KR20200016571A - Test board and test apparatus for testing battery - Google Patents

Abstract

According to one embodiment of the present invention, provided is a battery test board which comprises: a test device connection unit having a connection terminal connected to a battery test device; and a connector connection unit installed on one side of the test device connection unit and providing a pad-type connection terminal connected with a battery connector.

Description

Battery test board and test device {TEST BOARD AND TEST APPARATUS FOR TESTING BATTERY}

The present invention relates to a test board and a test apparatus for inspecting the performance of the battery.

Recently, as the demand for mobile terminals such as laptops, video cameras, portable phones, etc. is rapidly increasing, and development of energy storage batteries, robots, satellites, etc. is in earnest, researches on high-performance secondary batteries capable of repeatedly charging and discharging are actively conducted. It's going on.

Commercially available secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel-based secondary batteries, and thus are free of charge and discharge. It is attracting much attention because of its low self discharge rate and high energy density.

In addition, as carbon energy is gradually depleted and environmental concerns are increasing, the demand for hybrid and electric vehicles is increasing worldwide. Since hybrid vehicles or electric vehicles obtain driving power by using the charge / discharge energy of secondary batteries, they have a good response to many consumers in that they are more fuel-efficient than the engine-only vehicle and do not emit or reduce pollutants. Getting Therefore, more attention and research is being focused on the vehicle battery, which is a key component of a hybrid vehicle or an electric vehicle.

On the other hand, the secondary battery may vary the output characteristics according to the environmental conditions. That is, the output characteristics of the secondary battery may vary depending on the ambient temperature state, whether external shock or vibration is applied to the secondary battery, and the like. Therefore, it is necessary to confirm beforehand what output characteristics a secondary battery shows in the environmental conditions where a secondary battery is actually used. In addition, it is also necessary to verify whether the manufactured secondary battery exhibits an acceptable range of output under normal use conditions.

For example, the function of the secondary battery is tested by using a separate test board to check the rated voltage, rated current, resistance, and battery capacity of the secondary battery. That is, the FPCB connection terminal electrically connected to the secondary battery is electrically connected to the test board, and then electrical tests such as the rated voltage, rated current, resistance, and battery capacity of the battery cell are performed through the test board.

On the other hand, in order to perform such a test process, it is necessary to connect the terminal existing on the test board and the battery connector to apply the test signal.

To this end, conventionally, a battery connector is formed in the form of a male connector and a terminal of the test board is provided in the form of a female connector, and a socket method of fitting the male connector to the female connector is adopted.

However, according to the fastening method of the male and female connectors according to the prior art, the terminals of the female and male connectors are damaged or poor contact occurs due to the continuous fastening and disconnection operation. There was a problem.

Korea Patent Registration No. 10-1718453

An embodiment of the present invention provides a battery test board and a test apparatus to facilitate the electrical connection process between the test board and the battery connector.

The object of the present invention is not limited to the above, and other objects and advantages of the present invention which are not mentioned may be understood by the following description.

Battery test board according to an embodiment of the present invention, the test device connecting portion having a connection terminal connected to the battery test device; It may be provided on one side of the test device connection portion, a connector connection portion having a pad-type connection terminal connected to the battery connector.

In an embodiment of the present invention, the pad type connection terminal may include a gold plated layer having a flat contact surface with the battery connector.

In an embodiment of the present invention, the pad type connection terminal may further include an elastic layer disposed between the test board and the gold plated layer.

In addition, the battery test apparatus according to an embodiment of the present invention, a test device connecting portion having a connection terminal connected to the battery test apparatus, provided on one side of the test device connection portion having a pad-type connection terminal connected to the battery connector A test board having a connector connection portion; A base on which the test board is mounted; A jig in which a battery having a battery connector connected to the pad type connection terminal is seated; And a pressurizing unit pressurizing the battery connector to connect the pad type connection terminal.

In an embodiment of the present invention, the jig may be provided with a battery seating groove to correspond to the shape of the battery.

In an embodiment of the present invention, the pressurizing unit may include a pressurizing member which is provided to be elevated on one side of the test board and pressurizes the battery connector toward the pad-type connecting terminal; It may include; a pressure cylinder for providing a driving force to the pressing member.

In an embodiment of the present invention, the test board may further include a pressure sensor for detecting the pressing force of the pressing unit.

In addition, the battery test method according to an embodiment of the present invention, comprising the steps of: providing a test board having a pad-type connection terminal in the test apparatus; Moving the battery to a test position and correspondingly placing a battery connector connected to the battery on the test board; Driving the pressing member to pressurize the battery connector to the pad-type connecting terminal of the test board.

In an embodiment of the present invention, the method may further include adjusting a contact pressure between the battery connector and the pad-type connecting terminal by the pressing member.

In an embodiment of the present disclosure, the method may further include setting coordinates of the pad-type connecting terminal and adjusting displacement of the pressing member when the displacement of the pressing member is out of the coordinates of a setting range.

According to an embodiment of the present invention, by implementing the connection between the pad-type connection terminal of the test board and the battery connector in a contact manner, it is possible to minimize the damage or deformation applied to each terminal when connecting or disconnecting each other.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configurations of the invention described in the detailed description or claims of the present invention.

1 is a schematic diagram showing a test board according to an embodiment of the present invention.
2 is a perspective view showing a part of a test apparatus according to an embodiment of the present invention.
3 is a plan view showing a part of a test apparatus according to an embodiment of the present invention.
4 is a plan view illustrating a state of testing a battery using a test apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the essence of the present invention may be omitted, and the same reference numerals may be assigned to the same or similar elements throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, unless otherwise defined herein, as understood by one of ordinary skill in the art to which the invention pertains. It can be interpreted as a concept.

1 shows a test board according to an embodiment of the present invention.

Referring to FIG. 1, the test board 100 according to an embodiment includes a test device connection unit 110 and a connector connection unit 120.

The test device connection unit 110 may be a substantially rectangular printed circuit board when viewed in a plan view. At least one connection terminal 111 may be provided at an approximately center of an upper surface of the test device connection unit 110. The connection terminal 111 may include a voltage measuring terminal (+,-), a thermal conductivity measuring terminal (TH), and a genuine certification measuring terminal (ID).

At least one first fastening hole 112 may be formed in the test apparatus connection unit 110 to be fastened to a test apparatus which will be described later. In one embodiment, two first fastening holes 112 are formed at both sides of the test apparatus connection unit 110.

The connector connection part 120 is provided at one side of the test device connection part 110. The connector connection part 120 may be a rectangular printed circuit board having an area smaller than that of the test device connection part 110.

The pad type connection terminal 121 is formed at approximately the center of the upper surface of the connector connecting portion 120. The pad type connection terminal 121 of the connector connection unit 120 may be electrically connected to the connection terminal 111 of the test device connection unit 110 through a circuit pattern (not shown). The pad type connection terminal 121 may include a voltage measuring terminal, a thermal conductivity measuring terminal TH, a genuine certification measuring terminal ID, and the like.

The pad type connection terminal 121 may include a planar conductive metal layer, for example, gold, copper, or nickel. At this time, the pad type connection terminal 121 is preferably formed of a gold plated layer that can minimize the contact resistance when contacting the battery connector.

Therefore, when the battery is tested, since the terminals of the battery connector are in contact with the pad type connection terminal 121 having a flat top surface of the test board 100, the contact area may be increased to improve contactability. The terminal of the battery connector may be formed as a conventional male connector or may be formed as a pad-type terminal having a flat surface to correspond to the pad-type connection terminal 121 of the test board 100.

The pad type connection terminal 121 may further include an elastic layer. The elastic layer may be provided between the test board and the conductive metal layer. For example, when the male connector type battery connector is in pressure contact with the conductive metal layer, there is a risk of damage to the conductive metal layer or the battery connector if the contact pressure is not properly adjusted. The elastic layer may provide elastic force when the battery connector contacts the conductive metal layer to prevent breakage of the conductive metal layer.

In addition, the test board 100 may further include a pressure sensor. For example, the pressure sensor may be disposed under the test board 100, and may adjust the pressing force in real time by feeding back the pressing force of the pressing unit to the controller.

The battery connector may be firmly and stably connected between the pad-type connection terminal and the battery connector by being pressed toward the pad-type connection terminal by the pressure unit of the test apparatus described later.

As a result, in the prior art, the pin-socket contact method is adopted between the test board and the battery connector, but in one embodiment, the surface contact method is applied between the test board 100 and the battery connector, thereby improving contact between each other and providing a stable connection. By making it possible, damage or deformation of each terminal can be minimized. Therefore, semi-permanent use of the test board 100 may be possible.

2 to 4 show a test apparatus according to an embodiment of the present invention, respectively.

Devices such as automobiles and smart phones that use electric energy should have excellent performance of each battery because the performance of the battery directly affects the performance of the device. Accordingly, a battery test apparatus capable of efficiently managing charge and discharge of each battery by measuring voltage and current of each battery is needed.

2 to 4, the test apparatus 200 according to an embodiment includes a test board 100, a base 210, a jig 220, and a pressurizing unit 230.

The test board 100 has a pad type connection terminal 121 having a planar shape, and the configuration thereof is the same as described above, and thus a detailed description thereof will be omitted.

The base 210 provides a space in which the test board 100 and the jig 220 may be seated. In one example, the base 210 is provided with a board seating portion 211 so that the test board 100 according to the embodiment is seated and coupled. The test board 100 may be fixedly coupled to the board seating portion 211 through a fixing member such as a screw or rivet inserted through the first fastening hole.

The jig 220 may provide a space for accommodating the battery 10 therein. For example, the battery seating groove 221 may be concave downward in the center of the jig 220. The battery seating recess 221 may be formed to correspond to the shape of the battery 10. Here, the battery may be a battery cell itself or may include a battery cell casing.

The jig 220 is detachably coupled to the base 210. For example, the jig 220 is formed in a substantially rectangular plate shape in plan view, and second fastening holes 222 are formed at each corner portion of the jig 220, and each second fastening hole 222 has a screw or the like. By inserting a fixing member such as a rivet, the jig 220 may be coupled to the base 210.

Therefore, even though the types of the batteries 10 to be tested vary, the various types of battery inspection may be performed by replacing and mounting the jig 220 manufactured to correspond to the type of each battery to the base 210.

The pressurizing unit 230 includes a pressurizing member 231 which can move horizontally and vertically, and a pressurizing cylinder 232 for lifting and lowering the pressurizing member. The pressing member 231 is formed in a substantially plate shape and presses the battery connector 20 toward the test board 100. The pressure cylinder 232 provides a driving force to the pressure member 231, the pressure member 231 is moved up and down by the driving force provided from the pressure cylinder 232. The pressure cylinder 232 may be a pneumatic cylinder disposed above the pressure member 231.

The pressure cylinder 232 needs to be set in search of conditions under which the battery connector 20 is not damaged and the function is accurately measured. That is, since the internal resistance of the battery is very sensitive in mohm units, it is necessary to adjust the setting value of the pressure cylinder 232 by the corresponding value when there is a deviation in the measured value continuously through the pressure cylinder 232. . Therefore, the contact pressure between the battery connector 20 and the pad-type connection terminal 121, the displacement of the pressurizing unit 230, etc. by the pressurizing unit 230 is statistically processed so that the pressurizing unit 230 is out of the setting range. It is desirable to adjust pressure, displacement, and the like.

The pressing member 231 before the test process of the battery 10 is disposed at a sufficient interval on the upper side of the test board 100, and the battery connector 20 is pad-type connection terminal 121 of the test board 100. When the pressure cylinder 232 is driven after the corresponding position, the pressure member 231 is lowered to press the battery connector 20 downward, that is, toward the test board 100. Accordingly, the terminal of the battery connector 20 and the pad type connection terminal of the test board 100 may be connected to each other without a separate fastening process.

At this time, the coordinates of the pad-type connection terminal of the test board is stored in the control unit, the pressing member can move and move according to the set coordinates.

In addition, since the battery connector 20 and the test board 100 are not fastened to each other, after the test for the battery 10 is completed, the battery connector 20 is lifted from the test board 100 by raising the pressing member 231. 20) can be easily removed. Accordingly, various problems such as damage or deformation of the pad type connection terminal 121 of the test board 100 can be solved.

The test apparatus 200 according to an embodiment may further include a vacuum adsorption unit (not shown) for vacuum suction of the battery 10 to be tested and the battery connector 20 to be seated on the jig 220.

In addition, the test apparatus 200 according to an embodiment may further include an alignment sensor (not shown) which detects the alignment state of the battery which is transferred by the vacuum adsorption unit and seated on the jig 220. . The alignment sensor may be installed on a jig or a base to detect a seating state of the battery, and may be set so that a test operation is not performed by transmitting a signal to a controller (not shown) when the battery is not aligned at a proper position. Thus, test errors can be minimized.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all respects. Should be.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. .

100; Test board 110; Test device connection
111; Connector 112; First fastener
120; Connector connection 121; Pad Type Connection Terminal
200; Test apparatus 210; Base
211; Board seating portion 220; Jig
221; Battery seating groove 222; 2nd conclusion
230; Pressurizing unit 231; Pressure member
232; Pressurized cylinder

Claims (10)

In the battery test board,
A test device connection part having a connection terminal connected to the battery test device;
A connector connection part provided at one side of the test device connection part and having a pad type connection terminal connected to the battery connector;
Battery test board comprising a.
The method of claim 1,
The pad connection terminal includes a conductive metal layer having a flat contact surface with the battery connector.
The method of claim 2,
The pad type connection terminal further comprises an elastic layer disposed between the test board and the conductive metal layer.
In the battery test apparatus,
A test board having a test device connection part having a connection terminal connected to a battery test device, a test board having a connector connection part provided at one side of the test device connection part and having a pad type connection terminal connected to the battery connector;
A base on which the test board is mounted;
A jig in which a battery having a battery connector connected to the pad type connection terminal is seated;
A pressurizing unit pressurizing the battery connector to connect the pad type connection terminal;
Battery test apparatus comprising a.
The method of claim 4, wherein
The jig is provided with a battery seating groove so as to correspond to the shape of the battery.
The method of claim 4, wherein
The pressurizing unit,
A pressing member provided on one side of the test board so as to be liftable and pressurizing the battery connector toward the pad type connection terminal;
A pressure cylinder for providing a driving force to the pressure member;
Battery test apparatus comprising a.
The method of claim 4, wherein
The test board further comprises a pressure sensor for detecting the pressing force of the pressing unit.
The method of claim 1,
The battery test apparatus further comprises an alignment sensor for sensing the alignment state of the battery seated on the jig.
In the battery test method,
Providing a test board having a pad type connection terminal in the test apparatus;
Moving the battery to a test position and correspondingly placing a battery connector connected to the battery on the test board;
Driving the pressure member to pressurize the battery connector to the pad type connection terminal of the test board;
Battery test method comprising a.
The method of claim 9,
The battery test method further comprises the step of adjusting the contact pressure between the battery connector and the pad-type connecting terminal by the pressing member.

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