Gas blocking diaphragm assembly of energy accumulator

Abstract

The utility model discloses an energy storage device air blocking diaphragm assembly which comprises a diaphragm body and further comprises a protection buckle which is of an I-shaped structure and is integrally vulcanized with the diaphragm body. A groove used for installing the diaphragm body is formed in the middle of the outer surface of the clamping ring in the circumferential direction of the clamping ring, and the end portion of one end of the clamping ring extends outwards in the diameter direction to be provided with an outer circle portion fixed to the energy accumulator shell. In this way, the clamping ring, the protection buckle and the diaphragm body are combined and designed into the energy storage device gas blocking diaphragm assembly, and hydraulic oil and gas are blocked. The protection buckle made of metal can prevent the diaphragm body made of rubber from entering the oil port at the upper end to cause breakage during inflation and working; and a groove in the middle of the clamping ring facilitates assembly and fixation of the diaphragm.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage gas barrier diaphragms, in particular to an energy storage gas barrier diaphragm assembly. Background Art

[0002] The working principle of the diaphragm accumulator is mainly: the diaphragm divides the container into two spaces, one for gas and the other for hydraulic oil. The diaphragm separates the gas and the hydraulic oil. The accumulator is filled with gas before use. When working, the hydraulic oil compresses the gas. When the hydraulic oil is withdrawn, the gas rebounds. The gas-blocking diaphragm of the accumulator is particularly important as a key component for energy conversion.

[0003] Most of the existing energy storage device gas barrier diaphragms are made of pure rubber structure, with high gas permeability. The diaphragm as a whole can easily enter the oil port at the upper end and cause rupture. The overall replacement cost is high and cannot meet the needs of end customers. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes an energy storage device gas barrier diaphragm assembly.

[0005] The utility model provides an energy storage gas barrier diaphragm assembly, including a diaphragm body, and also includes:

[0006] The protective buckle is an I-shaped structure made of metal and is integrally vulcanized with the diaphragm body;

[0007] The clamping ring has a groove for mounting the diaphragm body in the middle of its outer surface along its circumference, and the end diameter of one end of the clamping ring extends outward to form an outer circular portion fixed to the energy storage housing.

[0008] Preferably, the protective buckle comprises a large-diameter circular plate, a connecting rod and a small-diameter circular plate which are coaxially arranged to form an I-shaped structure, and the small-diameter circular plate is vulcanized integrally with the diaphragm body.

[0009] Preferably, a cross-shaped groove is provided on the end surface of the large-diameter circular plate away from the small-diameter circular plate.

[0010] Preferably, the diaphragm body includes an oil cavity rubber layer and an air cavity rubber layer respectively arranged on the outer layer and the inner layer, and a gas barrier film arranged on the middle layer.

[0011] Preferably, the end of the diaphragm body is rolled outward to form an outer circle of the diaphragm.

[0012] Preferably, the outer circular portion is welded to the energy storage housing.

[0013] In summary, the utility model has the following beneficial effects: the accumulator gas-blocking diaphragm assembly is designed by combining the clamp ring, the protective buckle and the diaphragm body to block hydraulic oil and gas. The metal protective buckle can prevent the rubber diaphragm body from entering the oil port at the upper end and causing rupture during inflation and operation; and the groove in the middle of the clamp ring facilitates the assembly and fixation of the diaphragm.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a clamping ring according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the protective buckle of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the diaphragm body of the utility model embodiment

[0018] Figure 4 This is a schematic diagram of the structure of the gas barrier diaphragm assembly of the energy storage device according to an embodiment of the utility model.

[0019] In the figure:

[0020] 1. Snap ring; 2. Outer circle; 3. Groove; 4. Large diameter circular plate; 5. Connecting rod; 6. Small diameter circular plate; 7. Cross groove; 8. Oil cavity rubber layer; 9. Air barrier film; 10. Air cavity rubber layer. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figure 1-4 As shown, the energy storage gas barrier diaphragm assembly proposed in this embodiment includes a diaphragm body and also includes:

[0023] The protective buckle is set to an I-shaped structure and is vulcanized integrally with the diaphragm body;

[0024] The clamp ring 1 has a groove 3 for mounting the diaphragm body in the middle of its outer surface along its circumference, and the end diameter of one end of the clamp ring 1 extends outward to form an outer circumferential portion 2 fixed to the energy storage housing. Specifically, the clamp ring 1 is made of metal, and the outer circumferential portion 2 is welded to the energy storage housing.

[0025] In this way, the accumulator gas blocking diaphragm assembly is designed by combining the clamp ring 1, the protective buckle and the diaphragm body to block the hydraulic oil and gas. The metal protective buckle can prevent the rubber diaphragm body from entering the oil port at the upper end and causing rupture during inflation and operation; and the groove in the middle of the clamp ring facilitates the assembly and fixation of the diaphragm.

[0026] Furthermore, if Figure 2 As shown, the protective buckle includes a large diameter circular plate 4, a connecting rod 5 and a small diameter circular plate 6 which are coaxially arranged to form an I-shaped structure. The small diameter circular plate 6 is vulcanized integrally with the diaphragm body to prevent it from falling off.

[0027] Furthermore, a cross-shaped groove 7 is provided on the end surface of the large-diameter circular plate 4 away from the small-diameter circular plate 6, which can reduce the adsorption force between the large-diameter circular plate 4 and the hydraulic oil port, thereby facilitating the flow of the hydraulic oil.

[0028] In this embodiment, Figure 3 As shown, the diaphragm body includes an oil cavity rubber layer 8 and an air cavity rubber layer 10 respectively arranged on the outer layer and the inner layer, and an air barrier film 9 arranged on the middle layer; and the end of the diaphragm body is rolled outward to form the outer circle of the diaphragm.

[0029] In this way, the outer circle of the diaphragm is sealed by two layers, the oil cavity rubber layer 8 and the air cavity rubber layer 10, to block the hydraulic oil and gas; the middle layer is sealed by the gas barrier film 9, which effectively blocks the penetration of gas. After actual work verification, the gas permeability is less than 5cm 3 / m 2 *24H*0.1Mpa, and reciprocated 600,000 times without damage during work.

[0030] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy storage gas barrier diaphragm assembly, comprising a diaphragm body, characterized in that: Also includes: The protective buckle is an I-shaped structure made of metal and is integrally vulcanized with the diaphragm body; The clamping ring has a groove for mounting the diaphragm body in the middle of its outer surface along its circumference, and the end diameter of one end of the clamping ring extends outward to form an outer circular portion fixed to the energy storage housing.

2. The energy storage gas barrier diaphragm assembly according to claim 1, characterized in that: The protective buckle comprises a large-diameter circular plate, a connecting rod and a small-diameter circular plate which are coaxially arranged to form an I-shaped structure. The small-diameter circular plate is integrally vulcanized with the diaphragm body.

3. The energy storage gas barrier diaphragm assembly according to claim 2, characterized in that: A cross-shaped groove is provided on the end surface of the large-diameter circular plate away from the small-diameter circular plate.

4. The energy storage gas barrier diaphragm assembly according to claim 1, characterized in that: The diaphragm body comprises an oil cavity rubber layer and an air cavity rubber layer which are respectively arranged on the outer layer and the inner layer, and a gas barrier film which is arranged on the middle layer.

5. The energy storage gas barrier diaphragm assembly according to claim 4, characterized in that: The end of the diaphragm body is rolled outward to form an outer circle of the diaphragm.

6. The energy storage gas barrier diaphragm assembly according to claim 1, characterized in that: The outer circular portion is welded to the energy storage housing.

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