CN217306679U - Accumulator pressure relief safety valve - Google Patents

Abstract

The utility model discloses a battery pressure release relief valve, including the sleeve pipe, the connecting hole that has spheroid motion hole and spheroid motion hole intercommunication on the quill, the spheroid has been placed in the spheroid motion hole, the lower extreme in spheroid motion hole is the sphere form, the diameter of connecting hole is less than the diameter in spheroid motion hole and is in sphere form department and spheroid motion hole intercommunication, the spheroid motion hole includes upper segment hole, lower segment hole, the length in upper segment hole, lower segment hole all is greater than the spheroidal radius, be equipped with a plurality of air discharge ducts that the interval set up on the upper and lower direction on the inside pipe wall that the upper segment hole corresponds, the axis of intercommunicating pore with the axis of spheroid motion hole does not coincide. Utilize spheroidal gravity to realize keeping unanimous more easily to the rated air pressure exhaust of connecting hole, a plurality of exhaust orificial spheroid weight, the error is little, and the precision is high to make the exhaust rated pressure in a plurality of battery cells keep unanimous, guarantee the stability of battery performance.

Description

Accumulator pressure relief safety valve

Technical Field

The utility model belongs to the battery technology, concretely relates to battery pressure release relief valve.

Background

The storage battery, for example 12V, has 6 cells, and every cell corresponds a relief valve, and current relief valve is because adopt the injection molding technology to make cap valve, and during injection moulding, size error is great, and the rated atmospheric pressure of exhausting of every cell when leading to it to install on the storage battery is inconsistent, and the uniformity is poor, and the water loss is inconsistent, and the difference between the cell is great, influences battery performance.

Disclosure of Invention

The utility model discloses to prior art's shortcoming, designed a battery pressure release relief valve, utilized spheroidal gravity to realize exhausting the rated air pressure of connecting hole, when installing on the battery, a plurality of exhaust pipe's spheroid weight keeps unanimous more easily, and the error is little, and the precision is high to make the exhaust rated pressure in a plurality of battery cells keep unanimous, guarantee the stability of battery performance.

The utility model discloses a technical scheme as follows: storage battery pressure release relief valve, including the sleeve pipe, the connecting hole that has spheroid motion hole and spheroid motion hole intercommunication on the quill, the spheroid has been placed in the spheroid motion hole, the lower extreme in spheroid motion hole is the sphere form, the diameter of connecting hole is less than the diameter in spheroid motion hole and is in sphere form department and spheroid motion hole intercommunication, the spheroid motion hole includes upper segment hole, lower segment hole, the length of upper segment hole, lower segment hole all is greater than spheroidal radius, be equipped with a plurality of exhaust ducts that the interval set up on the upper and lower direction on the inside pipe wall that the upper segment hole corresponds, the axis of intercommunicating pore with the axis of spheroid motion hole does not coincide.

In addition to the above-mentioned scheme, preferably, there are four exhaust grooves, and the exhaust grooves are uniformly distributed in the circumferential direction.

On the basis of the scheme, as the optimization, the outer wall of the sleeve is provided with a sealing groove which is connected end to end in the circumferential direction, and a sealing ring is arranged in the sealing groove.

In addition to the above, preferably, the ball and the sleeve are made of corrosion-resistant materials.

In addition to the above, the ball and the sleeve are preferably made of glass or ceramic.

On the basis of the scheme, the device preferably further comprises an end cover fixedly connected to the upper end of the storage battery exhaust pipe opening, wherein the end cover is provided with an exhaust hole, the exhaust hole is communicated with the sphere movement hole, and the diameter of the exhaust hole is smaller than that of the sphere movement hole.

In addition to the above, preferably, an axis of the exhaust hole does not coincide with an axis of the sphere movement hole.

On the basis of the scheme, preferably, the axes of the exhaust holes, the axes of the sphere movement holes and the axes of the connecting holes are located in the same plane, and the axes of the axis connecting holes of the exhaust holes are respectively located on two sides of the axes of the sphere movement holes.

Compared with the prior art, the utility model discloses following beneficial effect has:

the gravity of the sphere is utilized to realize the exhaust of the rated air pressure of the connecting hole, the weights of the spheres at the plurality of exhaust pipe openings are easier to keep consistent, the error is small, and the precision is high, so that the exhaust rated pressures in the plurality of battery cells are kept consistent (relatively consistent).

The axis of connecting hole with the axis of spheroid motion hole is misaligned, the design of this axis misalignment, the technical effect that plays is when gaseous jack-up spheroid that makes progress, and ascending power is not on an alignment with spheroidal gravity for the spheroid rolls the simultaneous upward movement in spheroid motion hole, and the acidizing fluid that has in the gas when avoiding the direct up-and-down motion of spheroid glues spheroid, exhaust pipe mouth inner wall, forms tension, leads to can not jack-up spheroid problem under rated air pressure (battery cell internal pressure is higher than this value, can lead to the battery to swell up until the explosion).

The outer wall of the sleeve is provided with a sealing ring groove, a sealing ring is arranged in the sealing ring groove to form sealing, the lower end of the sleeve is abutted to the step surface after being inserted into the exhaust pipe opening, and the end cover is pressed at the upper end of the sleeve and is fixedly connected with the exhaust pipe opening. The surface contact seal and the seal ring seal to form a multiple seal structure, and the seal effect can be improved.

The axis of exhaust hole and the axis of spheroid motion hole are not coincident, even gaseous top the spheroid to exhaust hole department, the unable shutoff exhaust hole of spheroid also can avoid gaseous top the spheroid to exhaust hole department shutoff exhaust hole, leads to unable carminative problem to produce.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of fig. 1 (upper cover not shown).

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

As shown in fig. 1-2, the accumulator relief valve is used for being mounted on an exhaust nozzle of an accumulator.

The storage battery comprises a storage battery shell, wherein an upper cover 1 of the storage battery shell is provided with a plurality of exhaust pipe orifices 2, the upper cover is provided with through holes 3 which are coaxial with the exhaust pipe orifices, and the diameter of each through hole is smaller than the inner diameter of each exhaust pipe orifice to form a step surface 4.

All install the relief valve in every blast pipe mouth, the relief valve includes sleeve pipe 5 and be used for with blast pipe mouth fixed connection's end cover 6, in the sleeve pipe need insert the blast pipe mouth, consequently, sheathed tube external diameter must be less than the orificial internal diameter of blast pipe, for guaranteeing the leakproofness, the sleeve pipe outer wall is equipped with end to end's seal groove in circumference, installation sealing washer 7 in the seal groove.

Have the connecting hole 9 of spheroid motion hole 8 and spheroid motion hole intercommunication on the quill, spheroid 11 has been placed in the spheroid motion hole, the lower extreme in spheroid motion hole is changed for the sphere form and is laminated with the spheroid in easier, it is sealed effectual, the diameter of connecting hole is less than the diameter in spheroid motion hole and at sphere form department and spheroid motion hole intercommunication, the spheroid motion hole includes the upper segment hole, lower segment hole, the upper segment hole, the length in lower segment hole all is greater than spheroidal radius, be equipped with a plurality of exhaust ducts 12 that the interval set up on the upper and lower side on the sleeve pipe inner wall that the upper segment hole corresponds, the axis of intercommunicating pore with the axis of spheroid motion hole does not coincide.

Wherein, the exhaust groove has four, evenly distributed in circumference.

The end cover is provided with an exhaust hole 10 which is communicated with the sphere movement hole, and the diameter of the exhaust hole is smaller than that of the sphere movement hole. The axis of the exhaust hole is not coincident with the axis of the sphere movement hole.

When the sleeve pipe cartridge was in the blast pipe mouth, when the gas pressure that produces in every unit cell of battery reached a definite value, upwards jack-up spheroid, when the spheroid was pushed up upper segment hole department, gaseous deriving from the exhaust duct, discharged through the exhaust hole, to spheroidal weight, and the particular case according to the inside atmospheric pressure discharge value of battery decides.

The axis of connecting hole with the axis of spheroid motion hole is misaligned, the design of this axis misalignment, the technical effect that plays is when gaseous jack-up spheroid that makes progress, and upward power is not on an alignment with spheroidal gravity for the spheroid rolls the simultaneous upward movement in spheroid motion hole (no exhaust duct section), tension (there is the fit clearance between the lateral wall of spheroid and spheroid motion hole) that the acidizing fluid that has in the gas formed when avoiding the direct up-and-down motion of spheroid, leads to can't jack-up spheroid problem smoothly under rated air pressure (the interior air pressure of battery unit is higher than this value, can lead to the battery to swell up till the explosion).

Meanwhile, the axis of the exhaust hole is not coincident with the axis of the sphere movement hole, even if the sphere is pushed to the exhaust hole by gas, the sphere cannot block the exhaust hole, and the problem that the sphere is pushed to the exhaust hole by gas to block the exhaust hole and cannot exhaust gas can be avoided. Simultaneously, the eccentric design of exhaust hole combines together with the eccentric design of connecting hole to spheroid motion hole axis is for referring to, and the gas vent axis is located the left side, and the connecting hole axis is located the right side, can make spheroidal atress more uneven, and the spheroid rotates at spheroid motion hole in being convenient for, avoids the spheroid because of the tensile absorption that acid mist (liquid) in the gas formed between its and the exhaust pipe mouth blocks, can't fall smoothly under the action of gravity (do not have the problem of exhaust groove section).

The axes of the exhaust holes, the axes of the sphere moving holes and the axes of the connecting holes are located in the same plane, and the axes of the axis connecting holes of the exhaust holes are respectively located on two sides of the axis of the sphere moving holes. The effect is optimal.

The lower end of the sleeve pipe is abutted against the step surface after being inserted into the exhaust pipe orifice, and the end cover is pressed at the upper end of the sleeve pipe and is fixedly connected with the exhaust pipe orifice. The surface contact seal and the seal ring seal form a multiple seal structure, and the seal effect can be improved.

The ball body and the sleeve are made of corrosion-resistant materials.

The ball body and the sleeve are made of glass or ceramic.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. Accumulator pressure release relief valve, a serial communication port, including the sleeve pipe, the connecting hole that has spheroid motion hole and spheroid motion hole intercommunication on the quill, the spheroid has been placed in the spheroid motion hole, the lower extreme of spheroid motion hole is the sphere form, the diameter of connecting hole is less than the diameter of spheroid motion hole and at sphere form department and spheroid motion hole intercommunication, the spheroid motion hole includes upper segment hole, lower segment hole, the length of upper segment hole, lower segment hole all is greater than spheroidal radius, be equipped with a plurality of air discharge ducts that the interval set up in the upper and lower direction on the sleeve pipe inner wall that upper segment hole corresponds, the axis of intercommunicating pore with the axis of spheroid motion hole does not coincide.

2. The battery relief safety valve as in claim 1, wherein there are four venting grooves evenly circumferentially distributed.

3. The battery pressure relief safety valve of claim 1, wherein the outer wall of the sleeve is provided with a seal groove which is connected end to end in the circumferential direction, and a seal ring is installed in the seal groove.

4. The battery relief safety valve of claim 1, wherein the ball and sleeve are made of corrosion resistant material.

5. The battery pressure relief valve of claim 4, wherein the ball and sleeve are made of glass or ceramic.

6. The battery relief safety valve of claim 1, further comprising an end cap for fixedly attaching to an upper end of the battery vent tube opening, the end cap having a vent hole therein, the vent hole communicating with the sphere movement hole, the vent hole having a diameter smaller than the sphere movement hole.

7. The battery relief safety valve of claim 6, wherein the axis of the vent hole is not coincident with the axis of the ball movement hole.

8. The battery relief safety valve of claim 7, wherein the axis of the vent hole, the axis of the ball moving hole, and the axis of the connection hole are located in the same plane, and the axes of the vent hole axis and the connection hole are located on both sides of the axis of the ball moving hole, respectively.

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