Circuit board structure

Abstract

The utility model relates to the technical field of battery charging circuit boards, and discloses a circuit board structure, which comprises a circuit board substrate, two ends of the circuit board substrate are respectively connected with a battery cap and a rechargeable battery, a charging connector is welded on the front surface of the circuit board substrate, and the edge of the circuit board substrate is fixedly connected with a battery connecting contact pin. And the interior of the battery connecting contact pin is connected with an electrode of the rechargeable battery. According to the circuit board structure, the circuit board substrate is arranged, the charging connector is welded to the circuit board substrate through the bonding pad, the circuit board substrate is connected with the rechargeable battery through the battery connecting contact pins, the charging connector is connected with the battery cap, and the circuit board substrate, the battery cap and the rechargeable battery are packaged into the battery shell at the same time; and the through hole matched with the charging connector is formed in the battery shell, so that when the rechargeable battery is used, a data line is directly inserted into the through hole to be connected with the charging connector, and the rechargeable battery can be charged, and the effect of convenient charging is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging circuit boards, in particular to a circuit board structure. Background Art

[0002] As consumables, batteries are generally discarded after being fully discharged, and the components of batteries can cause environmental pollution.

[0003] To address this issue, rechargeable batteries have been introduced to the market. Rechargeable batteries are rechargeable batteries with a limited number of charge cycles and are used in conjunction with a charger. Existing rechargeable batteries require a dedicated charger to charge, and the charger is typically separate from the battery, requiring both the battery and charger to be carried around, which is quite inconvenient.

[0004] To this end, a circuit board structure is introduced that is combined with a rechargeable battery, so that the rechargeable battery can be charged by a mobile phone charger, thereby improving the convenience of using the rechargeable battery. Utility Model Content

[0005] The purpose of the present invention is to provide a circuit board structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a circuit board structure, comprising a circuit board substrate, wherein two ends of the circuit board substrate are respectively connected to a battery cap and a rechargeable battery;

[0007] A charging connector is welded on the front of the circuit board substrate, a battery connection pin is fixedly connected to the edge of the circuit board substrate, and the inside of the battery connection pin is connected to the electrode of the rechargeable battery;

[0008] The back side of the circuit board substrate is fixedly connected with charging and discharging components;

[0009] The battery cap is mounted on an end of the circuit board substrate away from the rechargeable battery, and the contact pins of the battery cap are connected to the charging connector, and the battery cap is electrically connected to one of the battery connection contacts;

[0010] A battery cell test point is also provided at the end of the circuit board substrate.

[0011] Preferably, a connecting through hole is opened on the circuit board substrate, and a supporting foot is fixedly connected to the bottom of the charging connector, and the supporting foot at the bottom of the charging connector passes through the connecting through hole and is fixed.

[0012] Preferably, the edge of one of the two battery connecting contact pins does not exceed the edge of the circuit board substrate, and the edge of the other battery connecting contact pin extends to the outside of the edge of the circuit board substrate.

[0013] Preferably, the end of the circuit board substrate is symmetrically provided with a connection groove, the connection groove passes through the circuit board substrate, and the battery connection contact pin is installed on the top of the connection groove.

[0014] Preferably, the battery connection contact comprises a metal substrate, the metal substrate is welded on the circuit board substrate, an arc-shaped supporting plate is provided at the center of the metal substrate, and the arc-shaped supporting plate extends to the inside of the connection groove.

[0015] Preferably, elastic clips are fixedly connected to both sides of the arc-shaped supporting plate, the two elastic clips are symmetrical to each other, and the two elastic clips apply pressure to the middle of the arc-shaped supporting plate to clamp the electrodes of the rechargeable battery.

[0016] Preferably, an auxiliary hole is opened on the top of the elastic clip, and the auxiliary holes on both sides are symmetrical semicircles, and the interior of the auxiliary holes is filled with solder to weld the electrodes of the rechargeable battery.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] First, the utility model provides a circuit board substrate, and welds a charging connector on the circuit board substrate through a soldering pad, and the circuit board substrate is connected to the rechargeable battery through the battery connection pin, and the charging connector is connected to the battery cap. The circuit board substrate, the battery cap and the rechargeable battery are simultaneously encapsulated inside the battery shell, and a through hole adapted to the charging connector is opened inside the battery shell. When in use, the rechargeable battery can be charged by directly inserting a data cable through the through hole and connecting it to the charging connector, thereby achieving a convenient charging effect.

[0019] Second, the present invention connects the circuit board substrate and the rechargeable battery by using a metal substrate, so that the circuit board substrate and the rechargeable battery can be electrically connected. At the same time, an arc-shaped support plate is provided on the metal substrate to increase the contact area with the rechargeable battery electrode, and the arc-shaped support plate and the elastic clip cooperate to support the rechargeable battery electrode, and the soldering process is used for connection, thereby achieving the effect of improving the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the battery contact structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection between the structure of the utility model and the rechargeable battery;

[0024] Figure 5 This is a schematic diagram of the structure of the utility model and the assembly of the rechargeable battery.

[0025] Among them: 1. Circuit board substrate; 101. Connection via; 102. Battery cell test point; 2. Charging connector; 3. Connection slot; 4. Battery connection contact; 401. Metal substrate; 402. Arc-shaped support plate; 403. Elastic clip; 404. Auxiliary hole; 5. Charging and discharging components; 6. Battery cap; 7. Rechargeable battery. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , a circuit board structure, comprising a circuit board substrate 1, wherein two ends of the circuit board substrate 1 are respectively connected to a battery cap 6 and a rechargeable battery 7;

[0028] A charging connector 2 is welded to the front of the circuit board substrate 1. A battery connection contact 4 is fixedly connected to the edge of the circuit board substrate 1. The inside of the battery connection contact 4 is connected to the electrode of the rechargeable battery 7.

[0029] A charging and discharging component 5 is fixedly connected to the back of the circuit board substrate 1. The charging and discharging component 5 is composed of multiple components and is used to adjust the voltage and current and detect the status of the rechargeable battery 7. When the charging connector 2 is connected to the mobile phone charging adapter, the charging and discharging component 5 converts the voltage into 1.5V and transmits it to the rechargeable battery 7 for storage. When the rechargeable battery 7 is discharging, the charging and discharging component 5 rectifies the voltage of the rechargeable battery 7, thereby ensuring a stable output current of the rechargeable battery 7.

[0030] The components that realize the functions of the charging and discharging components 5 are existing devices, which have the same structure and function as the components of the mobile phone battery;

[0031] The battery cap 6 is mounted on an end of the circuit board substrate 1 away from the rechargeable battery 7 , and the contact pins of the battery cap 6 are connected to the charging connector 2 , and the battery cap 6 is electrically connected to one of the battery connection contacts 4 ;

[0032] A cell test point 102 is also provided at the end of the circuit board substrate 1. The purpose of providing the cell test point 102 is to allow a measuring tool to be inserted from the end of the battery into the interior of the battery and contact the cell test point 102, thereby measuring the voltage of the contact.

[0033] Through the above technical solution, a circuit board substrate 1 is provided, and a charging connector 2 is welded on the circuit board substrate 1 through a soldering pad, and the circuit board substrate 1 is connected to the rechargeable battery 7 through the battery connection contact 4, and the charging connector 2 is connected to the battery cap 6 at the same time. The circuit board substrate 1, the battery cap 6 and the rechargeable battery 7 are simultaneously encapsulated inside the battery shell, and a through hole adapted to the charging connector 2 is provided inside the battery shell. Therefore, when in use, the rechargeable battery 7 can be charged by directly inserting the data cable through the through hole and connecting it to the charging connector 2, thereby achieving the effect of convenient charging.

[0034] Specifically, a connection through hole 101 is opened on the circuit board substrate 1, and a supporting foot is fixedly connected to the bottom of the charging connector 2. The supporting foot at the bottom of the charging connector 2 passes through the connection through hole 101 and is fixed.

[0035] Through the above technical solution, a connection via 101 is provided on the circuit board substrate 1, and a support foot is provided at the bottom of the charging connector 2. When the charging connector 2 is soldered to the surface of the circuit board substrate 1 through the solder pad, the support foot and the connection via 101 cooperate to further improve the connection stability of the charging connector 2. When soldering the charging connector 2, the fluidity of the solder can also be prevented, thereby improving the soldering accuracy of the charging connector 2.

[0036] If the circuit board substrate 1 and the charging connector 2 are connected only through the soldering pad, the weight of the charging connector 2 may easily cause the connection between the circuit board substrate 1 and the charging connector 2 to become desoldered, soldered, or loose.

[0037] Specifically, the edge of one of the two battery connecting contact pins 4 does not exceed the edge of the circuit board substrate 1 , and the edge of the other battery connecting contact pin 4 extends to the outside of the edge of the circuit board substrate 1 .

[0038] Through the above technical solution, the two battery connection contacts 4 are set with different side lengths, the purpose of which is to enable the edge of one of the battery connection contacts 4 to contact the battery shell, so that the battery shell forms an electrode that cooperates with the battery cap 6 to form a positive and negative pole.

[0039] Specifically, a connection groove 3 is symmetrically opened at the end of the circuit board substrate 1 , and the connection groove 3 passes through the circuit board substrate 1 . The battery connection contact pin 4 is installed on the top of the connection groove 3 .

[0040] Through the above technical solution, the connection groove 3 is opened on the circuit board substrate 1, so that the axis of the battery connection contact 4 can be sunk through the connection groove 3, so that the height of the circuit board substrate 1 can be located at the axis of the rechargeable battery 7.

[0041] Specifically, the battery connection contact 4 includes a metal substrate 401 , which is welded on the circuit board substrate 1 . An arc-shaped support plate 402 is provided at the center of the metal substrate 401 , and the arc-shaped support plate 402 extends into the interior of the connection slot 3 .

[0042] Through the above technical solution, an arc-shaped support plate 402 is set in the center of the metal substrate 401, and the arc-shaped support plate 402 is recessed into the inside of the connecting groove 3, so that an arc-shaped surface can be formed. When the arc-shaped support plate 402 contacts the electrode of the rechargeable battery 7, the line contact can be converted into surface contact, thereby increasing the contact area between the electrode of the rechargeable battery 7 and the metal substrate 401, improving the stability of the connection and reducing the resistance by increasing the cross-section.

[0043] Specifically, elastic clips 403 are fixedly connected to both sides of the arc-shaped supporting plate 402 . The two elastic clips 403 are symmetrical to each other, and the two elastic clips 403 apply pressure to the middle of the arc-shaped supporting plate 402 to clamp the electrodes of the rechargeable battery 7 .

[0044] Through the above technical solution, the elastic clip 403 is used to wrap the electrodes of the rechargeable battery 7 from the side, thereby further increasing the contact area of the electrodes of the rechargeable battery 7 and improving the stability of the connection between the rechargeable battery 7 and the metal substrate 401.

[0045] Specifically, an auxiliary hole 404 is opened on the top of the elastic clip 403. The auxiliary holes 404 on both sides are symmetrical semicircles, and the interior of the auxiliary holes 404 is filled with solder to weld the electrodes of the rechargeable battery 7.

[0046] Through the above technical solution, the auxiliary hole 404 is used to facilitate fixing the rechargeable battery 7 to the circuit board substrate 1;

[0047] When fixing the rechargeable battery 7, the solder enters through the auxiliary hole 404, which can greatly reduce the difficulty of welding. If welding is performed directly, the solder is likely to flow and cause unstable welding. After the auxiliary hole 404 is set, the solder can be restricted by the auxiliary hole 404, thereby stably contacting the welding foot of the rechargeable battery 7 and the auxiliary hole 404, thereby improving the stability of welding.

[0048] During use, a circuit board substrate 1 is provided, and a charging connector 2 is soldered to the circuit board substrate 1 via a soldering pad. The circuit board substrate 1 is connected to the rechargeable battery 7 via the battery connection pin 4, and the charging connector 2 is connected to the battery cap 6. The circuit board substrate 1, the battery cap 6, and the rechargeable battery 7 are simultaneously encapsulated inside a battery housing, and a through hole adapted to the charging connector 2 is provided inside the battery housing. When in use, the rechargeable battery 7 can be charged by directly inserting a data cable through the through hole and connecting it to the charging connector 2, thereby achieving a convenient charging effect.

[0049] By using a metal substrate 401 to connect with the circuit board substrate 1 and the rechargeable battery 7, the circuit board substrate 1 and the rechargeable battery 7 can be electrically connected. At the same time, an arc-shaped support plate 402 is set on the metal substrate 401 to increase the contact area with the electrodes of the rechargeable battery 7. The arc-shaped support plate 402 and the elastic clip 403 are used to clamp the electrodes of the rechargeable battery 7, and the connection is performed using a soldering process, thereby achieving the effect of improving the connection stability.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board structure, comprising a circuit board substrate (1), wherein two ends of the circuit board substrate (1) are respectively connected to a battery cap (6) and a rechargeable battery (7); Its characteristics are: A charging connector (2) is welded to the front of the circuit board substrate (1), a battery connection contact pin (4) is fixedly connected to the edge of the circuit board substrate (1), and the interior of the battery connection contact pin (4) is connected to the electrode of the rechargeable battery (7); The back side of the circuit board substrate (1) is fixedly connected with a charging and discharging component (5); The battery cap (6) is mounted on an end of the circuit board substrate (1) away from the rechargeable battery (7), and the contact pins of the battery cap (6) are connected to the charging connector (2), and the battery cap (6) is electrically connected to one of the battery connection contact pins (4).

2. A circuit board structure according to claim 1, characterized in that: A connecting through hole (101) is provided on the circuit board substrate (1), a supporting foot is fixedly connected to the bottom of the charging connector (2), and the supporting foot at the bottom of the charging connector (2) passes through the connecting through hole (101) and is fixed; A cell test point (102) is also provided at the end of the circuit board substrate (1).

3. The circuit board structure according to claim 1, wherein: The edge of one of the two battery connection contact pins (4) does not exceed the edge of the circuit board substrate (1), and the edge of the other battery connection contact pin (4) extends to the outside of the edge of the circuit board substrate (1).

4. The circuit board structure according to claim 1, wherein: The end of the circuit board substrate (1) is symmetrically provided with a connection groove (3), the connection groove (3) passes through the circuit board substrate (1), and the battery connection contact pin (4) is installed on the top of the connection groove (3).

5. The circuit board structure according to claim 1, wherein: The battery connection contact pin (4) comprises a metal substrate (401), the metal substrate (401) is welded on the circuit board substrate (1), an arc-shaped support plate (402) is provided at the center of the metal substrate (401), and the arc-shaped support plate (402) extends to the inside of the connection groove (3).

6. The circuit board structure according to claim 5, characterized in that: Elastic clips (403) are fixedly connected to both sides of the arc-shaped support plate (402), the two elastic clips (403) are symmetrical to each other, and the two elastic clips (403) apply pressure to the middle of the arc-shaped support plate (402) to clamp the electrodes of the rechargeable battery (7).

7. The circuit board structure according to claim 6, characterized in that: An auxiliary hole (404) is provided on the top of the elastic clip (403), the auxiliary holes (404) on both sides are symmetrical semicircles, and solder is filled inside the auxiliary holes (404) to weld the electrodes of the rechargeable battery (7).

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