阅读说明：本技术 一种电池连接器 (Battery connector ) 是由 米家雄 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种电池连接器,其包括：间隔排布的多个弹性探针；与所述探针固定配合、支撑所述探针的绝缘座体；以及用于连接电路板的SMT焊接部；其中,所述SMT焊接部配置于所述探针的中部,以便当所述电池连接器安装于电路板时,所述探针的末端能够陷入电路板。本电池连接器与电路板组合后的整体厚度小于电路板和电池连接器二者的厚度之和,有利于在厚度较薄的设备中使用。(The invention discloses a battery connector, which comprises: a plurality of elastic probes arranged at intervals; the insulating base is fixedly matched with the probe and used for supporting the probe; and an SMT weld part for connecting the circuit board; wherein the SMT solder portion is disposed at a middle portion of the probe so that a tip end of the probe can sink into a circuit board when the battery connector is mounted to the circuit board. The whole thickness of the combined battery connector and circuit board is smaller than the sum of the thicknesses of the circuit board and the battery connector, and the combined battery connector and circuit board is beneficial to being used in equipment with thinner thickness.)

1. A battery connector comprising:

a plurality of elastic probes (1) arranged at intervals;

the insulating base body (2) is fixedly matched with the probe (1) and supports the probe (1); and

an SMT soldering part (3) for connecting a circuit board (4);

characterized in that the SMT solder (3) is arranged in the middle of the probe (1) so that the tip of the probe (1) can sink into the circuit board (4) when the battery connector is mounted on the circuit board (4).

2. The battery connector according to claim 1, wherein the SMT solder (3) on the probe (1) is located at a distance from the tip of the probe (1) equal to the thickness of the circuit board (4).

3. The battery connector according to claim 1, wherein the SMT solder (3) on the probe (1) is located at a distance from the tip of the probe (1) greater than the thickness of the circuit board (4).

4. The battery connector according to claim 1, further comprising the circuit board (4), wherein the SMT solder portion (3) is soldered to the circuit board (4), and wherein the circuit board (4) is provided with a relief hole (41) corresponding to the probe (1).

5. The battery connector according to claim 1, wherein the SMT weld (3) is a sheet-like circular ring structure.

6. Battery connector according to claim 5, characterized in that the SMT weld (3) is integrally formed with the probe (1) where it is located.

7. The battery connector according to claim 1, wherein the head (11) of the probe (1) protrudes from the insulating housing (2), the head (11) can retract toward the probe (1) against the pressure of a spring (13) inside the probe (1) when an external force is applied, and the length of the head (11) protruding from the insulating housing (2) is greater than or equal to the maximum retractable length of the head (11).

Technical Field

The invention relates to the field of battery connectors, in particular to a battery connector comprising an insulating base and an elastic probe.

Background

There are various battery connectors, for example, a battery connector composed of an insulating housing and a metal dome, and a battery connector composed of an insulating housing and an elastic probe.

Fig. 1 and 2 show the structure of a battery connector composed of an insulating housing and an elastic probe, and fig. 3 shows the state after the battery connector is connected to a circuit board.

As shown in fig. 1 and 2, this battery connector includes: a plurality of elastic probes 1 arranged at intervals; an insulating base body 2 fixedly matched with the probe 1 and used for supporting the probe 1; and an SMT solder portion 3 for connecting the circuit board 4. The battery connector can be coupled to the circuit board 4 by soldering the SMT solder portion 3 to the circuit board 4, and the coupled state is shown in fig. 3.

Assuming that the thickness of the circuit board 4 is b and the length of the probe 1 is a, it can be seen from fig. 3 that the height of the space required for the battery connector position is the sum of a and b.

The battery connector requires a large space height, cannot be used in a device with a small thickness, and is expected to be further improved.

Disclosure of Invention

The present invention is directed to a battery connector that solves the above-mentioned technical problems of the related art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a battery connector, comprising:

a plurality of elastic probes arranged at intervals;

the insulating base is fixedly matched with the probe and used for supporting the probe; and

an SMT soldering part for connecting the circuit board;

wherein the SMT solder portion is disposed at a middle portion of the probe so that a tip end of the probe can sink into a circuit board when the battery connector is mounted to the circuit board.

In the above battery connector, preferably, the SMT solder portion on the probe is located at a distance equal to the thickness of the circuit board from the tip of the probe.

In the above battery connector, preferably, the SMT solder portion on the probe is located at a distance greater than the thickness of the circuit board from the tip of the probe.

In the above battery connector, preferably, the battery connector further includes the circuit board, the SMT solder joint with the circuit board welding, the circuit board corresponds the probe configuration dodges the hole.

In the above battery connector, preferably, the SMT weld portion has a sheet-like annular structure.

In the above battery connector, preferably, the SMT solder is integrally formed with the probe.

In the above battery connector, preferably, the head of the probe extends from the insulating base, and when the probe is subjected to an external force, the head can retract toward the probe against the pressure of a spring inside the probe, and the length of the head extending out of the insulating base is greater than or equal to the maximum retractable length of the head.

Compared with the prior art, the invention has at least the following beneficial effects:

the whole thickness of the combined battery connector and circuit board is smaller than the sum of the thicknesses of the circuit board and the battery connector, and the combined battery connector and circuit board is beneficial to being used in equipment with thinner thickness.

Drawings

Fig. 1 is a schematic structural view of a conventional battery connector;

FIG. 2 is a sectional view thereof taken along line A-A;

FIG. 3 is a state diagram after it is combined with a circuit board;

fig. 4 is a schematic structural view of a battery connector of the first embodiment;

fig. 5 is a B-B sectional view of the battery connector of the first embodiment;

FIG. 6 is a schematic view of an SMT bond on a probe;

fig. 7 is a state diagram after the battery connector of the first embodiment is coupled with the circuit board;

fig. 8 is a sectional view of a battery connector of the second embodiment;

fig. 9 is a state diagram after the battery connector of the second embodiment is coupled with the circuit board;

reference numerals:

1. a probe; 11. a head portion; 12. a body part; 13. a spring; 2. an insulating base body; 3. SMT welding part; 4. a circuit board; 41. avoiding holes; a. the length of the probe; b. the thickness of the circuit board.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

The first embodiment:

referring to fig. 4 to 7, the battery connector includes: a plurality of elastic probes 1, an insulating base 2 and an SMT welding part 3.

The elastic probe 1 comprises a head part 11 and a body part 12 with a hollow structure, wherein the head part 11 is sleeved with the body part 12, the head part 11 can move relative to the body part 12 along the central axis direction of the probe 1, a spring 13 is arranged in the body part 12, and the spring 13 provides power for the head part 11 to extend out of the body part 12 so as to keep the head part 11 in an extending state. Such elastic probes 1 are known in the art.

The number of the elastic probes 1 can be flexibly set according to actual needs. In this embodiment, the number of the elastic probes 1 is eight, and the eight probes 1 are arranged at intervals.

The insulating base body 2 is fixedly matched with each probe 1 to support the probes 1. The insulating base 2 can be made of materials including, but not limited to, plastic, ceramic, glass, acrylic, etc. The shape of the end of the insulating base 2 is not limited, and may be rectangular, circular, D-shaped, polygonal, etc.

SMT is an english abbreviation for surface mount technology. The SMT solder portion 3 is used for the probe 1 and the circuit board 4 to perform SMT soldering. As shown in fig. 5 and 6, the SMT solder 3 is disposed in the middle of the probe 1. The shape of the SMT solder 3 may be any sheet-like structure. The SMT solder portion 3 in this embodiment is specifically a sheet-like annular structure. The SMT solder portion 3 is integrally formed with the probe 1, and more specifically, is integrally formed with the body portion 12 of the probe 1.

With further reference to fig. 7, the SMT solder portion 3 is disposed at the above-mentioned position of the probe 1 so that the tip of the probe 1 can sink into the circuit board 4 after the SMT solder portion 3 of the present battery connector is soldered to the circuit board 4. Thus, the overall height of the battery connector in combination with the circuit board 4 is equal to the length a of the probe 1.

Whereas in the prior art the overall height of the battery connector combined with the circuit board 4 is the sum of the length a of the probe 1 and the thickness b of the circuit board 4. It can be seen that the configuration of the battery connector of the first embodiment enables the height of the space required for the location of the battery connector to be reduced, thereby enabling the battery connector to be applied to a device having a small thickness.

In the above battery connector, the head 11 of the probe 1 extends from the insulating base 2, and when the external force is applied, the head 11 can retract to the probe 1 against the pressure of the spring 13 inside the probe 1, and the probe 1 has a retractable structure, so that the probe can be reliably electrically connected with the butt joint portion. In order to further enable the head 11 of the probe 1 to be reliably contacted and connected with the butting part under any condition, the length of the head 11 of the probe 1 extending out of the insulating base body 2 is set as follows: the length of the head 11 extending out of the insulation base 2 is greater than or equal to the maximum retractable length of the head 11.

With further reference to fig. 7, in the first embodiment, the SMT solder 3 on the probe 1 is located at a distance from the tip of the probe 1 equal to the thickness of the circuit board 4. This allows the rear of the circuit board 4 to be free of projections after the battery connector is coupled to the circuit board 4, which can be suitable for applications requiring the rear of the circuit board 4 to be free of projections.

As shown in fig. 7, the circuit board 4 is provided with a relief hole 41 at a position corresponding to the probe 1.

Second embodiment:

referring to fig. 8 and 9, the battery connector of the second embodiment is substantially the same as the first embodiment except that in the second embodiment, the distance from the SMT solder joint 3 of the probe 1 to the end of the probe 1 is greater than the thickness of the circuit board 4, and after the probe 1 is combined with the circuit board 4, a portion of the probe 1 protrudes from the back of the circuit board 4, so that the length of the probe 1 exposed out of the face of the circuit board 4 is reduced.

In some applications, for example, when there is a gap for accommodating the probe 1 in the battery connector mounting position of the device, the portion of the probe 1 protruding from the back of the circuit board 4 can be recessed in the gap, which further reduces the height of the space required for the battery connector mounting position, and is more beneficial to the thinning of the device.

As another embodiment, the battery connector further includes a circuit board 4, as shown in fig. 7 or 9, the SMT solder portion 3 is soldered to the circuit board 4, and the circuit board 4 is provided with an avoiding hole 41 corresponding to the probe 1.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for the purpose of helping those skilled in the art understand the present invention, and is not to be construed as limiting the scope of the present invention. Various modifications, equivalent changes, etc. made by those skilled in the art under the spirit of the present invention shall be included in the protection scope of the present invention.