Patent Application
20230386982
This application claims the benefit of the filing date under 35 U.S.C. § 119(a)-(d) of Chinese Patent Application No. 202221318765.6, filed on May 30, 2022.
This present invention relates to a charging base lead frame, a charging base lead frame assembly comprising the charging base lead frame, and a charging base including the charging base lead frame or the charging base lead frame assembly.
In the prior art, the charging base on new energy vehicles typically includes a housing, a charging terminal, a signal terminal, a temperature sensor, and a lead frame. The charging terminal and signal terminal are installed in the housing. The temperature sensor is installed on the lead frame. The lead frame includes a frame body and multiple leads fixed to the frame body. The signal terminal and temperature sensor are electrically connected to the corresponding leads in the lead frame. The lead electrically connected to the signal terminal usually includes a lead body, a pair of elastic cantilevers, and a pair of bridging arms. The pair of bridging arms connect the fixed ends of the pair of elastic cantilevers to the lead body. The signal terminal is clamped between the pair of elastic cantilevers of the lead wire.
In the prior art, the pair of elastic cantilevers and the pair of bridging arms on the lead electrically connected to the signal terminal are exposed from the outside of the frame body. Therefore, when mating the pair of elastic cantilevers with the signal terminal, the roots (fixed ends) of the elastic cantilevers are prone to folding backwards. In the prior art, in order to prevent the root of the elastic cantilever from folding backwards, the width of the bridging arm connected to the root of the elastic cantilever is usually increased. Although increasing the width of the bridging arm will enhance the strength of the root of the elastic cantilever, it will reduce the effective length and elasticity of the elastic cantilever.
A charging base lead frame includes a frame body having a receiving slot and a plurality of leads fixed to the frame body. The leads include a first lead for electrical connection to a terminal of a charging base. The first lead includes a lead body fixed to the frame body, a pair of elastic cantilevers connected to the lead body and suspended in the receiving slot for clamping the terminal, and a pair of bridging arms respectively connecting a pair of fixed ends of the pair of elastic cantilevers to the lead body. At least a portion of the fixed ends of each of the elastic cantilevers is wrapped in the frame body.
Features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:
Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein like reference numerals refer to like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will convey the concept of the disclosure to those skilled in the art.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.
The charging base lead frame includes: a frame body 2 and a plurality of leads 1, 1′. A receiving slot 21 is formed on the frame body 2. Multiple leads 1 and 1′, shown in detail in
The multiple leads 1, 1′ include a first lead 1 for electrical connection to a terminal 3 of the charging base. The first lead 1, as shown in
As shown in
However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, a portion of the bridging arm 111 and/or a portion of the fixed end 110a of the elastic cantilever 110 are wrapped in the frame body 2. The part of the fixed end 110a of the elastic cantilever 110 and the part of the bridging arm 111 that are not wrapped in the frame body 2 are suspended in the receiving slot 21.
As shown in
As shown in
The frame body 2 has a protruding portion 211, shown in
The frame body 2 has a front and a back, and the frame body 2 has a limit beam 212 located on its back and bridging between two sides of the receiving slot 21, as shown in
As shown in
The multiple leads 1, 1′ also include a second lead 1′, shown in
Each of the multiple leads 1 and 1′ is an integrated stamping molded part, and the frame body 2 and the multiple leads 1 and 1′ are formed into an integrated injection molded part, so that the injection molded frame body 2 to directly engage with multiple leads 1 and 1′. This can reduce manufacturing costs.
In an embodiment, a charging base lead frame assembly is also disclosed. The charging base lead frame assembly includes: the above charging base lead frame and a temperature sensor. The temperature sensor is installed on the frame body 2 of the charging base lead frame to detect the temperature of the charging terminal of the charging base. The temperature sensor is electrically connected to the second lead 1′ in the charging base lead frame.
In an embodiment, a charging base is also disclosed. The charging base includes a housing, the above charging base lead frame, and a terminal 3. The charging base lead frame is installed in the housing. The terminal 3 is installed in the housing and clamped between the pair of elastic cantilevers 110 of the first lead 1 of the charging base lead frame.
In an embodiment, a charging base is also disclosed. The charging base includes a housing, the above charging base lead frame assembly, and a terminal 3. The charging base lead frame is installed in the housing. The terminal 3 is installed in the housing and clamped between the pair of elastic cantilevers 110 of the first lead 1 of the charging base lead frame. In an embodiment, the aforementioned terminal 3 can be the signal terminal of the charging station. The charging base also includes a charging terminal. The charging terminal is installed in the housing and passes through the charging base lead frame through the through hole 22 on the frame body 2.
It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrative, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.
Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.
As used herein, an element recited in the singular and proceeded with the word “a” or “an” should be understood as not excluding plural of said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to “one embodiment” of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments “comprising” or “having” an element or a plurality of elements having a particular property may include additional such elements not having that property.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202221318765.6 | May 2022 | CN | national |
