduces the contact area between the outer shell 11 and the filter element 2, so that the mixed gas can pass through the filter element 2 normally.

[0037] In some embodiments, see Figure 3 and Figure 4 The bottom surface of the upper cover 13 is provided with a clamping protrusion 133, and the outer peripheral surface of the clamping protrusion 133 is tightly abutted against the side wall of the stepped groove; the bottom surface of the upper cover 13 is also provided with an abutting protrusion 134, and the abutting protrusion 134 abuts against the upper part of the rubber cap 14. The clamping protrusion 133 can stably connect the upper cover 13 with the bottom support member 12, limit the displacement of the clamping protrusion 133 on the plane where the second surface 123 is located, and ensure the structural stability of the upper cover 13 and the bottom support member 12; the abutting protrusion 134 abuts against the rubber cap 14, and the abutting protrusion 134 and the first surface 122 cooperate to clamp the rubber cap 14, so that when the mixed gas impacts the rubber cap 14, it will only be deformed at the escape channel 141, and the overall structure of the rubber cap 14 remains unchanged, guiding the mixed gas to be discharged from the gap, thereby guiding the flow path of the mixed gas.

[0038] In some embodiments, see Figure 3 A positioning protrusion is provided at the bottom of the bolt hole 31, and a positioning groove 124 is provided on the bottom support member 12 corresponding to the positioning protrusion. The positioning groove 124 is plugged and matched with the positioning protrusion to limit the movement of the bottom support member 12 in the circumferential direction of the bottom support member 12. The positioning groove 124 can limit the rotation of the bottom support member 12, thereby ensuring the support stability of the bottom support member 12 during use.

[0039] In some embodiments, see Figure 2 A sealing rubber ring 4 is provided between the exhaust plug 1 and the bolt hole 31. The sealing rubber ring 4 can fill the gap between the exhaust plug 1 and the bolt hole 31, improve the connection strength and sealing stability, and ensure the working stability of the valve-controlled battery exhaust system.

[0040] In specific implementation, hot-melt material can be arranged around the sealing rubber ring 4. When the exhaust plug 1 is inserted into the bolt hole 31, the hot-melt material melts and connects the sealing rubber ring 4, the exhaust plug 1 and the bolt hole 31 into a whole, thereby improving the overall sealing performance.

[0041] In some embodiments, see Figure 2 The outer circumference of the exhaust plug 1 is provided with an external thread 113, and the inner wall of the bolt hole 31 forms an internal thread correspondingly, and the exhaust plug 1 is threadedly matched with the bolt hole 31. The setting of the external thread 113 enables the exhaust plug 1 to be stably assembled with the bolt hole 31.

[0042] Based on the same inventive concept, the present invention also provides a valve-regulated battery exhaust system processing technology, which is used to assemble a valve-regulated battery exhaust system as in any of the above embodiments. The process includes the following steps: S1: obtaining a cover body 3, forming a plurality of bolt holes 31 on the cover body 3, the plurality of bolt holes 31 are connected in sequence, and the side of the cover body 3 is integrally molded with an exhaust hole 32, the exhaust hole 32 is connected with the adjacent bolt hole 31; S2: obtaining an exhaust plug 1; S3: placing a filter 2 into the exhaust plug 1, and assembling the exhaust plug 1 into the corresponding bolt hole 31; S4: assembling the cover body 3 to the battery.

[0043] It should be noted that the air filter in the prior art is welded in the exhaust hole 32. Since it is a post-processing, it is easy to loosen and fall off during use, affecting the acid filtering effect.

[0044] Compared with the prior art, the processing technology of the valve-regulated battery exhaust system provided in this embodiment is to fix the filter 2 in the exhaust channel, and the exhaust channel is connected to the exhaust hole 32 on the cover body 3. When the cover body 3 discharges the mixed gas with acid liquid, the mixed gas passes through the filter 2 and is discharged from the exhaust hole 32. The acid liquid is intercepted by the filter 2, which avoids the overflow of the acid liquid and ensures driving safety. The filter 2 is fixed in the exhaust channel, and the effect of acid exhaust is achieved through the exhaust plug 1. The exhaust plug 1 is fixedly connected to the cover body 3, which avoids the filter 2 from falling off and reduces the risk of battery leakage. The processing method of the exhaust system is changed, and the filter 2 assembled in the exhaust hole 32 in the prior art is transferred to the exhaust plug 1. The connection strength between the exhaust plug 1 and the cover body 3 is high. The filter 2 is fixed between the exhaust plug 1 and the cover body 3, which avoids the filter 2 from falling off and ensures that the acid liquid will not leak. The filter 2 will not fall off frequently, which extends the service life of the exhaust system.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve-regulated battery exhaust system, characterized in that: include: A cover body, wherein the cover body is provided with a bolt hole penetrating along the axial direction thereof, and a vent hole communicating with the outside is opened on the side wall of the bolt hole; An exhaust plug is detachably disposed in the bolt hole, an exhaust passage is formed inside the exhaust plug, a radial hole is opened on the side wall of the exhaust plug, and the radial hole is connected to the exhaust hole; and A filter is arranged in the exhaust passage and is located below the radial hole. The filter can block the acid liquid and allow the gas to pass through.

2. The valve-regulated battery exhaust system according to claim 1, characterized in that: The exhaust plug comprises: The housing has a mounting hole extending along its axial direction, the bottom of the mounting hole is open, the side wall of the housing is provided with the radial hole, and the radial hole is connected to the mounting hole; A bottom support member is provided at the bottom of the mounting hole, a first channel is formed in the middle of the bottom support member and is connected vertically, a stepped groove is formed at the top of the bottom support member and is connected to the first channel, the bottom of the stepped groove is defined as the first surface, and the top of the stepped groove is defined as the second surface; an upper cover, which is arranged inside the outer shell, and the bottom surface of the upper cover abuts against the second surface, the upper cover is provided with an air hole connected with the first channel, and the top of the upper cover is provided with the filter element; and A rubber cap, with an overlapping edge on the outer periphery, the top end of the rubber cap abuts against the upper cover, the overlapping edge overlaps the first surface, an air escape channel is formed on the outer periphery of the rubber cap, the top end opening of the air escape channel corresponds to the overlapping edge, the bottom end opening of the air escape channel is connected to the first channel, the overlapping edge has a non-working state in which it overlaps with the first surface to block the air escape channel and the air hole, and also has a venting state in which it is separated from the first surface to connect the air escape channel and the air hole; The first channel, the escape channel and the air penetration hole cooperate to form the exhaust channel.

3. The valve-regulated battery exhaust system according to claim 2, characterized in that: A plurality of supporting protrusions are disposed on the upper surface of the upper cover, and the plurality of supporting protrusions are respectively in contact with the filter element so that the filter element and the air-permeating hole are spaced apart in the upper and lower directions.

4. The valve-regulated battery exhaust system according to claim 2, characterized in that: The rubber cap is a molded silicone rubber component or a fluororubber component.

5. The valve-regulated battery exhaust system according to claim 2, characterized in that: A plurality of supporting ribs are disposed at the upper end of the mounting hole, and the plurality of supporting ribs are respectively disposed around the inner circumference of the outer shell, and the plurality of supporting ribs cooperate with the upper cover to clamp and fix the filter element in the up-and-down directions.

6. The valve-regulated battery exhaust system according to claim 2, characterized in that: The bottom surface of the upper cover is provided with a clamping protrusion, and the outer peripheral surface of the clamping protrusion is tightly abutted against the side wall of the stepped groove; The bottom surface of the upper cover is also provided with abutment protrusions, and the abutment protrusions abut against the upper part of the rubber cap.

7. The valve-regulated battery exhaust system according to claim 2, characterized in that: A positioning protrusion is provided at the bottom of the bolt hole, and a positioning groove is provided on the bottom support member corresponding to the positioning protrusion. The positioning groove is plug-fitted with the positioning protrusion to limit the movement of the bottom support member in the circumferential direction of the bottom support member.

8. The valve-regulated battery exhaust system according to claim 1, characterized in that: A sealing rubber ring is provided between the exhaust plug and the bolt hole.

9. The valve-regulated battery exhaust system according to claim 1, characterized in that: The outer periphery of the exhaust plug is provided with an external thread, and the inner wall of the bolt hole is correspondingly formed with an internal thread, and the exhaust plug is threadedly matched with the bolt hole.

10. A process for manufacturing a valve-regulated battery exhaust system, for assembling a valve-regulated battery exhaust system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: obtaining a cover body, forming a plurality of bolt holes on the cover body, the plurality of bolt holes being connected in sequence, and an exhaust hole being integrally injection-molded on a side of the cover body, the exhaust hole being connected to adjacent bolt holes; S2: Get the exhaust plug; S3: placing the filter element into the exhaust plug, and fitting the exhaust plug into the corresponding plug hole; S4: Assemble the cover body to the battery.

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