CN213026361U - Power battery module and distribution box - Google Patents
Power battery module and distribution box Download PDFInfo
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- CN213026361U CN213026361U CN202021291809.1U CN202021291809U CN213026361U CN 213026361 U CN213026361 U CN 213026361U CN 202021291809 U CN202021291809 U CN 202021291809U CN 213026361 U CN213026361 U CN 213026361U
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- box body
- distribution box
- circuit module
- end plate
- box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a power battery field discloses a power battery module and block terminal. The distribution box includes: uncovered formula box body, comprising a base plate, and the end plate of perpendicular to bottom plate, at the bottom plate, and form open-top's space between the end plate, first space in the space, be provided with control circuit module in the second space respectively, voltage output circuit module, control circuit module is connected with voltage output circuit module electricity, be used for control voltage output circuit module, first space, predetermined clearance has between the second space, at the preceding end plate of box body, and/or be provided with on the back end plate and stretch out an at least first plug connection interface outside the box body, an at least second plug connection interface, first plug connection interface is connected with control circuit module electricity, second plug connection interface is connected with voltage output circuit module electricity.
Description
Technical Field
The utility model relates to a power battery field discloses a power battery module and block terminal.
Background
With the development of the times, the technology of new energy automobiles is gradually mature, and new energy automobiles mainly comprising lithium batteries are produced in large quantities. The lithium ion power battery has the advantages of high storage energy density, long service life, high rated voltage, high power bearing capacity, low self-discharge rate, environmental protection, no matter production, use or scrapping, no toxic and harmful heavy metal elements and substances such as lead, mercury, cadmium and the like are generated, and consumers also gradually accept new energy automobiles mainly comprising lithium batteries.
However, the lithium battery system of the new energy automobile mainly comprises a control circuit part and an output circuit part, wherein the output circuit part is a high-voltage part, and the voltage of the output circuit part is generally more than 60V to hundreds of volts or even more than kilovolts. At present, a high-voltage output circuit part is generally packaged in a high-voltage box and arranged outside a power battery, and the problem of low cost and energy density exists in the prior art.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a distribution box, its integrated density is high, and it is convenient to maintain the dismouting.
The second objective of the embodiment of the present invention is to provide a power battery module integrated with the above-mentioned distribution box, which is favorable for improving the energy density of the space. Is convenient for maintenance and disassembly.
In a first aspect, an embodiment of the present invention provides a distribution box, including: the open type box body comprises a bottom plate and an end plate vertical to the bottom plate, a space with an opening at the top is formed between the bottom plate and the end plate,
a control circuit module and a voltage output circuit module are respectively arranged in a first space and a second space in the space, the control circuit module is electrically connected with the voltage output circuit module and is used for controlling the voltage output circuit module, a preset gap is formed between the first space and the second space,
the front end plate and/or the rear end plate of the box body are/is provided with at least one first plug-in connection interface and at least one second plug-in connection interface which extend out of the box body, the first plug-in connection interface is electrically connected with the control circuit module, and the second plug-in connection interface is electrically connected with the voltage output circuit module.
Optionally, the operating voltage of the control circuit module is an a-level voltage, and the output voltage of the voltage output circuit module is a B-level voltage.
Optionally, a sealing tape having the same length as the top edge is fixed on the top edge of at least one of the end plates of the box body.
Optionally, a groove extending along the top edge is provided on the top edge of the end plate, the sealing tape is embedded in the groove, and the tops of the sealing tape are respectively higher than the groove.
Optionally, the sealing strip is bonded to the top edge of the end plate.
The second aspect, the embodiment of the utility model provides a power battery module, include:
the box body is provided with a plurality of air inlets,
the battery module body is packaged in the box body;
the power distribution box of any one of the above, the power distribution box is installed in the box, control circuit module in the power distribution box with battery module body electricity is connected, controls the charge-discharge of battery module body, voltage output circuit module in the power distribution box with battery module electricity is connected, will the voltage of battery module body converts the required voltage of each part of power equipment into, supplies power to the outside.
Alternatively, the distribution box may be pushed into the box body or pulled out of the box body.
Optionally, the bottom plate of the distribution box is mounted on the top of a layer plate of the box body, a guide rail and a sliding part are respectively fixed on the bottom of the bottom plate of the distribution box and the top surface of the layer plate of the box body,
when the distribution box in the box body is pulled out and the distribution box is pushed inwards in the box body, the sliding piece slides along the guide rail.
Optionally, the left end plate and the right end plate of the distribution box are respectively fixed between the left side plate and the right side plate of the box body, a guide rail and a sliding piece matched with the guide rail are respectively fixed between the left end plate and the left side plate of the distribution box and between the right end plate and the right side plate of the distribution box,
when the distribution box in the box body is pulled out and pushed inwards in the box body, each sliding piece slides along the guide rail corresponding to the sliding piece.
Optionally, a sealing strip which is as long as the top edge is fixed on the top edge of at least one end plate of the box body;
when the distribution box is positioned in the box body, the sealing belt is limited between the distribution box and the box body in a compression shape, and the distribution box can be pushed into the box body or pulled out of the box body.
It can be seen from above that, control circuit module, the voltage output circuit module of this embodiment block terminal are at the circuit and spaced interval, the very big work load of convenient debugging and later stage fault handling. Meanwhile, the high-voltage and low-voltage sub-regions are installed to form an independent space region, so that the trend of the wiring harness is facilitated, the problem of electromagnetic interference caused by a high-voltage component of the voltage output circuit module on the control circuit module is avoided, the electromagnetic interference is reduced, the heat dissipation effect is improved, and the modular assembly is stable and reliable. And set up the first plug interface that is located the box body outside, second plug interface respectively on the front end board of block terminal and/or the back end board, can connect the interface with the quick of external connection well when using the butt joint, stable contact simultaneously.
Drawings
Fig. 1 is a schematic top view of a distribution box provided in embodiment 1 of the present invention.
Reference numerals:
1: a control circuit module; 2: a voltage output circuit module; 3: a box body;
4: a second plug connection interface; 5: the first plug-in connection interface.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
Example 1:
as shown in fig. 1.
The present embodiment provides a distribution box, which includes: the device comprises an open type box body 3, a control circuit module 1, a voltage output circuit module 2, a first plug connection interface 5 and a second plug connection interface 4.
The open box 3 is preferably a square box 3, but may be other shapes, such as the square box 3.
The open box 3 includes: including the bottom plate and connect four end plates on the four sides perpendicular to bottom plate on floor, write for front end plate, back end plate, left end plate and right end plate respectively, enclose into an open-top's space between bottom plate and end plate, be provided with control circuit module 1, voltage output circuit module 2 in this space.
The control circuit module 1 mainly includes a Battery Management System (BMS) motherboard and a control peripheral circuit. The working voltage of the control circuit module 1 is a class a direct current voltage, and is a low-voltage circuit, which is also called a weak current circuit. The control circuit module 1 is electrically connected to the voltage output circuit module 2, and outputs a control signal to the voltage output circuit according to the input sampling signal such as voltage, current, temperature, etc., so as to control the operation of the voltage output circuit module 2.
The A-level voltage is defined in BG/T18384.3-2-2015, and the maximum direct-current working voltage is less than or equal to 60V.
The voltage output circuit module 2 mainly converts the power battery into the voltage required by the current power equipment, and outputs the voltage externally, and mainly comprises a relay, a fuse, a voltage conversion circuit and the like. The working voltage of the control circuit module 1 is a class B voltage, and is a high-voltage circuit, also commonly called a strong current circuit.
The B-level voltage is B-level direct-current voltage specified in BG/T18384.3-2-2015, and the maximum direct-current working voltage is greater than 60V and less than or equal to 1500V.
In this embodiment, the low-voltage control circuit module 1 is concentrated in one area of the box body 3 and is referred to as a low-voltage distribution area, the high-voltage output circuit module 2 is concentrated in another area of the box body 3 and is referred to as a high-voltage distribution area, a gap is formed between the low-voltage distribution area and the high-voltage distribution area, and the width of the gap is greater than or equal to a predetermined value, so that electromagnetic interference is reduced.
In this embodiment, the control circuit module 1 and the voltage output circuit module 2 may be, but are not limited to, respectively disposed on mutually independent circuit boards, and the control circuit module 1 is electrically connected to the voltage output circuit module 2 through a wire harness, so as to realize signal acquisition and control of the control circuit module 1 on the voltage output circuit module 2.
The control circuit module 1 and the voltage output circuit module 2 may also be, but not limited to, disposed on a circuit board together, and each is located in two areas of the circuit board, a certain gap is formed between the two areas, and the control circuit module 1 is electrically connected to the voltage output circuit module 2 through a trace in the circuit board, so as to achieve signal acquisition and control of the control circuit module 1 on the voltage output circuit module 2.
At least two plug-in connection interfaces are arranged on one or both of the front end plate and the rear end plate of the box body 3, wherein at least one plug-in connection interface is electrically connected with the control circuit module 1 in the box body 3, and at least the other plug-in connection interface is electrically connected with the voltage output circuit module 2 in the box body 3. For convenience of description, the plug interface electrically connected to the control circuit module 1 is denoted as a first plug interface, and the plug interface electrically connected to the voltage output circuit module 2 is denoted as a second plug interface. The number of the first plug interface and the number of the second plug interface are specifically set according to the application requirements of the current system, and may be one or multiple. When the connector is arranged, the connector can be arranged on one of the front end plate and the rear end plate according to the convenience of wiring and plugging of a user, the number of plugging pieces and the like, and the connector can also be arranged on the front end plate and the rear end plate respectively, and the connector is not limited specifically.
It can be seen from above that, control circuit module 1, the voltage output circuit module 2 of this embodiment block terminal are at the circuit and spaced apart, the very big work load of convenient debugging and later stage fault handling. Meanwhile, the high-voltage and low-voltage are installed in different regions to form an independent space region, so that the trend of a wiring harness is facilitated, the problem of electromagnetic interference caused by a high-voltage component of the voltage output circuit module 2 on the control circuit module 1 is avoided, the electromagnetic interference is reduced, the heat dissipation effect is improved, and the modular assembly is stable and reliable. And, set up first plug interface, the second plug interface that is located the box body 3 outside respectively on the front end board of block terminal, and/or the back end board, can connect the interface with the quick of external connection well when using the butt joint, stable contact simultaneously.
The distribution box of this embodiment can be integrated to in the power battery module, this power battery module includes the box, and is located battery module body and distribution box in the box.
The battery module body is packaged in the box body and is commonly called a battery pack. The battery used by the method can be, but is not limited to, a fuel cell, a nickel-metal hydride battery or a lithium ion battery (preferably), and is respectively formed by connecting a plurality of single batteries in series or in parallel or a combination of series and parallel.
The assembly mode of the battery module body in the box body can be realized by adopting a technology, for example, but not limited to, the battery module body is inserted into a spacing structure (commonly called a box inserting structure) in the box body, and the heat dissipation effect of the battery is improved.
The distribution box and the battery module body of this embodiment are integrated in the box, and the control circuit module 1 in the distribution box is electrically connected with the battery module body to control the charging and discharging of the battery module body. The specific charge and discharge control method and the implementation circuit can refer to the prior art. The voltage output circuit module 2 is electrically connected with the battery module body, and converts the voltage of the battery module body into the voltage of the external device to supply current to the outside. The prior art can be referred to for specific voltage conversion methods and circuits.
The power distribution box is arranged to be horizontally pulled out of the box body along the box body, and also can be horizontally pushed into a drawer type structure in the box body, so that the power distribution box can be pulled out at any time during maintenance, circuits in the power distribution box are maintained and replaced, and quick overhaul is achieved.
As an illustration of the present embodiment, the present embodiment further provides a mounting structure of a distribution box and a box, the bottom plate of the mating box of the present embodiment is disposed on a layer board of the box, a matching guide rail and a sliding member are respectively fixed on opposite surfaces of the bottom plate of the distribution box and the layer board of the box therebelow, the sliding member is disposed on one of a bottom surface of the bottom plate of the distribution box and a top surface of the layer board of the box, and the guide rail is disposed on the other of the bottom surface of the bottom plate of the distribution box and the top surface of the layer board of the box. The direction of the guide rail is horizontal front and back direction, and the sliding part can move back and forth along the guide rail. When a user pulls out the distribution box from the box body or pushes the distribution box into the box body, the sliding piece moves back and forth along the guide rail.
In addition, the left end plate and the right end plate of the distribution box can be respectively fixed between the left side plate and the right side plate of the box body, and a guide rail and a sliding piece which are matched with each other are respectively fixed between the left end plate of the distribution box and the left side plate of the box body; in a similar way, a matched guide rail and a sliding part are also fixed between the right end plate of the distribution box and the right end plate of the box body. The working principle is that when the distribution box is pulled out from the box body in the horizontal direction or pushed into the box body, the two sliding pieces on the left and the right move along the guide rail where the sliding pieces are located respectively.
The sliding member may be a roller, but is not limited to a smooth-surfaced sliding block, or other prior art implementations.
As an illustration of the present embodiment, a sealing tape having the same length as the top edge of at least one end plate (such as, but not limited to, any one or a combination of two or more of the front end plate, the rear end plate, the left end plate, and the right end plate) of the box body 3 is fixed on the top edge, and when the distribution box is pushed into the box body, the sealing tape on the top edge of each end plate is compressively limited between the box body 3 and the box body, thereby improving the sealing property and moisture resistance of the distribution box.
Wherein the sealing strips may be bonded to the top edge of the end plate using, but not limited to, quick-dry glue. The sealing strip is embedded in the groove, so that the sealing strip is exposed out of the top of the groove, the distribution box is pushed into the box body, the sealing strip tightly abuts against the top plate of the box body, the sealing performance of the distribution box is improved, and the moisture-proof and dust-proof effects are improved. The technical scheme that the sealing strip is embedded in the groove is further beneficial to replacing the sealing strip when the sealing strip is aged.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. A distribution box, comprising: the open type box body comprises a bottom plate and an end plate vertical to the bottom plate, a space with an opening at the top is formed between the bottom plate and the end plate,
a control circuit module and a voltage output circuit module are respectively arranged in a first space and a second space in the space, the control circuit module is electrically connected with the voltage output circuit module and is used for controlling the voltage output circuit module, a preset gap is formed between the first space and the second space,
the front end plate and/or the rear end plate of the box body are/is provided with at least one first plug-in connection interface and at least one second plug-in connection interface which extend out of the box body, the first plug-in connection interface is electrically connected with the control circuit module, and the second plug-in connection interface is electrically connected with the voltage output circuit module.
2. A distribution box according to claim 1,
the working voltage of the control circuit module is A-level voltage, and the output voltage of the voltage output circuit module is B-level voltage.
3. A distribution box according to claim 1,
and a sealing strip which is as long as the top edge is fixed on the top edge of at least one end plate of the box body.
4. A distribution box according to claim 3,
the sealing strip is embedded in the groove, and the top of the sealing strip is higher than the groove respectively.
5. A distribution box according to claim 3,
the sealing strip is bonded to the top edge of the end plate.
6. The utility model provides a power battery module, characterized by includes:
the box body is provided with a plurality of air inlets,
the battery module body is packaged in the box body;
the distribution box of any one of claims 1 to 5, wherein the distribution box is installed in the box body, a control circuit module in the distribution box is electrically connected with the battery module body to control charging and discharging of the battery module body, and a voltage output circuit module in the distribution box is electrically connected with the battery module to convert the voltage of the battery module body into the voltage required by each component of power equipment to supply power to the outside.
7. The power battery module as claimed in claim 6, comprising:
the distribution box can be pushed into the box body or pulled out of the box body.
8. The power battery module as set forth in claim 7,
the bottom plate of the distribution box is arranged on the top of a layer plate of the box body, a guide rail and a sliding part are respectively fixed on the bottom of the bottom plate of the distribution box and the top surface of the layer plate of the box body,
when the distribution box in the box body is pulled out and the distribution box is pushed inwards in the box body, the sliding piece slides along the guide rail.
9. The power battery module as set forth in claim 7,
the left end plate and the right end plate of the distribution box are respectively fixed between the left side plate and the right side plate of the box body, a guide rail and a sliding part matched with the guide rail are respectively fixed between the left end plate and the left side plate of the distribution box and between the right end plate and the right side plate of the distribution box,
when the distribution box in the box body is pulled out and pushed inwards in the box body, each sliding piece slides along the guide rail corresponding to the sliding piece.
10. The power battery module as set forth in claim 9,
a sealing strip which is as long as the top edge is fixed on the top edge of at least one end plate of the box body;
when the distribution box is positioned in the box body, the sealing belt is limited between the distribution box and the box body in a compression shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291809.1U CN213026361U (en) | 2020-07-03 | 2020-07-03 | Power battery module and distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291809.1U CN213026361U (en) | 2020-07-03 | 2020-07-03 | Power battery module and distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213026361U true CN213026361U (en) | 2021-04-20 |
Family
ID=75500327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021291809.1U Active CN213026361U (en) | 2020-07-03 | 2020-07-03 | Power battery module and distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213026361U (en) |
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2020
- 2020-07-03 CN CN202021291809.1U patent/CN213026361U/en active Active
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