CN219927471U

CN219927471U - New energy high-voltage insurance module

Info

Publication number: CN219927471U
Application number: CN202321507568.3U
Authority: CN
Inventors: 金博杰; 杨振辉; 卢勇; 赵顺荣
Original assignee: Zhejiang Zhiwei Electronic Technology Co ltd
Current assignee: Zhejiang Zhiwei Electronic Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-10-31
Anticipated expiration: 2033-06-13

Abstract

The utility model provides a new energy high-voltage insurance module, which belongs to the technical field of new energy vehicle safety and comprises a shell, an insurance structure, a high-voltage connection structure and a signal transmission structure. The safety structure is arranged in the shell; the high-voltage connecting structure is electrically connected with the safety structure and is suitable for being connected with a high-voltage loop; the signal transmission structure is electrically connected with the safety structure and is suitable for receiving and transmitting a disconnection signal to the safety structure. According to the new energy high-voltage safety module provided by the utility model, when the condition that the high-voltage loop needs to be disconnected occurs, the signal transmission structure receives the disconnection signal, so that the inside of the safety structure is disconnected, namely the high-voltage loop is disconnected at the high-voltage connection structure, and the high-voltage loop is quickly powered down, so that the purpose of high-voltage power-off protection is achieved; and the new energy high-voltage insurance module has the advantages of compact overall structure, small volume, wide adaptability, long service life and the like.

Description

New energy high-voltage insurance module

Technical Field

The utility model relates to the technical field of safety of new energy vehicles, in particular to a new energy high-voltage insurance module.

Background

In recent years, the new energy vehicle industry has developed rapidly. The new energy vehicle uses the high-voltage battery module as a power source, and the high-voltage battery module supplies power to a high-voltage network system of the vehicle, so that the high-voltage electricity utilization safety of the new energy vehicle is also an important point in the research of the new energy vehicle. In special cases, especially in the event of a vehicle crash, how to safely and quickly shut off the high-voltage power is a problem to be overcome.

Disclosure of Invention

Therefore, the utility model aims to solve the problem of how to safely and rapidly cut off high-voltage electricity when a new energy vehicle collides in the prior art, thereby providing a new energy high-voltage insurance module.

In order to solve the problems, the utility model provides a new energy high-voltage insurance module which comprises a shell, an insurance structure, a high-voltage connection structure and a signal transmission structure. The safety structure is arranged in the shell; the high-voltage connecting structure is electrically connected with the safety structure and is suitable for being connected with a high-voltage loop; the signal transmission structure is electrically connected with the safety structure and is suitable for receiving and transmitting a disconnection signal to the safety structure.

Optionally, the signal transmission structure includes a low voltage connector disposed on the housing and a connection harness connecting the low voltage connector and the safety structure.

Optionally, the new energy high-voltage insurance module further comprises a fixing part, the fixing part is arranged in the shell, a wire fixing groove is formed in the fixing part, and the connecting wire harness is clamped in the wire fixing groove.

Optionally, the high-voltage connection structure comprises copper bars, two copper bars are arranged, first ends of the two copper bars are suitable for being connected with a high-voltage loop, and the safety structure is connected between second ends of the two copper bars.

Optionally, the high-voltage connection structure further comprises a connection part, the connection part is arranged on the shell, and the first ends of the two copper bars extend into the connection part.

Optionally, the first ends of the two copper bars are arranged in an inner layer in the connecting part.

Optionally, the new energy high-voltage insurance module further comprises an insulation base, wherein the insulation base is arranged in the shell, and the insulation base is connected with the insurance structure.

Optionally, an installation groove is formed in the insulating base, and the safety structure is clamped into the installation groove and is connected with the insulating base.

Optionally, the housing includes a shell and a cover, and the shell is detachably connected with the cover.

Optionally, the new energy high-voltage safety module further comprises a sealing element, and the sealing element is arranged at the joint of the shell and the cover body.

The utility model has the following advantages:

1. according to the new energy high-voltage safety module provided by the utility model, when the condition that the high-voltage loop needs to be disconnected occurs, the signal transmission structure receives the disconnection signal, so that the inside of the safety structure is disconnected, namely the high-voltage loop is disconnected at the high-voltage connection structure, and the high-voltage loop is quickly powered down, so that the purpose of high-voltage power-off protection is achieved; and the new energy high-voltage insurance module has the advantages of compact overall structure, small volume, wide adaptability, long service life and the like.

2. According to the new energy high-voltage safety module provided by the utility model, the fixing part and the wire fixing groove are arranged to fix and guide the connecting wire bundle.

3. According to the new energy high-voltage safety module provided by the utility model, the two copper bars are arranged in a stacked manner, so that the creepage distance can be further reduced on the premise of ensuring safety.

4. According to the new energy high-voltage safety module provided by the utility model, the sealing element is arranged, so that the sealing performance of the shell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 shows an overall structure explosion schematic diagram of a new energy high-voltage safety module provided by an embodiment of the utility model;

fig. 2 is a schematic top view of a part of a structure of a new energy high-voltage safety module according to an embodiment of the present utility model;

FIG. 3 shows a schematic overall structure of a housing provided by an embodiment of the present utility model;

FIG. 4 is a schematic view showing the overall structure of a high-voltage connection structure according to an embodiment of the present utility model;

fig. 5 shows a schematic diagram of a part of the structure of a new energy high-voltage safety module according to an embodiment of the present utility model.

Reference numerals illustrate:

10. a housing; 11. a housing; 111. a first mounting hole; 112. a second mounting hole; 12. a cover body; 20. a safety structure; 30. a high voltage connection structure; 31. a copper bar; 32. a connection part; 40. a signal transmission structure; 41. a low voltage connector; 42. connecting the wire harness; 50. a fixing part; 60. an insulating base; 61. a mounting groove; 70. and a seal.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

One specific embodiment of the new energy high voltage safety module shown in fig. 1 to 5 includes a housing 10, a safety structure 20, a high voltage connection structure 30, and a signal transmission structure 40. The safety structure 20 is arranged in the shell 10; the high-voltage connection structure 30 is electrically connected with the safety structure 20, and the high-voltage connection structure 30 is suitable for connecting a high-voltage loop; the signal transmission structure 40 is electrically connected to the safety structure 20, and the signal transmission structure 40 is adapted to receive and transmit a disconnection signal to the safety structure 20.

When the new energy high-voltage safety module of the embodiment is applied and the condition that the high-voltage loop needs to be disconnected occurs, the signal transmission structure 40 receives a disconnection signal to disconnect the inside of the safety structure 20, namely the high-voltage loop is disconnected at the high-voltage connection structure 30, and the high-voltage loop is quickly powered down, so that the purpose of high-voltage power-off protection is achieved; and the new energy high-voltage insurance module has the advantages of compact overall structure, small volume, wide adaptability, long service life and the like.

In particular, the new energy high-voltage safety module is a separate component located under the hood of the vehicle. When the new energy high-voltage safety module is installed on a vehicle, the signal transmission structure 40 feeds back the received signal to the new energy high-voltage safety module when the vehicle collides, so that the inside of the safety structure 20 is disconnected, a high-voltage loop is disconnected at the high-voltage connection structure 30, and the high-voltage loop is quickly powered down.

Specifically, the safety structure 20 is a smart fuse.

Of course, in other alternative embodiments, the signal transmission structure 40 of the new energy high voltage safety module may also receive other dangerous electrical signals, so as to power down the high voltage circuit.

In the present embodiment, as shown in fig. 1 and 2, the signal transmission structure 40 includes a low-voltage connector 41 and a connection harness 42, the low-voltage connector 41 being provided on the housing 10, the connection harness 42 connecting the low-voltage connector 41 and the safety structure 20.

In this embodiment, as shown in fig. 1, the new energy high voltage safety module further includes a fixing portion 50, the fixing portion 50 is disposed in the housing 10, a wire fixing slot is formed in the fixing portion 50, and the connection harness 42 is clamped into the wire fixing slot.

By providing the fixing portion 50 and the wire fixing groove, the connection harness 42 is fixed and guided.

In this embodiment, as shown in fig. 1, 2 and 4, the high voltage connection structure 30 includes two copper bars 31, the copper bars 31 are provided with two first ends adapted to connect to a high voltage circuit, and the safety structure 20 is connected between the second ends of the two copper bars 31.

Specifically, the copper bar 31 is 17mm wide and 2.5mm thick, ensuring that current can be effectively conducted at 120A current at high voltage without severe heating.

Note that, the copper bar 31 is manufactured by stamping, so that the regular arrangement of the conductive paths is effectively ensured.

Specifically, referring to fig. 2, the copper bar 31 and the safety structure 20 are fastened by bolts, so that the reliability of the connection between the safety structure 20 and the copper bar 31 can be effectively ensured during the use of the product.

In this embodiment, as shown in fig. 1 and 4, the high voltage connection structure 30 further includes a connection portion 32, the connection portion 32 is disposed on the housing 10, and first ends of the two copper bars 31 extend into the connection portion 32.

Specifically, the connection portion 32 is similar to a high-voltage connector, so that the first ends of the two copper bars 31 extend into the high-voltage connector to replace the terminals of the high-voltage connector, thereby effectively improving the trouble of the design space.

In the present embodiment, as shown in fig. 4, the first ends of the two copper bars 31 are stacked in the connecting portion 32.

It should be noted that, the two copper bars 31 are stacked, so that the creepage distance can be further reduced under the premise of ensuring safety.

In this embodiment, as shown in fig. 1 and 5, the new energy high voltage safety module further includes an insulation base 60, the insulation base 60 is disposed in the housing 10, and the insulation base 60 is connected with the safety structure 20.

Specifically, the insulating base 60 is connected to the housing 10 by bolts.

Of course, in other alternative embodiments, other connection methods, such as clamping, bonding, etc., may be used for the insulating base 60 and the housing 10.

Specifically, the fixing portion 50 is disposed on the insulating base 60.

It should be noted that the fixing portion 50 and the insulating base 60 may be integrally formed.

In this embodiment, as shown in fig. 1, the insulating base 60 is provided with a mounting groove 61, and the safety structure 20 is locked into the mounting groove 61 and connected to the insulating base 60.

In the present embodiment, as shown in fig. 1 and 3, the housing 10 includes a case 11 and a cover 12, and the case 11 is detachably connected to the cover 12.

Specifically, the housing 11 is bolted to the cover 12.

It should be noted that, the casing 10 is made of aluminum material, which not only satisfies the light weight of the product, but also has the characteristics of excellent structural strength, good heat dissipation, strong corrosion resistance and the like.

Specifically, the housing 11 is provided with a first mounting hole 111 and a second mounting hole 112, the low-voltage connector 41 is mounted in the first mounting hole 111, and the connection portion 32 is mounted in the second mounting hole 112.

In this embodiment, as shown in fig. 1, the new energy high-voltage safety module further includes a sealing member 70, where the sealing member 70 is disposed corresponding to the connection between the housing 11 and the cover 12.

Specifically, a fixing groove is formed in the housing 11, one side of the seal member 70 is engaged in the fixing groove, and the cover 12 abuts against the other side of the seal member 70 to press the seal member 70.

Of course, in other alternative embodiments, the fixing groove may be formed in the cover 12.

Specifically, the seal 70 is a seal ring.

It is worth to say that the sealing ring is used for being installed with the shell 10, so that the overall tightness of the new energy high-voltage safety module is guaranteed, and the new energy high-voltage safety module reaches the IP67 protection level.

By applying the new energy high-voltage safety module of the embodiment, a high-voltage connecting structure 30 is used for opposite insertion in a high-voltage loop, and then the safety structure 20 is connected into the high-voltage loop through two copper bars 31; the safety structure 20 is connected to a low-pressure connector 41 via a connection harness 42, and the low-pressure connector 41 is connected to a vehicle collision sensor to form a low-pressure control circuit. When a vehicle collides, a collision signal is received through the low voltage connector 41, and the received signal is fed back to the safety structure 20 by using the connection harness 42, so that the inside of the safety structure 20 is disconnected, that is, a high voltage circuit is disconnected at the high voltage connection structure 30, and the high voltage circuit is rapidly powered down.

According to the above description, the present patent application has the following advantages:

1. when a high-voltage open circuit occurs, a signal is received through the signal transmission structure, so that the inside of the safety structure is disconnected, namely, a high-voltage loop is disconnected at the high-voltage connection structure, and the high-voltage loop is quickly powered down, so that the aim of high-voltage power-off protection is fulfilled; and the new energy high-voltage insurance module has the advantages of compact overall structure, small volume, wide adaptability, long service life and the like.

2. Through setting up fixed part and gu wire casing, played fixed and direction effect to the connecting wire bundle.

3. The two copper bars are arranged in a stacked mode, so that the creepage distance can be further shortened on the premise of ensuring safety.

4. The seal improves the tightness of the housing.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A new energy high voltage insurance module, comprising:

a housing (10);

a safety structure (20) disposed within the housing (10);

a high voltage connection structure (30) electrically connected to the safety structure (20), the high voltage connection structure (30) being adapted to connect a high voltage circuit;

and a signal transmission structure (40) electrically connected with the safety structure (20), wherein the signal transmission structure (40) is suitable for receiving and transmitting a disconnection signal to the safety structure (20).

2. The new energy high voltage safety module according to claim 1, wherein the signal transmission structure (40) comprises a low voltage connector (41) and a connection harness (42), the low voltage connector (41) being provided on the housing (10), the connection harness (42) connecting the low voltage connector (41) and the safety structure (20).

3. The new energy high-voltage safety module according to claim 2, further comprising a fixing portion (50), wherein the fixing portion (50) is disposed in the housing (10), a wire fixing groove is formed in the fixing portion (50), and the connecting wire harness (42) is clamped into the wire fixing groove.

4. A new energy high voltage safety module according to any of claims 1-3, characterized in that the high voltage connection structure (30) comprises copper bars (31), the copper bars (31) are provided with two, the first ends of the two copper bars (31) are adapted to be connected to a high voltage circuit, and the safety structure (20) is connected between the second ends of the two copper bars (31).

5. The new energy high-voltage safety module according to claim 4, wherein the high-voltage connection structure (30) further comprises a connection portion (32), the connection portion (32) is disposed on the housing (10), and first ends of the two copper bars (31) extend into the connection portion (32).

6. The new energy high voltage safety module according to claim 5, characterized in that the first ends of two copper bars (31) are arranged inside the connection (32).

7. A new energy high voltage safety module according to any one of claims 1-3, further comprising an insulating base (60), said insulating base (60) being arranged in said housing (10), said insulating base (60) being connected to said safety structure (20).

8. The new energy high voltage safety module according to claim 7, wherein the insulating base (60) is provided with a mounting groove (61), and the safety structure (20) is clamped into the mounting groove (61) and connected with the insulating base (60).

9. A new energy high voltage safety module according to any of claims 1-3, characterized in that the housing (10) comprises a casing (11) and a cover (12), the casing (11) being detachably connected to the cover (12).

10. The new energy high-voltage safety module according to claim 9, further comprising a sealing member (70), wherein the sealing member (70) is disposed corresponding to a junction of the housing (11) and the cover (12).