Insulation protection piece
By using the insulating plate and hook structure of the insulating protective part in the battery module to isolate the conductive bus from the connection end of the charging and discharging high-voltage component, the problem of conductive bus short circuit is solved, and stable electrical insulation and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202422490333.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In existing battery modules, the distance between the conductive bus connection terminals between the high-voltage charging and discharging components and the BDU is too close, resulting in a short circuit risk.
Insulating protective parts are used to isolate the conductive bus from the positive and negative connection terminals of the charging and discharging high-voltage components. Through the combined structure of the first and second insulating plates and the intermediate insulating plate, a hook structure is used to achieve a detachable connection, and stable insulation is ensured by positioning through holes and bolts.
It effectively prevents short circuits between conductive busbar terminals, provides stable electrical insulation protection, facilitates subsequent maintenance, and adapts to vibration environments.
Smart Images
Figure CN223390741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to an insulating protective piece. Background Art
[0002] In existing battery modules, the high-voltage charging and discharging components and the BDU are connected via a conductive busbar, with both ends bolted to the positive and negative terminals of the components. However, since the positive and negative terminals of the components are relatively close together, the two ends of the conductive busbar are also very close when connected to the components. This can lead to short circuits when current is transmitted due to the small distance between the two ends of the conductive busbar. Utility Model Content
[0003] The utility model provides an insulating protective member for isolating the conductive bar from the positive connection end of the charging and discharging high-voltage component and the conductive bar from the negative connection end of the charging and discharging high-voltage component to form electrical insulation. It has a simple structure and relatively sufficient protection, and is used to solve the above-mentioned technical problems.
[0004] The technical solution of the present invention to solve the above problems is: to provide an insulating protective member for isolating the conductive bar from the positive connection end of the charging and discharging high-voltage component and the conductive bar from the negative connection end of the charging and discharging high-voltage component to form electrical insulation, comprising a first insulating plate, a second insulating plate, and an intermediate insulating plate, wherein the intermediate insulating plate is arranged between the positive connection end and the negative connection end, and the first insulating plate and the second insulating plate are relatively arranged on both sides of the conductive bar and the positive and negative connection ends of the charging and discharging high-voltage component, the first insulating plate is fixedly connected to the intermediate insulating plate, and the first insulating plate is detachably connected to the second insulating plate.
[0005] Furthermore, it also includes a hooking structure for detachably connecting the first insulating plate and the second insulating plate; the hooking structure includes a hooking rod provided on the first insulating plate or the second insulating plate, and a hook block provided at the rod end of the hooking rod; the hooking structure hooks the second insulating plate or the first insulating plate on the opposite side through the hook block to connect the first insulating plate and the second insulating plate, and separates the first insulating plate and the second insulating plate by separating the hook block from the second insulating plate or the first insulating plate on the opposite side.
[0006] Furthermore, it also includes a hooking hole opened on the hooked second insulating plate or the first insulating plate; the hooking rod is inserted into the hooking hole, and the hook block at the other end of the hooking hole blocks and limits each other with the hooked second insulating plate or the first insulating plate, so as to hook and connect the first insulating plate and the second insulating plate.
[0007] Furthermore, the length of the hooking rod is equivalent to or less than the length of the intermediate insulating plate; when the first insulating plate and the second insulating plate are connected to each other, the intermediate insulating plate pushes the second insulating plate to press against the hook block to further improve the hooking stability between the first insulating plate and the second insulating plate.
[0008] Furthermore, it also includes an abutment groove provided on the second insulating plate and used for positioning the intermediate insulating plate.
[0009] Furthermore, the hooking rod is an elastic rod.
[0010] Furthermore, the hooking rod is tilted toward the center of the first insulating plate or the second insulating plate, and the hooking rod is elastically tilted toward the outside of the first insulating plate or the second insulating plate to align with the hooking hole.
[0011] Furthermore, the conductive bus and the charging and discharging high-voltage components are fixedly connected by bolts; two first positioning through holes are also provided on the first insulating plate, one of which is used for the end of the bolt at the positive connection end to extend therethrough, and the other first positioning through hole is used for the end of the bolt at the negative connection end to extend therethrough, so that the first insulating plate can be accurately installed on one side of the positive and negative connection ends of the conductive bus and the charging and discharging high-voltage components.
[0012] Furthermore, two second positioning through holes are provided on the second insulating plate, wherein one second positioning through hole is used for inserting the end of the bolt at the positive connection end, and the other second positioning through hole is used for inserting the end of the bolt at the negative connection end, so that the second insulating plate can be accurately installed on the other side of the positive and negative connection ends of the conductive bar and the charging and discharging high-voltage components.
[0013] Furthermore, it also includes an insulating cover respectively arranged at the first positioning through hole or the second positioning through hole, and the insulating cover is used to cover the first positioning through hole or the second positioning through hole to insulate and isolate the positive electrode connecting bolt from the external environment.
[0014] Beneficial effects of the utility model:
[0015] An insulating protective member of the present invention, in addition to having an intermediate insulating plate spaced between the positive connection terminal and the negative connection terminal to block current transmission, is further provided with a first insulating plate at the front end of the intermediate insulating plate and a second insulating plate at the rear end. The first insulating plate and the second insulating plate respectively block the positive and negative connection terminals of the high-voltage charging and discharging component and the conductive bar. An insulating isolation layer is also formed on both sides of the positive and negative connection terminals of the high-voltage charging and discharging component and the conductive bar to completely separate the positive connection terminal and the negative connection terminal.
[0016] Moreover, the first insulating plate and the second insulating plate are connected in a detachable manner, which provides convenience for technicians to subsequently maintain and repair the conductive bus, BDU, and charging and discharging high-voltage components.
[0017] In addition, a first positioning through hole is provided on the first insulating plate, and a second positioning through hole is provided on the second insulating plate. When installing the device of the utility model, by making the two ends of the bolt at the positive connection end position and the two ends of the bolt at the negative connection end position extend into the corresponding first positioning through hole and the second positioning through hole respectively, the first insulating plate and / or the second insulating plate can be clamped and connected to each other, and at the same time, they can be further limited in the vertical direction by the bolt-hole positioning method, so that the intermediate insulating plate is stably spaced between the positive connection end and the negative connection end. Even if the battery is in a vibrating and bumpy environment, the position of the intermediate insulating plate will not change, so as to ensure the insulation effect of the device of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.
[0019] Figure 1 This is a diagram showing the overall structure of the insulating protective member of Example 1;
[0020] Figure 2 This is a structural diagram of the working principle of the insulating protective member of Example 1;
[0021] Figure 3 This is a structural diagram of the first insulating plate and the intermediate insulating plate of Example 1;
[0022] Figure 4 This is a structural diagram of the second insulating plate of Example 1;
[0023] 1- conductive bar;
[0024] 2-Charging and discharging high voltage components;
[0025] 3- first insulating plate;
[0026] 4- second insulating plate;
[0027] 5-intermediate insulating plate;
[0028] 61-hook rod, 62-hook block;
[0029] 71 - first positioning through hole, 72 - second positioning through hole. DETAILED DESCRIPTION
[0030] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.
[0031] Example 1:
[0032] See also Figures 1 to 4 An insulating protective member in a specific embodiment of the utility model is used to isolate the conductive bar 1 from the positive connection end of the charging and discharging high-voltage component 2 and the negative connection end of the charging and discharging high-voltage component 2 to form electrical insulation. The insulating protective member includes a first insulating plate 3, a second insulating plate 4, and an intermediate insulating plate 5. The intermediate insulating plate 5 is arranged between the positive connection end and the negative connection end. The first insulating plate 3 and the second insulating plate 4 are relatively arranged on both sides of the positive and negative connection ends of the conductive bar 1 and the charging and discharging high-voltage component 2. The first insulating plate 3 is fixedly connected to the intermediate insulating plate 5, and the first insulating plate 3 is detachably connected to the second insulating plate 4.
[0033] Specifically, the first insulating plate 3, the second insulating plate 4, and the intermediate insulating plate 5 are all made of plastic, and all three are elastic; the intermediate insulating plate 5 and the second insulating plate 4 are both straight plates, and the intermediate insulating plate 5 and the first insulating plate 3 are integrally formed, and the intermediate insulating plate 5 is also vertically arranged in the middle of the first insulating plate 3; Figure 1 Taking the direction shown as an example, a hooking structure is provided on each of the left and right sides of the first insulating plate 3, and the hooking structure includes a hooking rod 61 extending vertically from the side position of the first insulating plate 3, and a hook block 62 provided at the outer extending end of the hooking rod 61 and biased toward the center of the first insulating plate 3; the hook block 62 is a right-angled trapezoidal block, and the bottom surface of the hook block 62 faces the first insulating plate 3; the width of the second insulating plate 4 is exactly the same as the distance between the two hooking rods 61, or slightly larger than the distance between the two hooking rods 61.
[0034] Furthermore, the length of the two hooking rods 61 is 1 mm smaller than the length of the intermediate insulating plate 5 .
[0035] In this regard, Figure 2Taking the direction shown as an example, after the technician uses bolts to securely connect the positive terminal of the BDU's conductive bar 1 to the positive terminal of the high-voltage charging and discharging component 2, and also uses bolts to securely connect the negative terminal of the BDU's conductive bar 1 to the negative terminal of the high-voltage charging and discharging component 2, a small gap will exist between the positive and negative connection terminals of the conductive bar 1 and the high-voltage charging and discharging component 2. At this time, the technician can install the first insulating plate 3 of this embodiment downwardly above the positive and negative connection terminals of the conductive bar 1 and the high-voltage charging and discharging component 2, and vertically insert the intermediate insulating plate 5 between the positive and negative connection terminals. Then, a second insulating plate 4 is installed below the positive and negative connection terminals of the conductive bar 1 and the high-voltage charging and discharging component 2, and the second insulating plate 4 is inserted horizontally between the two hook structures. At this time, the second insulating plate 4 is pressed against the bottom surfaces of the two hook blocks 62 by the intermediate insulating plate 5, thereby achieving a mutually limited connection between the first insulating plate 3 and the second insulating plate 4, so that the insulating protective member of this embodiment can be enclosed around the positive and negative connection terminals of the conductive bar 1 and the high-voltage charging and discharging component 2, achieving a better insulation protection effect.
[0036] When necessary, technicians can manually bend the hook rod 61 outward so that both hook blocks 62 move away from the center of the first insulating plate 3 until the hook blocks 62 are finally disengaged from the second insulating plate 4, thereby manually separating the first insulating plate 3 and the second insulating plate 4 from each other to facilitate replacement and maintenance of the conductive bar 1 or the charging and discharging high-voltage component 2.
[0037] In this embodiment, two first positioning through holes 71 are symmetrically provided on the first insulating plate 3. One first positioning through hole 71 is used for inserting the nut end of the bolt at the positive connection end of the conductive bar 1 and the high-voltage charging and discharging component 2, and the other first positioning through hole 71 is used for inserting the nut end of the bolt at the negative connection end of the conductive bar 1 and the high-voltage charging and discharging component 2. Figure 2 Taking the direction shown in as an example, at this time, the first insulating plate 3 is also limited by the two first positioning through holes 71 with the two screws, so that the first insulating plate 3 cannot move in the horizontal direction, and the entire insulating protective component can no longer move in the horizontal direction, ensuring that the entire insulating protective component can stably insulate and isolate the conductive bar 1 from the positive and negative connection ends of the charging and discharging high-voltage component 2.
[0038] Similarly, two second positioning holes 72 are symmetrically provided on the second insulating plate 4. One second positioning hole 72 is for receiving the threaded end of a bolt at the positive connection point between the conductive bar 1 and the high-voltage charging and discharging component 2. The other second positioning hole 72 is for receiving the threaded end of a bolt at the negative connection point between the conductive bar 1 and the high-voltage charging and discharging component 2. The second insulating plate 4 is also horizontally restrained to prevent it from moving laterally and separating from the hook block 62.
[0039] Moreover, when technicians actually install the insulating protective part of this embodiment, since the first insulating plate 3 and the second insulating plate 4 can be positioned with the bolts, there is no order of installation between the first insulating plate 3 and the second insulating plate 4, and technicians do not need to worry about the problem of the insulating plate installed first moving at its installation position.
[0040] In addition, in order to further enhance the insulation effect of the insulating protective part of this embodiment and prevent the current from being conducted from the end of the bolt extending into the corresponding positioning through hole, the first positioning through hole 71 and the second positioning through hole 72 are also provided with an insulating cover for covering the bolt. The insulating cover is made of rubber material and is tightly plugged into the first positioning through hole 71 or the second positioning through hole 72 to insulate and isolate the bolt from the outside of the corresponding insulating plate.
[0041] Example 2:
[0042] Although not shown in the drawings, it is understandable that: based on the first embodiment, the width of the second insulating plate 4 can also be set to be 2 cm larger than the gap between the two hook structures.
[0043] Specifically, when the width of the second insulating plate 4 is 2 cm larger than the gap between the two hooking rods 61, Figure 1 Taking the direction shown as an example, a hook hole is provided at each end of the left and right sides of the second insulating plate 4, and the hook block 62 can pass through the hook hole; and the hook rod 61 is a plastic rod, the hook rod 61 is also elastic, and the hook rod 61 is also inclined 5° toward the center direction of the first insulating plate 3.
[0044] In this embodiment, when the technician installs and connects the first insulating plate 3 and the second insulating plate 4, he needs to manually push the hook rod 61 toward the outside of the first insulating plate 3 to move the hook block 62 to the position aligned with the hook hole, and then extend the hook block 62 into the hook hole and extend from the other side of the second insulating plate 4. After that, the hook rod 61 is released, and the hook rod 61 is reset to the middle under the action of elastic force, driving the hook block 62 to hook the edge of the hook hole, so that the first insulating plate 3 and the second insulating plate 4 are hooked and connected to each other.
[0045] Similarly, the technician can also move the hook block 62 toward the outside of the second insulating plate 4 to align the hook block 62 with the hook hole, and withdraw the hook block 62 from the hook hole, thereby disassembling the first insulating plate 3 and the second insulating plate 4.
[0046] It should be noted that: in this embodiment, the second positioning through hole 72 on the second insulating plate 4 can be canceled or the first positioning through hole 71 on the first insulating plate 3 can be canceled; taking the case where the second positioning through hole 72 is not set as an example, the second insulating plate 4 can be connected to the first insulating plate 3 through the hook hole and the hook structure, and be limited by the hook structure and the hook hole, so as to be horizontally limited together with the first insulating plate 3.
[0047] In addition, Figure 1 Taking the direction shown as an example, a vertical strip-shaped abutment groove can also be provided in the middle of the inner side of the second insulating plate 4 to accommodate the abutment end of the intermediate insulating plate 5. The intermediate insulating plate 5 is positioned and connected with the second insulating plate 4 through the abutment groove to ensure that its position will not change easily, and there will be no gap between the intermediate insulating plate 5 and the second insulating plate 4 to prevent high voltage electricity from being conducted through the gap.
[0048] Any matters not mentioned above are applicable to the prior art.
[0049] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. An insulating protective member for isolating a conductive bar (1) from a positive connection end of a charging and discharging high-voltage component (2) and a negative connection end of a conductive bar (1) from a charging and discharging high-voltage component (2) to form electrical insulation, characterized in that: The invention comprises a first insulating plate (3), a second insulating plate (4), and an intermediate insulating plate (5); the intermediate insulating plate (5) is arranged at intervals between the positive electrode connection end and the negative electrode connection end; the first insulating plate (3) and the second insulating plate (4) are arranged relatively on both sides of the positive and negative electrode connection ends of the conductive bar (1) and the charging and discharging high-voltage component (2); the first insulating plate (3) and the intermediate insulating plate (5) are fixedly connected; and the first insulating plate (3) and the second insulating plate (4) are detachably connected.
2. The insulating protective member according to claim 1, wherein: The invention also includes a hooking structure for detachably connecting the first insulating plate (3) and the second insulating plate (4); the hooking structure includes a hooking rod (61) provided on the first insulating plate (3) or the second insulating plate (4), and a hook block (62) provided at the rod end of the hooking rod (61); the hooking structure hooks the second insulating plate (4) or the first insulating plate (3) on the opposite side through the hook block (62) to connect the first insulating plate (3) and the second insulating plate (4), and separates the first insulating plate (3) and the second insulating plate (4) by separating the hook block (62) from the second insulating plate (4) or the first insulating plate (3) on the opposite side.
3. The insulating protective member according to claim 2, wherein: It also includes a hooking hole formed on the hooked second insulating plate (4) or the first insulating plate (3); the hooking rod (61) is inserted into the hooking hole, and the hook block (62) is blocked and limited at the other end of the hooking hole with the hooked second insulating plate (4) or the first insulating plate (3), so as to hook and connect the first insulating plate (3) and the second insulating plate (4).
4. The insulating protective member according to claim 2, wherein: The length of the hooking rod (61) is equivalent to or less than the length of the intermediate insulating plate (5); when the first insulating plate (3) and the second insulating plate (4) are connected to each other, the intermediate insulating plate (5) pushes the second insulating plate (4) to press against the hook block (62), thereby further improving the hooking stability between the first insulating plate (3) and the second insulating plate (4).
5. The insulating protective member according to claim 4, characterized in that: It also includes an abutment groove provided on the second insulating plate (4) and used for positioning the intermediate insulating plate (5).
6. The insulating protective member according to claim 4, wherein: The hooking rod (61) is an elastic rod.
7. The insulating protective member according to claim 6, wherein: The hooking rod (61) is tilted toward the center of the first insulating plate (3) or the second insulating plate (4), and the hooking rod (61) is elastically tilted toward the outside of the first insulating plate (3) or the second insulating plate (4) to align with the hooking hole.
8. The insulating protective member according to claim 1, wherein: The conductive bar (1) and the charging and discharging high-voltage component (2) are connected by bolts; the first insulating plate (3) is further provided with two first positioning through holes (71), one of which is used for inserting the end of a bolt at the positive electrode connection end, and the other is used for inserting the end of a bolt at the negative electrode connection end, so that the first insulating plate (3) is accurately mounted on one side of the positive and negative electrode connection ends of the conductive bar (1) and the charging and discharging high-voltage component (2).
9. The insulating protective member according to claim 8, wherein: The second insulating plate (4) is provided with two second positioning through holes (72), one of which is used for inserting the end of a bolt at the positive electrode connection end, and the other second positioning through hole (72) is used for inserting the end of a bolt at the negative electrode connection end, so that the second insulating plate (4) is accurately mounted on the other side of the positive and negative electrode connection ends of the conductive bar (1) and the charging and discharging high-voltage component (2).
10. The insulating protective member according to claim 9, wherein: It also includes an insulating cover respectively arranged at the first positioning through hole (71) or the second positioning through hole (72), and the insulating cover is used to cover the first positioning through hole (71) or the second positioning through hole (72) so as to insulate and isolate the positive electrode connecting bolt from the external environment.