阅读说明：本技术 电池包高压安全防护装置 (High-voltage safety protection device for battery pack ) 是由 杨艳侠 于 2021-06-17 设计创作，主要内容包括：本发明公开了一种电池包高压安全防护装置,涉及电池包防护装置领域,包括高压防护罩、保险、第一高压端子、第二高压端子；所述高压防护罩包括绝缘墙,两个绝缘墙相对设置,两个绝缘墙之间形成安装通道；所述保险位于所述安装通道中,所述第一高压端子、第二高压端子分别从所述安装通道的两端伸入所述安装通道中并分别与所述保险的两端固定连接。本发明的优点在于：提高了电池包的电气安全防护效果,起到安全防护作用。(The invention discloses a high-voltage safety protection device for a battery pack, which relates to the field of battery pack protection devices and comprises a high-voltage protective cover, a fuse, a first high-voltage terminal and a second high-voltage terminal; the high-voltage protective cover comprises two insulating walls which are arranged oppositely, and an installation channel is formed between the two insulating walls; the fuse is located in the installation channel, and the first high-voltage terminal and the second high-voltage terminal respectively extend into the installation channel from two ends of the installation channel and are respectively fixedly connected with two ends of the fuse. The invention has the advantages that: the electric safety protection effect of the battery pack is improved, and the safety protection effect is achieved.)

1. The utility model provides a battery package high pressure safety device which characterized in that: the high-voltage protection circuit comprises a high-voltage protection cover (2), a fuse (3), a first high-voltage terminal (4) and a second high-voltage terminal (5); the high-voltage protective cover (2) comprises insulating walls (21), the two insulating walls (21) are arranged oppositely, and an installation channel is formed between the two insulating walls (21); the fuse (3) is located in the installation channel, and the first high-voltage terminal (4) and the second high-voltage terminal (5) respectively extend into the installation channel from two ends of the installation channel and are respectively fixedly connected with two ends of the fuse (3).

2. The battery pack high voltage safety protection device of claim 1, wherein: the high-voltage safety protection device for the battery pack further comprises an insulating column (1), wherein the insulating column (1), the high-voltage protective cover (2), the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) are all arranged inside a box body (8) of the battery pack; the insulation column (1) is fixedly connected with the mounting surface inside the box body (8), and the whole body formed by the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) is fixedly connected with the insulation column (1).

3. The battery pack high voltage safety protection device of claim 2, wherein: one of the insulating walls (21) is provided with a notch close to one end of the installation channel.

4. The battery pack high voltage safety protection device of claim 2, wherein: the high-voltage protection cover (2) further comprises a sleeve (22), the sleeve (22) is located between the two insulation walls (21), two sides of the sleeve (22) are fixedly connected with the two insulation walls (21) respectively, and a through hole communicated between the bottom of the high-voltage protection cover (2) and the installation channel is formed in the sleeve (22); the sleeve (22) is sleeved on the insulating column (1), and the whole body formed by the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) is fixedly connected with the part, located in the installation channel, of the insulating column (1).

5. The battery pack high voltage safety protection device of claim 4, wherein: the number of the insulating columns (1) is two, and the two insulating columns (1) are arranged at intervals along the length direction of the mounting channel; the number of the sleeves (22) is two, and the two sleeves (22) are arranged at intervals along the length direction of the mounting channel; the two sleeves (22) are respectively sleeved on the two insulating columns (1); one end of the fuse (3), the first high-voltage terminal (4) and one of the insulating columns (1) are fixedly connected together, and the other end of the fuse (3), the second high-voltage terminal (5) and the other insulating column (1) are fixedly connected together.

6. The battery pack high voltage safety protection device of claim 5, wherein: the high-voltage protection cover (2) further comprises a supporting mechanism (23), the supporting mechanism (23) is located between the two sleeves (22), two sides of the supporting mechanism (23) are fixedly connected with the two insulating walls (21) respectively, and the supporting mechanism (23) is supported at the bottom of the fuse (3).

7. The battery pack high voltage safety protection device of claim 6, wherein: an opening is formed in the top of the supporting mechanism (23), and the fuse (3) is clamped by the opening in the top of the supporting mechanism (23).

8. The battery pack high voltage safety protection device of claim 5, wherein: the insulating column (1) comprises a threaded column (11), the threaded column (11) being located in the mounting channel; two ends of the fuse (3) are respectively provided with a connecting hole (31), and the two connecting holes (31) are respectively sleeved on the outer rings of the threaded columns (11) of the two insulating columns (1); the first high-voltage terminal (4) and the second high-voltage terminal (5) are respectively sleeved on the outer rings of the threaded columns (11) of the two insulating columns (1); the high-voltage safety protection device for the battery pack further comprises nuts (6), the two nuts (6) are respectively connected to threaded columns (11) of the two insulating columns (1), one end of the fuse (3), the first high-voltage terminal (4) and one insulating column (1) are fixedly connected together through one nut (6), and the other end of the fuse (3), the second high-voltage terminal (5) and the other insulating column (1) are fixedly connected together through the other nut (6).

9. The battery pack high voltage safety protection device of claim 8, wherein: the insulating column (1) further comprises a middle column (12) and a base (13), the threaded column (11), the middle column (12) and the base (13) are fixedly connected in sequence, the middle column (12) is located in a through hole in the sleeve (22), and the base (13) is limited at the outer side of the bottom of the sleeve (22).

10. The battery pack high voltage safety protection device of claim 9, wherein: the bottom of the base (13) is provided with a threaded groove (14); the high-voltage safety protection device for the battery pack further comprises screws (7), and the two screws (7) penetrate through the mounting surface inside the box body (8) and are connected into the thread grooves (14) of the two insulating columns (1) respectively.

Technical Field

The invention relates to the field of battery pack protection devices, in particular to a high-voltage safety protection device for a battery pack.

Background

With the rise of new energy industry and the attention of the state to the new energy industry, the electrical safety of the power battery is of great importance, and in order to improve the safety design of the battery, the insulation protection of each high-voltage part is worth paying attention to and paying attention to. Patent CN112635883A discloses a new energy automobile battery package, including battery box and control and distribution assembly, the battery box includes box down, control and distribution assembly include insulating support, contactor, first insurance and binding post, insulating support is fixed on the lateral wall of box down, contactor, first insurance and binding post are fixed on insulating support, contactor, inside first insurance and binding post pass through the box under the insulating support embedding, the one end and the binding post of first insurance are connected, the other end and the output of contactor of first insurance are connected. In the prior art, insulation protection between the high-voltage piece and the battery pack box body is not enough, and the electrical safety protection effect of the battery pack is poor.

Disclosure of Invention

The invention aims to provide a high-voltage safety protection device for a battery pack, which can improve the electric safety protection effect of the battery pack.

The invention solves the technical problems through the following technical means: the high-voltage safety protection device for the battery pack comprises a high-voltage protection cover (2), a fuse (3), a first high-voltage terminal (4) and a second high-voltage terminal (5); the high-voltage protective cover (2) comprises insulating walls (21), the two insulating walls (21) are arranged oppositely, and an installation channel is formed between the two insulating walls (21); the fuse (3) is located in the installation channel, and the first high-voltage terminal (4) and the second high-voltage terminal (5) respectively extend into the installation channel from two ends of the installation channel and are respectively fixedly connected with two ends of the fuse (3). Two insulating walls of the high-voltage protective cover are respectively positioned on two sides of the junction of the fuse and the first high-voltage terminal and the junction of the fuse and the second high-voltage terminal, the creepage distance can be increased, the safety protection effect is achieved, and the electric safety protection effect is improved.

As an optimized technical scheme, the high-voltage safety protection device for the battery pack further comprises an insulating column (1), wherein the insulating column (1), the high-voltage protective cover (2), the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) are all arranged inside a box body (8) of the battery pack; the insulation column (1) is fixedly connected with the mounting surface inside the box body (8), and the whole body formed by the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) is fixedly connected with the insulation column (1). When installing this battery package high pressure safety device in the battery package, high pressure conduction between the box of insurance, first high voltage terminal, second high voltage terminal and panel beating can effectively be kept apart to insulated column and high pressure protection casing.

As an optimized technical scheme, one end of one of the insulating walls (21) close to the installation channel is provided with a notch. When the high-voltage protective cover is installed at the included angle position of two side walls close to the box body, one end of each of the two insulating walls is close to the side wall of the box body, and a notch is formed in one end, close to the side wall of the box body, of each insulating wall close to the outer side, so that the installation of the first high-voltage terminal is facilitated.

As an optimized technical scheme, the high-voltage protection cover (2) further comprises a sleeve (22), the sleeve (22) is located between the two insulation walls (21), two sides of the sleeve (22) are fixedly connected with the two insulation walls (21) respectively, and a through hole communicated between the bottom of the high-voltage protection cover (2) and the installation channel is formed in the sleeve (22); the sleeve (22) is sleeved on the insulating column (1), and the whole body formed by the fuse (3), the first high-voltage terminal (4) and the second high-voltage terminal (5) is fixedly connected with the part, located in the installation channel, of the insulating column (1). Simple structure, easy to assemble.

As an optimized technical scheme, two insulating columns (1) are arranged, and the two insulating columns (1) are arranged at intervals along the length direction of the installation channel; the number of the sleeves (22) is two, and the two sleeves (22) are arranged at intervals along the length direction of the mounting channel; the two sleeves (22) are respectively sleeved on the two insulating columns (1); one end of the fuse (3), the first high-voltage terminal (4) and one of the insulating columns (1) are fixedly connected together, and the other end of the fuse (3), the second high-voltage terminal (5) and the other insulating column (1) are fixedly connected together.

As an optimized technical scheme, the high-voltage protection cover (2) further comprises a supporting mechanism (23), the supporting mechanism (23) is located between the two sleeves (22), two sides of the supporting mechanism (23) are fixedly connected with the two insulating walls (21) respectively, and the supporting mechanism (23) is supported at the bottom of the fuse (3).

As an optimized technical scheme, an opening is formed in the top of the supporting mechanism (23), and the fuse (3) is clamped by the opening in the top of the supporting mechanism (23).

As an optimized technical scheme, the insulation column (1) comprises a threaded column (11), and the threaded column (11) is located in the installation channel; two ends of the fuse (3) are respectively provided with a connecting hole (31), and the two connecting holes (31) are respectively sleeved on the outer rings of the threaded columns (11) of the two insulating columns (1); the first high-voltage terminal (4) and the second high-voltage terminal (5) are respectively sleeved on the outer rings of the threaded columns (11) of the two insulating columns (1); the high-voltage safety protection device for the battery pack further comprises nuts (6), the two nuts (6) are respectively connected to threaded columns (11) of the two insulating columns (1), one end of the fuse (3), the first high-voltage terminal (4) and one insulating column (1) are fixedly connected together through one nut (6), and the other end of the fuse (3), the second high-voltage terminal (5) and the other insulating column (1) are fixedly connected together through the other nut (6). The safety, the first high-voltage terminal and the second high-voltage terminal are locked on the two threaded columns through nuts, and the installation is convenient.

As an optimized technical scheme, the insulating column (1) further comprises a middle column (12) and a base (13), the threaded column (11), the middle column (12) and the base (13) are sequentially and fixedly connected, the middle column (12) is located in a through hole in the sleeve (22), and the base (13) is limited on the outer side of the bottom of the sleeve (22).

As an optimized technical scheme, a threaded groove (14) is formed in the bottom of the base (13); the high-voltage safety protection device for the battery pack further comprises screws (7), and the two screws (7) penetrate through the mounting surface inside the box body (8) and are connected into the thread grooves (14) of the two insulating columns (1) respectively.

The invention has the advantages that: the creepage distance can be increased, the safety protection effect is achieved, and the electric safety protection effect is improved; simple structure, easy to assemble.

Drawings

Fig. 1 is a schematic structural diagram of a battery pack high-voltage safety protection device installed inside a box body of a battery pack according to an embodiment of the invention.

Fig. 2 is a schematic cross-sectional view of a high-voltage safety protection device for a battery pack according to an embodiment of the invention.

Fig. 3 is a schematic structural diagram of an insulating column according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a high-pressure protective cover according to an embodiment of the invention.

Fig. 5 is a schematic structural diagram of the fuse according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the high voltage safety protection device for the battery pack includes an insulating column 1, a high voltage protection cover 2, a fuse 3, a first high voltage terminal 4, a second high voltage terminal 5, a nut 6, and a screw 7.

As shown in fig. 1 and 2, the insulating column 1, the high-voltage protection cover 2, the fuse 3, the first high-voltage terminal 4, the second high-voltage terminal 5, the nut 6 and the screw 7 are all installed inside a box body 8 of the battery pack, and the insulating column 1 and the high-voltage protection cover 2 are made of insulating materials.

As shown in fig. 3, the insulating column 1 comprises a threaded column 11, a middle column 12, a base 13 and a threaded groove 14; the threaded column 11, the middle column 12 and the base 13 are fixedly connected in sequence, and the threaded column 11, the middle column 12 and the base 13 are coaxially arranged and the cross-sectional areas are sequentially increased; the middle column 12 is a cylinder; the bottom center of the base 13 is provided with a threaded groove 14.

As shown in fig. 4, the high voltage protection cover 2 includes an insulating wall 21, a sleeve 22, and a support mechanism 23; the two insulating walls 21 are oppositely arranged, an installation channel is formed between the two insulating walls 21, and a gap is formed at one end of one of the insulating walls 21 close to the installation channel; two sleeves 22 are arranged, and the two sleeves 22 are arranged at intervals along the length direction of the mounting channel; each sleeve 22 is positioned between the two insulating walls 21, two sides of each sleeve 22 are fixedly connected with the two insulating walls 21 respectively, and each sleeve 22 is provided with a cylindrical through hole communicated between the bottom of the high-voltage protective cover 2 and the installation channel; the supporting mechanism 23 is located between the two sleeves 22, two sides of the supporting mechanism 23 are respectively and fixedly connected with the two insulating walls 21, and an opening is formed in the top of the supporting mechanism 23.

As shown in fig. 5, the fuse 3 is provided at both ends thereof with coupling holes 31, respectively.

As shown in fig. 1 and 2, the insulating column 1 is fixedly connected with a mounting surface in the box body 8; the number of the insulating columns 1 is two, and the two insulating columns 1 are arranged at intervals along the length direction of the mounting channel; two screws 7 respectively penetrate through the mounting surface inside the box body 8 and are respectively connected in the threaded grooves 14 of the two insulation columns 1.

The two sleeves 22 of the high-voltage protective cover 2 are respectively sleeved on the two insulating columns 1, each insulating column 1 penetrates through a through hole in the corresponding sleeve 22 from the bottom of the high-voltage protective cover 2 to enter the installation channel, the threaded column 11 is located in the installation channel, the middle column 12 is located in the through hole in the sleeve 22, and the base 13 is limited at the outer side of the bottom of the sleeve 22.

The fuse 3 is positioned in the installation channel, and two insulating walls 21 respectively separate the fuse 3 and the connection part of the fuse 3 and the first high-voltage terminal 4 and the second high-voltage terminal 5 from two opposite side walls of the box body 8 at two sides of the fuse 3; the first high-voltage terminal 4 and the second high-voltage terminal 5 respectively extend into the installation channel from two ends of the installation channel and are respectively fixedly connected with two ends of the fuse 3, the whole body formed by the fuse 3, the first high-voltage terminal 4 and the second high-voltage terminal 5 is fixedly connected with the part, located in the installation channel, of the insulating column 1, and the insulating column 1 separates the fuse 3 and the connecting part of the fuse 3, the first high-voltage terminal 4 and the second high-voltage terminal 5 from the installation surface inside the box body 8.

The two connecting holes 31 of the fuse 3 are respectively sleeved on the outer rings of the threaded columns 11 of the two insulating columns 1, and the first high-voltage terminal 4 and the second high-voltage terminal 5 are respectively sleeved on the outer rings of the threaded columns 11 of the two insulating columns 1; two nuts 6 are respectively connected to the two threaded columns 11, wherein one nut 6 fixedly connects one end of the fuse 3, the first high-voltage terminal 4 and one insulating column 1 together, and the other nut 6 fixedly connects the other end of the fuse 3, the second high-voltage terminal 5 and the other insulating column 1 together; the support mechanism 23 is supported at the bottom of the fuse 3, and an opening at the top of the support mechanism 23 catches the fuse 3.

The working principle of the high-voltage safety protection device of the battery pack is as follows: the insulating column 1 can effectively isolate high-voltage conduction among the fuse 3, the first high-voltage terminal 4, the second high-voltage terminal 5 and the box body 8 of the metal plate; the two insulating walls 21 of the high-voltage protective cover 2 separate the fuse 3 and the joints of the fuse 3 and the first and second high-voltage terminals 4 and 5 from two opposite side walls of the box body 8 at two sides of the fuse 3 respectively, so that high-voltage conduction among the fuse 3, the first and second high-voltage terminals 4 and 5 and the metal plate box body 8 is effectively isolated, the creepage distance is increased, the safety protection effect is achieved, and the electrical safety protection effect of the battery pack is improved; the mounting position of the high-voltage protective cover 2 can be selected according to the actual mounting position of the fuse 3.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.