KR200489703Y1 - Disassemble device for case of battery disconnect unit - Google Patents

Disassemble device for case of battery disconnect unit Download PDF

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Publication number
KR200489703Y1
KR200489703Y1 KR2020150004416U KR20150004416U KR200489703Y1 KR 200489703 Y1 KR200489703 Y1 KR 200489703Y1 KR 2020150004416 U KR2020150004416 U KR 2020150004416U KR 20150004416 U KR20150004416 U KR 20150004416U KR 200489703 Y1 KR200489703 Y1 KR 200489703Y1
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KR
South Korea
Prior art keywords
battery
case
unit
separating means
separating
Prior art date
Application number
KR2020150004416U
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Korean (ko)
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KR20170000136U (en
Inventor
김재섭
Original Assignee
엘에스산전 주식회사
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Priority to KR2020150004416U priority Critical patent/KR200489703Y1/en
Publication of KR20170000136U publication Critical patent/KR20170000136U/en
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Publication of KR200489703Y1 publication Critical patent/KR200489703Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A case separating device of a battery disconnection unit (BDU) of the present invention is a battery separating unit used in an electric automobile, which uses separating means provided corresponding to snap-fits of an upper case And the upper case is detached from the lower case.
Accordingly, it is possible to shorten the time for separating the case of the battery cut-off unit, and to prevent the case from being broken.

Description

DISSEMBLE DEVICE FOR CASE OF BATTERY DISCONNECT UNIT

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case separating apparatus for a battery breaking unit, and more particularly, to a case separating apparatus for a battery breaking unit for stably supplying or disconnecting battery power to a power system of an electric vehicle.

An electric vehicle is an automobile that is driven by electricity, and can be broadly divided into a pure electric vehicle and a hybrid electric vehicle (HEV).

A pure electric vehicle means a vehicle that uses electricity only, and a hybrid electric vehicle means a vehicle that uses electricity and fossil fuel together.

The electric vehicle is provided with a battery for supplying electricity for running and a motor driven by electric energy supplied from the battery.

And, when an abnormal voltage is applied from the battery to the motor, a means for properly shutting off the motor is required.

A battery disconnection unit (BDU) is disposed between a battery and a motor, and is a component that serves to apply or cut off power supplied from a battery to an inverter provided in the motor. That is, the battery cutoff unit is positioned between the battery and the inverter to stably supply or cut off the battery power to the power system of the vehicle, and protects the power system of the vehicle when a fault current occurs.

1 is a perspective view schematically showing a battery blocking unit for a conventional electric vehicle.

1, a battery cut-off unit 10 for an electric vehicle includes an upper case 11, a lower case 12, an insulating plate (not shown) interposed between the upper case 11 and the lower case 12 .

A plurality of sockets 15, 16 and 17 are formed on the upper surface of the upper case 11. Each socket 15, 16 and 17 is provided with a main relay, a precharge relay, , A precharge resistor, a Y-capacitor, and a current sensor.

The upper case 11 and the lower case 12 are fastened with snap fits 13 provided in the upper case 11 inserted into the hooks 14 of the lower case 12.

As described above, the conventional battery disconnecting unit 10 for an electric vehicle can be easily fastened between the upper case 11 and the lower case 12 by tightening the snap-fit structure. However, after the service, It takes a long time to check the state of the inside of the rear cases 11 and 12, the state of the parts and replace the damaged parts.

FIGS. 2A to 2C are cross-sectional views sequentially showing a method of separating a case in a conventional battery disconnecting unit for an electric vehicle.

First, as shown in FIG. 2A, a tool such as a "-" child screwdriver 20 is inserted between the snap fit 13 and the lower case 12 to separate the cases 11, 12.

Thereafter, as shown in FIG. 2B, the snap foot 12 is pushed out by the "-" spindle driver 20 by the hook 14 or higher.

Then, as shown in Fig. 2C, the snap fit 12 is detached from the hook 14 and the upper case 11 is detached from the lower case 12. Fig.

As described above, in the related art, a plurality of snap pawls 12 of the upper case 11 are separated one by one with a tool such as a "-" screwdriver 20, and a portion caught by the hook 14 must be taken out. There is a possibility that the snap fit 12 is broken during disconnection.

It is an object of the present invention to provide a case separating apparatus for a battery cut-off unit for easily separating a case of a battery cut-off unit without breakage.

Other objects and features of the present invention will be described in the following description of the constitution and utility model registration claims.

According to an aspect of the present invention, there is provided an apparatus for separating a case of a battery cut-off unit, comprising: a lower part corresponding to a lower face of a lower case of a battery cut-off unit; At least one separating means provided on the lower side surface; And a guide pin provided at the lower edge.

At this time, the lower portion may have a rectangular shape corresponding to a lower surface of the lower case of the battery blocking unit.

The guide pin may be coupled to a fastener provided in a lower case of the battery shut-off unit.

The separating means may be provided at a position corresponding to the snap fit of the battery cut-off unit.

At this time, when the battery cut-off unit is seated on the case separating apparatus through the guide pin, the separating means can open the snap pits of the battery cut-off unit at the same time to be released from the hook.

At this time, the separating means may have a "U" shape in which an upper center corresponding to the hook of the battery blocking unit is open.

The separating means may be constituted by a guide portion having a shape of a blade that becomes thinner toward the upper portion and a coupling portion coupled to the lower side surface.

As described above, the case separating device of the battery cut-off unit according to an embodiment of the present invention is characterized in that the snap pits are simultaneously released from the hook using the separating means provided corresponding to the snap pits of the upper case .

Accordingly, it is possible to shorten the case separation time of the battery cut-off unit and to prevent the case from being broken.

1 is a perspective view schematically showing a battery blocking unit for a conventional electric vehicle;
FIGS. 2A to 2C are cross-sectional views sequentially showing a method of separating a case in a conventional battery disconnecting unit for an electric vehicle. FIG.
3 is a perspective view schematically showing a battery cut-off unit according to an embodiment of the present invention;
FIG. 4 is a perspective view illustrating a case separating apparatus of a battery cutoff unit according to an embodiment of the present invention.
5A to 5C are perspective views sequentially illustrating a method of separating a case in a battery cut-off unit according to an embodiment of the present invention.
6A to 6C are cross-sectional views sequentially showing a method of separating a case in a battery cut-off unit according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, To the person having the invention, and this invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of the layers and regions in the figures may be exaggerated for clarity of illustration.

It will be understood that when an element or layer is referred to as being another element or "on" or "on ", it includes both intervening layers or other elements in the middle, do. On the other hand, when a device is referred to as "directly on" or "directly above ", it does not intervene another device or layer in the middle.

The terms spatially relative, "below," "lower," "above," "upper," and the like, And may be used to easily describe the correlation with other elements or components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element. Thus, the exemplary term "below" can include both downward and upward directions.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprise "and / or" comprising ", as used in the specification, means that the presence of stated elements, Or additions.

3 is a perspective view schematically showing a battery cut-off unit according to an embodiment of the present invention.

4 is a perspective view showing an example of a case separating apparatus of a battery cut-off unit according to an embodiment of the present invention.

3, a battery cut-off unit 100 according to an embodiment of the present invention includes an upper case 111, a lower case 112, and an insulating plate (not shown) interposed between the upper case 111 and the lower case 112 Not shown).

The upper case 111 and the lower case 112 may each be made of a molded article.

The lower case 112 may be formed in a rectangular parallelepiped shape having an open top. The lower case 112 may be made of a molding resin composite, and may be manufactured by injection molding.

A plurality of sockets 115, 116, and 117 for coupling relays and resistors may be provided on the upper case 111.

A precharge relay, a precharge resistor, a Y capacitor, a current sensor, and the like may be provided in each of the sockets 115, 116, Parts can be mounted.

In this case, for example, terminal sockets 115, 116, and 117 may be provided with terminal through-holes through which terminals such as a main relay, a precharge relay, and a precharge resistor may be inserted.

The main relay serves to supply or cut off power between the battery and the motor. In addition, the precharge relay and the precharge resistor prevent the device from being damaged by the initial current.

In addition, the Y capacitor serves to remove the noise included in the current generated in the battery so that a stable current can be supplied to the inside of the vehicle. That is, it serves to remove the ripple current generated in the battery inside the vehicle, and is connected to the power line and the ground respectively.

The upper case 111 and the lower case 112 can be fastened with a snap-fit structure using an elastic restoring force, which is a plastic property.

That is, the snap fits 113 and the hooks 114 are provided on the edge sides of the upper case 111 and the lower case 112, respectively, and they can be coupled to each other by the fitting method.

Although not shown, one side of the battery cut-off unit 100 according to the embodiment of the present invention may be electrically connected to the high-voltage battery, and the other side may be connected to a vehicle driving device such as a motor through an inverter.

The battery cut-off unit 100 can be used as a form mounted on a battery pack (not shown).

The battery pack 100 may be fixed to the surface of the battery pack using bolts or the like through the fastener 118.

The fastener 118 may be provided at the edge of the lower case 112 of the battery shutoff unit 100.

The battery cut-off unit 100 according to an embodiment of the present invention configured as described above is configured to detect a state of the inside of the cases 111 and 112, And a case separating device 200 for separating the cases 111 and 112 of the battery 100 from each other without breakage.

4, the case-separating apparatus 200 according to the embodiment of the present invention may include at least one separating means 220 provided on a side surface of a flat lower portion 210 and an edge of a lower portion 210 have.

The lower portion 210 may have a substantially rectangular shape corresponding to the lower surface of the lower case 112 of the battery cut-off unit 100.

A guide pin 230 may be provided at an edge of the lower portion 210 to be fastened to a fastener 118 provided in the lower case 112 of the battery shutoff unit 100.

The guide pin 230 serves to align the positions of the snap pits 113 and the separating means 220 of the battery cut-off unit 100 when the battery cut-off unit 100 is seated on the case separating apparatus 200 do.

Each of the separating means 220 is provided at a position corresponding to the snap fit 113 of the battery cutoff unit 100 and may be provided at an edge side of the lower portion 210 through a screw 221, for example.

The separating means 220 may have an approximate "U" shape in which the upper center corresponding to the hook 114 of the battery cutoff unit 100 is open.

The separating means 220 includes a guiding portion 220a having a blade shape having a thickness decreasing toward the upper portion and a coupling portion 220c coupled to a side surface of the lower portion 210 of the battery- (220b). However, the present invention is not limited thereto.
More specifically, the separating means 220 includes a guide portion 220a having a slope 220a-1, which is thinner toward the upper portion thereof, and a guide portion 220b, which is coupled to a side surface of the lower portion 210, And a coupling portion 220b.
The separating means 220 may be formed with a groove portion 220c having a U-shaped opening with an upper center open. The groove portion 220c may be formed below the inclined portion 220a-1 Lt; / RTI >
4, protrusions may be formed on the edges of the lower portion 210 so as to protrude laterally, and the guide pins 230 may be positioned on the upper surface of the protrusions.
At this time, the guide pin 230 may be positioned outside the lower portion 210 rather than the separating means 220 when the guide pin 230 is positioned on the upper surface of the protrusion.
The lower portion 210 may be made of a plastic injection material, and the separating means 220 may be made of a metal material.

delete

The case separating apparatus 200 according to the embodiment of the present invention shortens the case separation time of the battery cut-off unit 100 by opening the snap pits 113 simultaneously from the hook 114 using the separating means 220 It is possible to prevent the case from being broken when it is separated.

5A to 5C are perspective views sequentially illustrating a method of separating a case in a battery cut-off unit according to an embodiment of the present invention.

6A to 6C are cross-sectional views sequentially illustrating a method of separating the case of the battery cut-off unit according to the embodiment of the present invention.

As shown in FIGS. 5A and 6A, the case separating apparatus 200 according to the embodiment of the present invention is arranged below the battery cut-off unit 100 in order to separate the cases 111 and 112.

Thereafter, while the guide pin 230 is fastened to the fastener 118 of the battery cut-off unit 100, the battery cut-off unit 100 is seated on the case separator 200.

5B and 6B, the battery cut-off unit 100 is pushed downward through the guide pin 230 so that the snap pits 113 of the battery cut-off unit 100 are separated from the case separator 200, By means of the separating means 220 of FIG.

Then, when the battery cut-off unit 100 is pushed to the bottom of the case separating apparatus 200, the hook 114 is pulled up as the snap pits 113 of the battery cut- .

Then, as shown in Figs. 5C and 6C, the snap fit 112 is detached from the hook 114 and the upper case 111 is easily separated from the lower case 112.

Accordingly, it is possible to shorten the case separation time of the battery cut-off unit and to prevent the case from being broken.

Although a number of matters have been specifically described in the above description, it should be interpreted as an example of a preferred embodiment rather than limiting the scope of the invention. Therefore, the design is not to be determined according to the embodiment described, but should be determined by the scope of claims for utility model registration and the scope of claims for utility model registration.

100: battery cut-off unit 111: upper case
112: Lower case 113: Snap fit
114: hook 118: fastener
200: case-separating device 210: lower
220: separating means 230: guide pin

Claims (8)

A lower portion corresponding to a lower surface of the lower case of the battery cut-off unit;
At least one separating means provided on the lower side surface; And
And a guide pin provided on the lower edge,
Wherein the separating means includes a guide portion formed with an inclined portion that becomes thinner toward the upper portion and a coupling portion coupled to the lower side surface and having the same horizontal width,
The separating means is formed with a groove portion having a "U" shape whose upper center is open,
And the groove portion is located below the inclined portion.
The apparatus of claim 1, wherein the guide pin is coupled to a fastener provided in a lower case of the battery cut-off unit. The apparatus of claim 1, wherein the separating means is provided at a position corresponding to the snap fit of the battery cut-off unit. The battery charging apparatus according to claim 3, wherein the separating means simultaneously opens and releases the snap pits of the battery disconnecting unit from the hook when the battery disconnecting unit is seated on the case separating apparatus through the guide pin. . The apparatus of claim 4, wherein the separating means has a U-shaped opening with an upper center corresponding to a hook of the battery blocking unit. delete The method according to claim 1,
A projecting portion is formed at the lower edge to protrude laterally,
And the guide pin is positioned on the upper surface of the protrusion.
8. The method of claim 7,
Wherein the guide pin is located on the outer side of the lower portion of the separating means when the guide pin is positioned on the upper surface of the protrusion.


KR2020150004416U 2015-07-01 2015-07-01 Disassemble device for case of battery disconnect unit KR200489703Y1 (en)

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Application Number Priority Date Filing Date Title
KR2020150004416U KR200489703Y1 (en) 2015-07-01 2015-07-01 Disassemble device for case of battery disconnect unit

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KR200489703Y1 true KR200489703Y1 (en) 2019-07-25

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Publication number Priority date Publication date Assignee Title
KR200494515Y1 (en) * 2017-03-28 2021-10-28 엘에스일렉트릭(주) Part removal tool
CN110611134A (en) * 2018-06-15 2019-12-24 中国科学院过程工程研究所 Lithium battery cutting pretreatment equipment
CN110277525A (en) * 2019-07-24 2019-09-24 常州普莱德新能源电池科技有限公司 A kind of general economy compatibility BDU and battery pack

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JPS6130320Y2 (en) * 1978-02-15 1986-09-05
KR200482394Y1 (en) * 2012-06-14 2017-01-18 엘에스산전 주식회사 Damper for battery disconnect unit
US9549474B2 (en) * 2012-07-16 2017-01-17 Thomson Licensing Cover removal fixture

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