CN213177014U - Simple and convenient explosion-proof valve with integrated alarm function - Google Patents
Simple and convenient explosion-proof valve with integrated alarm function Download PDFInfo
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- CN213177014U CN213177014U CN202021277173.5U CN202021277173U CN213177014U CN 213177014 U CN213177014 U CN 213177014U CN 202021277173 U CN202021277173 U CN 202021277173U CN 213177014 U CN213177014 U CN 213177014U
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Abstract
The utility model relates to a simple and convenient explosion-proof valve with integrated alarm function, which comprises a valve body, a sealing connecting piece, an elastic connecting piece, an upper contact piece and a lower contact piece, wherein the sealing connecting piece is arranged at the upper side of the valve body, the elastic connecting piece passes through the valve body and is connected with the sealing connecting piece, the elastic connecting piece enables the sealing connecting piece to be tightly pressed at the upper side of the valve body, and a detection structure comprises the upper contact piece and the lower contact piece which are respectively fixed with the sealing connecting piece and the valve body, when the explosion-proof valve is exploded for pressure relief, the upper contact piece is contacted with or disconnected with the lower contact piece, the relative position between the valve body and the sealing connecting piece is monitored by adopting an on-off electric loop, thereby the state of the explosion-proof valve is judged, the position between the valve body and the sealing connecting piece is changed, namely, when the explosion-proof, therefore, the abnormal state of the battery can be transmitted to the display system in time, the whole structure of the explosion-proof valve is simple, and the production cost is low.
Description
Technical Field
The utility model relates to an explosion-proof valve field especially relates to an integrated alarming function's of simple and convenient formula explosion-proof valve.
Background
The pressure relief explosion-proof device applied to the battery system in the field of new energy vehicles at present requires that an alarm signal needs to be transmitted to a terminal display system at the first time when the thermal runaway state of the battery is required according to the further improvement of national standardized safety; the conventional methods at present mainly include the following three types: firstly, the metal explosion-proof valve product only has the functions of balance ventilation, explosion prevention and pressure relief and is not provided with an alarm transmission device, and secondly, even if some battery manufacturers have the functions of the alarm transmission device, the metal explosion-proof valve product is only designed to be placed in a battery pack (not integrated on the explosion-proof valve), and a traditional pressure sensor, a traditional flow sensor or a traditional smoke sensor is usually adopted to identify and transmit signals to a terminal display, so that the metal explosion-proof valve product is high in manufacturing cost, low in integration level and low in mass production; thirdly, some present integration explosion-proof valves inside inductor mode of adopting carry out inside discernment, but it causes the design structure complicacy, and the cost rises, and final customer does not approve and leads to unable volume production.
Therefore, an explosion-proof valve with a warning device, which has a simple structure and low manufacturing cost, is needed.
SUMMERY OF THE UTILITY MODEL
Therefore, the explosion-proof valve with the alarm device in the prior art is needed to be provided for solving the problems of complex structure and high cost of the explosion-proof valve with the alarm device, and the explosion-proof valve is simple in structure and low in production cost and integrates the alarm function.
A simple explosion-proof valve with integrated alarm function, which comprises a valve body,
a sealing connector located on the upper side of the valve body,
the elastic connecting piece penetrates through the valve body and is connected with the sealing connecting piece, the sealing connecting piece is tightly pressed on the upper side of the valve body by the elastic connecting piece,
the detection structure comprises an upper contact and a lower contact, the upper contact and the lower contact are respectively fixed with the gland and the valve body, and the upper contact is in contact with or disconnected from the lower contact when the explosion-proof valve is exploded to release pressure.
In one embodiment, the upper contact and the lower contact are connected with an alarm system through wires.
In one embodiment, the upper contact piece and the lower contact piece are made of solid conductive metal, and raised contacts are arranged at the mutual contact positions of the upper contact piece and the lower contact piece.
In one embodiment, the middle part of the valve body is provided with a vent hole, and the vent hole is communicated with two sides of the valve body.
In one embodiment, the elastic connecting piece comprises a spring and a guide shaft, the spring is sleeved outside the guide shaft, and the guide shaft rotates to be connected with the sealing connecting piece through the valve body.
In one embodiment, the sealing connecting piece comprises a gland, a patch, a waterproof breathable film, a fixed seat and a pressing ring, a fixed part fixed with the guide shaft is arranged on the side surface of the fixed seat,
the outer side of the fixed seat is sequentially provided with a waterproof breathable film, a pressure ring, a patch and a gland from inside to outside, the gland is fixed with the fixed seat,
the waterproof breathable film is tightly attached to the outer side surface of the fixed seat under the action of the pressing ring,
the middle parts of the guide shaft and the fixing part are provided with communicated through holes, and the through holes communicate the inside of the explosion-proof valve with the upper side of the fixing seat.
In one embodiment, a gap is formed between the pressing cover and the fixed seat, and gaps are formed in the side edges of the patch and the fixed seat and communicated with the outside through the gap.
In one embodiment, an outer sealing ring is arranged between the fixed seat and the valve body.
In one embodiment, the lower side of the valve body is provided with an inner sealing ring for sealing with the battery pack.
In one embodiment, a protecting sleeve is arranged outside the guide shaft and the spring, and one end of the protecting sleeve is fixed with the valve body to wrap the guide shaft and the spring.
Above-mentioned explosion-proof valve of integrated alarming function of simple and convenient formula, monitor the relative position between valve body and the sealing connection spare through adopting break-make electric return circuit, thereby judge explosion-proof valve's state, the position changes between valve body and sealing connection spare, during explosion-proof valve blasting pressure release promptly, the return circuit state that detects the structure changes, at this moment, can be timely will change information transfer to alarm system, thereby can be timely with the abnormal state transmission of battery to display system, explosion-proof valve overall structure is simple, low in production cost.
Drawings
FIG. 1 is a schematic diagram of the explosion-proof valve of the present invention;
FIG. 2 is a partial sectional view of the explosion-proof valve of the present invention;
FIG. 3 is a schematic diagram of the detection structure state of the explosion-proof valve of the present invention under normal working conditions;
FIG. 4 is the utility model discloses detect structural state schematic diagram under the unusual operating mode of explosion-proof valve
FIG. 5 is a cross-sectional view of the explosion-proof valve according to the present invention;
fig. 6 is the utility model discloses section view under the unusual operating mode of explosion-proof valve.
The pressure-sensitive adhesive sealing device comprises a pressure cover 1, a pressure cover 2, a patch 3, a fixing seat 4, a pressure ring 5, an inner sealing ring 6, a valve body 7, an outer sealing ring 8, an upper contact piece 9, a lower contact piece 10, a guide shaft 11, a spring 12, a protecting sleeve 13 and a waterproof breathable film.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A simple explosion-proof valve with integrated alarm function, which comprises a valve body 6,
a sealing connecting piece which is positioned at the upper side of the valve body 6,
the elastic connecting piece penetrates through the valve body 6 to be connected with the sealing connecting piece, the sealing connecting piece is tightly pressed on the upper side of the valve body 6 by the elastic connecting piece,
the explosion-proof valve comprises a detection structure, wherein the detection structure comprises an upper contact 8 and a lower contact 9, the upper contact 8 and the lower contact 9 are respectively fixed with a sealing connecting piece and a valve body 6, and when the explosion-proof valve is exploded to release pressure, the upper contact 8 is in contact with or disconnected from the lower contact 9.
Through adopting the make-and-break circuit to monitor the relative position between valve body 6 and the sealing connection spare to judge the state of explosion-proof valve, the position changes between valve body 6 and sealing connection spare, when explosion-proof valve blasting pressure release promptly, the return circuit state of detecting the structure changes, at this moment, can be timely with change information transfer to alarm system, thereby can be timely with the abnormal state transmission of battery to display system, explosion-proof valve overall structure is simple, manufacturing cost is lower.
As for the state between the upper contact piece 8 and the lower contact piece 9, the upper contact piece 8 and the lower contact piece 9 are in a contact communicating state in the original state (normal working condition), and the pressure inside the battery pack is increased in the abnormal state (abnormal working condition), so that the sealing connection piece moves outwards to generate a gap between the sealing connection piece and the valve body 6, at this time, the upper contact piece 8 and the lower contact piece 9 fixed on the sealing connection piece and the valve body 6 are disconnected to disconnect the circuit, so that the state of the explosion-proof valve can be detected in time through the change of the state of the circuit, of course, in the original state, the upper contact piece 8 and the lower contact piece 9 can also be in a disconnecting state, at the abnormal state, the sealing connection piece moves outwards, the upper contact piece 8 moves outwards, after the movement, the upper contact piece 8 contacts with the lower contact piece 9 to connect the circuit, a change in the state of the circuit can also be made to detect the state of the explosion-proof valve.
At this time, in order to timely perform a feedback on the state of the battery, the upper contact 8 and the lower contact 9 are connected to an alarm system through wires, specifically, in this embodiment, the alarm system is a battery internal BMS module or a vehicle computer system or others, that is, the state change of the upper contact 8 and the lower contact 9 is transmitted to the battery internal BMS or the vehicle computer, when the state between the upper contact 8 and the lower contact 9 changes, the original state will be changed, and the state changes from the original state (normal working condition, normal pressure inside the battery pack) to an abnormal state (abnormal working condition, a large amount of air pressure needs to be removed inside the battery pack), at this time, the original upper contact 8 and the lower contact 9 change from contact (or disconnection) to disconnection (or contact), so, the change of the state of the whole loop, after the battery internal or the vehicle computer detects the change of the state, and judging that the abnormal condition occurs in the battery pack at the moment, so that an alarm can be further sent out, such as a ring, an indicator light or a buzzer and the like, so as to prompt a user in time.
In order to make the contact between the upper contact piece 8 and the lower contact piece 9 better, at this time, the upper contact piece 8 and the lower contact piece 9 are made of solid conductive metal, and the contact position between the upper contact piece 8 and the lower contact piece 9 is provided with a raised contact point for increasing the stability during communication.
For the elastic connecting piece, in this embodiment, the elastic connecting piece includes a spring 11 and a guide shaft 10, the spring 11 is sleeved outside the guide shaft 10, the guide shaft 10 rotates through the valve body 6 to connect with the sealing connecting piece, at this time, a boss is arranged at one end of the guide shaft 10 far away from the sealing connecting piece, the guide shaft 10 passes through the valve body 6 to be fixedly connected with the sealing connecting piece, the spring 11 is sleeved outside the guide shaft 10, one end of the spring 11 abuts against the boss of the guide shaft 10, and the other end abuts against the inner side surface of the valve body 6, after the spring 11 is sleeved outside the guide shaft 10, the spring 11 is in a compressed state, so that the sealing connecting piece can be tightly attached to the valve body 6 under the action of the spring 11, of course, the spring 11 at this time has a certain compression stroke, so that the spring 11 can be compressed continuously in a subsequent abnormal state, the sealing connecting piece is separated from the valve body 6, and rapid pressure relief is carried out.
Of course, in order to ensure the function of the explosion-proof valve, at this time, the middle part of the valve body 6 is provided with air holes which are communicated with the two sides of the valve body 6.
For the sealing connecting piece, in order to make the explosion-proof valve capable of adjusting the internal and external air pressure under normal conditions, in this embodiment, the sealing connecting piece comprises a patch 2, a waterproof breathable film 13, a fixed seat 3 and a press ring 4, a fixed part fixed with a guide shaft 10 is arranged on the side surface of the fixed seat 3,
3 outsides of fixing base are equipped with waterproof ventilated membrane 13, clamping ring 4, paster 2 and gland 1 from interior to exterior in proper order, gland 1 is fixed with fixing base 3, to the fixed between gland 1 and the fixing base 3, in this embodiment, the side of going up of fixing base 3 is equipped with a plurality of ring channels, is equipped with the annular arch of looks adaptation at the downside of gland 1, like this, can directly block gland 1 at the 3 upside of fixing base, through the fixed of gland 1 with fixing base 3, can fix waterproof ventilated membrane 13 between the two, clamping ring 4, paster 2.
The middle parts of the guide shaft 10 and the fixed part are provided with communicated through holes which communicate the interior of the explosion-proof valve with the upper side of the fixed seat 3,
waterproof ventilated membrane 13 is closely laminated with the lateral surface of fixing base 3 under the effect of clamping ring 4.
Further, be equipped with the clearance between gland 1 and the fixing base 3, paster 2 and 3 sides of fixing base are equipped with the breach, the breach passes through clearance and external intercommunication.
At this time, the guiding shaft 10 is connected with the fixing seat 3 through a screw thread at the position of the fixing part, through holes are arranged at the middle parts of the guiding shaft 10 and the fixing part, after the guiding shaft 10 is connected with the fixing seat 3 through a screw thread, the inner side of the guiding shaft 10 (the side close to the inner part of the valve body 6) is communicated with the outer side of the fixing seat 3 (the side close to the waterproof breathable film 13) under the action of the through holes, gaps are arranged at the side edges of the iron sheet and the fixing seat 3, and a gap is arranged between the gland 1 and the fixing seat 3, therefore, at this time, the inner part of the valve body 6 can pass through the waterproof breathable film 13 along the through holes of the guiding shaft 10 and the fixing part, pass through the gaps at the side edges of the patch 2 and the fixing seat 3, and then is communicated with the outside through the gap between the gland 1 and the fixing seat 3, so that the, when the pressure difference between the inside and the outside of the explosion-proof valve is small, the pressure difference can be adjusted, and meanwhile, water drops and dust can be prevented from entering the battery pack through the explosion-proof valve.
In order to guarantee the sealing performance of the explosion-proof valve under normal working conditions, an outer sealing ring 7 is arranged between the fixing seat 3 and the valve body 6, and an outer sealing groove is arranged at the corresponding position of the fixing seat 3 at the moment, so that the outer sealing ring 7 can be better positioned, and the sealing effect is improved.
In order to ensure the sealing effect between the explosion-proof valve and the battery pack, the lower side of the valve body 6 is provided with an inner sealing ring 5 for sealing with the battery pack, and the explosion-proof valve and the battery pack can be fixed by fasteners such as a buckle structure or screws.
Finally, in order to ensure an integral waterproof effect, a protective sleeve 12 is arranged outside the guide shaft 10 and the spring 11, and one end of the protective sleeve 12 is fixed with the valve body 6 to wrap the guide shaft 10 and the spring 11.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A simple explosion-proof valve with integrated alarm function is characterized by comprising a valve body,
a sealing connector located on the upper side of the valve body,
the elastic connecting piece penetrates through the valve body and is connected with the sealing connecting piece, the sealing connecting piece is tightly pressed on the upper side of the valve body by the elastic connecting piece,
the detection structure comprises an upper contact and a lower contact, the upper contact and the lower contact are respectively fixed with the gland and the valve body, and the upper contact is in contact with or disconnected from the lower contact when the explosion-proof valve is exploded to release pressure.
2. The explosion-proof valve of claim 1 wherein the upper and lower contacts are connected to an alarm system by wires.
3. The explosion-proof valve of claim 2 wherein the upper and lower contacts are solid conductive metal and raised contacts are provided at the location where the upper and lower contacts contact each other.
4. The simple and convenient explosion-proof valve integrating the alarm function as claimed in claim 3, wherein the valve body is provided with a vent hole in the middle, and the vent hole is communicated with two sides of the valve body.
5. The explosion-proof valve of claim 3 wherein the elastic connector comprises a spring and a guide shaft, the spring is sleeved outside the guide shaft, and the guide shaft is connected with the sealing connector through the valve body.
6. The simple and convenient explosion-proof valve integrating the alarm function as claimed in claim 5, wherein the sealing connecting piece comprises a gland, a patch, a waterproof breathable film, a fixing seat and a pressing ring, a fixing part fixed with the guide shaft is arranged on the side surface of the fixing seat,
the outer side of the fixed seat is sequentially provided with a waterproof breathable film, a pressure ring, a patch and a gland from inside to outside, the gland is fixed with the fixed seat,
the waterproof breathable film is tightly attached to the outer side surface of the fixed seat under the action of the pressing ring,
the middle parts of the guide shaft and the fixing part are provided with communicated through holes, and the through holes communicate the inside of the explosion-proof valve with the upper side of the fixing seat.
7. The explosion-proof valve of claim 6, wherein a gap is formed between the pressing cover and the fixing seat, and gaps are formed on the side edges of the patch and the fixing seat and communicated with the outside through the gap.
8. The simple and convenient explosion-proof valve integrating the alarm function as claimed in claim 6, wherein an outer sealing ring is arranged between the fixed seat and the valve body.
9. The explosion-proof valve of claim 6 wherein the valve body has an inner sealing ring at the lower side for sealing with the battery pack.
10. The explosion-proof valve of claim 6 wherein a protective sleeve is disposed outside the guide shaft and the spring, and one end of the protective sleeve is fixed to the valve body to wrap the guide shaft and the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021277173.5U CN213177014U (en) | 2020-07-03 | 2020-07-03 | Simple and convenient explosion-proof valve with integrated alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021277173.5U CN213177014U (en) | 2020-07-03 | 2020-07-03 | Simple and convenient explosion-proof valve with integrated alarm function |
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| Publication Number | Publication Date |
|---|---|
| CN213177014U true CN213177014U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021277173.5U Active CN213177014U (en) | 2020-07-03 | 2020-07-03 | Simple and convenient explosion-proof valve with integrated alarm function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678651A (en) * | 2022-04-14 | 2022-06-28 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
-
2020
- 2020-07-03 CN CN202021277173.5U patent/CN213177014U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678651A (en) * | 2022-04-14 | 2022-06-28 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
| CN114744361B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
| CN114678651B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
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