Energy storage battery with anti-explosion pressure relief device

Abstract

The energy storage battery comprises a battery pack main body, and a positive electrode interface and a negative electrode interface which are arranged at the two ends of the upper side of the battery pack main body, a detection port is formed in the inner side of the middle of the upper side of the battery pack main body, and concave cavities are formed in the two ends of the lower side of the battery pack main body respectively; a fixing plate is arranged in the middle of the concave cavity, pulleys are arranged on the two sides of the tail end of the fixing plate respectively, the height of the battery pack body is increased, the space between the bottom of the battery pack and the bottom of the cabinet body is increased, and circulation of air below the battery pack is promoted. According to the battery pack provided by the invention, air can better circularly flow around the battery pack, so that heat generated in the working process of the battery can be taken away, and the heat is prevented from being accumulated at the bottom and around the battery pack, thereby reducing the risk of explosion caused by high-temperature accumulation, improving the use safety and stability of the battery pack, and prolonging the service life of the battery.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of energy storage battery, and specifically relates to an energy storage battery with an anti-explosion pressure relief device. BACKGROUND

[0002] During use, charging and the like, an energy storage battery can cause explosion hazards due to internal short circuit, thermal runaway and the like.

[0003] It is internally provided with a pressure relief valve, which is automatically opened when the internal pressure of the battery abnormally rises to a set threshold, allowing high-temperature and high-pressure gas and the like to be quickly discharged, reducing the internal pressure, avoiding the battery shell from being cracked due to being unable to withstand the pressure, and thus achieving the purpose of anti-explosion pressure relief, ensuring the safe use of the energy storage battery and reducing potential explosion hazards.

[0004] The bottom of the battery pack main body contacts the inner wall of the cabinet when the battery pack main body is inserted into the cabinet for storage, and lacks an isolation structure, and long-time insertion action can cause the bottom of the battery pack main body to be rubbed and damaged, and is also not conducive to heat dissipation of the battery pack main body in the cabinet. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of energy storage batteries with anti-explosion pressure relief device, to solve the problem that the bottom of battery pack main body contacts the inner wall of cabinet in the above background art, lack isolation structure, long-time insertion action can cause the bottom of battery pack main body to be rubbed and damaged, also not conducive to heat dissipation of battery pack main body in cabinet.

[0006] To achieve the above object, the utility model provides the following technical scheme: an energy storage battery with an anti-explosion pressure relief device, comprising a battery pack main body and a positive electrode interface and a negative electrode interface arranged at the upper side of the battery pack main body.

[0007] The upper side of the battery pack main body is provided with a detection port at the middle inner side position;

[0008] The lower side of the battery pack main body is provided with a concave cavity at both ends, respectively, a fixed plate is arranged at the middle position of the concave cavity, pulleys are arranged at both ends of the fixed plate, respectively, a rotating shaft is arranged at the connection between the fixed plate and the inner wall of the concave cavity on both sides, and a tension spring is arranged at the upper side of the fixed plate.

[0009] Preferably, the upper and lower ends of the tension spring are connected to the inner wall of the fixed plate and the concave cavity by bolt connection.

[0010] Preferably, the rotating shaft penetrates through the fixed plate, and the rotating shaft is connected to the inner wall of the concave cavity at both ends by sleeve embedding.

[0011] Preferably, the fixed plate can rotate in the concave cavity through a rotating shaft, and the pulley is connected with the fixed plate through a movable connection mode.

[0012] Preferably, inner grooves are arranged at the left and right end positions of the upper side of the battery pack body respectively, and inner sliding rails are arranged on the inner walls of the front and rear ends of the inner grooves respectively.

[0013] Preferably, a sliding block is arranged at the middle upper side position of the inner groove, and clamping blocks are arranged at the connecting positions of the sliding block and the two end inner sliding rails respectively.

[0014] Preferably, the clamping blocks are connected with the inner sliding rails through clamping and embedding connection, the sliding block can move in the inner sliding rail through the clamping blocks, and the sliding block is in L-shaped.

[0015] Compared with the prior art, the utility model provides a kind of energy storage battery with explosion-proof pressure relief device, with the following beneficial effects:

[0016] 1, in the utility model, by the setting of pulley, fixed plate, rotating shaft, tension spring and concave cavity, the following advantages are achieved:

[0017] Convenient installation and operation: during the installation of the battery pack body into the cabinet, the cooperation of pulley 11 and the bottom and inner wall of the cabinet, the rolling friction and the structure characteristics of the rotatable structure greatly reduce the manpower required to push the battery pack, making the operation more smooth and convenient, improving the efficiency and convenience of installation, especially for heavy battery pack, the advantage is more obvious.

[0018] Improve the heat dissipation effect: by raising the height of the battery pack body, the space between the bottom of the battery pack and the bottom of the cabinet is increased, which promotes the circulation of air under the battery pack. Air can better circulate around the battery pack, helping to remove the heat generated during battery operation, avoiding the accumulation of heat at the bottom and around the battery pack, thereby reducing the risk of explosion caused by high temperature accumulation, improving the safety and stability of the battery pack, and prolonging the service life of the battery.

[0019] 2, in the utility model, by the setting of sliding block, clamping block, groove, inner sliding rail, the following advantages are achieved:

[0020] Precise positioning and stable installation: during the installation of the battery pack body into the cabinet, the directional movement of the sliding block 4 along the inner sliding rail 5 ensures that the battery pack body can accurately reach the preset installation position, and after the cabinet groove is engaged, the battery pack body is effectively limited and fixed from the front and rear directions, avoiding displacement of the battery pack due to vibration, shaking and other conditions in the cabinet, ensuring the stability of the battery pack during use, and ensuring that the connection and cooperation of the battery pack with other related parts in the cabinet are always accurate and reliable.

[0021] Conveniently take out maintenance: when the battery pack body needs to be maintained, replaced, etc. The sliding block 4 and the cabinet groove can be conveniently separated, which allows the user to easily release the fixing state of the battery pack body, conveniently take it out from the cabinet, reduces the difficulty of maintenance operation, improves the maintainability during the use cycle of the entire battery pack, saves maintenance time and labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application, in the drawings:

[0023] Figure 1 A schematic diagram of the energy storage battery structure with the explosion-proof pressure relief device is provided for the present application;

[0024] Figure 2 A schematic diagram of the rear view angle structure in the present application is provided for the present application;

[0025] Figure 3 A schematic diagram of the lying down test angle structure in the present application is provided for the present application;

[0026] Figure 4 A schematic diagram of the rear view angle structure in the present application is provided for the present application;

[0027] Figure 5 A schematic diagram of the side view angle and the cabinet with the protrusion inserted into the structure is provided for the present application;

[0028] Figure 6 A schematic diagram of the pulley structure in the present application is provided for the present application;

[0029] In the figure: 1, battery pack body; 2, positive electrode interface; 3, negative electrode interface; 4, sliding block; 5, inner sliding rail; 6, clamping block; 7, detection port; 8, inner groove; 9, concave cavity; 10, fixed plate; 11, pulley; 12, tension spring; 13, rotating shaft. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the position relation or position relation based on the position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and the like should be broadly understood, for example, "connection", can be fixed connection, can also be detachable connection, or integral connection;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] Please refer to Figures 1-6 The utility model provides a kind of energy storage battery with explosion-proof pressure relief device technical scheme: a kind of energy storage battery with explosion-proof pressure relief device, including battery pack main body 1 and the positive electrode interface 2 and negative electrode interface 3 being set at the upper side both ends position of battery pack main body 1;

[0034] The upper side middle inside position of battery pack main body 1 is provided with detection port 7;

[0035] The lower side both ends of battery pack main body 1 are respectively provided with recess cavity 9, the middle position of recess cavity 9 is provided with fixed plate 10, the end both sides position of fixed plate 10 is respectively provided with pulley 11, and the inner wall connection of fixed plate 10 and recess cavity 9 both sides is provided with rotating shaft 13, and the upper side position of fixed plate 10 is provided with tension spring 12.

[0036] In the embodiment, the positive electrode interface and the negative electrode interface are respectively arranged at the upper side both ends position of the battery pack main body 1, as the part of battery and external circuit connection, the positive electrode interface 2 and the negative electrode interface 3 are respectively used for connecting corresponding positive and negative electrode wires, so as to realize the input or output of electric energy, so that the battery can normally participate in the charging and discharging process in the whole power consumption system, and the principle is based on the basic principle of electric energy transmission that circuit connection forms a loop in electricity.

[0037] The detection port is located at the upper middle inner side of the battery pack body 1, mainly used for detecting various parameters (such as temperature, pressure, power and other related indicators) inside the battery. By connecting corresponding detection equipment such as temperature sensor, pressure sensor, power detection device, etc., the detection probe is inserted into the detection port, and then the data is collected and fed back to the external monitoring system, so as to realize real-time control of the working state inside the battery, and ensure the safe and stable operation of the battery. The principle is to provide a channel for the detection equipment to contact the internal environment of the battery and obtain related data.

[0038] In addition, a pressure relief valve is arranged at the bottom of the battery pack body 1. When the internal pressure of the battery abnormally rises to a set threshold, the pressure relief valve automatically opens to quickly discharge high-temperature and high-pressure gas, thereby reducing the internal pressure and avoiding the explosion of the battery shell due to the inability to withstand the pressure, so as to achieve the purpose of explosion-proof pressure relief.

[0039] As shown in Figures 2-6 The upper and lower ends of the tension spring 12 are connected to the fixed plate 10 and the inner wall of the recess 9 by bolt connection, respectively. The rotating shaft 13 penetrates the fixed plate 10, and the two ends of the rotating shaft 13 are connected to the inner wall of the recess 9 by sleeve embedding connection, respectively. The fixed plate 10 can rotate in the recess 9 through the rotating shaft 13. The pulley 11 is connected to the fixed plate 10 by movable connection.

[0040] Optionally, the user can set a protrusion at the bottom of the inside of the energy storage cabinet body in which the battery pack body 1 is stored, which is more convenient for the operation of the novel pulley assembly.

[0041] Preferably, when the user pushes the battery pack body 1 into the energy storage cabinet body, since the tension spring 12 is in the initial force storage state in the recess 9, as the battery pack body gradually enters the cabinet body, the protrusion at the bottom of the cabinet body will block the fixed plate 10. At this time, the tension spring 12 releases the elastic force, which pushes the fixed plate 10 downward along the vertical direction, so that the fixed plate 10 can rotate around the rotating shaft 13, thereby driving the pulleys 11 installed at the two sides of the end thereof by movable connection to move downward and contact the bottom of the cabinet.

[0042] By relying on the rolling friction (compared with sliding friction, the rolling friction has smaller resistance) between the pulley 11 and the bottom of the cabinet, the user can continue to push the battery pack body into the cabinet body more easily and quickly, which reduces the friction force required to be overcome during the pushing process, and makes the operation more labor-saving and convenient.

[0043] When the battery pack body is pushed to contact the inner wall of the rear side of the cabinet, the pulley 11 will first contact the inner wall of the rear side of the cabinet. Due to the reverse force exerted by the inner wall of the rear side of the cabinet on the pulley 11, and combined with the rotation characteristics of the rotating shaft 13, the fixed plate 10 will rotate again around the rotating shaft 13, so that the fixed plate 10 finally maintains a vertical state with the battery pack body 1.

[0044] During this process, the pulley 11 acts as a support point and a rotation fulcrum, effectively raising the height of the battery pack body 1 by changing the angle of the fixed plate 10, thereby creating more space below the battery pack.

[0045] As shown in Figures 1-5 The upper left and right end positions of the battery pack body 1 are respectively provided with inner grooves 8, the front and rear ends of the inner grooves 8 are respectively provided with inner sliding rails 5, and the middle upper position of the inner grooves 8 is provided with a sliding block 4. The connection positions of the sliding block 4 and the two end inner sliding rails 5 are respectively provided with clamping blocks 6, the clamping blocks 6 are connected with the inner sliding rails 5 by clamping and embedding connection, the sliding block 4 can move in the inner sliding rail 5 through the clamping block 6, and the sliding block 4 is in the shape of L.

[0046] Optionally, a groove matching the structure of the sliding block 4 can be provided on the outer side of the energy storage cabinet. After the battery pack body 1 is stored in the cabinet, the sliding block 4 can be embedded in the groove.

[0047] Preferably, when the user pushes the battery pack body 1 into the energy storage cabinet, as the battery pack body 1 moves, the sliding block 4 provided in the inner groove 8 at the upper left and right end positions of the battery pack body 1 will move along the track of the inner sliding rail 5 by relying on the clamping block 6 at the connection position of the sliding block 4 and the inner sliding rail 5. The clamping block 6 plays a precise limiting and guiding role, ensuring that the sliding block 4 can only smoothly slide in the inner sliding rail 5 along the predetermined straight line direction, thereby ensuring the stability and accuracy of the entire movement process.

[0048] After the height is raised, the clamping stage: when the pulley assembly contacts the inner wall of the rear side of the cabinet and raises the battery pack body 1 to a certain height, the L-shaped sliding block 4 can be embedded in the groove provided in the middle of the cabinet. At this time, the sliding block 4 reaches the corresponding position along the previous moving direction, and the L-shaped corner of the sliding block 4 is clamped into the groove, further raising and fixing the battery pack body from the front and rear directions, so that the battery pack body is in a relatively stable and height-appropriate installation state in the cabinet.

[0049] When the battery pack is taken out: when the user needs to take out the battery pack body, only a certain external force is needed to pull out the sliding block 4 from the groove in the cabinet, so that the sliding block 4 is disengaged from the embedded state with the groove, and then the battery pack body can be conveniently pulled out of the cabinet in the opposite direction to the pushing-in direction.

[0050] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy storage battery with explosion-proof pressure relief device, comprising a battery pack body (1) and a positive electrode interface (2) and a negative electrode interface (3) arranged at the upper two ends of the battery pack body (1). A detection port (7) is arranged at the middle inner side of the upper side of the battery pack body (1). characterized in that Recesses (9) are respectively formed at the lower two ends of the battery pack body (1), a fixed plate (10) is arranged at the middle position of the recess (9), pulleys (11) are respectively arranged at the two end positions of the fixed plate (10), a rotating shaft (13) is arranged at the connection between the fixed plate (10) and the inner wall of the recess (9), and a tension spring (12) is arranged at the upper position of the fixed plate (10).

2. The energy storage battery with anti-explosion pressure relief device according to claim 1, characterized in that: The upper and lower ends of the tension spring (12) are connected with the inner wall of the recess (9) and the fixed plate (10) by bolt connection.

3. The energy storage battery with anti-explosion pressure relief device according to claim 2, characterized in that: The rotating shaft (13) penetrates the fixed plate (10), and the two ends of the rotating shaft (13) are connected with the inner wall of the recess (9) by sleeve embedding connection.

4. The energy storage battery with anti-explosion pressure relief device according to claim 3, characterized in that: The fixed plate (10) can rotate in the recess (9) through the rotating shaft (13), and the pulley (11) is connected with the fixed plate (10) by movable connection.

5. The energy storage battery with anti-explosion pressure relief device according to claim 1, characterized in that: Inner grooves (8) are respectively formed at the left and right end positions of the upper side of the battery pack body (1), and inner slide rails (5) are respectively formed at the inner walls of the front and rear ends of the inner grooves (8).

6. The energy storage battery with anti-explosion pressure relief device according to claim 5, characterized in that: A sliding block (4) is arranged at the middle upper position of the inner groove (8), and clamping blocks (6) are respectively arranged at the connection positions of the sliding block (4) and the two end inner slide rails (5).

7. The energy storage battery with anti-explosion pressure relief device according to claim 6, characterized in that: The clamping block (6) is connected with the inner slide rail (5) by clamping embedding connection, the sliding block (4) can move in the inner slide rail (5) through the clamping block (6), and the sliding block (4) is L-shaped.

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