A detector, energy storage device and energy storage system

Abstract

The detector and energy storage system disclosed in the utility model relate to the technical field of energy storage devices, including an installation shell and a detection assembly, the installation shell including a top cover and a base, the top cover and the base are connected to form an installation space, the installation shell is used to be detachably arranged on the outer wall of the energy storage device, and at least one of the top cover and the base is used to be detachably connected to the energy storage device, and a detection avoidance hole is opened on the top cover, and the detection avoidance hole connects the installation space and the interior of the energy storage device; the detection assembly is arranged in the installation space, and can monitor the interior of the energy storage device at the detection avoidance hole. The detector disclosed in the utility model is arranged on the outer wall of the energy storage device, and when the detector needs to be repaired and replaced, it can be directly operated outside the energy storage device, which is convenient for disassembly and assembly, without disassembling the energy storage device and then disassembling and taking out the detector for repair, which can effectively prevent the problem of reduced protection level caused by multiple disassembly and assembly of the energy storage device.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, and more specifically, to a detector and an energy storage system. Background Art

[0002] With the booming development of the energy storage market, the safety of energy storage equipment has become an issue that cannot be ignored. The energy storage fire protection system is one of the key measures to ensure the safety of lithium battery energy storage equipment. It can effectively reduce the risk of fire and explosion of lithium battery energy storage equipment and enhance the safety and reliability of the equipment. As the core of the energy storage fire protection system, the detector is responsible for monitoring the battery module and alarming when an abnormality is found. In addition, the detector can also cooperate with the fire controller to achieve automatic control and remote monitoring.

[0003] At present, most detectors of energy storage fire protection systems are difficult to disassemble and maintain. Therefore, how to improve the maintainability and ease of disassembly and assembly of the detectors has become a technical problem that technical personnel in this field need to solve. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a detector to improve the maintainability and ease of assembly and disassembly of the detector.

[0005] Another object of the utility model is to provide an energy storage device including the above-mentioned detector.

[0006] Another object of the present utility model is to provide an energy storage system including the above energy storage device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A detector, comprising:

[0009] An installation shell, comprising a top cover and a base, wherein the top cover and the base are connected to form an installation space, the installation shell is used to be detachably arranged on the outer wall of the energy storage device, and at least one of the top cover and the base is used to be detachably connected to the energy storage device, and a detection avoidance hole is opened on the top cover, and the detection avoidance hole is used to connect the installation space with the interior of the energy storage device;

[0010] A detection component is arranged in the installation space and is used to monitor the interior of the energy storage device at the detection avoidance hole.

[0011] Optionally, in the above-mentioned detector, the top cover is connected to the base, and the top cover is used to be embedded in the interior of the energy storage device, and the base is used to be arranged outside the energy storage device, and is provided with a mounting flange for fitting with the outer wall of the energy storage device, and the mounting flange is provided with a connecting hole for the connecting part to pass through.

[0012] Optionally, in the above-mentioned detector, a seal is tightly arranged between the mounting flange and the energy storage device.

[0013] Optionally, in the above-mentioned detector, the mounting flange and the sealing element are an integrated structure or a split structure.

[0014] Optionally, in the above-mentioned detector, a sealing installation groove for embedding the sealing member is provided on the installation flange, or a positioning hole corresponding to the connecting hole and for the connecting member to pass through is opened on the sealing member.

[0015] Optionally, in the above-mentioned detector, a pressure relief valve port is provided on the base, the pressure relief valve port connects the installation space with the outside, and a pressure relief valve is provided at the pressure relief valve port through an elastic member;

[0016] When the pressure in the installation space is less than or equal to a preset value, the elastic member is in an initial state and causes the pressure relief valve to block the pressure relief valve port; when the pressure in the installation space is greater than the preset value, the pressure relief valve drives the elastic member to deform and open the pressure relief valve port.

[0017] Optionally, in the above-mentioned detector, a heat dissipation avoidance hole is opened on the base, the heat dissipation avoidance hole connects the installation space with the outside world, and a heat dissipation component is sealed at the heat dissipation avoidance hole, the first side of the heat dissipation component is in direct contact with the detection component or through a thermal conductive material, and the second side is located outside the installation space and is used for heat exchange with the outside world.

[0018] Optionally, in the above detector, a heat dissipation fin is provided on the second side of the heat dissipation component.

[0019] Optionally, in the above-mentioned detector, a signal connector is provided on the top cover or the base, the signal connector is used to connect the detected component with an external cable, and the signal connector is a waterproof signal connector.

[0020] Optionally, in the above-mentioned detector, the top cover and the base are detachably connected.

[0021] Optionally, in the above-mentioned detector, the detection component includes one or more of a temperature sensor, a pressure sensor, a humidity sensor, a gas sensor, a thermal runaway sensor and a collision sensor.

[0022] Optionally, in the above-mentioned detector, the detection component includes a sensing component and an alarm component, the sensing component is used to monitor the environmental conditions inside the energy storage device and the working status of the battery, and the alarm component is used to issue an alarm when the sensing component detects that a preset condition is met.

[0023] An energy storage device comprises a shell and the above-mentioned detector, wherein the shell is provided with a detection installation opening, the detector is arranged on the outer wall of the shell, and the detection avoidance hole is communicated with the detection installation opening.

[0024] An energy storage system comprises the above energy storage device.

[0025] The detector provided by the utility model includes an installation shell and a detection component. The installation shell includes a top cover and a base. The top cover and the base are connected to form an installation space. The installation shell is used to be detachably arranged on the outer wall of the energy storage device, and at least one of the top cover and the base is used to be detachably connected to the energy storage device. A detection avoidance hole is opened on the top cover, and the detection avoidance hole connects the installation space and the interior of the energy storage device; the detection component is arranged in the installation space, and can monitor the interior of the energy storage device at the detection avoidance hole, wherein the detection component can specifically monitor the working state of the battery inside the energy storage device and the environmental state in which it is located, so as to ensure the stable operation of the energy storage device and extend the service life of the battery. The installation shell can be detachably arranged on the outer wall of the energy storage device by bolt connection, clamping, etc.

[0026] Compared with the prior art, the detector provided by the utility model is arranged on the outer wall of the energy storage device. When the detector needs to be repaired or replaced, it can be operated directly outside the energy storage device, which is convenient for disassembly and assembly. There is no need to disassemble the energy storage device and then disassemble and take out the detector for repair. This can effectively prevent the problem of reduced protection level caused by multiple disassembly and assembly of the energy storage device.

[0027] The energy storage device provided by the utility model includes a housing and the above-mentioned detector, the housing is provided with a detection installation opening, the detector is provided on the outer wall of the housing, and the detection avoidance hole corresponds to the position of the detection installation opening, and the detection component can monitor the working state of the battery inside the energy storage device at the detection installation opening. Due to the above-mentioned detector, the above-mentioned beneficial effects are also achieved, and other structures refer to the prior art and are not described here in detail.

[0028] The energy storage system disclosed in the present invention includes the above-mentioned energy storage device, so it also has the above-mentioned beneficial effects. Other structures refer to the prior art and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 An axonometric diagram of a detector disclosed in an embodiment of the utility model;

[0031] Figure 2 An exploded view of the detector disclosed in the embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the installation structure of the detector disclosed in the embodiment of the utility model on the energy storage device;

[0033] Figure 4 A cross-sectional view of the installation of the detector disclosed in the embodiment of the utility model on the energy storage device;

[0034] Figure 5 It is a schematic diagram of the structure of the energy storage system disclosed in the embodiment of the utility model.

[0035] Among them, 1 is a base, 2 is a top cover, 3 is a detection component, 4 is a signal connector, 5 is a seal, 6 is a connecting piece, 7 is an energy storage device, and 8 is a cabinet. DETAILED DESCRIPTION

[0036] The core of the utility model is to disclose a detector to improve the maintainability and easy disassembly of the detector.

[0037] Another core of the utility model is to disclose an energy storage device including the above-mentioned detector.

[0038] Another core of the utility model is to disclose an energy storage system including the above energy storage device.

[0039] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0040] Combination Figure 1-Figure 4The detector disclosed in the utility model includes a mounting shell and a detection component 3. The mounting shell includes a top cover 2 and a base 1. The top cover 2 and the base 1 are connected to form a mounting space. The mounting shell is used to be detachably arranged on the outer wall of the energy storage device 7, and at least one of the top cover 2 and the base 1 is used to be detachably connected to the energy storage device 7. A detection avoidance hole is opened on the top cover 2, and the detection avoidance hole connects the mounting space and the interior of the energy storage device 7; the detection component 3 is arranged in the mounting space, and can monitor the interior of the energy storage device 7 at the detection avoidance hole, wherein the detection component 3 can specifically monitor the working state of the battery inside the energy storage device 7 and the environmental state in which it is located, so as to ensure the stable operation of the energy storage device and extend the service life of the battery. The mounting shell can be detachably arranged on the outer wall of the energy storage device 7 by bolt connection, clamping, etc.

[0041] Compared with the prior art, the detector disclosed in the utility model is arranged on the outer wall of the energy storage device 7. When the detector needs to be repaired or replaced, it can be operated directly outside the energy storage device 7, which is convenient for disassembly and assembly. There is no need to disassemble the energy storage device 7 and then disassemble and take out the detector for repair. This can effectively prevent the problem of reduced protection level caused by multiple disassembly and assembly of the energy storage device 7.

[0042] The detection component 3 includes a sensing component and an alarm component. The sensing component is used to monitor the environmental conditions inside the energy storage device 7 and the working status of the battery. The alarm component is used to give an alarm when the sensing component detects that a preset condition is met.

[0043] The above-mentioned sensing components may specifically include one or more of a temperature sensor, a pressure sensor, a humidity sensor, a gas sensor, a thermal runaway sensor and a collision sensor. Each sensor is integrated on the same circuit board and can monitor the working status and temperature changes of the battery in the energy storage device 7 in real time.

[0044] Specifically, the temperature sensor can monitor the temperature inside the energy storage device 7 (battery pack) to prevent extreme temperature changes such as overheating or overcooling from affecting the performance and life of the battery. The pressure sensor is used to monitor the pressure inside the energy storage device 7 to prevent gas accumulation from causing excessive internal pressure and explosion. The humidity sensor is used to monitor the humidity inside the energy storage device 7 to prevent excessive humidity from affecting the performance and safety of the battery. The gas sensor is used to monitor harmful gases that may be generated inside the energy storage device 7, such as hydrogen, carbon monoxide, etc., to ensure the safety of the energy storage device 7. The thermal runaway sensor is used to monitor early signs of thermal runaway of the battery so as to promptly prompt the operator to take measures to prevent further danger. The collision sensor can monitor the damage of the energy storage device 7 during the movement of the energy storage device 7 (such as the transportation process), so as to facilitate timely cutting off the battery power supply to avoid further damage. The warning component can alarm or warn when each sensor detects that the relevant indicators reach the preset value.

[0045] Combination Figure 1 and Figure 4 In one embodiment, the top cover 2 is used to be embedded in the interior of the energy storage device 7, the base 1 is used to be arranged outside the energy storage device 7, and a mounting flange for fitting with the outer wall of the energy storage device 7 is provided on the base 1. A connecting hole for the connecting member 6 to pass through is provided on the mounting flange, so that the base 1 is screwed to the outer shell of the energy storage device 7 for easy disassembly. At the same time, the mounting flange and the top cover 2 form a positioning step, which facilitates the positioning connection of the installation shell and the energy storage device 7.

[0046] The top cover 2 and the base 1 can be fixed by a detachable connection method such as bolt connection, buckle, etc., so as to facilitate the disassembly and maintenance of the detection component 3 in the installation space. The detection component 3 is arranged on the base 1 in a detachable connection method.

[0047] In order to avoid leakage at the connection position between the mounting housing and the energy storage device 7, a seal 5 is provided between the mounting flange and the energy storage device 7. The seal 5 is a sealing gasket or a sealing ring. The provision of the seal 5 can ensure the IP67 protection level after the detector is installed on the energy storage device 7, and avoid damaging the original protection level of the energy storage device 7.

[0048] Specifically, the seal 5 and the mounting flange can be an integrated structure or a split structure. When it is a split structure, the mounting flange is provided with a sealing installation groove for the seal 5 to be embedded, and the sealing installation groove can position the seal 5; or, the seal 5 is provided with a positioning hole corresponding to the connecting hole and through which the connector 6 can pass, and the connector 6 can pass through the connecting hole on the mounting flange and the positioning hole on the seal 5 at the same time, so that the seal 5 can be positioned while the base 1 and the energy storage device 7 are fastened.

[0049] When the pressure inside the energy storage device 7 is too high, there is a risk of explosion. Figure 4 The installation space is isolated from the outside world and is connected to the internal space of the energy storage device 7 only at the detection avoidance hole. Therefore, in order to enable the detector to have a pressure relief function, a pressure relief valve and other pressure relief structures can be set on the base 1. When the air pressure inside the energy storage device 7 reaches a preset value, the pressure relief valve can automatically open to relieve pressure. When the air pressure does not reach the preset value, the pressure relief valve automatically closes to prevent external impurities from entering the installation shell and the energy storage device 7, affecting the normal operation of the detection component 3 and the battery.

[0050] Furthermore, the pressure relief structure can be connected to communicate with the pressure sensor in the detection assembly 3, so that when the pressure sensor detects that the pressure in the energy storage device 7 reaches a preset value, the pressure relief structure is controlled to release pressure.

[0051] In one embodiment, a pressure relief valve port is provided on the base 1, and the pressure relief valve port connects the installation space with the outside world. A pressure relief valve is provided at the pressure relief valve port through an elastic member. When the pressure in the installation space is less than or equal to a preset value, the elastic member is in an initial state and applies a force to the pressure relief valve that can block the pressure relief valve port. When the pressure in the installation space is greater than the preset value, the pressure relief valve can be deformed by the air pressure inside the installation shell to open the pressure relief valve port, and connect the installation space with the outside world for pressure relief.

[0052] As a functional component, the detection component 3 will be affected by excessively high temperature in its working performance. Since the mounting housing is connected to the energy storage device 7 through the detection avoidance hole, the heat dissipation structure in the energy storage device 7 for dissipating heat from the battery can also cool the detection component 3 in the mounting housing to a certain extent. In order to optimize the heat dissipation effect of the detection component 3, the detector may further include a heat dissipation component, which may specifically be a heat pipe, a temperature equalizing plate, a semiconductor refrigeration sheet or other structures.

[0053] Taking the heat dissipation component as a heat pipe or a temperature equalizing plate as an example, a heat dissipation avoidance hole is provided on the base 1, and the heat dissipation avoidance hole connects the installation space with the outside world. The heat dissipation component is in heat dissipation avoidance hole for heat exchange with the outside world, and the connection position of the heat dissipation component and the heat dissipation avoidance hole is sealed by potting or other methods to prevent dust from the outside world from entering the installation space. The first side of the heat dissipation component is in direct contact with the detection component 3 or connected by means of thermal conductive material filling to reduce air thermal resistance. The second side of the heat dissipation component opposite to the first side is exposed at the heat dissipation avoidance hole and can exchange heat with the outside world. Heat dissipation fins for increasing the heat exchange area can also be provided on the second side.

[0054] The detection component 3 can be powered by a battery or other energy storage component or directly powered by wires. When powered by batteries, the detection component 3 can be continuously supplied with power by replacing the batteries, or the battery can be directly charged to ensure the battery power storage. Whether it is charging the battery, directly powering the detection component 3, or connecting the detection component 3 to the outside world, it is necessary to realize the electrical connection between the circuit board of the detection component 3 and the outside world. Figure 1 A signal connector 4 is provided on the base 1 , and the signal connector 4 passes through the side wall of the base 1 and can be connected to the detection component 3 and the external cable.

[0055] According to actual conditions, the signal connector 4 can be a waterproof signal connector, which has a waterproof function and is easy to quickly connect and disconnect with an external cable. Figure 1 A hole is opened on one side wall of the base 1 and the signal connector 4 can be fixed by screws or bolts, which is convenient for disassembly and assembly.

[0056] The energy storage device 7 disclosed in the utility model includes a housing and the above-mentioned detector, the housing is provided with a detection installation port, the detector is provided on the outer wall of the housing, and the detection avoidance hole corresponds to and is connected to the position of the detection installation port, and the detection component 3 can monitor the working state of the battery inside the energy storage device 7 at the detection installation port. Since it has the above-mentioned detector, it also has the above-mentioned beneficial effects, and other structures refer to the prior art and are not repeated here.

[0057] The energy storage device 7 may be a battery pack, that is, the detector disclosed in the present utility model may be applied to a PACK-level energy storage fire fighting system (referring to a fire fighting system designed for a battery pack-level energy storage device).

[0058] Combination Figure 5 The energy storage system disclosed in the present invention includes the above-mentioned energy storage device 7, which can be arranged in a cabinet 8. Due to the above-mentioned energy storage device 7, the above-mentioned beneficial effects are also achieved. Other structures refer to the prior art and will not be described in detail here.

[0059] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A detector, characterized in that: include: An installation shell, comprising a top cover (2) and a base (1), the top cover (2) and the base (1) being connected to form an installation space, the installation shell being used to be detachably arranged on the outer wall of the energy storage device (7), and at least one of the top cover (2) and the base (1) being used to be detachably connected to the energy storage device (7), the top cover (2) being provided with a detection avoidance hole, the detection avoidance hole being used to connect the installation space with the interior of the energy storage device (7); A detection component (3) is arranged in the installation space and is used to monitor the interior of the energy storage device (7) at the detection avoidance hole.

2. The detector according to claim 1, characterized in that The top cover (2) is connected to the base (1), and the top cover (2) is used to be embedded in the interior of the energy storage device (7). The base (1) is used to be arranged outside the energy storage device (7) and is provided with a mounting flange for fitting with the outer wall of the energy storage device (7). The mounting flange is provided with a connecting hole for the connecting member (6) to pass through.

3. The detector according to claim 2, characterized in that A sealing member (5) is tightly arranged between the mounting flange and the energy storage device (7).

4. The detector according to claim 3, characterized in that The mounting flange and the sealing element (5) are of an integrated structure or a split structure.

5. The detector according to claim 3, characterized in that The mounting flange is provided with a sealing mounting groove for the sealing member (5) to be embedded therein, or the sealing member (5) is provided with a positioning hole corresponding to the connecting hole and for the connecting member (6) to pass through.

6. The detector according to any one of claims 1 to 5, characterized in that: The base (1) is provided with a pressure relief valve port, the pressure relief valve port connects the installation space with the outside, and a pressure relief valve is arranged at the pressure relief valve port via an elastic member; When the pressure in the installation space is less than or equal to a preset value, the elastic member is in an initial state and causes the pressure relief valve to block the pressure relief valve port; when the pressure in the installation space is greater than the preset value, the pressure relief valve drives the elastic member to deform and open the pressure relief valve port.

7. The detector according to any one of claims 1 to 5, characterized in that: The base (1) is provided with a heat dissipation avoidance hole, the heat dissipation avoidance hole connects the installation space with the outside, and a heat dissipation component is sealed at the heat dissipation avoidance hole, a first side of the heat dissipation component is in direct contact with the detection component (3) or in contact with it through a thermal conductive material, and a second side is located outside the installation space and is used for heat exchange with the outside.

8. The detector according to claim 7, characterized in that The second side of the heat dissipation component is provided with heat dissipation fins.

9. The detector according to any one of claims 1 to 5, characterized in that: A signal connector (4) is provided on the top cover (2) or the base (1), the signal connector (4) is used to connect the detected component (3) with an external cable, and the signal connector (4) is a waterproof signal connector.

10. The detector according to any one of claims 1 to 5, characterized in that: The top cover (2) and the base (1) are detachably connected.

11. The detector according to any one of claims 1 to 5, characterized in that: The detection component (3) comprises one or more of a temperature sensor, a pressure sensor, a humidity sensor, a gas sensor, a thermal runaway sensor and a collision sensor.

12. The detector according to any one of claims 1 to 5, characterized in that: The detection component (3) comprises a sensing component and an alarm component, wherein the sensing component is used to monitor the environmental conditions inside the energy storage device (7) and the working state of the battery, and the alarm component is used to issue an alarm when the sensing component detects that a preset condition is met.

13. An energy storage device, characterized in that: It comprises a shell and a detector as described in any one of claims 1 to 12, wherein the shell is provided with a detection installation opening, the detector is arranged on the outer wall of the shell, and the detection avoidance hole is connected with the detection installation opening.

14. An energy storage system, characterized in that: Comprising the energy storage device (7) as claimed in claim 13.

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