CN216980668U - Pre-charging module, power distribution device with same, battery pack and vehicle - Google Patents
Pre-charging module, power distribution device with same, battery pack and vehicle Download PDFInfo
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- CN216980668U CN216980668U CN202220402658.5U CN202220402658U CN216980668U CN 216980668 U CN216980668 U CN 216980668U CN 202220402658 U CN202220402658 U CN 202220402658U CN 216980668 U CN216980668 U CN 216980668U
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Abstract
The utility model discloses a pre-charging module and a power distribution device, a battery pack and a vehicle with the same, wherein the pre-charging module comprises: the circuit board is provided with a pre-charging resistor interface and a pre-charging switch interface; the pre-charging resistor is provided with a first electric connection terminal, and the first electric connection terminal is in plug-in fit with the pre-charging resistor interface; the pre-charging switch is provided with a second electric connection terminal which is in plug-in fit with the pre-charging switch interface; the casing, inject in the casing and hold the chamber, the one side that holds the chamber is opened, pre-charge resistance with the pre-charge switch all establishes hold the intracavity, the circuit board is established hold the chamber one side. According to the pre-charging module, the risk of failure of the pre-charging module can be reduced, the service life of the pre-charging module is ensured, the assembly mode of the pre-charging module is simple, the cost of the work can be reduced, and therefore large-scale automatic production can be achieved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a pre-charging module, a power distribution device with the pre-charging module, a battery pack and a vehicle.
Background
In the related art, the various components in the pre-charging circuit of the battery pack are generally connected by using a wire harness and a connector. However, in the above connection method, since the wire harness is composed of a plurality of components, the connection is required for a plurality of times, so that the risk of failure of the pre-charging circuit is increased, and meanwhile, the pre-charging circuit is complex in assembly, high in tooling cost, complex in assembly process, and incapable of realizing mass automatic production.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a pre-charging module, which reduces the risk of failure of the pre-charging module, ensures the service life of the pre-charging module, has a simple assembly manner, and can reduce the cost of the tool, thereby realizing mass automatic production.
Another object of the present invention is to provide an electrical distribution apparatus using the pre-charging module.
Still another object of the present invention is to provide a battery pack using the above power distribution apparatus.
Still another object of the present invention is to provide a vehicle employing the above battery pack.
According to an embodiment of the first aspect of the present invention, a pre-charge module includes: the circuit board is provided with a pre-charging resistor interface and a pre-charging switch interface; the pre-charging resistor is provided with a first electric connection terminal, and the first electric connection terminal is in plug-in fit with the pre-charging resistor interface; the pre-charging switch is provided with a second electric connection terminal which is in plug-in fit with the pre-charging switch interface; the casing, inject in the casing and hold the chamber, the one side that holds the chamber is opened, pre-charge resistance with the pre-charge switch all establishes hold the intracavity, the circuit board is established hold the chamber one side.
According to the pre-charging module provided by the embodiment of the utility model, the first electric terminal of the pre-charging resistor is in plug-in fit with the pre-charging resistor interface of the circuit board, the second electric terminal of the pre-charging switch is in plug-in fit with the pre-charging switch interface of the circuit board, and the pre-charging resistor and the pre-charging switch are arranged in the accommodating cavity of the shell. Therefore, the risk of failure of the pre-charging module can be reduced, the service life of the pre-charging module is ensured, the assembly mode of the pre-charging module is simple, the work cost can be reduced, and mass automatic production can be realized.
According to some embodiments of the utility model, the pre-charged module further comprises: and the third electric connection terminal is connected between the pre-charging resistor and the pre-charging switch so as to realize the electric connection between the pre-charging resistor and the pre-charging switch.
According to some embodiments of the present invention, the pre-charge resistor and the pre-charge switch are arranged side by side, and the first electrical terminal, the second electrical terminal and the third electrical terminal are located on a side of the pre-charge resistor and the pre-charge switch adjacent to the circuit board.
According to some embodiments of the utility model, the third electrical terminal is located between the first electrical terminal and the second electrical terminal.
According to some embodiments of the present invention, the first and second electrical terminals are each perforated on the circuit board, and the third electrical terminal is located on a side of the circuit board adjacent to the pre-charge resistor and the pre-charge switch.
According to some embodiments of the utility model, the pre-charging resistor and the pre-charging switch are fixed in the accommodating cavity in a filling mode.
According to some embodiments of the utility model, a partition is disposed in the housing, the partition divides the accommodating chamber into a first accommodating chamber and a second accommodating chamber, the pre-charging resistor is disposed in the first accommodating chamber, and the pre-charging switch is disposed in the second accommodating chamber.
According to some embodiments of the present invention, at least one heat dissipation groove is disposed on the housing, and the heat dissipation groove is opposite to the pre-charging resistor.
An electrical distribution apparatus according to an embodiment of the second aspect of the present invention includes the pre-charging module according to the embodiment of the first aspect of the present invention.
A battery pack according to an embodiment of the third aspect of the utility model comprises a power distribution device according to an embodiment of the second aspect of the utility model described above.
A vehicle according to an embodiment of a fourth aspect of the utility model includes the battery pack according to the embodiment of the third aspect of the utility model described above.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a pre-fill module according to an embodiment of the utility model;
FIG. 2 is an exploded view of the pre-fill module shown in FIG. 1;
FIG. 3 is a circuit schematic of a pre-charge module according to an embodiment of the utility model.
Reference numerals:
100: a pre-charging module;
1: a circuit board; 11: a pre-charge resistor interface; 12: a pre-charge switch interface;
2: pre-charging a resistor; 21: pre-charging the resistor body; 22: a first electrical terminal;
3: a pre-charging switch; 31: a pre-charging switch body; 32: a second electrical terminal;
4: a housing; 41: a heat sink; 5: and a third electric terminal.
Detailed Description
A pre-charge module 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-3.
As shown in fig. 1 to 3, a pre-charging module 100 according to an embodiment of the first aspect of the present invention includes a circuit board 1, a pre-charging resistor 2, a pre-charging switch 3, and a housing 4.
Specifically, the circuit board 1 is provided with a pre-charging resistor interface 11 and a pre-charging switch interface 12, the pre-charging resistor 2 is provided with a first electrical connection terminal 22, the first electrical connection terminal 22 is in plug-in fit with the pre-charging resistor interface 11, the pre-charging switch 3 is provided with a second electrical connection terminal 32, and the second electrical connection terminal 32 is in plug-in fit with the pre-charging switch interface 12. The chamber is held in injecing in the casing 4, and the one side of holding the chamber is opened, and pre-charge resistance 2 and pre-charge switch 3 all establish and hold the intracavity, and circuit board 1 establishes in the above-mentioned one side of holding the chamber.
For example, in the example of fig. 1 and 2, the circuit board 1 may be provided with one pre-charge resistor interface 11 and three pre-charge switch interfaces 12, the pre-charge resistor interface 11 is provided at one end of the circuit board 1 in the length direction, and the three pre-charge switch interfaces 12 are provided at the other end of the circuit board 1 in the length direction. The pre-charging resistor 2 may include a pre-charging resistor body 21, the first electrical terminal 22 directly extends from the pre-charging resistor body 21, and the first electrical terminal 22 is plugged into the pre-charging resistor interface 11 to electrically connect with the circuit board 1. The pre-charging switch 3 may include a pre-charging switch body 31 and three second electrical connection terminals 32, each second electrical connection terminal 32 directly extends from the pre-charging switch body 31, and the three second electrical connection terminals 32 are respectively inserted into the three pre-charging switch interfaces 12 to achieve electrical connection with the circuit board 1.
From this, compare with traditional connected mode in advance the return circuit, realized switching on of pre-charge resistance 2 and pre-charge switch 3 and the high-pressure pre-charge circuit return circuit and the low pressure communication return circuit of circuit board 1 through the grafting mode, saved pencil and plug connector to can reduce the risk that pre-charge module 100 became invalid, guarantee the life of pre-charge module 100, pre-charge module 100's assembly mode is simple simultaneously, can reduce the cost of worker, and can realize big automated production in batches.
The pre-charging resistor 2 and the pre-charging switch 3 are arranged in the accommodating cavity of the housing 4, and the circuit board 1 is arranged at the open side of the housing 4, so that the structure of the pre-charging module 100 can be more compact, and the integration level of the pre-charging module 100 is improved.
According to the pre-charging module 100 of the embodiment of the utility model, the first electrical terminal 22 of the pre-charging resistor 2 is in plug-in fit with the pre-charging resistor interface 11 of the circuit board 1, the second electrical terminal 32 of the pre-charging switch 3 is in plug-in fit with the pre-charging switch interface 12 of the circuit board 1, and the pre-charging resistor 2 and the pre-charging switch 3 are arranged in the accommodating cavity of the housing 4. Therefore, the risk of failure of the pre-charging module 100 can be reduced, the service life of the pre-charging module 100 is ensured, the assembly mode of the pre-charging module 100 is simple, the cost of the work can be reduced, and the mass automatic production can be realized.
According to some embodiments of the present invention, referring to fig. 1 and 2, the pre-charge module 100 further includes a third electrical terminal 5, the third electrical terminal 5 being connected between the pre-charge resistor 2 and the pre-charge switch 3 to achieve an electrical connection between the pre-charge resistor 2 and the pre-charge switch 3. Therefore, the connection mode of the pre-charging resistor 2 and the pre-charging switch 3 is simple, the cost can be further reduced, and the assembly efficiency of the pre-charging module 100 is improved.
Further, the pre-charge resistor 2 and the pre-charge switch 3 are arranged side by side. For example, in the example of fig. 1 and 2, the pre-charge resistor 2 and the pre-charge switch 3 may be arranged along the length direction of the housing 4 (e.g., the left-right direction in fig. 1), and the internal space of the housing 4 may be effectively utilized, so that the structure of the pre-charge module 100 may be more compact. The first to third electrical terminals 22, 32 and 5 are located at one side of the pre-charge resistor 2 and the pre-charge switch 3 adjacent to the circuit board 1. Thus, the lengths of the first, second and third electrical terminals 22, 32 and 5 can be shortened, so that the amount of material used for the electrical terminals (i.e., the first, second and third electrical terminals 22, 32 and 5) can be reduced, thereby further reducing the cost.
In some alternative embodiments, the third electrical terminal 5 is located between the first electrical terminal 22 and the second electrical terminal 32. Referring to fig. 1 and 2, the first electrical terminal 22, the third electrical terminal 5 and the second electrical terminal 32 may be spaced apart from each other along the length of the housing 4 to avoid interference between the electrical terminals when installed.
According to some embodiments of the present invention, the first and second electrical terminals 22 and 32 are both disposed through the circuit board 1, and the third electrical terminal 5 is located on a side of the circuit board 1 adjacent to the pre-charge resistor 2 and the pre-charge switch 3. As shown in fig. 1 and 2, the height of the first electrical terminals 22 is the same as the height of the second electrical terminals 32 along the height direction of the housing 4 (e.g., the up-down direction in fig. 1), and the height of the third electrical terminals 5 is smaller than the height of the first electrical terminals 22, so that a certain gap exists between the third electrical terminals 5 and the circuit board 1 to prevent the third electrical terminals 5 from interfering with the circuit board 1 during installation.
According to some embodiments of the present invention, the pre-charging resistor 2 and the pre-charging switch 3 are fixed in the accommodating chamber by filling. With such an arrangement, the pre-charging resistor 2 and the pre-charging switch 3 can be firmly installed in the accommodating cavity of the housing 4, and the pre-charging resistor 2 and the pre-charging switch 3 are prevented from falling off from the housing 4.
According to some embodiments of the present invention, a partition is disposed in the housing 4, the partition divides the accommodating chamber into a first accommodating chamber and a second accommodating chamber, the pre-charging resistor 2 is disposed in the first accommodating chamber, and the pre-charging switch 3 is disposed in the second accommodating chamber. Because the materials of the pre-charging resistor 2 and the pre-charging switch 3 are different, the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity, the pre-charging resistor 2 and the pre-charging switch 3 can be filled by adopting different filling materials, so that the pre-charging resistor 2 and the pre-charging switch 3 can be more firmly installed in the shell 4, and meanwhile, the partition plate can play a role in heat insulation, and heat transfer between the pre-charging resistor 2 and the pre-charging switch 3 is avoided.
According to some embodiments of the present invention, at least one heat dissipation groove 51 is formed on the housing 4, and the heat dissipation groove 51 is opposite to the pre-charging resistor 2. Referring to fig. 1, the heat dissipation grooves 51 may be disposed on a side of the housing 4 away from the circuit board 1, the number of the heat dissipation grooves 51 may be eight, the eight heat dissipation grooves 51 may be evenly spaced along a length direction of the housing 4, and each heat dissipation groove 51 may be formed by a portion of the housing 4 being recessed toward the circuit board 1. This can increase the heat radiation area of case 4, and allow heat generated by pre-charge resistor 2 to be radiated as quickly as possible.
Eight heat sinks 51 are shown in fig. 1 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solutions of the present application that the solution can be applied to other numbers of heat sinks 51, which also falls within the protection scope of the present invention.
Alternatively, each heat dissipation groove 51 may communicate with the housing chamber of the housing 4, and the heat dissipation efficiency of the pre-charge resistor 2 may be improved. Of course, each heat dissipation groove 51 may not be communicated with the accommodating cavity of the housing 4, so as to ensure the heat dissipation efficiency of the pre-charging resistor 2 and prevent the filling material from leaking when the pre-charging resistor 2 is filled.
Optionally, the circuit board 1 may be a PCB integrated board, or the circuit board 1 may also be a metal circuit embedded in a plastic board.
Alternatively, the pre-charge resistor 2 may be a power resistor or a thermistor. When the pre-charging resistor 2 is a power resistor, the resistance of the pre-charging resistor 2 can be between 20 ohm to 200 ohm, the temperature of the working environment is between 0 ℃ and 85 ℃, the pre-charging energy is less than 1500 joules, and the insulation voltage does not exceed 3000V. When the pre-charging resistor 2 is a thermistor, the thermistor can be a thermistor with Curie temperature above 85 ℃, the resistance value of the pre-charging resistor 2 can be between 20 ohms and 200 ohms, the temperature of the working environment is between 0 ℃ and 85 ℃, and the thermal capacity of the thermistor can meet the requirement that the thermistor cannot reach the Curie temperature under single pre-charging energy and multiple impacts at intervals.
An electrical distribution apparatus (not shown) according to an embodiment of the second aspect of the present invention includes the pre-charging module 100 according to the above-mentioned embodiment of the first aspect of the present invention.
According to the power distribution device provided by the embodiment of the utility model, by adopting the pre-charging module 100, the service life of the power distribution device can be prolonged, the cost of the power distribution device can be reduced, and meanwhile, the assembly efficiency of the power distribution device can be improved.
A battery pack (not shown) according to an embodiment of the third aspect of the utility model comprises a power distribution apparatus according to an embodiment of the second aspect of the utility model described above.
According to the battery pack provided by the embodiment of the utility model, by adopting the power distribution device, the service life of the battery pack can be prolonged, and the cost of the battery pack can be reduced.
A vehicle (not shown) according to a fourth aspect embodiment of the utility model includes the battery pack according to the above-described third aspect embodiment of the utility model.
According to the vehicle provided by the embodiment of the utility model, the battery pack is adopted, so that the cost of the vehicle can be reduced, and the market competitiveness of the vehicle is improved.
Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A pre-fill module, comprising:
the circuit board is provided with a pre-charging resistor interface and a pre-charging switch interface;
the pre-charging resistor is provided with a first electric connection terminal, and the first electric connection terminal is in plug-in fit with the pre-charging resistor interface;
the pre-charging switch is provided with a second electric connection terminal which is in plug-in fit with the pre-charging switch interface;
the casing, inject in the casing and hold the chamber, the one side that holds the chamber is opened, pre-charge resistance with the pre-charge switch all is established hold the intracavity, the circuit board is established hold the chamber one side.
2. The pre-fill module of claim 1, further comprising:
and the third electric connection terminal is connected between the pre-charging resistor and the pre-charging switch so as to realize the electric connection between the pre-charging resistor and the pre-charging switch.
3. A pre-charge module in accordance with claim 2, wherein said pre-charge resistor and said pre-charge switch are arranged side-by-side, and said first, second and third electrical terminals are located on a side of said pre-charge resistor and said pre-charge switch adjacent said circuit board.
4. A pre-charge module in accordance with claim 2, wherein said third electrical terminal is located between said first electrical terminal and said second electrical terminal.
5. A pre-charge module in accordance with claim 2, wherein said first and second electrical terminals are each disposed through said circuit board, and said third electrical terminal is located on a side of said circuit board adjacent said pre-charge resistor and said pre-charge switch.
6. A pre-fill module according to any of claims 1-5, wherein the pre-fill resistor and the pre-fill switch are potted within the receiving chamber.
7. The pre-fill module of any one of claims 1-5, wherein a partition is provided within the housing, the partition dividing the housing chamber into a first housing chamber and a second housing chamber, the pre-fill resistor being provided within the first housing chamber, and the pre-fill switch being provided within the second housing chamber.
8. A pre-charge module according to any one of claims 1 to 5, wherein at least one heat dissipating groove is provided on the casing, the heat dissipating groove being opposed to the pre-charge resistor.
9. An electrical distribution apparatus comprising a pre-charge module according to any of claims 1-8.
10. A battery pack, characterized in that it comprises a power distribution device according to claim 9.
11. A vehicle characterized by comprising the battery pack according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402658.5U CN216980668U (en) | 2022-02-25 | 2022-02-25 | Pre-charging module, power distribution device with same, battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402658.5U CN216980668U (en) | 2022-02-25 | 2022-02-25 | Pre-charging module, power distribution device with same, battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216980668U true CN216980668U (en) | 2022-07-15 |
Family
ID=82356021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220402658.5U Active CN216980668U (en) | 2022-02-25 | 2022-02-25 | Pre-charging module, power distribution device with same, battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216980668U (en) |
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2022
- 2022-02-25 CN CN202220402658.5U patent/CN216980668U/en active Active
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