Electric control box, power battery cut-off unit, battery pack and vehicle

Abstract

The utility model provides an electric control box, a power battery cut-off unit, a battery pack and a vehicle, the electric control box comprises a shell, the shell is provided with an electric appliance cavity and a conductive cavity which are spaced from each other, the electric appliance cavity is used for accommodating an electric element, the conductive cavity is used for accommodating a conductive plate for supplying energy to the electric element, and the conductive cavity comprises at least two sub conductive cavities spaced from each other; at least one sub-conductive cavity is used for accommodating a conductive plate connected with the positive electrode of the power supply, and at least one sub-conductive cavity is used for accommodating a conductive plate connected with the negative electrode of the power supply in the remaining sub-conductive cavities except for the sub-conductive cavity used for accommodating the conductive plate connected with the positive electrode of the power supply. According to the electric control box provided by the embodiment of the invention, the conductive plates can be arranged closer to the electric element, two adjacent conductive plates can be arranged closer to each other, the overall structure of the power battery cut-off unit is more compact, the energy density of a battery pack is improved, and the endurance mileage of a vehicle is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of batteries, and in particular to an electric control box, a power battery disconnection unit, a battery pack and a vehicle. Background Art

[0002] As the power and cell capacity of electric vehicle charging piles increase, the charging and discharging currents are getting higher and higher, and the electrical components and connections in the battery pack need to increase their current-carrying capacity as much as possible.

[0003] In the related art, in order to simultaneously meet the requirements of electrical clearance creepage distance and copper busbar current carrying capacity, the overall volume of the power battery disconnection unit will be larger, resulting in a lower energy density of the battery pack. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides an electric control box, a power battery cut-off unit, a battery pack and a vehicle.

[0005] The present application discloses an electric control box, comprising: a shell, the shell having an electrical cavity and a conductive cavity spaced apart from each other, the electrical cavity being used to accommodate electrical components, the conductive cavity being used to accommodate a conductive plate for supplying energy to the electrical components, the conductive cavity comprising at least two sub-conductive cavities spaced apart from each other, at least one of the sub-conductive cavities being used to accommodate a conductive plate connected to a positive pole of a power source, and except for the sub-conductive cavity being used to accommodate a conductive plate connected to a positive pole of a power source, at least one of the remaining sub-conductive cavities is used to accommodate a conductive plate connected to a negative pole of a power source.

[0006] Optionally, the shell includes at least one electrical connection structure, the electrical connection structure includes two electrical connection holes, the electrical connection holes connect the electrical cavity and the sub-conductive cavity, and the electrical component and the conductive plate are suitable for being electrically connected through the electrical connection holes.

[0007] Optionally, there is at least one first isolation plate in the electrical cavity, one electrical connection structure corresponds to one first isolation plate, the first isolation plate is arranged radially outside the corresponding electrical connection structure, the first isolation plate defines a first insulation groove, and the first insulation groove is used to install the electrical components.

[0008] Optionally, the isolation plate is provided with a clamping structure, and the clamping structure is used to clamp and position the electrical component.

[0009] Optionally, there is at least one second isolation plate in the electrical cavity, one electrical connection structure corresponds to one second isolation plate, the second isolation plate includes two sub-isolation plates, the sub-isolation plates are arranged radially outward of the corresponding electrical connection hole, the sub-isolation plates define a second insulation groove, and the second insulation groove is used to accommodate a conductive column electrically connected to the electrical component.

[0010] Optionally, the two sub-isolating plates are arranged opposite to each other and at a distance from each other, and a mounting position for the electrical component is defined between the two sub-isolating plates. An avoidance gap is provided on the side wall of the sub-isolating plate facing the mounting position, and the avoidance gap is used to avoid an electrical connecting piece of the electrical component.

[0011] Optionally, the shell includes a first shell and a second shell, the first shell having a conductive cavity and an electrical appliance slot, the second shell covering the opening of the electrical appliance slot to define the electrical appliance cavity together with the first shell; a distribution pole is provided in the electrical appliance slot, the distribution pole is provided at the edge of the electrical appliance slot and has a distribution card slot, the distribution card slot is used to accommodate the conductive plate and an electrical connection plate connected to a power supply, a fastening hole is formed on the bottom surface of the distribution card slot, and a fastener is suitable for being inserted into the fastening hole to press the conductive plate and the electrical connection plate tightly.

[0012] The present application also discloses a power battery cut-off unit, comprising: an electric control box provided according to the above disclosure; an electrical component, at least one electrical component, wherein the electrical component is arranged in an electrical cavity of the electric control box, and the electrical component is one of a relay, a current Hall sensor, a shunt, a pre-charging resistor, and a fuse; and a conductive plate, which is inserted into the conductive cavity of the electric control box and is used to supply energy to the electrical component.

[0013] The present application also discloses a battery pack, comprising: a power battery cut-off unit provided according to the above disclosure.

[0014] The present application also discloses a vehicle, comprising: a battery pack provided according to the above disclosure.

[0015] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0016] According to the electric control box provided by the embodiment of the present disclosure, by arranging mutually spaced conductive cavities and electrical cavities in the shell, the shell between the conductive cavity and the electrical cavity can be used to separate the electrical components from the conductive plate. Compared with the conductive plate and the electrical components arranged through air intervals, the physical distance between the conductive plate and the electrical components is reduced, so that the conductive plate and the electrical components can be arranged closer. By arranging the conductive cavity as at least a sub-conductive cavity arranged at intervals, the shell between two adjacent conductive cavities can be used to separate two adjacent conductive plates, and the physical distance between the two adjacent conductive plates is reduced, so that the two adjacent conductive plates can be arranged closer, so that the overall structure of the power battery cut-off unit is more compact, the energy density of the battery pack is improved, and the cruising range of the vehicle is improved.

[0017] According to the power battery disconnection unit provided in the embodiment of the present disclosure, by setting the above-mentioned electric control box, the conductive plate and the electrical component can be set closer, and the two adjacent conductive plates can be set closer, so that the overall structure of the power battery disconnection unit is more compact, the energy density of the battery pack is improved, and the cruising range of the vehicle is improved.

[0018] According to the battery pack provided in the embodiment of the present disclosure, by providing the above-mentioned power battery disconnection unit, the overall structure of the battery pack can be made more compact, the energy density of the battery pack can be improved, and the cruising range of the vehicle can be improved.

[0019] According to the vehicle provided by the embodiment of the present disclosure, by providing the above-mentioned battery pack, the overall structure of the battery pack is compact and the energy density of the battery pack is high, which can improve the cruising range of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A three-dimensional diagram of a power battery cut-off unit according to some embodiments of the present disclosure;

[0023] Figure 2 for Figure 1 A schematic structural diagram of a power battery cut-off unit in which the second housing is hidden;

[0024] Figure 3 for Figure 1 A top view of the first shell in FIG.

[0025] Among them, 100, power battery cut-off unit;

[0026] 10. Electric control box;

[0027] 1. Shell; 11. Electrical cavity; 12. First shell; 121. Electrical slot; 122. Distribution pole; 123. Distribution card slot; 13. Second shell;

[0028] 2. Electrical connection structure; 21. Electrical connection hole;

[0029] 3. a first isolation plate; 31. a first insulation slot;

[0030] 41. Sub-isolating plate; 42. Second insulating slot; 43. Avoidance gap; 44. Mounting position;

[0031] 60. Conductive column;

[0032] 70. Electrical components; 71. Electrical connecting pieces;

[0033] 80. Electrical connection board. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0036] Reference Figure 1-Figure 3 The present application discloses an electric control box 10, comprising: a housing 1, the housing 1 having an electrical cavity 11 and a conductive cavity, the electrical cavity 11 and the conductive cavity are spaced apart from each other, the electrical cavity 11 is used to accommodate an electrical component 70, for example, when the electric control box 10 is applied to a power battery cut-off unit 100, the electrical component 70 may be one of a relay, a current Hall sensor, a shunt, a pre-charge resistor, and a fuse. The conductive cavity is used to accommodate a conductive plate for supplying energy to the electrical component 70; for example, the conductive plate may be a copper busbar or an aluminum busbar.

[0037] By setting a conductive cavity and an electrical cavity 11 spaced apart from each other in the shell 1, the conductive plate can be set in the conductive cavity, and the electrical component 70 can be set in the electrical cavity 11. The shell 1 between the conductive cavity and the electrical cavity 11 can be used to separate the electrical component 70 from the conductive plate. Compared with the conductive plate and the electrical component 70 set through an air gap, this can reduce the physical distance between the conductive plate and the electrical component 70, so that the conductive plate and the electrical component 70 can be set closer, making the overall structure of the power battery cut-off unit 100 more compact, thereby improving the energy density of the battery pack and improving the vehicle's cruising range.

[0038] The conductive cavity includes at least two sub-conductive cavities spaced apart from each other, at least one sub-conductive cavity is used to accommodate a conductive plate connected to the positive pole of the power supply, and except for the sub-conductive cavity used to accommodate the conductive plate connected to the positive pole of the power supply, at least one sub-conductive cavity in the remaining sub-conductive cavities is used to accommodate a conductive plate connected to the negative pole of the power supply.

[0039] By setting the conductive cavity as at least a sub-conductive cavity arranged at intervals, the positive conductive plate and the negative conductive plate can be respectively inserted into different sub-conductive cavities, and the shell 1 between two adjacent conductive cavities can separate the two adjacent conductive plates. Compared with the conductive plates arranged through air intervals, this can reduce the physical distance between the two adjacent conductive plates, so that the two adjacent conductive plates can be arranged closer, making the overall structure of the power battery cut-off unit 100 more compact, improving the energy density of the battery pack, and improving the vehicle's cruising range.

[0040] For example, the electric control box 10 can be integrally formed with the conductive plate, which can effectively reduce the size of the conductive cavity, further reduce the overall volume of the power battery disconnection unit 100, and improve the energy density of the battery pack.

[0041] Reference Figure 3 According to some embodiments provided by the present disclosure, the housing 1 includes at least one electrical connection structure 2, and the electrical connection structure 2 includes two electrical connection holes 21. The electrical connection holes 21 connect the electrical cavity 11 and the sub-conductive cavity, and the electrical component 70 and the conductive plate are suitable for being electrically connected through the electrical connection holes 21. By providing the electrical connection holes 21, it is convenient to electrically connect the conductive plate and the electrical component 70. At the same time, the housing 1 between the two electrical connection holes 21 can separate the positive and negative electrodes of the electrical component 70 from the contact points of the conductive plate, thereby preventing the insulation failure of the contact points of the positive and negative electrodes of the electrical component 70 and the conductive plate, thereby improving the reliability of the electric control box 10, improving the reliability of the power battery cut-off unit 100, and improving the reliability of the battery pack.

[0042] Reference Figure 2 and Figure 3According to some embodiments provided by the present disclosure, at least one first isolation plate 3 is provided in the electrical cavity 11, one electrical connection structure 2 corresponds to one first isolation plate 3, the first isolation plate 3 is arranged around the radial outer side of the corresponding electrical connection structure 2, and the first isolation plate 3 defines a first insulation groove 31, and the first insulation groove 31 is used to install the electrical component 70. The first isolation plate 3 can separate two adjacent electrical components 70, improve the insulation coefficient between the two adjacent electrical components 70, effectively prevent or avoid insulation failure between the electrical components 70, improve the reliability of the power battery disconnection unit 100, so that the two adjacent electrical components 70 can be arranged closer, and reduce the overall size of the power battery disconnection unit 100.

[0043] Reference Figure 2 and Figure 3 According to some embodiments provided by the present disclosure, the isolation plate is provided with a clamping structure, and the clamping structure is used to clamp and position the electrical component 70. This facilitates the installation of the electrical component 70, improves the installation efficiency of the electrical component 70, and improves the production efficiency of the power battery disconnection unit 100.

[0044] Reference Figure 2 and Figure 3 According to some embodiments provided by the present disclosure, there is at least one second isolation plate in the electrical cavity 11, one electrical connection structure 2 corresponds to one second isolation plate, the second isolation plate includes two sub-isolation plates 41, the sub-isolation plates 41 are arranged radially outside the corresponding electrical connection holes 21, the sub-isolation plates 41 define a second insulation groove 42, and the second insulation groove 42 is used to accommodate a conductive column 60 electrically connected to an electrical component 70.

[0045] The electrical connection sheets 71 of the positive and negative electrodes cannot be placed on the same surface of the electrical components 70, which can be electrically connected to the conductive plate by providing a conductive column 60, thereby improving the applicability of the electrical box. By providing a sub-isolating plate 41 to separate the second insulating groove 42 for accommodating the conductive column 60, the conductive column 60 can be effectively insulated, so that the conductive column 60 can be arranged closer to the adjacent electrical components 70 or conductive columns 60, thereby reducing the overall size of the power battery disconnection unit 100.

[0046] Reference Figure 2 and Figure 3 According to some embodiments provided by the present disclosure, two sub-isolating plates 41 are arranged opposite to each other and spaced apart, and a mounting position 44 for an electrical component 70 is defined between the two sub-isolating plates 41, and a relief notch 43 is provided on the side wall of the sub-isolating plate 41 facing the mounting position 44, and the relief notch 43 is used to avoid the electrical connection piece 71 of the electrical component 70. For example, an annular mounting plate is provided on the mounting position 44, and the mounting plate defines a mounting groove, and a mounting notch is provided on the side wall of the sub-isolating plate 41 facing the mounting position, and the mounting notch is opposite to the relief notch 43.

[0047] In this way, part of the electrical connecting piece 71 of the electrical component 70 can be arranged in the second insulating groove 42, so that the sub-isolating plate 41 can provide insulation protection for the electrical connecting piece 71 of the electrical component 70, effectively preventing insulation failure of the electrical connecting piece 71 of the electrical component 70, and improving the reliability of the power battery disconnection unit 100.

[0048] Reference Figure 2 and Figure 3 According to some embodiments provided by the present disclosure, the shell 1 includes a first shell 12 and a second shell 13, the first shell 12 has a conductive cavity and an electrical appliance slot 121, the second shell 13 covers the opening of the electrical appliance slot 121, and the second shell 13 and the first shell 12 jointly define the electrical appliance cavity 11.

[0049] A distribution pole 122 is provided in the electrical appliance slot 121. The distribution pole 122 is provided at the edge of the electrical appliance slot 121, and the distribution pole 122 has a distribution card slot 123. The distribution card slot 123 is used to accommodate the conductive plate and the electrical connection plate 80. The electrical connection plate 71 electrically connects the conductive plate and the power supply. A fastening hole is formed on the bottom surface of the distribution card slot 123. The fastener is suitable for being inserted into the fastening hole to press the conductive plate and the electrical connection plate 80 tightly; for example, the other end of the electrical connection plate 80 is suitable for being connected to the power supply of the power battery cut-off unit 100, or the other end of the electrical connection plate 80 is suitable for being connected to the protection object of the power battery cut-off unit 100.

[0050] This facilitates the installation of the electrical connection plate 80 , can improve the installation efficiency of the electrical connection plate 80 , improve the assembly efficiency of the power battery disconnection unit 100 , improve the production efficiency of the power battery disconnection unit 100 , and reduce the production cost of the power battery disconnection unit 100 .

[0051] Reference Figure 1 and Figure 2 The present application also discloses a power battery disconnection unit 100, comprising: an electric control box 10, an electrical component 70 and a conductive plate, wherein the electric control box 10 is the electric control box 10 provided according to the above disclosure; there is at least one electrical component 70, and the electrical component 70 is arranged in an electrical cavity 11 of the electric control box 10, for example, the electrical component 70 can be one of a relay, a current Hall sensor, a shunt, a pre-charging resistor, and a fuse; the conductive plate is penetrated into the conductive cavity of the electric control box 10, and the conductive plate is used to supply energy to the electrical component 70.

[0052] According to the power battery disconnection unit 100 provided in the embodiment of the present disclosure, by setting the above-mentioned electric control box 10, two adjacent conductive plates can be set closer, so that the overall structure of the power battery disconnection unit 100 is more compact, the energy density of the battery pack is improved, and the cruising range of the vehicle is improved.

[0053] The present application also discloses a battery pack, including: a power battery disconnection unit 100 provided according to the above disclosure.

[0054] According to the battery pack provided in the embodiment of the present disclosure, by providing the above-mentioned power battery disconnection unit 100, the overall structure of the battery pack can be made more compact, the energy density of the battery pack can be improved, and the cruising range of the vehicle can be improved.

[0055] The present application also discloses a vehicle, comprising: a battery pack provided according to the above disclosure. For example, the vehicle may be a car.

[0056] According to the vehicle provided by the embodiment of the present disclosure, by providing the above-mentioned battery pack, the overall structure of the battery pack is compact and the energy density of the battery pack is high, which can improve the cruising range of the vehicle.

[0057] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric control box, characterized in that: include: The shell has an electrical cavity and a conductive cavity spaced apart from each other, the electrical cavity is used to accommodate electrical components, the conductive cavity is used to accommodate a conductive plate for supplying energy to the electrical components, the conductive cavity includes at least two sub-conductive cavities spaced apart from each other, at least one of the sub-conductive cavities is used to accommodate a conductive plate connected to a positive pole of a power source, and except for the sub-conductive cavity used to accommodate a conductive plate connected to a positive pole of a power source, at least one of the remaining sub-conductive cavities is used to accommodate a conductive plate connected to a negative pole of a power source.

2. The electric control box according to claim 1, characterized in that: The shell includes at least one electrical connection structure, and the electrical connection structure includes two electrical connection holes. The electrical connection holes connect the electrical cavity and the sub-conductive cavity, and the electrical component and the conductive plate are suitable for being electrically connected through the electrical connection holes.

3. The electric control box according to claim 2, characterized in that: There is at least one first isolation plate in the electrical cavity, one electrical connection structure corresponds to one first isolation plate, the first isolation plate is arranged radially outside the corresponding electrical connection structure, the first isolation plate defines a first insulation groove, and the first insulation groove is used to install the electrical component.

4. The electric control box according to claim 3, characterized in that: The isolation plate is provided with a clamping structure, and the clamping structure is used for clamping and positioning the electrical component.

5. The electric control box according to claim 2, characterized in that: There is at least one second isolation plate in the electrical cavity, one electrical connection structure corresponds to one second isolation plate, the second isolation plate includes two sub-isolation plates, the sub-isolation plates are arranged radially outside the corresponding electrical connection holes, the sub-isolation plates define a second insulation groove, and the second insulation groove is used to accommodate a conductive column electrically connected to the electrical component.

6. The electric control box according to claim 5, characterized in that: The two sub-isolating plates are arranged opposite to each other and at intervals, and the installation position of the electrical component is defined between the two sub-isolating plates. An avoidance gap is opened on the side wall of the sub-isolating plate facing the installation position, and the avoidance gap is used to avoid the electrical connecting piece of the electrical component.

7. The electric control box according to any one of claims 1 to 6, characterized in that: The housing comprises a first housing and a second housing, the first housing having a conductive cavity and an electrical appliance slot, the second housing sealing the opening of the electrical appliance slot to define the electrical appliance cavity together with the first housing; A distribution pole is provided in the electrical appliance slot. The distribution pole is provided at the edge of the electrical appliance slot and has a distribution card slot. The distribution card slot is used to accommodate the conductive plate and an electrical connection plate connected to a power source. A fastening hole is formed on the bottom surface of the distribution card slot. A fastener is suitable for passing through the fastening hole to tightly press the conductive plate and the electrical connection plate.

8. A power battery disconnection unit, characterized in that: include: The electric control box according to any one of claims 1 to 7; At least one electrical component, which is disposed in the electrical cavity of the electrical control box and is one of a relay, a current Hall sensor, a shunt, a pre-charging resistor, and a fuse; The conductive plate is inserted into the conductive cavity of the electric control box and is used to supply energy to the electrical components.

9. A battery pack, characterized in that: include: The power battery disconnect unit as claimed in claim 8.

10. A vehicle, characterized in that: include: The battery pack as claimed in claim 9.

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