Current sensor protection device and PACK package

Abstract

The utility model relates to a current sensor protection device and a PACK bag, and belongs to the technical field of current sensors, the current sensor protection device comprises a housing, the housing is made of an insulating material, the housing is provided with a placing groove, a current sensor is installed in the placing groove, the housing is of a polygonal structure, and the side wall of the housing is used as a functional area; the current sensor is prevented from being interfered by external environmental factors, tensile deformation of the current sensor and electromagnetic interference of other electrical elements are avoided when external mechanical impact and stress act, the current sensor is effectively protected, the performance of the current sensor is ensured, and the service life of the current sensor is prolonged. Therefore, the problems that the current sensor is affected by electromagnetic interference and a conventional exposed fixing mode is not protected and fails are well solved, the current sensor can stably and normally monitor current information for a long time, and the effect of improving the performance and safety of the battery pack is achieved from the side.

Description

Technical Field

[0001] This utility model relates to the technical field of current sensors, and in particular to a current sensor protection device and PACK package. Background Technology

[0002] With the rapid development of the new energy industry, new energy vehicles have become a key area of ​​research and application. Among the core components of new energy vehicles, the PACK pack plays an important role. It contains not only battery cells, but also key electrical components such as fuses, relays, and current sensors. As an indispensable core component in the PACK pack, the main function of the current sensor is to monitor current information in real time and convert it into electrical signals or other forms of information to meet the needs of data transmission, processing, storage, display, recording and control, and to ensure battery performance and safety.

[0003] In the prior art, current sensors are usually installed in an exposed state inside a PACK package, and are surrounded by other electrical components, making them susceptible to interference from external environmental factors. Under mechanical shock or stress, current sensors may be stretched and deformed, resulting in unstable output signals. In addition, when electrical components near the current sensor generate electromagnetic interference, it may cause sudden changes or distortion in the signal.

[0004] Therefore, there is an urgent need to design a current sensor protection device to protect the current sensor in the PACK package, avoid interference from the external environment, and avoid electromagnetic interference from other electrical components. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a current sensor protection device and PACK package to solve the technical problem that current sensors are easily affected by external environmental interference and electromagnetic interference from other electrical components in the prior art.

[0006] This utility model provides a current sensor protection device, including a housing, wherein the housing is made of insulating material, and a placement groove is provided on the housing, and the current sensor is installed in the placement groove;

[0007] The shell has a polygonal structure, and the side walls of the shell are used as functional areas.

[0008] Optionally, the housing is provided with a plurality of heat dissipation holes, which are connected to the interior of the placement slot.

[0009] Optionally, the housing is provided with a support member located in the placement groove. When the current sensor is placed in the placement groove, the support member is located between the two protruding ears of the current sensor and abuts against the current sensor.

[0010] Optionally, a fixing member is provided in the placement slot, and the current sensor is detachably connected to the housing through the fixing member.

[0011] Optionally, the fastener includes a mounting hole and a bolt on the housing. A nut is fixed in the mounting hole, and the bolt is sequentially inserted into the current sensor and the mounting hole and threadedly connected to the nut.

[0012] Optionally, a boss is provided around the mounting hole, the boss is annular, and the inner annular surface of the boss forms the mounting hole;

[0013] The boss is connected to the housing and extends into the placement slot. When the current sensor is placed in the placement slot, the platform of the boss abuts against the current sensor.

[0014] Optionally, the housing has at least one clearance hole, which communicates with the interior of the placement slot, and the current sensor is connected to the electrical components through the clearance hole.

[0015] Optionally, the housing has a copper busbar hole, which is connected to the interior of the placement slot. The copper busbar extends from the copper busbar hole into the placement slot and connects to the current sensor.

[0016] Optionally, the housing is provided with at least one reinforcing rib, which is located within the placement groove.

[0017] This utility model also provides a PACK package, including the current sensor protection device, and further including a current sensor, wherein the current sensor is installed in the placement slot of the housing and the current sensor does not protrude from the opening of the placement slot.

[0018] The technical solution of this utility model has the following advantages:

[0019] 1. The current sensor protection device provided by this utility model, by setting a placement slot, allows the current sensor to be installed in the placement slot, so that the housing surrounds the current sensor, thereby avoiding interference from external environmental factors. When there is mechanical impact or stress from the outside, the current sensor is prevented from being stretched and deformed because the housing surrounds the current sensor. At the same time, the housing is made of insulating material, and when the current sensor is placed in the placement slot, it can also avoid electromagnetic interference from other electrical components, effectively protecting the current sensor and ensuring its performance. This effectively solves the problems of electromagnetic interference to current sensors and failure due to unprotected conventional exposed fixing, enabling the current sensor to monitor current information stably and normally for a long time, thereby improving the performance and safety of the battery pack.

[0020] 2. The current sensor protection device provided by this utility model dissipates the heat generated by the current sensor when it is working in the placement slot by setting multiple heat dissipation holes, thereby preventing the current sensor from degrading due to excessive temperature. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the current sensor protection device of this utility model;

[0023] Figure 2 This is a schematic diagram of the shell structure in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 2. Placement slot; 3. Heat dissipation hole; 4. Support component; 5. Fixing component; 51. Mounting hole; 52. Nut component; 53. Bolt component; 6. Boss; 7. Clearance hole; 8. Copper busbar hole; 9. Reinforcing rib; 10. Weight reduction hole; 11. Connection hole; 12. Current sensor; 13. Protruding ear. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0027] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0028] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0030] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 As shown, this utility model provides a current sensor protection device, including a housing 1. The shape of the housing 1 is adapted to the current sensor 12. The housing 1 is set as a hexagon. The housing 1 is made of insulating material and has a placement groove 2. The size of the placement groove 2 is adapted to the current sensor 12, so that the current sensor 12 can be installed in the placement groove 2 without protruding from the groove opening of the placement groove 2.

[0033] By setting up the placement slot 2, the current sensor 12 can be installed inside the placement slot 2, so that the housing 1 surrounds the current sensor 12. This can prevent the current sensor 12 from being interfered with by external environmental factors. When there is mechanical impact or stress from the outside, the current sensor 12 is prevented from being stretched and deformed because the housing 1 surrounds the current sensor 12. At the same time, the housing 1 is made of insulating material. When the current sensor 12 is placed in the placement slot 2, the current sensor 12 can also avoid electromagnetic interference from other electrical components, effectively protecting the current sensor 12 and ensuring its performance. This solves the problems of electromagnetic interference and failure due to unprotected conventional exposed fixing of the current sensor 12. It enables the current sensor 12 to monitor and detect current information stably and normally for a long time, thereby improving the performance and safety of the battery pack.

[0034] As a specific implementation method, the shell 1 is made of PA66 material, which has excellent mechanical properties, strong thermal stability, heat resistance temperature of up to 150 degrees Celsius, strong electrical insulation and current resistance, and is easy to recycle without secondary pollution.

[0035] The housing has a polygonal structure, and the side walls of the housing are used as functional areas. Specifically, the side is used to set heat dissipation holes 3, clearance holes 7, copper busbar holes 8, weight reduction holes 10, and connection holes 11 to integrate functions and improve the functionality of this protective device.

[0036] Of course, its integrated structure is not limited to the above structure, and can be adapted to be expanded according to application needs.

[0037] The shell 1 is provided with at least one reinforcing rib 9, which is located on the bottom wall of the placement groove 2. The reinforcing rib 9 has two horizontal and two vertical ribs, and the horizontal and vertical reinforcing ribs 9 are arranged in a cross pattern to improve the structural strength of the shell 1.

[0038] Reference Figure 1 and Figure 2 As shown, in order to enable the current sensor 12 to be installed in the placement slot 2 of the housing 1, a fixing member 5 is provided in the placement slot 2. The current sensor 12 is detachably connected to the housing 1 through the fixing member 5. The fixing member 5 makes it easy to install the current sensor 12, and also makes it easy to disassemble and replace the housing 1 or the current sensor 12 individually.

[0039] Specifically, the fixing component 5 includes a mounting hole 51 opened on the housing 1. The mounting hole 51 is set on the bottom wall of the placement groove 2. A nut component 52 is fixedly connected in the mounting hole 51, and a bolt component 53 is also provided. When the current sensor 12 is placed in the placement groove 2, the bolt component 53 is taken out. The end of the bolt component 53 facing away from its nut is first inserted into the current sensor 12, and then inserted into the nut component 52. The bolt component 53 is rotated, so that the bolt component 53 and the nut component 52 are threadedly connected. The bolt component 53 is continuously rotated until it is tightened, and the current sensor 12 is detachably connected in the placement groove 2.

[0040] Furthermore, two sets of mounting holes 51, bolts 53, and nuts 52 are provided. When the current sensor 12 is placed in the placement groove 2, the two sets of mounting holes 51 are located on the left and right sides of the current sensor 12, respectively, confining the current sensor 12 between them. Both sets of bolts 53 are inserted into the current sensor 12 and threadedly connected to the nuts 52 until tightened, thus fixing the current sensor 12. By providing two sets of mounting holes 51, bolts 53, and nuts 52, the installation of the current sensor 12 is more stable, preventing the current sensor 12 from rotating along the axial direction of the bolts 53, thus improving the fixing effect. The form of the fixing component 5 is not limited to the detachable connection method of nuts and bolts; other structures can also be used for fixing. There is no single limitation, as long as the current sensor 12 can be connected to the placement groove 2 of the housing 1.

[0041] As another implementation method, refer to Figure 2 As shown, a boss 6 is provided around the mounting hole 51. The boss 6 is annular, and the inner annular surface of the boss 6 forms the mounting hole 51. The boss 6 is located deep in the groove of the placement groove 2 and is integrally formed with the housing 1. The boss 6 extends towards the opening of the placement groove 2. When the current sensor 12 is placed in the placement groove 2, the platform of the boss 6 abuts against the side wall of the current sensor 12, thereby enhancing the strength of the overall structure and reducing the risk of damage. At the same time, the exposed part of the bolt 53 is small, which can reduce the risk of electrical breakdown.

[0042] As another implementation method, refer to Figure 1 As shown, the housing 1 has multiple heat dissipation holes 3. The heat dissipation holes 3 are located on the side wall of the placement slot 2, and the heat dissipation holes 3 are connected to the outside of the housing 1 and the inside of the placement slot 2 respectively. When the current sensor 12 is installed in the placement slot 2 for operation, the heat generated by the current sensor 12 can be dissipated from the placement slot 2 through the heat dissipation holes 3, avoiding the accumulation of heat in the placement slot 2 and affecting the performance of the current sensor 12. Regarding the setting position of the heat dissipation holes 3, they are set near the heat-generating position of the current sensor 12 to make the heat dissipation effect better.

[0043] Furthermore, in order to enable the current sensor 12 to be installed in the placement slot 2 without affecting the normal operation of the current sensor 12 and its connection with the external structure, at least one clearance hole 7 is provided on the housing 1. The clearance hole 7 is located on the side wall of the placement slot 2 and is connected to the interior of the placement slot 2 and the exterior space of the housing 1 respectively. The current sensor 12 can then be connected to other electrical components outside the housing 1 through the clearance hole 7.

[0044] The housing 1 is also provided with copper busbar holes 8, which are located at the bottom of the placement slot 2. The copper busbar holes 8 are connected to the interior of the placement slot 2 and the exterior of the housing 1. The copper busbars in the PACK can extend into the placement slot 2 through the copper busbar holes 8 and connect to the current sensor 12.

[0045] As another implementation method, refer to Figure 2 As shown, a support member 4 is provided on the housing 1. In this embodiment, the support member 4 is set as a support platform. The support member 4 is set on the side wall of the placement slot 2. When the current sensor 12 is placed in the placement slot 2, the support member 4 is located between the two protruding ears 13 of the current sensor 12, and the support member 4 extends towards the current sensor 12 until it abuts against the outer wall between the two protruding ears 13 of the current sensor 12, thus locking the support member 4 between the two protruding ears 13, restricting the movement of the current sensor 12, and improving the stability of the installation.

[0046] The support member 4 has a weight reduction hole 10, which can further reduce weight and cost.

[0047] In addition, at least two connection holes 11 are provided on the housing 1, through which the housing 1 can be bolted to the PACK package.

[0048] Example 2

[0049] Reference Figures 1-2 As shown, this embodiment provides a PACK package, including the protective device for the current sensor 12 in Embodiment 1, and also including the current sensor 12. The current sensor 12 is installed in the placement slot 2 of the housing 1 and does not protrude from the opening of the placement slot 2. The current sensor 12 includes two protruding ears 13 with a gap between them. By setting the protective device for the current sensor 12, the current sensor 12 is protected, thereby avoiding interference from external environmental factors. When there is mechanical impact or stress from the outside, the current sensor 12 is protected from tensile deformation because the housing 1 surrounds it. At the same time, the housing 1 is made of insulating material. When the current sensor 12 is placed in the placement slot 2, the current sensor 12 can also avoid electromagnetic interference from other electrical components, effectively protecting the current sensor 12 and ensuring its performance. This solves the problems of electromagnetic interference and failure due to unprotected conventional exposed fixing of the current sensor 12, enabling the current sensor 12 to monitor and detect current information stably and normally for a long time, thereby improving the performance and safety of the battery pack.

[0050] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0051] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A current sensor guard, comprising: The utility model provides a current sensor protection device, including shell (1), wherein the shell (1) is made of insulating material, is set with the placing groove (2) on the shell (1), and the current sensor (12) is installed in the placing groove (2). The shell (1) is in polygonal structure, and the side wall of the shell (1) is used as a functional area.

2. The current sensor guard of claim 1, wherein, A plurality of heat dissipation holes (3) are formed in the shell (1), and the heat dissipation holes (3) are in communication with the inside of the placing groove (2).

3. The current sensor guard of claim 1, wherein, A support (4) is arranged on the shell (1), and the support (4) is located between the two protruding ears (13) of the current sensor (12) and is in contact with the current sensor (12) when the current sensor (12) is placed in the placing groove (2).

4. The current sensor guard of claim 1, wherein, A fixing member (5) is arranged in the placing groove (2), and the current sensor (12) is detachably connected to the shell (1) through the fixing member (5).

5. The current sensor guard of claim 4, wherein, The fixing member (5) comprises a mounting hole (51) formed in the shell (1) and a bolt member (53), the mounting hole (51) is fixed with a nut member (52), and the bolt member (53) is sequentially inserted into the current sensor (12) and the mounting hole (51) and is in threaded connection with the nut member (52).

6. The current sensor guard of claim 5, wherein, A boss (6) is arranged around the mounting hole (51), the boss (6) is annular, and the inner annular surface of the boss (6) forms the mounting hole (51). The boss (6) is connected to the shell (1) and extends to the slot opening of the placing groove (2), and the top surface of the boss (6) is in contact with the current sensor (12) when the current sensor (12) is placed in the placing groove (2).

7. The current sensor guard of claim 1, wherein, At least one avoiding hole (7) is formed in the shell (1), the avoiding hole (7) is in communication with the inside of the placing groove (2), and the current sensor (12) is connected to the electrical element through the avoiding hole (7).

8. The current sensor guard of claim 1, wherein, A copper bar hole (8) is formed in the shell (1), the copper bar hole (8) is in communication with the inside of the placing groove (2), and the copper bar is inserted into the placing groove (2) from the copper bar hole (8) and is connected to the current sensor (12).

9. The current sensor guard of claim 1, wherein, At least one reinforcing rib (9) is arranged on the shell (1), and the reinforcing rib (9) is located in the placing groove (2).

10. A PACK pack, characterized in that The utility model provides a current sensor protection device, further comprising a current sensor (12) installed in the placing groove (2) of the shell (1) and not protruding from the slot opening of the placing groove (2).

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