Protection device of BMS test circuit board and BMS test circuit board assembly

Abstract

The utility model describes a protection device of a BMS test circuit board and a BMS test circuit board assembly, the protection device of the BMS test circuit board comprises a housing, the housing is internally provided with an accommodating space used for accommodating the BMS test circuit board, two opposite sides of the housing are respectively provided with an opening and a through hole, and the through hole is used for accommodating the BMS test circuit board. The through holes are used for exposing part of elements of the BMS test circuit board; and the cover plate is connected to the shell, the cover plate is used for covering the opening, and the cover plate is a transparent cover plate or a semitransparent cover plate. Therefore, the BMS test circuit board can be conveniently connected with external equipment through the connecting wire harness by the through hole, and a heat dissipation channel can be provided. In addition, the cover plate is a transparent cover plate or a semitransparent cover plate, so that a worker can conveniently observe the operation state of the BMS test circuit board. Therefore, the protection device of the BMS test circuit board can not only protect the BMS test circuit board, but also meet the requirements of circuit testing.

Description

Technical Field

[0001] The utility model relates to the technical field of BMS test circuit board protection, in particular to a BMS test circuit board protection device and a BMS test circuit board assembly. Background Art

[0002] A BMS circuit board, or battery management system circuit board, is primarily used to monitor and manage key battery parameters such as the battery's charge and discharge status, temperature, and voltage. To prevent damage to the BMS circuit board from external objects, existing BMS circuit boards are typically protected by a protective case. However, BMS test circuit boards used for testing typically have additional input / output interfaces and built-in testing functions such as fault diagnosis and simulated faults. Currently, BMS test circuit boards are typically wrapped in dust bags on production lines, but these bags are still briefly removed from the protective case when being removed, rendering them less well protected. Utility Model Content

[0003] In view of the above existing situation, the present invention provides a BMS test circuit board protection device and a BMS test circuit board assembly, which can protect the BMS test circuit board and adapt to the needs of circuit testing.

[0004] In order to achieve the above-mentioned objectives, in a first aspect, the present invention provides a protection device for a BMS test circuit board, comprising: a shell, wherein an accommodating space is provided in the shell for accommodating the BMS test circuit board, and openings and through holes are respectively provided on opposite sides of the shell, and the through holes are used to expose some components of the BMS test circuit board; the shell comprises a first shell and a second shell, the first shell and the second shell are detachably connected, and the cover is connected to the side of the first shell facing away from the second shell.

[0005] Optionally, the shell includes a first shell and a second shell, the first shell and the second shell are detachably connected, and the cover is connected to a side of the first shell facing away from the second shell.

[0006] Optionally, at least one of the first shell and the second shell is used to be screwed to the BMS test circuit board; and / or, the first shell is screwed to the second shell.

[0007] Optionally, the cover is slidably connected to the shell.

[0008] Optionally, the cover is provided with a first positioning member, and the shell is provided with a second positioning member. When the cover slides to cover the opening, the first positioning member and the second positioning member cooperate with each other to limit the sliding of the cover.

[0009] Optionally, the first positioning member is a protrusion provided on the cover plate, and the second positioning member is a groove provided on the shell; or the first positioning member is a groove provided on the cover plate, and the second positioning member is a protrusion provided on the shell.

[0010] Optionally, the first positioning member is a protrusion provided on the cover plate, and the second positioning member is a groove provided on the shell; when the cover plate is slid to expose the opening, the cover plate comprises a terminal area away from the shell, and the protrusion is located on the terminal area.

[0011] Optionally, one end of the cover plate is rotationally connected to the shell, and the other end of the cover plate is limitingly connected to the shell.

[0012] Optionally, the cover plate is detachably connected to the shell.

[0013] In a second aspect, the utility model provides a BMS test circuit board assembly, it includes: the protection device of BMS test circuit board as described above;BMS test circuit board, BMS test circuit board is installed in the accommodation space of the protection device of BMS test circuit board.

[0014] In the utility model relates to the protection device of BMS test circuit board includes shell and cover plate, wherein, the accommodation space for accommodating BMS test circuit board is equipped with in shell, and the opening and through -hole are equipped with in the opposite side of shell respectively, and the part element of BMS test circuit board is exposed in through -hole, so, this through -hole can be convenient for BMS test circuit board to pass through the connecting wire bundle to connect with external equipment, and can provide heat dissipation channel for the part element of BMS test circuit board.In addition, the cover plate is transparent cover plate or translucent cover plate, can conveniently observe the running state of BMS test circuit board for staff, improved the efficiency of monitoring and fault diagnosis. Thus, the protection device of BMS test circuit board involved in the utility model not only can protect BMS test circuit board, but also can adapt to the demand of circuit test. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0017] Figure 1 Schematic diagram showing the overall structure of the BMS test circuit board assembly involved in this application.

[0018] Figure 2 FIG. 1 is an exploded view showing a BMS test circuit board assembly involved in the present application.

[0019] Figure 3 1 is a schematic diagram showing the overall structure of the protection device for the BMS test circuit board involved in this application.

[0020] Figure 4 2 is another overall structural diagram showing the BMS test circuit board assembly involved in the present application.

[0021] Figure 5 It shows Figure 4 Enlarged schematic diagram of point A in the middle.

[0022] Figure 6 It is a cross-sectional view showing the cooperation between the protrusion and the groove involved in the present application.

[0023] Figure 7 1 is a schematic diagram showing the overall structure of a BMS test circuit board assembly according to another embodiment of the present application.

[0024] Figure 8 1 is a schematic diagram showing the overall structure of a BMS test circuit board assembly according to another embodiment of the present application.

[0025] Figure numerals: 100, BMS test circuit board; 101, resistor; 102, coil; 103, interface; 1, shell; 11, through hole; 12, first shell; 13, second shell; 14, slide groove; 2, cover; 21, first positioning member; 22, second positioning member; 23, slider; 3, hinge; 4, buckle; 5, screw; 6, handle. DETAILED DESCRIPTION

[0026] Below, with reference to the accompanying drawings, the preferred embodiments of the present application are described in detail. In the following description, the same symbols are given to the same components, and repeated descriptions are omitted. In addition, the accompanying drawings are only schematic diagrams, and the ratio of the dimensions of the components to each other or the shapes of the components may be different from the actual ones. It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0028] Reference Figures 1 to 4 The present application provides a protective device for a BMS test circuit board, comprising a housing 1 and a cover 2. The housing 1 has a space therein for accommodating the BMS test circuit board, and has an opening and a through-hole 11 on opposite sides thereof. The through-hole 11 is used to expose some components of the BMS test circuit board. The cover 2 is connected to the housing 1 and is used to cover the opening. The cover 2 is a transparent cover 2 or a translucent cover 2.

[0029] According to the above structure, the through-holes 11 provided in the BMS test circuit board protection device facilitate connection of the BMS test circuit board 100 to external devices via a wiring harness and provide a heat dissipation channel for some components of the BMS test circuit board 100. Furthermore, the cover plate 2 is a transparent or translucent cover plate 2, which facilitates observation of the operating status of the BMS test circuit board 100, improving the efficiency of monitoring and fault diagnosis. Thus, the BMS test circuit board protection device of the present invention not only protects the BMS test circuit board 100 but also meets the needs of circuit testing.

[0030] It should be noted that, referring to Figure 1 and Figure 2 , one side of the BMS test circuit board 100 is usually provided with components that need heat dissipation, such as resistors 101, coils 102, and interfaces 103 that need to be connected to wiring harnesses, such as communication interfaces, sensor interfaces for collecting temperature or pressure, etc. Specifically, in the present application, the position of the through hole 11 can correspond to the above-mentioned components that need heat dissipation and interfaces 103. Thus, the components that need heat dissipation can be exposed through the shell 1, so that the heat is dissipated to the outside of the shell 1, thereby keeping the components within a safe operating temperature range. In addition, the interface 103 for connecting the wiring harness can also be exposed through the through hole 11 to the shell 1, so that it is convenient for the staff to plug in the wiring harness and the operation is more convenient. Figure 4The other side of the BMS test circuit board 100 is usually provided with display elements such as indicator lights. These indicator lights allow the staff to intuitively observe the working status of the BMS test circuit board 100. For example, through the indicator lights, the staff can determine whether the circuit board is powered on and whether the wiring harness interface is correctly connected. The present application provides a transparent or translucent cover plate 2, which makes it easier for the staff to observe the indicator lights and improves the monitoring efficiency. It is understandable that if the BMS test circuit board 100 has an abnormal state such as smoke or sparks, the transparent or translucent cover plate 2 also makes it easier for the staff to discover it in time, so that they can take appropriate measures to prevent the accident from further escalating.

[0031] In some examples, the cover plate 2 can be made of materials such as acrylic, polycarbonate, or polystyrene, all of which have high transparency and good mechanical strength.

[0032] In some examples, the cover plate 2 can be detachably connected to the housing 1 , and after the BMS test circuit board 100 is installed in the housing 1 , the cover plate 2 is connected to the housing 1 .

[0033] Reference Figures 1 to 3 In some embodiments, the housing 1 includes a first housing 12 and a second housing 13. The first housing 12 and the second housing 13 are detachably connected, and the cover 2 is connected to the side of the first housing 12 facing away from the second housing 13. Therefore, when the BMS test circuit board 100 needs to be repaired or replaced, the staff can detach the first housing 12 and the second housing 13 to remove the BMS test circuit board 100. It is understood that the accommodating space can be provided in the first housing 12 or the second housing 13, or the first housing 12 and the second housing 13 can be connected to form the accommodating space.

[0034] In some embodiments, at least one of the first shell 12 and the second shell 13 is used to be screwed to the BMS test circuit board 100. As a result, the screw connection can make the connection between the BMS test circuit board 100 and the first shell 12 or the second shell 13 more secure, providing stable support and fixation. Among them, the screw connection is usually achieved by screws, bolts or other threaded connectors. This connection method has good fastening performance and can ensure the stability of the connection between the BMS test circuit board 100 and the first shell 12 or the second shell 13. In addition, the screw connection method is relatively simple, which can facilitate disassembly by the staff and improve the efficiency of installation or disassembly. Specifically, the BMS test circuit board 100 can be screwed to the first shell 12, the BMS test circuit board 100 can also be screwed to the second shell 13, and the BMS test circuit board 100 can also be screwed to the first shell 12 and the second shell 13 at the same time to further improve the stability of the connection.

[0035] In some embodiments, the first housing 12 is screwed to the second housing 13. Thus, the screw connection can have good fastening performance and thereby ensure the stability of the connection between the first housing 12 and the second housing 13. In addition, the screw connection is simple, which can facilitate disassembly by workers and improve the efficiency of installation or disassembly.

[0036] Reference Figure 3 and Figure 4 In some embodiments, the cover plate 2 is slidably connected to the housing 1. In related art, some switch buttons are provided on the side of the BMS test circuit board 100 facing the cover plate 2, such as a switch button for controlling the connection or disconnection between the communication interface and the communication harness connected to the external device. As a result, the sliding connection between the cover plate 2 and the housing 1 is easy to operate, and can facilitate the staff to open or close the opening of the housing 1, and facilitate the operation of the switch buttons and other components of the BMS test circuit board 100. Normally, the cover plate 2 can be closed when no operation is required to prevent accidental damage to the BMS circuit board by external objects. In addition, after closing, it can also achieve a certain degree of dustproof effect.

[0037] Reference Figures 4 to 6 As an embodiment, the cover plate 2 is provided with a first positioning member 21, and the housing 1 is provided with a second positioning member 22. When the cover plate 2 slides to cover the opening, the first positioning member 21 and the second positioning member 22 cooperate with each other to restrict the sliding of the cover plate 2. Thus, the cooperation between the first positioning member 21 and the second positioning member 22 can constrain the cover plate 2 to always cover the opening, preventing the cover plate 2 from accidentally sliding open. Furthermore, after the cover plate 2 covers the opening, restricting its sliding can help improve the sealing performance of the protective device for the BMS test circuit board, reducing the ingress of foreign matter such as dust and moisture into the housing 1.

[0038] Reference Figures 4 to 6 In some embodiments, the first positioning member 21 is a protrusion protruding from the cover plate 2, and the second positioning member 22 is a groove provided in the housing 1. Specifically, when the sliding cover plate 2 slides to cover the opening, the protrusion can enter the groove. Thus, the cooperation between the protrusion and the groove can limit the further sliding of the cover plate 2, so that the cover plate 2 remains in a state of covering the opening.

[0039] It is understandable that the convex portion has a certain elasticity and can produce a certain deformation during the process of being squeezed by the shell 1, which will not significantly affect the sliding of the cover plate 2. Figure 6 When the sliding cover 2 slides to cover the opening, the protrusion enters the groove and returns to its original shape, becoming stuck in the groove, thereby restricting the sliding of the cover 2. In some examples, the protrusion can be integrally formed with the cover 2. The cover 2 can be made of plastic, which has a certain degree of elasticity and can deform to a certain extent under the action of external forces.

[0040] In other embodiments, the first positioning member 21 may also be provided in a groove of the cover plate 2 , and the second positioning member 22 may be a protrusion provided on the housing 1 .

[0041] Reference Figure 4 and Figure 5 In some examples, the inner wall of the housing 1 is provided with a slide groove 14, and the cover plate 2 is provided with a slider 23 that cooperates with the slide groove 14. Specifically, the protrusion can be provided on the slider 23, and the groove can be provided on the inner wall of the slide groove 14.

[0042] Reference Figure 6 In some examples, the convex portion has a hemispherical structure. Specifically, when the cover plate 2 slides and the convex portion contacts and squeezes the housing 1, the hemispherical convex portion can reduce the contact area between the convex portion and the housing 1, thereby reducing the resistance to the sliding of the cover plate 2. Furthermore, when the hemispherical convex portion enters the groove from the squeezed state, the curved surface structure of the hemispherical convex portion makes it easier to enter the groove.

[0043] In some examples, the height of the protrusion from the cover plate 2 may be 0.5 mm. Thus, the protrusion of the protrusion is small and does not significantly affect the sliding of the cover plate 2.

[0044] Reference Figure 3 and Figure 6 In some examples, when the cover plate 2 slides to expose the opening, a handle 6 is provided on the end of the cover plate 2 facing away from the housing 1. The handle 6 can protrude from the cover plate 2. Specifically, a worker can hold the handle 6 to pull the cover plate 2. Thus, the provision of the handle 6 enables the worker to operate the cover plate 2 more quickly and conveniently.

[0045] Reference Figures 4 to 6 In some embodiments, the first positioning member 21 is a convex portion protruding from the cover plate 2, and the second positioning member 22 is a groove provided in the shell 1; when the cover plate 2 slides to expose the opening, the cover plate 2 includes an end area away from the shell 1, and the convex portion is located in the end area. Thus, the convex portion is located in the end area, so that when the cover plate 2 just slides to expose only the opening, the convex portion can be away from the shell 1, and when the cover plate 2 continues to open, the convex portion will no longer contact the shell 1, and the operation will be smoother. Specifically, when the cover plate 2 slides toward the shell 1 to completely cover the opening, the convex portion will only contact the shell 1 when the cover plate 2 can slide to close to covering the opening, thereby minimizing the influence of the convex portion on the sliding of the cover plate 2. Refer to Figure 5The end region can be the side surface near the end of the cover plate 2. It is understood that the end region can be the area where the cover plate 2 is away from the housing 1 when the cover plate 2 has just slid to open the opening. For ease of description, the total area of ​​the opening parallel to the plane of the cover plate 2 is defined as S, and the area of ​​the opening exposed when the cover plate 2 is pulled open is defined as S1. When S1 / S is 1 / 50, the area of ​​the cover plate 2 away from the housing 1 is the end region. In specific applications, S1 / S can be set to a range of 1 / 50 to 1 / 10 as needed.

[0046] In some embodiments, one end of the cover plate 2 is rotatably connected to the housing 1, and the other end of the cover plate 2 is limitedly connected to the housing 1. As a result, the cover plate 2 can be opened and closed around the rotation connection point, making it convenient for staff to operate the cover plate 2. The other end of the cover plate 2 is limitedly connected to the housing 1, so that after the cover plate 2 is closed, it can be ensured that the cover plate 2 always covers the opening and will not be accidentally opened. For details, refer to Figure 7 One end of the cover plate 2 and the housing 1 can be rotatably connected by a hinge 3, and one end of the cover plate 2 can be limitedly connected to the housing 1 by a buckle 4. In some examples, the cover plate 2 and the housing 1 can be rotatably connected by a shaft, and the other end of the cover plate 2 can be magnetically connected to the housing 1.

[0047] In some embodiments, the cover plate 2 is detachably connected to the housing 1. Figure 8 In some examples, the cover plate 2 can be connected to the housing 1 by screws 5. In other examples, the cover plate 2 can be snap-fitted to the housing 1.

[0048] In some examples, the thickness of the cover plate 2 can be 10 mm. Thus, the cover plate 2 is relatively thin, and as a transparent cover plate 2, this thickness can provide good clarity.

[0049] The present application also provides a BMS test circuit board assembly, which includes the above-mentioned BMS test circuit board protection device and a BMS test circuit board 100 , wherein the BMS test circuit board 100 is installed in the accommodation space of the BMS test circuit board protection device.

[0050] In summary, the through-holes 11 provided in the BMS test circuit board protection device facilitate connection of the BMS test circuit board 100 to external devices via a wiring harness and provide a heat dissipation channel for some components of the BMS test circuit board 100. Furthermore, the cover plate 2 is a transparent or translucent cover plate 2, which facilitates observation of the operating status of the BMS test circuit board 100, improving the efficiency of monitoring and fault diagnosis. Thus, the BMS test circuit board protection device of the present invention not only protects the BMS test circuit board 100 but also meets the needs of circuit testing.

[0051] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0052] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0054] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

[0055] Although the present invention has been described in detail above with reference to the accompanying drawings and embodiments, it should be understood that the above description does not limit the present invention in any form. Those skilled in the art may modify and alter the present invention as needed without departing from the spirit and scope of the present invention, and such modifications and alterations are intended to fall within the scope of the present invention.

Claims

1. A protection device for a BMS test circuit board, characterized in that: include: A housing having a housing space therein for accommodating a BMS test circuit board, and having an opening and a through hole on opposite sides of the housing, respectively, wherein the through hole is used to expose some components of the BMS test circuit board; A cover plate is connected to the shell and is used to cover the opening. The cover plate is a transparent cover plate or a semi-transparent cover plate.

2. The protection device for the BMS test circuit board according to claim 1, characterized in that: The shell includes a first shell and a second shell. The first shell is detachably connected to the second shell, and the cover is connected to a side of the first shell facing away from the second shell.

3. The protection device for the BMS test circuit board according to claim 2, characterized in that: At least one of the first housing and the second housing is used to be screwed to the BMS test circuit board; and / or, The first shell is screwed to the second shell.

4. The protection device for a BMS test circuit board according to any one of claims 1 to 3, characterized in that: The cover plate is slidably connected to the shell.

5. The protection device for the BMS test circuit board according to claim 4, characterized in that: The cover plate is provided with a first positioning member, and the shell is provided with a second positioning member. When the cover plate slides to cover the opening, the first positioning member and the second positioning member cooperate with each other to limit the sliding of the cover plate.

6. The protection device for the BMS test circuit board according to claim 5, characterized in that: The first positioning member is a convex portion provided on the cover plate, and the second positioning member is a groove provided on the housing; or The first positioning member is a groove formed on the cover plate, and the second positioning member is a convex portion formed on the housing.

7. The protection device for the BMS test circuit board according to claim 5, characterized in that: The first positioning member is a convex portion protruding from the cover plate, and the second positioning member is a groove formed in the housing; When the cover plate slides until the opening is exposed, the cover plate includes an end region away from the housing, and the protrusion is located in the end region.

8. The protection device for a BMS test circuit board according to any one of claims 1 to 3, characterized in that: One end of the cover plate is rotatably connected to the shell, and the other end of the cover plate is position-limitingly connected to the shell.

9. The protection device for a BMS test circuit board according to any one of claims 1 to 3, characterized in that: The cover plate is detachably connected to the shell.

10. A BMS test circuit board assembly, characterized in that: include: The protection device for a BMS test circuit board according to any one of claims 1 to 9; A BMS test circuit board is installed in the accommodation space of the BMS test circuit board protection device.

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