CN109591727A - A kind of electric car block terminal - Google Patents
A kind of electric car block terminal Download PDFInfo
- Publication number
- CN109591727A CN109591727A CN201811372132.1A CN201811372132A CN109591727A CN 109591727 A CN109591727 A CN 109591727A CN 201811372132 A CN201811372132 A CN 201811372132A CN 109591727 A CN109591727 A CN 109591727A
- Authority
- CN
- China
- Prior art keywords
- relay
- pcb
- accommodation groove
- electric car
- major loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0239—Electronic boxes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The present embodiments relate to a kind of electric car block terminals, including upper housing, lower case, multiple relays and PCB, the upper housing is fixedly connected with the lower case, the multiple relay is fixedly mounted on the upper housing, the PCB is fixedly mounted in lower case, the upper housing has engraved structure, and the engraved structure that the connection terminal of the multiple relay passes through the upper housing is plugged on the corresponding connecting terminal of the PCB.The block terminal reduces installation and maintenance difficulty.
Description
Technical field
A kind of automobile technical field of the present invention, and in particular to electric car block terminal.
Background technique
With the continuous development of automotive engineering, the electrical equipment on automobile is more and more, especially new-energy automobile, to protect
Each electric appliance load electricity consumption on automobile is demonstrate,proved, block terminal is provided on automobile, the members such as relay, fuse is integrated in block terminal
Part, the power distribution of each electric appliance load and circuit protection control on automobile.
In the prior art, New-energy electric vehicle high voltage distribution box is all pure electric automobiles, plug-in hybrid vapour
The high-voltage electricity high current allocation unit PDU of vehicle, mostly continues to use the design concept of industrial high-tension distribution box, safety, reliability
It all can not meet the requirement of automobile with durability, and the problems such as that there are volumes is big, integrated level is low, assembly is complicated.Specifically, existing
High voltage distribution box uses bolt installing type relay, and installation and maintenance difficulty are big, and there are the wind that bolt torque decaying leads to overheat
Danger；Installation footprint is big, and space utilization rate is not high；Low voltage control and high-voltage acquisition use harness connection type, traditional harness
Cost of manufacture is high, and wiring difficulty is big, and arrangement harness cannot achieve automation technolo, and assembling production efficiency is low；Using conventional shunt
Device module carries out current sample, and shunt module internal resistance can be varied with temperature and be changed, current sample precision and current divider
Module internal resistance thermal stability is directly related, and shunt module temperature drift is big, causes current acquisition precision lower；Low current fuse one
As be mounted on inside high voltage distribution box, maintenance difficulty is larger.
Summary of the invention
It is mentioned to solve high voltage distribution box installation and the big technical problem of maintenance difficulty, the embodiment of the present invention in the prior art
A kind of electric car block terminal, including upper housing, lower case, multiple relays and PCB, the upper housing and the lower casing are gone out
Body is fixedly connected, and the multiple relay is fixedly mounted on the upper housing, and the PCB is fixedly mounted in lower case, institute
Upper housing is stated with engraved structure, the engraved structure that the connection terminal of the multiple relay passes through the upper housing is plugged on institute
It states on the corresponding connecting terminal of PCB.
Further, the PCB is the double-deck integrated morphology, including high pressure routing layer and low pressure routing layer；The high pressure cabling
Layer is used for high-voltage great-current current-carrying, external cell input can be connected by copper bar and load exports；The low pressure routing layer is used
It is transmitted in signal, signal transmission can be carried out by plate terminal adapter.
Further, the upper housing includes accommodation groove area, and there are multiple upper ends to open for the upper surface in the accommodation groove area
Relay accommodation groove, is respectively used to fixed the multiple relay of accommodating, and the engraved structure is arranged in each relay accommodation groove
Bottom, the shell of each relay accommodation groove and the multiple relay is engaged by clamping.
Further, the multiple relay includes major loop relay, trickle charge relay and preliminary filling relay.
Further, the block terminal further includes low current fuse and preliminary filling resistance, and the upper surface in the accommodation groove area is also
With the open low current fuse accommodation groove in upper end and precharge resistance accommodation groove, it is respectively used to accommodate the low current fuse
With preliminary filling resistance, the engraved structure is additionally arranged at the bottom of low current fuse accommodation groove and precharge resistance accommodation groove.
Further, the multiple relay includes major loop relay, trickle charge relay and preliminary filling relay；The small electricity
Flow fuse, major loop relay, trickle charge relay, preliminary filling relay and preliminary filling resistance connection terminal be blade inserting end
Son, blade inserting terminal structure in the form of sheets, the connecting terminal on the PCB are resilient clamping structure.
Further, clamping groove or blocked hole are offered on opposite two wall of each relay accommodation groove, it is the multiple
The shell of relay position corresponding with the clamping groove or blocked hole is provided with outwardly projecting buckle；Each relay
Device accommodation groove is provided with installation guide frame, and the shell of the multiple relay is provided with leads with the installation of each relay accommodation groove
To the corresponding guide frame of structure.
Further, the block terminal further includes major loop fuse, the first busbar connector, the second busbar connector and current divider mould
Block, the major loop fuse, the first busbar connector and the second busbar connector are fixedly mounted in lower case, and the PCB passes through copper bar
Major loop fuse is connected, major loop fuse is connect by the first busbar connector with shunt module, and shunt module can lead to
It crosses the second busbar connector and is connected to external cell；The upper housing further includes the upper cover region being connected with the accommodation groove area, it is described on
Cover region includes the recess portion of tabular upper cover and lower end opening downward, for covering the major loop fuse, the first remittance
Stream row, the second busbar connector and shunt module.
Further, the major loop relay connection of monitoring major loop relay connection terminal temperature is provided on the PCB
Terminal temperature sensor, and/or, the shunt module include current divider PCB and be arranged on current divider PCB for monitoring
The current divider temperature sensor of shunt module temperature.
Further, the copper bar is integrated on the pcb.
The embodiment of the present invention the utility model has the advantages that the preferred embodiment of the present invention propose electric car block terminal, using one
Formula PCB (printed circuit board) modularized design, improves the integrated level and reliability of product, and volume reduces, reduce assembly and
Maintenance difficulty can automate mass production；It avoids major loop relay from overheating risk, improves the precision of current acquisition,
Enhance overload-resistant load shock ability by force, improves the protection reliability that short trouble occurs.
Detailed description of the invention
Fig. 1 a is the electric car block terminal Structure explosion diagram that the embodiment of the present invention proposes；
Fig. 1 b is the electric car block terminal structural schematic diagram that the embodiment of the present invention proposes；
Fig. 1 c is the electric car block terminal assembling structure schematic diagram that the embodiment of the present invention proposes；
Fig. 2 is the PCB construction schematic diagram for the electric car block terminal that the embodiment of the present invention proposes；
Fig. 3 is the relay mounting structure schematic diagram for the electric car block terminal that the embodiment of the present invention proposes；
Fig. 4 is the low current fuse installation structure schematic diagram for the electric car block terminal that the embodiment of the present invention proposes；
Fig. 5 is the major loop relay connection terminal temperature sensor for the electric car block terminal that the embodiment of the present invention proposes
Mounting structure schematic diagram；
Fig. 6 is the shunt module structural schematic diagram for the electric car block terminal that the embodiment of the present invention proposes.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
The embodiment of the present invention proposes a kind of electric car block terminal, including upper housing, lower case, multiple relays and
PCB, the upper housing are fixedly connected with the lower case, and the multiple relay is fixedly mounted on the upper housing, described
PCB is fixedly mounted in lower case, and the upper housing has engraved structure, and the connection terminal of the multiple relay passes through described
The engraved structure of upper housing is plugged on the corresponding connecting terminal of the PCB.
Specifically, a- Fig. 6, the electric car block terminal include upper housing 1, lower case 2, low current fusing referring to Fig.1
Device 3, trickle charge relay 5, preliminary filling relay 6, preliminary filling resistance 7, PCB 8, major loop fuse 9, shunts major loop relay 4
Device module 10.
Upper housing 1 is fixedly connected with lower case 2, such as passes through the fixation that is spirally connected.
The major loop relay 4, trickle charge relay 5 and preliminary filling relay 6 are fixedly mounted on upper housing；It is described
PCB 8, major loop fuse 9, the first busbar connector 11 and the second busbar connector 12 are fixedly mounted on the upper surface of lower case, point
Stream 10 one end of device module is connected on the first busbar connector 11, and the other end is connected on the second busbar connector 12.The PCB 8 passes through copper
Row's connection major loop fuse 9, major loop fuse 9 are connect by the first busbar connector 11 with shunt module 10, current divider mould
Block 10 is connected by the second busbar connector 12 and external cell input.Preferably, the copper bar is integrated on the PCB 8.PCB8
For integrated copper bar compared with the connection of traditional hard copper bar, installation convenience saves space.
The upper housing 1 includes accommodation groove area interconnected and upper cover region.
With relay the accommodation groove M, each relay accommodation groove M that multiple upper ends are open on the upper surface in the accommodation groove area
It is respectively used to the fixed accommodating major loop relay 4, trickle charge relay 5 and preliminary filling relay 6.
The shell of each relay accommodation groove M and the major loop relay 4, trickle charge relay 5 and preliminary filling relay 6 can
It is engaged by clamping, for example, offering clamping groove or blocked hole 101, the master on opposite two wall of each relay accommodation groove M
The shell of circuit relay 4, trickle charge relay 5 and preliminary filling relay 6 position corresponding with the clamping groove or blocked hole 101
It installs and is equipped with outwardly projecting buckle 102.
Also open with upper end low current fuse accommodation groove 30 and preliminary filling resistance on the upper surface in the accommodation groove area
Accommodation groove 70 is respectively used to accommodating low current fuse and preliminary filling resistance 7.
The bottom of each relay accommodation groove, low current fuse accommodation groove 30 and precharge resistance accommodation groove 70 all has hollow out
Structure, the connection of the low current fuse 3, major loop relay 4, trickle charge relay 5, preliminary filling relay 6 and preliminary filling resistance 7
Terminal 100 is electrically connected by each engraved structure with connecting terminal 200 corresponding on the PCB 8.
Preferably, each relay accommodation groove M is provided with installation guide frame, the major loop relay 4, trickle charge after
The shell of electric appliance 5 and preliminary filling relay 6 is provided with guide frame corresponding with the installation guide frame of each relay accommodation groove M.
The upper cover region of the upper housing 1 includes the recess portion of tabular upper cover and lower end opening downward, for covering
The major loop fuse 9, the first busbar connector 11 and the second busbar connector 12.
The low current fuse 3, major loop relay 4, trickle charge relay 5, preliminary filling relay 6 and preliminary filling resistance 7
Connection terminal 100 and 200 plug connection of connecting terminal corresponding on the PCB 8.For example, the low current fuse 3, leading back
Road relay 4, trickle charge relay 5, preliminary filling relay 6 and preliminary filling resistance 7 connection terminal 100 be blade inserting terminal, it is described
Blade inserting terminal structure in the form of sheets, the connecting terminal 200 on the PCB 8 are resilient clamping structure, and each blade inserting terminal can be inserted
It connects on the PCB 8 on corresponding connecting terminal 200, is electrically connected to realize with the PCB 8.Low current fuse 7
Connection terminal is set as blade inserting terminal, it can be achieved that Fast Installation and replacement, and in the prior art, low current fuse is usually adopted
It is fixed by bolts to inside high voltage distribution box, maintenance difficulty is big, and there are torque decaying to cause contact resistance is excessive to cause for bolt
The risk of overheat.
Preferably, the PCB 8 is the double-deck integrated morphology, including high pressure routing layer 81 and low pressure routing layer 82, the height
It presses routing layer 81 to be used for high-voltage great-current current-carrying, external cell input is connected by copper bar and load exports, the low pressure cabling
Layer 82 is transmitted for signal, carries out signal transmission by plate terminal adapter, for example, externally output current sampling resistor signal.Phase
Than traditional harness arrangement mode, assembly efficiency is improved, reduces wrong line risk, it can be achieved that Automated assembly.
Preferably, it is provided with major loop relay connection terminal temperature sensor 80 on the PCB 8, is led back for monitoring
The temperature of the connection terminal of road relay 4, the temperature sensor 80 are preferably NTC temperature sensor.When BMS discovery temperature is different
Chang Shi and alarm can be avoided the overheat of major loop relay 4.
Preferably, the shunt module 10 includes current divider PCB 13 and the current divider being arranged on current divider PCB 13
Temperature sensor 13, preferably NTC temperature sensor.Shunt module surface temperature is monitored using temperature sensor 13, is shunted
The external output temperature resistance signal of device module 10, current sampling resistor signal, after BMS receives resistance signal, according to current divider
Module substrate TCR characteristic curve carries out temperature-compensating to the thermal resistance variation of the shunt module 10 of different temperatures, in conjunction with acquisition
Voltage-drop data, and then higher measurement accuracy is obtained, reduce the resistance value drift that temperature change generates.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of electric car block terminal, which is characterized in that including upper housing, lower case, multiple relays and PCB, it is described on
Shell is fixedly connected with the lower case, and the multiple relay is fixedly mounted on the upper housing, and the PCB is fixedly mounted
In lower case, the upper housing has engraved structure, and the connection terminal of the multiple relay passes through engraving for the upper housing
Hollow structure is plugged on the corresponding connecting terminal of the PCB.
2. electric car block terminal as described in claim 1, which is characterized in that the PCB is the double-deck integrated morphology, including height
Press routing layer and low pressure routing layer；The high pressure routing layer is used for high-voltage great-current current-carrying, can connect external electrical by copper bar
Pond input and load output；The low pressure routing layer is transmitted for signal, can carry out signal transmission by plate terminal adapter.
3. electric car block terminal as described in claim 1, which is characterized in that the upper housing includes accommodation groove area, described
The relay accommodation groove that the upper surface in accommodation groove area has multiple upper ends open is respectively used to fixed the multiple relay of accommodating
The bottom of each relay accommodation groove is arranged in device, the engraved structure, and each relay accommodation groove is outer with the multiple relay
Shell is engaged by clamping.
4. electric car block terminal as claimed in claim 3, which is characterized in that the multiple relay includes major loop relay
Device, trickle charge relay and preliminary filling relay.
5. electric car block terminal as claimed in claim 3, which is characterized in that the block terminal further includes low current fuse
The low current fuse accommodation groove and precharge capacitance-resistance for also having upper end open with preliminary filling resistance, the upper surface in the accommodation groove area
Slot is set, is respectively used to accommodate the low current fuse and preliminary filling resistance, the engraved structure is additionally arranged at low current fuse
The bottom of accommodation groove and precharge resistance accommodation groove.
6. electric car block terminal as claimed in claim 5, which is characterized in that the multiple relay includes major loop relay
Device, trickle charge relay and preliminary filling relay；The low current fuse, major loop relay, trickle charge relay, preliminary filling relay
Connection terminal with preliminary filling resistance is blade inserting terminal, blade inserting terminal structure in the form of sheets, the terminals on the PCB
Son is resilient clamping structure.
7. electric car block terminal as claimed in claim 3, which is characterized in that opposite two wall of each relay accommodation groove
On offer the clamping groove perhaps shell of the multiple relay of blocked hole position corresponding with the clamping groove or blocked hole
It installs and is equipped with outwardly projecting buckle；Each relay accommodation groove is provided with installation guide frame, the multiple relay
Shell is provided with guide frame corresponding with the installation guide frame of each relay accommodation groove.
8. the electric car block terminal as described in any one of claim 3 to 5, which is characterized in that the block terminal also wraps
Include major loop fuse, the first busbar connector, the second busbar connector and shunt module, the major loop fuse, the first busbar connector
It is fixedly mounted in lower case with the second busbar connector, the PCB connects major loop fuse by copper bar, and major loop fuse is logical
It crosses the first busbar connector to connect with shunt module, shunt module can be connected to external cell by the second busbar connector；It is described
Upper housing further includes the upper cover region being connected with the accommodation groove area, the upper cover region include tabular upper cover and downward under
Open recess portion is held, for covering the major loop fuse, the first busbar connector, the second busbar connector and shunt module.
9. electric car block terminal as claimed in claim 8, which is characterized in that be provided on the PCB monitoring major loop after
The major loop relay connection terminal temperature sensor of electric appliance connection terminal temperature, and/or, the shunt module includes shunting
Device PCB and the current divider temperature sensor for being used to monitor shunt module temperature being arranged on current divider PCB.
10. electric car block terminal as claimed in claim 8, which is characterized in that the copper bar is integrated on the pcb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372132.1A CN109591727B (en) | 2018-11-16 | 2018-11-16 | Electric automobile block terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372132.1A CN109591727B (en) | 2018-11-16 | 2018-11-16 | Electric automobile block terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109591727A true CN109591727A (en) | 2019-04-09 |
| CN109591727B CN109591727B (en) | 2021-02-19 |
Family
ID=65957779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811372132.1A Active CN109591727B (en) | 2018-11-16 | 2018-11-16 | Electric automobile block terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109591727B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459819A (en) * | 2019-06-12 | 2019-11-15 | 厦门宏发电力电器有限公司 | Relay without installation foot is capable of the control box and its assembly method of reliable location |
| CN110536572A (en) * | 2019-10-10 | 2019-12-03 | 北京普莱德新能源电池科技有限公司 | A kind of electrical appliance kit |
| CN110843702A (en) * | 2019-10-31 | 2020-02-28 | 武汉嘉晨汽车技术有限公司 | Novel PDU structure |
| CN112996243A (en) * | 2021-02-02 | 2021-06-18 | 昆山联滔电子有限公司 | Power distribution module |
| CN113517734A (en) * | 2021-05-10 | 2021-10-19 | 湖北亿纬动力有限公司 | Low-voltage distribution box and power battery system |
| CN113543535A (en) * | 2021-09-15 | 2021-10-22 | 深圳市鑫盈通达电子科技有限公司 | Circuit connection protector for new energy automobile |
| KR20220040296A (en) * | 2020-09-23 | 2022-03-30 | 주식회사 유라코퍼레이션 | Junction Block |
| CN114916177A (en) * | 2022-06-10 | 2022-08-16 | 广州小鹏汽车科技有限公司 | Distribution box and vehicle |
| WO2023116293A1 (en) * | 2021-12-20 | 2023-06-29 | 比亚迪股份有限公司 | Power distribution apparatus, battery pack and vehicle |
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| CN207530484U (en) * | 2017-12-12 | 2018-06-22 | 浙江钧创电子有限公司 | A kind of automobile-used safety box |
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| KR102450312B1 (en) | 2020-09-23 | 2022-10-04 | 주식회사 유라코퍼레이션 | Junction Block |
| CN112996243A (en) * | 2021-02-02 | 2021-06-18 | 昆山联滔电子有限公司 | Power distribution module |
| CN113517734A (en) * | 2021-05-10 | 2021-10-19 | 湖北亿纬动力有限公司 | Low-voltage distribution box and power battery system |
| CN113543535A (en) * | 2021-09-15 | 2021-10-22 | 深圳市鑫盈通达电子科技有限公司 | Circuit connection protector for new energy automobile |
| CN113543535B (en) * | 2021-09-15 | 2021-12-21 | 深圳市鑫盈通达电子科技有限公司 | Circuit connection protector for new energy automobile |
| WO2023116293A1 (en) * | 2021-12-20 | 2023-06-29 | 比亚迪股份有限公司 | Power distribution apparatus, battery pack and vehicle |
| CN114916177A (en) * | 2022-06-10 | 2022-08-16 | 广州小鹏汽车科技有限公司 | Distribution box and vehicle |
| CN114916177B (en) * | 2022-06-10 | 2023-10-31 | 广州小鹏汽车科技有限公司 | Distribution box and vehicle |
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