Composite detector

Abstract

The invention relates to a composite detector, and relates to the field of detectors. The device comprises a shell, a detection circuit module used for detecting gas and temperature is arranged in the shell, a detection head is arranged on the shell, a through hole communicated with the interior of the shell is formed in the detection head, the shell can be detachably arranged outside a battery, and the shell can be communicated with the interior of a battery pack through the through hole. According to the invention, the working efficiency of an operator in the process of overhauling or replacing the detector can be improved.

Description

Technical Field

[0001] The present application relates to the field of detectors, and in particular to a composite detector. Background Art

[0002] The scale and speed of construction of renewable energy such as photovoltaic and wind power have accelerated. The development of energy storage technology has effectively solved the passive regulation burden of the power grid and is the key to supporting the stable and large-scale development of renewable energy.

[0003] Energy storage power stations are used to store electricity generated by photovoltaic, wind power and other power generation devices. There are several battery packs for storing electricity in the energy storage power station. For the safe use of the energy storage power station, each battery pack will be equipped with a detector. The detector is used to detect the gas and temperature in the battery pack to determine whether there is a fire in the battery pack. Once a fire is detected, a series of fire prevention measures will be taken. In order to ensure the normal operation of the detector, the operator needs to regularly inspect and repair the detector and replace the damaged or aged detector.

[0004] Traditional detectors are installed in battery packs. When the detector needs to be repaired or replaced, the battery pack needs to be disassembled. After the inspection or replacement, the protection level of the battery pack needs to be retested. The whole process is too cumbersome, which seriously affects the operator's work efficiency in repairing or replacing the detector. Summary of the invention

[0005] In order to improve the operator's work efficiency during the process of repairing or replacing a detector, the present application provides a composite detector.

[0006] The composite detector provided in this application adopts the following technical solution: A composite detector comprises a shell, wherein a detection circuit module for detecting gas and temperature is arranged inside the shell, a detection head is arranged on the shell, and a through hole communicating with the interior of the shell is arranged on the detection head, the shell can be detachably arranged outside a battery pack, and the shell can be communicated with the interior of the battery pack through the through hole.

[0007] By adopting the above technical solution, the shell of the detector can be detachably installed outside the battery pack, and the detection circuit module in the shell detects the gas and temperature status in the battery pack through the through hole, thereby monitoring whether the battery is on fire. The shell of the detector is detachably installed outside the battery pack, which is convenient for the operator to regularly inspect or replace the detector. The operator does not need to open the battery pack to install and disassemble the detector, which simplifies the operation process and is conducive to improving the operator's work efficiency during the inspection or replacement of the detector.

[0008] Optionally, the shell includes a shell body and a shell cover, the through hole is located on the shell cover, the shell cover is detachably installed on the shell body, and an installation cavity for accommodating the detection circuit module is formed between the shell cover and the shell, and the wiring harness connected to the circuit module passes through the shell body and extends out of the shell body.

[0009] By adopting the above technical solution, the shell cover and the shell body can be detachably spliced, which is convenient for the operator to replace or repair the detection circuit module in the shell. In this way, the operator does not need to replace the entire detector, which is conducive to reducing resource waste and has energy-saving and environmental protection effects.

[0010] Optionally, a first sealant for sealing a connection seam between the shell body and the shell cover is disposed on one end of the shell body facing the shell cover, and a second sealant for sealing a gap between the shell body and the battery pack is disposed on the shell cover.

[0011] By adopting the above technical solution, the first sealant is used to improve the sealing effect between the shell body and the shell cover, and the second sealant is used to improve the sealing effect between the shell cover and the battery pack, thereby reducing the entry of outside air into the shell and the battery pack, which may cause inaccurate detection results of the detection circuit module.

[0012] Optionally, the shell body is provided with a cylinder for the wire harness to pass through, and the wire harness is sleeved with a sealing cylinder for closing a gap between the wire harness and the inner wall of the cylinder.

[0013] By adopting the above technical solution, a sealing cylinder is provided to seal between the wiring harness and the cylinder body, thereby reducing the entry of gas or moisture into the shell, which may lead to inaccurate detection results of the detection circuit module.

[0014] Optionally, a mounting groove capable of accommodating a sealing tube is provided on the inner wall of the cylinder body at one end facing away from the shell body, the sealing tube is partially located in the mounting groove, a sleeve is provided on the outer sleeve of the sealing tube, the sleeve portion is passed through the cylinder body, one end of the sleeve extends out of the mounting groove and is fixedly connected to a convex ring, the outer diameter of the convex ring is larger than the inner diameter of the cylinder, a plurality of pressing plates are fixedly connected to the convex ring, the pressing plates can be pressed tightly against the outer wall of the sealing tube, a sleeve is provided on the wiring harness, a slope for pushing each pressing plate to close together is provided on the inner wall of the sleeve, and the sleeve is detachably arranged on the cylinder body.

[0015] By adopting the above technical scheme, one end of the sealing cylinder is inserted into the installation groove and abuts against the bottom wall of the installation groove close to the shell body. The ring and the convex ring are both sleeved on the sealing cylinder, and the ring is inserted into the installation groove. The convex ring is used to limit the retraction of each pressing piece into the installation groove. Several pressing pieces on the convex ring are pressed tightly on the end surface of the sealing cylinder away from the shell body. The sleeve is sleeved on the wire harness. The operator pushes the sleeve to move toward the cylinder body. The inclined surface of the sleeve abuts against each pressing piece and pushes each pressing piece to close together and presses the sealing cylinder against the outer wall of the wire harness. As the sleeve continues to move toward the shell body, under the thrust of the inclined surface on the pressing piece and the sealing cylinder, the end of the sealing cylinder facing the shell body is pressed against the bottom wall of the installation groove, and then the sealing cylinder is pressed against the wire harness and the inner wall of the cylinder at the same time, so as to achieve the sealing effect of the gap between the wire harness and the shell body. In addition, the sleeve pushes the pressing piece to close through the inclined surface and compresses the sealing cylinder, thereby indirectly compressing the wiring harness, fixing the position between the wiring harness and the cylinder, and reducing the loosening of the wiring harness and the detection circuit module under the action of external force, resulting in poor contact or directly causing a circuit breaker.

[0016] Optionally, a circle of step grooves for installing the detection circuit module is provided on the inner wall of the shell body, and a limiting component for limiting the detection circuit module in the step groove is provided in the shell body.

[0017] By adopting the above technical solution, the step groove is used to position the detection circuit module, and a limiting component is provided to limit the detection circuit module to the step groove, thereby achieving fixed position of the detection circuit module in the shell body.

[0018] Optionally, the limiting assembly includes a bolt, which passes through the detection circuit module and is threadedly connected to the inner wall of the shell body.

[0019] By adopting the above technical solution, the bolts are passed through the detection circuit module and the bolts are threadedly connected to the inner wall of the shell body. The detection circuit module is pressed into the step groove by the bolts to fix the detection circuit module in a detachable position in the shell body.

[0020] Optionally, a gasket and a spring washer are sleeved on the bolt, the bolt presses the spring washer onto the gasket, and the gasket presses against the detection circuit module.

[0021] By adopting the above technical solution, the bolt presses the spring washer onto the gasket, and the detection circuit module is limited in the step groove by the gasket, so that the detection circuit module is fixed in a removable position in the shell body. By arranging the spring washer to tighten the bolt, an anti-loosening effect can be achieved. By arranging the gasket between the spring washer and the detection circuit module, direct contact between the spring washer and the detection circuit module is avoided, thereby reducing the local pressure of the detection circuit module when it is pressurized, thereby reducing the situation where the local pressure is too large when the detection circuit board is installed, causing damage.

[0022] Optionally, a filter screen is detachably provided on the shell cover, and the filter screen covers the through hole.

[0023] By adopting the above technical solution, a filter is set, and the filter covers the through hole, so as to block dust, impurities and flying insects.

[0024] To summarize, the present application includes at least one of the following beneficial technical effects: the detector shell is detachably installed outside the battery pack, which is convenient for the operator to regularly inspect or replace the detector. The operator does not need to open the battery pack and then install and disassemble the detector, which simplifies the operation process and helps to improve the operator's work efficiency during the inspection or replacement of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a cross-sectional view of the installation cavity used to illustrate the embodiment of the present application.

[0027] Figure 3 It is an exploded view of the embodiment of the present application for illustrating the limit assembly.

[0028] Figure 4 It is an exploded view of the sealing cylinder, the sleeve ring, the convex ring and the pressing piece according to the embodiment of the present application.

[0029] Figure 5 yes Figure 2 Enlarged schematic diagram of part A.

[0030] Explanation of the accompanying drawings: 1. Shell; 11. Shell body; 12. Shell cover; 13. Step groove; 14. Mounting cavity; 15. Detection head; 16. Through hole; 2. Detection circuit module; 21. Wiring harness; 3. First seal; 31. Second seal; 32. Filter; 33. Limit ring; 4. Limit assembly; 41. Bolt; 42. Spring washer; 43. Gasket; 5. Cylinder; 51. Mounting groove; 52. Sealing cylinder; 53. Ring; 54. Convex ring; 55. Pressing sheet; 56. Sleeve; 57. Inclined surface. Implementation

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The present application embodiment discloses a composite detector. Figure 1 and Figure 2The composite detector includes a housing 1, a detection circuit module 2 is arranged in the housing 1, and the detection circuit module 2 includes a circuit board, on which gas detection sensors for detecting hydrogen and carbon monoxide and a temperature sensor for monitoring temperature are installed, and a wiring harness 21 is connected to the circuit board, and the wiring harness 21 passes through the housing 1 and extends out of the housing 1, and is used to power the circuit board and transmit the detection information on the circuit board to the monitoring host. The housing 1 can be of any shape. In the embodiment of the present application, the housing 1 is cylindrical, and a cylindrical detection head 15 is coaxially arranged on the end face of one end of the housing 1 along its own axis, and a through hole 16 communicating with the interior of the housing 1 is opened on the end face of the detection head 15 away from the housing 1. The housing 1 can be detachably installed on the battery pack, and the battery pack has a mounting hole communicating with the interior of itself at a position corresponding to the housing 1. When the housing 1 is installed on the battery pack, the detection head 15 is plugged into the mounting hole, so that the housing 1 is connected to the interior of the battery pack through the through hole 16.

[0033] The housing 1 can be detachably mounted on the battery pack by means of a flange fixation, can be detachably mounted on the battery pack by means of a threaded member, or can be mounted on the battery pack by means of an interference fit. In the embodiment of the present application, a thread is provided on the outer peripheral wall of the detection head 15, and the detection head 15 is fixedly connected to the mounting hole of the battery pack by means of a threaded connection, thereby achieving the effect of detachably mounting the housing 1 on the outer wall of the battery pack.

[0034] The housing 1 includes a shell body 11, which is a rotating body. A shell cover 12 is detachably provided at one end of the shell body 11. The opposite surfaces of the shell body 11 and the shell cover 12 are both provided with inner cavities. When the shell cover 12 is installed on the shell body 11, the shell body 11 and the shell cover 12 enclose an installation cavity 14 for accommodating the detection circuit module 2. The shell body 11 can be detachably connected to the shell cover 12 by means of flange fixing, or the shell body 11 and the shell cover 12 can be connected by a threaded member. In the embodiment of the present application, an external thread is provided on the outer wall of the shell body 11 near the end of the inner cavity opening thereof, and a circle of inner nuts is provided on the inner wall of the shell cover 12 near the end of the inner cavity opening thereof. The shell cover 12 can be threadedly connected to the shell body 11, so as to realize a detachable connection between the shell cover 12 and the shell body 11.

[0035] A first sealing member 3 is provided between the shell cover 12 and the shell body 11. The first sealing member 3 may be a rubber ring clamped between the shell cover 12 and the shell body 11, or a sealing strip fixedly connected to the shell cover 12 or the shell body 11. In the embodiment of the present application, a first annular groove is coaxially provided on the outer wall of the shell body 11, and a circle of first sealing rings is embedded in the first annular groove. The first sealing rings may be embedded or fixed by gluing in the first annular groove. When the shell cover 12 is threadedly connected to the shell body 11, the end face of the shell cover 12 close to the inner cavity opening is pressed against the first sealing ring, thereby achieving a sealing effect between the shell body 11 and the shell cover 12.

[0036] The detection head 15 is coaxially arranged on the end face of the shell cover 12 away from the shell body 11, and the through hole 16 on the detection head 15 is connected to the installation cavity 14. The outer diameter of the detection head 15 is smaller than the outer diameter of the shell cover 12, and a second sealing member 31 is arranged on the end face of the shell cover 12 away from the detection head 15. The second sealing member 31 can be a rubber ring sleeved on the outer wall of the detection head 15, or it can be fixedly connected to the shell cover 12 or a sealing strip on the battery pack. In the embodiment of the present application, a circle of second annular grooves is provided on the end face of the shell cover 12 close to the detection head 15, and the second annular groove is coaxially arranged with the shell cover 12, and a circle of second sealing rings is embedded or glued in the second annular groove. When the operator installs the shell 1 on the battery pack, the second sealing ring on the shell cover 12 presses against the outer wall of the battery pack to achieve sealing and fixation between the battery pack and the shell cover 12.

[0037] The housing cover 12 is provided with a detachable filter screen 32 for covering the through hole 16. The filter screen 32 can be fixed in the housing cover 12 by a retaining ring or a threaded member. In the embodiment of the present application, the housing cover 12 is interference-fitted with the limiting ring 33, and the limiting ring 33 limits the filter screen 32 in the housing cover 12, so that the filter screen 32 can be detachably installed in the housing cover 12.

[0038] like Figure 2 and Figure 3 A circle of step grooves 13 are provided on the inner wall of the shell body 11 near the inner cavity opening. The step grooves 13 are used to accommodate the circuit board of the detection circuit module 2. A limiting component 4 is provided in the shell body 11 for limiting the circuit board of the detection circuit module 2 in the step grooves 13. The limiting component 4 can limit the circuit board in the step grooves 13 by a retaining spring, or can fix the circuit board of the detection circuit module 2 in the step grooves 13 by a screw.

[0039] In the embodiment of the present application, the limiting assembly 4 includes a plurality of bolts 41 that penetrate the circuit board of the detection circuit module 2. One end of the bolt 41 that passes through the circuit board of the detection circuit module 2 is threadedly connected to the inner wall of the shell body 11. The circuit board of the detection circuit module 2 is pressed tightly into the step groove 13 by the bolt 41.

[0040] A spring washer 42 and a gasket 43 may be sleeved on the bolt 41 on the side of the detection circuit module 2 circuit board facing the shell cover 12. The gasket 43 is located between the spring washer 42 and the detection circuit module 2 circuit board. The operator tightens the spring washer 42 against the detection circuit module 2 circuit board by tightening the bolt 41.

[0041] like Figure 4 and Figure 5A cylindrical barrel 5 is coaxially arranged on the end face of the shell body 11 away from the shell cover 12. The barrel 5 can be fixedly connected to the shell body 11 by welding or integral molding. The wire harness 21 can extend out of the shell body 1 through the barrel 5. A circle of mounting grooves 51 is coaxially arranged on the inner wall of the barrel 5. A cylindrical sealing cylinder 52 is sleeved on the wire harness 21. One end of the sealing cylinder 52 along its own axial direction is inserted into the mounting groove 51, and the other end of the sealing cylinder 52 along its own axial direction extends out of the mounting groove 51. A sleeve 53 is provided on the outer sleeve of the sealing cylinder 52. The outer diameter of the sleeve 53 is smaller than the diameter of the mounting groove 51. A convex ring 54 is coaxially integrally molded on one end face of the sleeve 53. The convex ring 54 is sleeved on the sealing cylinder 52. The outer diameter of the convex ring 54 is larger than the diameter of the mounting groove 51 and smaller than the outer diameter of the barrel 5. The end of the convex ring 54 away from the sleeve ring 53 is fixedly connected with a plurality of pressing plates 55, which are elastic and evenly arranged along the circumferential direction of the convex ring 54, and a gap is left between two adjacent convex rings 54. The ends of the pressing plates 55 away from the convex ring 54 are inclined toward each other to prevent the sealing cylinder 52 from passing through the hole surrounded by the pressing plates 55. The wiring harness 21 is also provided with a sleeve 56, and the cylinder body 5 is detachably arranged on the cylinder body 5. The inner wall of the sleeve 56 is provided with an annular inclined surface 57, and the inclined surface 57 is used to push the pressing plates 55 to close together. The sleeve 56 can be connected to the cylinder body 5 by a flange connection, and can also be installed on the cylinder body 5 by a threaded connection. In the embodiment of the present application, the outer peripheral wall of the cylinder body 5 is provided with an external thread, and the inner wall of the sleeve 56 is provided with an internal thread. The sleeve 56 can be threadedly connected to the cylinder body 5, so that the sleeve 56 can be detachably installed on the cylinder body 5.

[0042] When installing the sealing cylinder 52 and the collar 53, the operator first sets the sealing cylinder 52 on the wire harness 21, and moves the sealing cylinder 52 so that one end of the sealing cylinder 52 is inserted into the installation groove 51, and then the operator sets the collar 53 on the wire harness 21, and the pressing piece 55 on the collar 53 is set in the direction away from the shell body 11. By moving the collar 53, the collar 53 and the convex ring 54 are both set on the sealing cylinder 52, and the collar 53 is partially inserted into the installation groove 51. At this time, the opposite surfaces of each pressing piece 55 are all in contact with the end surface of the sealing cylinder 52. The operator sets the sleeve 56 on the wire harness 21 and moves the sleeve 56 toward the barrel 5. Under the pushing action of the inclined surface 57 on each inclined surface 57, a plurality of pressing pieces 55 are closed together, and the pressing pieces 55 are closed and pressed tightly against the sealing cylinder 52, so that the sealing cylinder 52 is in contact with the outer wall of the wire harness 21. The operator screws the sleeve 56 so that the sleeve 56 is threadedly connected to the barrel 5. During this process, as the sleeve 56 continues to move toward the shell body 11, one end of the sealing cylinder 52 is pressed against the bottom wall of the mounting groove 51 close to the shell body 11, thereby achieving a sealing effect of the sealing cylinder 52 between the barrel 5 and the wiring harness 21.

[0043] The implementation principle of the embodiment of the present application is as follows: the housing 1 of the detector can be detachably mounted outside the battery pack, and the detection circuit module 2 in the housing 1 detects the gas and temperature status in the battery pack through the through hole 16, thereby monitoring whether there is a fire in the battery pack. The housing 1 of the detector can be detachably mounted outside the battery pack, which facilitates the operator to regularly inspect or replace the detector. The operator does not need to open the battery pack to install and disassemble the detector, which simplifies the operation process and is conducive to improving the operator's work efficiency during the inspection or replacement of the detector.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A composite detector, characterized in that: The invention comprises a shell (1), wherein a detection circuit module (2) for detecting gas and temperature is arranged inside the shell (1), a detection head (15) is arranged on the shell (1), and a through hole (16) communicating with the interior of the shell (1) is arranged on the detection head (15), and the shell (1) can be detachably arranged outside a battery pack, and the shell (1) can be communicated with the interior of the battery pack through the through hole (16).

2. A composite detector according to claim 1, characterized in that: The housing (1) comprises a housing body (11) and a housing cover (12); the through hole (16) is located on the housing cover (12); the housing cover (12) is detachably mounted on the housing body (11); and a mounting cavity (14) for accommodating the detection circuit module (2) is formed between the housing cover (12) and the housing (1); a wiring harness (21) connected to the circuit module (2) passes through the housing body (11) and extends out of the housing body (11).

3. A composite detector according to claim 2, characterized in that: A first sealing member (3) for sealing a connection seam between the shell body (11) and the shell cover (12) is provided at one end of the shell body (11) facing the shell cover (12), and a second sealing member (31) for sealing a gap between the shell body (11) and the battery pack is provided on the shell cover (12).

4. A composite detector according to claim 2, characterized in that: The shell body (11) is provided with a cylinder (5) for the wire harness (21) to pass through, and the wire harness (21) is sleeved with a sealing cylinder (52) for sealing a gap between the wire harness (21) and the inner wall of the cylinder (5).

5. A composite detector according to claim 4, characterized in that: A mounting groove (51) capable of accommodating a sealing cylinder (52) is provided on the inner wall of the end of the cylinder (5) facing away from the shell body (11). The sealing cylinder (52) is partially located in the mounting groove (51). A sleeve (53) is provided on the outer sleeve of the sealing cylinder (52). The sleeve (53) is partially inserted into the cylinder (5). One end of the sleeve (53) extends out of the mounting groove (51) and is fixedly connected to a convex ring (54). The outer diameter of the convex ring (54) is larger than the inner diameter of the cylinder (5). A plurality of pressing plates (55) are fixedly connected to the convex ring (54). The pressing plates (55) can be pressed against the outer wall of the sealing cylinder (52). A sleeve (56) is provided on the wiring harness (21). An inclined surface (57) for pushing the pressing plates to close together is provided on the inner wall of the sleeve (56). The sleeve (56) is detachably arranged on the cylinder (5).

6. A composite detector according to any one of claims 2 to 5, characterized in that: A circle of stepped grooves (13) for mounting the detection circuit module (2) is provided on the inner wall of the shell body (11), and a limiting component (4) for limiting the detection circuit module (2) in the stepped groove (13) is provided in the shell body (11).

7. A composite detector according to claim 6, characterized in that: The limiting assembly (4) comprises a bolt (41), wherein the bolt (41) passes through the detection circuit module (2) and is threadedly connected to the inner wall of the shell body (11).

8. A composite detector according to claim 7, characterized in that: A gasket (43) and a spring washer (42) are sleeved on the bolt (41); the bolt (41) presses the spring washer (42) onto the gasket (43); and the gasket (43) is pressed against the detection circuit module (2).

9. A composite detector according to any one of claims 2 to 4, characterized in that: The shell cover (12) is detachably provided with a filter screen (32), and the filter screen (32) covers the through hole (16).

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