A manufacturing method of a short-circuit prevention battery clamp

Abstract

The application belongs to the technical field of battery testing, and particularly relates to a manufacturing method of a short-circuit-preventing battery clamp, which comprises the following steps: manufacturing a base plate, and opening a first opening and a second opening on the base plate; manufacturing a placing groove, one end of the placing groove being provided with a first clamping site, and the other end being provided with a second clamping site; connecting and fixing the placing groove with the front surface of the base plate, so that the first clamping site is opposite to the first opening, and the second clamping site is opposite to the second opening; manufacturing a positive electrode terminal, and inserting and fixing the positive electrode terminal in the first clamping site, and making a first micro circuit board of the positive electrode terminal extend to the bottom surface of the base plate through the first opening; and manufacturing a negative electrode terminal, and inserting and fixing the negative electrode terminal in the second clamping site, and making a second micro circuit board of the negative electrode terminal extend to the bottom surface of the base plate through the second opening. The manufacturing method provided by the application can obtain a clamp with a positive electrode terminal and a negative electrode terminal, wherein the positive electrode terminal comprises an elastic column and a pole piece, and can effectively prevent short circuit during battery installation, and ensure testing safety.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery testing, and particularly relates to a manufacturing method of a short-circuit-preventing battery clamp. BACKGROUND

[0002] Cylindrical batteries are the earliest mature industrialized battery products. After more than 20 years of development, the production process of cylindrical batteries is now mature, the production efficiency is relatively high, the cost is relatively low, and the battery yield is higher than that of square batteries and soft package batteries, and the consistency and safety are relatively excellent.

[0003] Cylindrical batteries are generally packaged with metal shells, and plastic films are coated on the metal shells after packaging to protect the battery shell as the negative electrode. Before the plastic packaging of the cylindrical battery, testing needs to be performed, including but not limited to testing of battery voltage, current and internal resistance. The clamp needs to be used during testing. The traditional clamp uses a spring sheet for fixation. During the process of loading the unpackaged cylindrical battery into the clamp, at the positive electrode end of the battery, the spring sheet successively contacts the negative electrode at the edge of the battery end and the positive electrode at the center of the battery end, which easily leads to short-circuiting of the positive and negative electrodes of the battery, and dangerous conditions such as sparking and rapid temperature rise of the battery.

[0004] How to solve the problem of short-circuiting of the battery caused by the elasticity of the clamp during testing of the cylindrical battery, and the prior art does not provide a corresponding solution. SUMMARY

[0005] The purpose of the embodiment of the application is to provide a manufacturing method of a short-circuit-preventing battery clamp, aiming to solve the problem that the clamp provided in the prior art is easy to cause short-circuiting of the battery when loaded into the battery.

[0006] The embodiment of the application is implemented in the following manner. A manufacturing method of a short-circuit-preventing battery clamp comprises the following steps.

[0007] A base plate is manufactured, and a first opening and a second opening are formed on the base plate;

[0008] A placement groove is manufactured, one end of the placement groove is provided with a first clamping position, and the other end is provided with a second clamping position;

[0009] The placement groove is connected and fixed to the front surface of the base plate, so that the first clamping position is opposite to the first opening, and the second clamping position is opposite to the second opening;

[0010] A positive electrode terminal is manufactured, the positive electrode terminal is inserted and fixed to the first clamping position, and a first micro circuit board of the positive electrode terminal extends to the bottom surface of the base plate through the first opening;

[0011] A negative electrode terminal is manufactured, the negative electrode terminal is inserted and fixed to the second clamping position, and a second micro circuit board of the negative electrode terminal extends to the bottom surface of the base plate through the second opening.

[0012] The manufacturing method of the short-circuit prevention battery clamp provided by the embodiment of the present application is obtained by arranging a placing groove, a positive electrode terminal and a negative electrode terminal on a substrate, wherein the positive electrode terminal is provided with an elastic column and a pole piece; by arranging the elastic column, the positive electrode contact and the negative electrode contact at one end of the battery cannot be in contact with the elastic column at the same time during the battery loading process, so that the battery short circuit is prevented; on this basis, by arranging the pole piece, the positive electrode contact and the negative electrode contact at one end of the battery cannot be in contact with the pole piece at the same time under the cooperation of the elastic column, so that the safety during the battery loading process is ensured; at the same time, the cooperation of the elastic column and the pole piece can realize the four-wire detection of the battery and improve the detection precision; the battery clamp is manufactured by using the manufacturing method provided by the present application, the consistency of the battery clamp can be ensured, the spring sheet type contact is replaced, the conductive contact between the clamp and the battery is more stable, and the contact resistance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The three-dimensional structure of the upper side of the short-circuit prevention battery clamp provided by the embodiment of the present application Figure 1

[0014] Figure 2 The three-dimensional structure of the upper side of the short-circuit prevention battery clamp provided by the embodiment of the present application Figure 2

[0015] Figure 3 The three-dimensional structure of the lower side of the short-circuit prevention battery clamp provided by the embodiment of the present application

[0016] Figure 4 The three-dimensional structure of the positive electrode terminal

[0017] Figure 5 The three-dimensional structure of the negative electrode terminal

[0018] Figure 6 The three-dimensional structure of the placing groove provided by the embodiment of the present application.

[0019] In the drawings: 1, positive electrode terminal; 11, insulating fixed part; 12, elastic column; 13, pole piece; 14, first micro circuit board; 2, negative electrode terminal; 21, fixed seat; 22, telescopic column; 23, second micro circuit board; 3, placing groove; 4, substrate; 5, clamping seat; 6, first clamping position; 7, second clamping position. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0021] The specific implementation of the present application is described in detail below in combination with specific embodiments. ​​

[0022] The embodiment of the present application provides a manufacturing method of a short-circuit prevention battery clamp, which comprises the following steps:

[0023] Manufacture a substrate, and open a first opening and a second opening on the substrate;

[0024] Manufacture a placing groove, and one end of the placing groove is provided with a first clamping site, and the other end is provided with a second clamping site;

[0025] Connect and fix the placing groove with the front surface of the substrate, so that the first clamping site is opposite to the first opening, and the second clamping site is opposite to the second opening;

[0026] Manufacture a positive electrode terminal, and insert and fix the positive electrode terminal in the first clamping site, and make the first micro circuit board of the positive electrode terminal extend to the bottom surface of the substrate through the first opening;

[0027] Manufacture a negative electrode terminal, and insert and fix the negative electrode terminal in the second clamping site, and make the second micro circuit board of the negative electrode terminal extend to the bottom surface of the substrate through the second opening.

[0028] In the embodiment, the opening on the substrate can be realized by punching, laser cutting and the like, and the opening can be a waist-shaped hole or a strip-shaped hole. The first opening and the second opening are the same in shape and size and are arranged side by side, and the length direction of the hole is parallel. When the substrate is arranged in a rectangular shape, the length direction of the first opening and the second opening is parallel to the width direction of the substrate. The substrate can be arranged in a rectangular thin plate structure, and the substrate is a circuit board.

[0029] In the embodiment, the placing groove is a groove-shaped structure for placing a battery to be tested, and the basic form can refer to the battery mounting position in the existing electronic product using a cylindrical battery. Different from the general existing placing groove for a cylindrical battery, the two end top portions of the placing groove manufactured by the method provided by the present application are each provided with a clamping site. The structure of the clamping site can refer to the drawing shown in the specification, and the clamping site is essentially a slot. The positive electrode terminal and the negative electrode terminal are inserted into the clamping site and are fixed by soldering.

[0030] In the embodiment, the bottom portion of the first clamping site is opposite to the first opening, and the bottom portion of the second clamping site is opposite to the second opening. After the positive electrode terminal or the negative electrode terminal is inserted into the corresponding clamping site, the bottom portion of the positive electrode terminal or the negative electrode terminal extends out of the clamping site and penetrates into the corresponding opening and extends to the bottom surface of the substrate. After extending to the bottom surface of the substrate, the positive electrode terminal or the negative electrode terminal is fixed with the substrate by using soldering.

[0031] The manufacturing method of the short-circuit prevention battery clamp provided by the embodiment of the application comprises the following steps: a placing groove, a positive electrode terminal and a negative electrode terminal are arranged on a substrate, wherein the positive electrode terminal is provided with an elastic column and a pole piece; the elastic column is arranged to prevent the positive electrode contact and the negative electrode contact of one end of the battery from being in contact with the elastic column at the same time during the battery loading process, thereby preventing the battery from being short-circuited; on this basis, the pole piece is arranged, and the positive electrode contact and the negative electrode contact of one end of the battery cannot be in contact with the pole piece at the same time under the cooperation of the elastic column, thereby ensuring the safety during the battery loading process; meanwhile, the cooperation of the elastic column and the pole piece can realize four-wire detection of the battery and improve the detection accuracy; the battery clamp manufactured by using the manufacturing method provided by the application can ensure the consistency of the battery clamp, replace the spring piece type contact, and make the conductive contact between the clamp and the battery more stable, thereby reducing the contact resistance.

[0032] As a preferred embodiment of the application, the manufacturing substrate comprises:

[0033] The substrate bottom layer is manufactured by using an insulating material;

[0034] The conductive layer is manufactured on the substrate bottom layer, and the conductive layer is at least divided into two independent regions;

[0035] The substrate top layer is manufactured on the conductive layer by using an insulating material;

[0036] The first opening and the second opening respectively pass through one conductive layer.

[0037] In the embodiment, the insulating material herein is the same as the insulating material used in the general manufacturing of a circuit board, the same insulating material is used for the bottom layer and the top layer, and the conductive layer is manufactured by using a conductive material such as a conductive metal such as copper. In the production of a circuit board, the conductive layer is arranged between two insulating layers and the shape of the conductive layer is arranged to connect different devices (positive electrode terminal, negative electrode terminal), which belongs to the prior art, and the application does not make specific limitations in this regard.

[0038] In the embodiment, the opening passes through the conductive layer, so that the positive electrode terminal or the negative electrode terminal is in conductive contact with the conductive layer when passing through the opening, thereby realizing conductive connection.

[0039] In the embodiment, the conductive layer is at least divided into two independent regions, one independent region is connected with the positive electrode terminal, and the other independent region is connected with the negative electrode terminal; when it is required that the elastic column and the pole piece, or the elastic columns of the negative electrode terminal, are not conductive with each other, each independent region can be further divided into a plurality of independent small regions, and each small region is separately conductively connected with the elastic column, the pole piece or the elastic column.

[0040] As a preferred embodiment of the application, the manufacturing placing groove comprises:

[0041] The placing groove is integrally formed by injection molding process, and the middle cross section of the placing groove is in the shape of a V or U.

[0042] In the present embodiment, Figure 6 The three-dimensional structure of the placing groove is shown in FIG. 1, and the basic structure of the placing groove can refer to the common electronic products using cylindrical electronic in the prior art, and the clamping position is essentially a slot. Figure 6 The shape and structure of the slot can be clearly seen in FIG. 2, and in fact, any structure capable of inserting the micro circuit board and exposing the bottom of the circuit board can be used as the clamping position of the present application.

[0043] As a preferred embodiment of the present application, the manufacturing of the positive electrode terminal comprises:

[0044] Manufacturing the first micro circuit board;

[0045] Providing the elastic column on the first micro circuit board, so that the elastic column is in conductive connection with one electrode of the first micro circuit board;

[0046] Manufacturing the insulating fixing part;

[0047] Sleeving the insulating fixing part around the elastic column so that the elastic column passes through the accommodating position of the insulating fixing part, and fixing the insulating fixing part and the first micro circuit board, so that the pole piece on the insulating fixing part is in conductive connection with another electrode of the first micro circuit board.

[0048] In the present embodiment, the manufacturing process of the micro circuit board can refer to the manufacturing of the existing circuit board. In the present embodiment, at least two electrodes are provided in the micro circuit board, and the two electrodes serve as conductive wires to provide connection points for the conductive connection between the elastic column, the pole piece and the test equipment. The shape and size of the conductive layer in the micro circuit board are not specifically limited in the present application, as long as the above-mentioned conductive connection requirements can be met.

[0049] As a preferred embodiment of the present application, the manufacturing of the insulating fixing part comprises:

[0050] Punching the insulating fixing part from the insulating plate material;

[0051] Providing a circular through hole at the center of the insulating fixing part;

[0052] Providing a conductive copper piece as the pole piece on one side of the insulating fixing part, and providing a connection layer on the inner wall of the circular through hole, which is in conductive connection with the pole piece on one side of the insulating fixing part and extends from the circular through hole to the other side of the insulating fixing part.

[0053] In the embodiment, the insulating plate can be selected as the insulating plate with the thickness of 2-8mm, and the insulating fixed part is obtained by punching. The insulating fixed part can be designed as a rectangle, a triangle, etc., and preferably a square block structure with a certain thickness.

[0054] In the embodiment, the diameter of the circular through hole (i.e. the accommodating position) at the center of the insulating fixed part is greater than the maximum diameter of the elastic column, so that the elastic column can be extended and retracted in the circular through hole.

[0055] In the embodiment, the conductive copper sheet can be provided as a concave structure or a convex structure. When the concave structure is provided, the circular through hole is arranged at the center of the concave part of the concave structure, and the circular through hole is partially surrounded by the pole piece. When the convex structure is provided, the circular through hole is arranged at the center of the convex part of the convex structure, and the circular through hole is completely surrounded by the pole piece, but the pole piece is not uniformly formed as a notch shape at the edge of the circular through hole.

[0056] As a preferred embodiment of the present application, the first micro circuit board is manufactured by:

[0057] The first micro circuit board bottom layer is manufactured by using an insulating material.

[0058] The conductive layer is manufactured on the first micro circuit board bottom layer, and the conductive layer is at least divided into two independent areas.

[0059] The first micro circuit board top layer is manufactured on the conductive layer by using an insulating material.

[0060] In the embodiment, the first micro circuit board and the second micro circuit board can be provided as a convex structure, and the convex part of the convex structure is provided with two copper sheets for connecting with the substrate or the card seat. The copper sheet is connected with the conductive layer in the micro circuit board.

[0061] As a preferred embodiment of the present application, the negative terminal is manufactured by:

[0062] The second micro circuit board is manufactured.

[0063] The elastic column is arranged on the second micro circuit board, and the elastic column is conductively connected with the electrode of the second micro circuit board.

[0064] In the embodiment, the bottom of the elastic column is fixed on the second micro circuit board by the fixing seat.

[0065] As a preferred embodiment of the present application, the second micro circuit board is manufactured by:

[0066] The second micro circuit board bottom layer is manufactured by using an insulating material.

[0067] An electrically conductive layer is formed on the second micro-circuit board bottom layer, and the electrically conductive layer is divided into at least two independent areas;

[0068] An insulating material is used to form a second micro-circuit board top layer on the electrically conductive layer.

[0069] In this embodiment, the process of forming the second micro-circuit board can refer to the description of forming the first micro-circuit board, and the embodiment of the application will not be repeated here.

[0070] As a preferred embodiment of the application, the method for manufacturing the short-circuit prevention battery clamp further comprises:

[0071] A first clamping seat and a second clamping seat are arranged on the back surface of the substrate, the first clamping seat is in conductive connection with the positive electrode terminal, and the second clamping seat is in conductive connection with the negative electrode terminal.

[0072] In this embodiment, the clamping seat is a structure for connecting with the clamping opening, and a conductive metal sheet or a metal column is arranged in the clamping seat. After the clamping seat is connected with the clamping opening, the conductive metal sheet is in contact with the metal column to realize conductive connection. The clamping seat can be any type of plug-in structure, and the embodiment of the application does not limit the specific structure of the clamping seat and the clamping opening. When the clamping seat is not used, the detection can also be performed through a wire.

[0073] As shown in Figures 1-6 The short-circuit prevention battery clamp provided by the embodiment of the application includes a clamp body, and the clamp body is provided with a positive electrode terminal 1 and a negative electrode terminal 2.

[0074] The positive electrode terminal 1 includes an insulating fixing part 11, and a containing position is arranged on the side of the insulating fixing part 11 facing the battery. A resilient column 12 is arranged at the center of the containing position. In an unforced state, the top of the resilient column 12 is higher than the surface of the insulating fixing part 11, and in a forced state, the resilient column 12 is pressed into the containing position. The diameter of the resilient column 12 is smaller than the distance between the grooves between the positive and negative electrodes of the battery used.

[0075] An electrode sheet 13 is arranged on the surface of the side of the insulating fixing part 11 facing the battery. In a test state, the electrode sheet 13 is in contact with the positive electrode of the battery.

[0076] In the test, the resilient column 12 is connected with a current test end, and the electrode sheet 13 is connected with a voltage test end.

[0077] In the embodiment, the positive terminal 1 and the negative terminal 2 are respectively used to contact the positive and negative poles of the battery for detection. In the application, for a cylindrical battery, the metal shell of the battery including the bottom is generally used as the negative pole, and the negative pole extends to the positive pole of the battery. The positive pole and the negative pole of the battery are separated by a groove on the top of the battery. After the battery is completely encapsulated by the external plastic, the negative pole of the battery is not exposed except the bottom of the battery. Therefore, even if the spring contact is used, the short circuit problem will not occur during the process of loading the battery into the clamp. However, the detection of the battery is usually performed before the battery is encapsulated by the plastic. At this time, the positive contact and the negative contact are exposed on the top of the battery and are only separated by the groove. The short circuit of the battery is easily caused during the process of loading the battery into the clamp before the test. The positive terminal 1 is designed as the elastic column 12 in the application, so that the elastic column 12 cannot connect the positive pole and the negative pole of the battery, and the problem of short circuit during the process of loading the battery into the test clamp is solved.

[0078] In the embodiment, the insulating fixing part 11 is further provided with the pole piece 13 on the side surface of the battery. The pole piece 13 and the elastic column 12 are insulated from each other on the clamp. The elastic column 12 is used for current detection of the battery, and the pole piece 13 is used for voltage detection of the battery. Since the pole piece 13 has a larger contact area with the positive pole of the battery, the contact resistance can be significantly reduced, and the detection accuracy is improved. The detection accuracy of the general household battery can reach one ten-thousandth by using the short-circuit prevention battery clamp of the application.

[0079] In the embodiment, the insulating fixing part 11 can be provided as a square or rectangular structure with a certain thickness and is made of common insulating materials such as plastic, silicon wafer, fiber plate, etc. The accommodating position can be provided as a circular through hole, and the elastic column 12 and the circular hole are arranged concentrically. The elastic column 12 and the pole piece 13 are made of metal materials with good conductivity. In the embodiment, the elastic column can include a fixed section and an expansion section. The fixed section is hollow, and the expansion section is partially sleeved in the fixed section. The bottom of the expansion section is provided with a spring for keeping the expansion section in the state of being popped out. The length of the expansion section is greater than or equal to the length of the hollow part of the fixed section. The length of the fixed section is less than or equal to the thickness of the insulating fixing part 11. In the embodiment, the diameter of the elastic column 12 is less than the distance between the positive and negative poles of the battery. Here, the diameter of the expansion section is less than the distance between the positive and negative poles of the battery, and the distance varies with different batteries.

[0080] The battery clamp for preventing short circuit provided by the embodiment of the present application can ensure the prevention of battery short circuit by setting the elastic column 12, so that the positive pole contact and the negative pole contact at one end of the positive pole of the battery cannot be contacted with the elastic column 12 at the same time during the battery loading process; on this basis, the positive pole contact and the negative pole contact at one end of the positive pole of the battery cannot be contacted with the pole piece 13 at the same time under the cooperation of the elastic column 12, so as to ensure the safety during the battery loading process; meanwhile, the cooperation of the elastic column 12 and the pole piece 13 can realize the four-wire detection of the battery, and improve the detection precision.

[0081] As a preferred embodiment of the present application, the side of the insulating fixing part 11 facing away from the battery is provided with a first micro circuit board 14, the bottom of the elastic column 12 is fixed on the first micro circuit board 14, and the pole piece 13 extends from the inner wall of the accommodating position to the first micro circuit board 14.

[0082] In the embodiment, the insulating fixing part 11 is fixedly arranged on the first micro circuit board 14, the elastic column 12 and the pole piece 13 are respectively conductively connected with the first micro circuit board 14, and the first micro circuit board 14 is used for connecting with a test device.

[0083] As a preferred embodiment of the present application, the clamp body comprises a placing groove 3, one end of the placing groove 3 is provided with a first clamping position, and the first micro circuit board 14 is clamped on the first clamping position.

[0084] In the embodiment, the first micro circuit board 14 is clamped on the first clamping position. As a further preferred scheme, a notch is arranged above the pole piece 13. When the battery is clamped into the placing groove 3 from top to bottom, the pole piece 13 cannot be connected with the positive pole and the negative pole of the battery at the same time due to the notch above the pole piece 13, so as to avoid short circuit; and in other directions, the battery cannot be slid into the placing groove 3 from these directions, so that increasing the area of the pole piece 13 will not cause the pole piece 13 to be contacted with the positive pole and the negative pole of the battery at the same time, thereby avoiding short circuit, and increasing the area of the pole piece 13 can significantly reduce the contact resistance.

[0085] As a preferred embodiment of the present application, the clamp further comprises a base plate 4, and the placing groove 3 is arranged on the base plate 4.

[0086] The base plate 4 is provided with a first opening, and after the first micro circuit board 14 is clamped on the first clamping position, the connecting end of the first micro circuit board 14 extends to the bottom surface of the base plate 4 through the first opening and is welded and fixed with the bottom of the base plate 4.

[0087] In the embodiment, the substrate 4 can be made of insulating material, including but not limited to silicon plate, plastic plate, fiber plate, etc., and can be made of general circuit board substrate for easy connection in later stage. The connecting end of the first micro circuit board 14 is provided with two copper sheets, one of which is in conductive connection with the elastic column 12, and the other of which is in conductive connection with the pole piece 13.

[0088] As a preferred embodiment of the application, the negative terminal 2 comprises a second micro circuit board 23, a fixing seat 21 and a telescopic column 22.

[0089] The fixing seat 21 is arranged on the side of the second micro circuit board 23 facing the battery, and a plurality of telescopic columns 22 are arranged on the fixing seat 21, one end of each telescopic column 22 penetrating through the fixing seat 21 and being fixedly connected with the second micro circuit board 23, and the other end of each telescopic column 22 extending towards the battery.

[0090] In the embodiment, the structure of the telescopic column 22 can refer to the structure of the elastic column 12, and the difference between them is only the size. In the embodiment, no further limitation is made.

[0091] As a preferred embodiment of the application, the other end of the placing groove 3 is provided with a second clamping position, and the second micro circuit board 23 is clamped on the second clamping position.

[0092] The substrate 4 is provided with a second opening, and after the second micro circuit board 23 is clamped on the second clamping position, the connecting end of the second micro circuit board 23 penetrates through the second opening and extends to the bottom surface of the substrate 4, and is welded and fixed to the bottom of the substrate 4.

[0093] In the embodiment, the second clamping position has the same effect as the first clamping position, and the second clamping position is used for fixing the second micro circuit board 23. The second micro circuit board 23 can be the same as or similar to the first micro circuit board 14 in overall structure, and the difference is mainly in the arrangement of the internal conductive metal.

[0094] As a preferred embodiment of the application, the telescopic column 22 is provided with four telescopic columns.

[0095] In the embodiment, the four telescopic columns 22 lead out two connecting terminals after penetrating through the second micro circuit board, and each connecting terminal is in conductive connection with two telescopic columns 22, which can increase the contact area and stability of each connecting terminal with the negative electrode of the battery, make the contact between the negative electrode of the battery and the telescopic column 22 more reliable, and reduce the contact resistance.

[0096] As a preferred embodiment of the application, the bottom surface of the substrate 4 is provided with a clamping seat 5, and the clamping seat 5 is provided with two clamping seats 5, one of which is in conductive connection with the positive terminal 1, and the other of which is in conductive connection with the negative terminal 2.

[0097] In the embodiment, the card seat 5 is arranged on the substrate 4, facilitating mounting and fixing of the clamp, and plug-in connection can be realized by using the card seat 5.

[0098] The above merely provides the preferred embodiments of the application, and is not intended to limit the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the application shall fall within the protection scope of the application.

Claims

1. A method of manufacturing a short-circuit preventing battery clamp applied to an un-encapsulated cylindrical battery, characterized by, The manufacturing method of the anti-short-circuit battery clamp comprises the following steps: Manufacture a substrate, and open a first opening and a second opening on the substrate; Manufacture a placing groove, one end of which is provided with a first clamping site, and the other end of which is provided with a second clamping site; Connect and fix the placing groove with the front surface of the substrate, so that the first clamping site is opposite to the first opening, and the second clamping site is opposite to the second opening; Manufacture a positive electrode terminal, and insert and fix the positive electrode terminal in the first clamping site, and make the first micro circuit board of the positive electrode terminal extend to the bottom surface of the substrate through the first opening; Manufacture a negative electrode terminal, and insert and fix the negative electrode terminal in the second clamping site, and make the second micro circuit board of the negative electrode terminal extend to the bottom surface of the substrate through the second opening; The manufacturing of the positive electrode terminal comprises the following steps: Manufacture a first micro circuit board; Set an elastic column on the first micro circuit board, and make the elastic column conductively connected with one electrode of the first micro circuit board; Manufacture an insulating fixing part; Sleeve the insulating fixing part on the periphery of the elastic column, so that the elastic column penetrates the accommodating site of the insulating fixing part, in the stress-free state, the top of the elastic column is higher than the surface of the insulating fixing part, in the stressed state, the elastic column is pressed into the accommodating site, the diameter of the elastic column is smaller than the distance between the grooves between the positive and negative electrodes of the used battery, and the insulating fixing part is fixed with the first micro circuit board, so that the pole piece on the insulating fixing part is conductively connected with the other electrode of the first micro circuit board.

2. The method of claim 1, wherein the battery clamp is a short-circuit prevention battery clamp. The manufacturing of the substrate comprises the following steps: Manufacture a substrate bottom layer by using insulating material; Manufacture a conductive layer on the substrate bottom layer, and the conductive layer is at least divided into two independent areas; Manufacture a substrate top layer on the conductive layer by using insulating material; The first opening and the second opening respectively pass through one conductive layer.

3. The method of claim 1, wherein the battery clamp is a short-circuit prevention battery clamp. The manufacturing of the placing groove comprises the following steps: The placing groove is integrally formed by using injection molding process, and the middle part of the placing groove is in the shape of a U or a V.

4. The method of claim 1, wherein the battery clamp is a short-circuit prevention battery clamp. The manufacturing of the insulating fixing part comprises the following steps: The insulating fixing part is punched from an insulating plate; A circular through hole is opened at the center of the insulating fixing part; A conductive copper sheet is arranged on one side of the insulating fixing part as the pole piece, and a connecting layer is arranged on the inner wall of the circular through hole, which is conductively connected with the pole piece on one side of the insulating fixing part and extends from the circular through hole to the other side of the insulating fixing part.

5. The method of claim 1, wherein the battery clamp is a short-circuit prevention battery clamp. The manufacturing of the first micro circuit board comprises the following steps: Manufacture a first micro circuit board bottom layer by using insulating material; Manufacture a conductive layer on the first micro circuit board bottom layer, and the conductive layer is at least divided into two independent areas; Manufacture a first micro circuit board top layer on the conductive layer by using insulating material.

6. The method of claim 1, wherein the battery clamp is a short circuit prevention battery clamp. The manufacturing of the negative electrode terminal comprises the following steps: Manufacture a second micro circuit board; Set an elastic column on the second micro circuit board, and make the elastic column conductively connected with the electrode of the second micro circuit board.

7. The method of claim 6, wherein the battery clamp is made of a conductive material. The manufacturing of the second micro circuit board comprises the following steps: Manufacture a second micro circuit board bottom layer by using insulating material; Manufacture a conductive layer on the second micro circuit board bottom layer, and the conductive layer is at least divided into two independent areas; Manufacture a second micro circuit board top layer on the conductive layer by using insulating material.

8. The method of claim 1, wherein the battery clamp is a short circuit prevention battery clamp. The manufacturing method of the anti-short-circuit battery clamp further comprises the following steps: A first card seat and a second card seat are arranged on the back surface of the substrate, the first card seat is in conductive connection with the positive electrode terminal, and the second card seat is in conductive connection with the negative electrode terminal.

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