Terminal installation structure of charging control box

Abstract

The utility model provides a terminal mounting structure of a charging control box, which is used for connecting a relay in the charging control box and one end of a charging gun cable, and comprises a fixing part, at least one power terminal and at least one signal terminal, the fixing part comprises a fixing frame, the fixing frame is provided with first clamping structures in one-to-one correspondence with the power terminals, and the first clamping structures are arranged on the fixing frame. The second clamping structure is used for clamping at least one signal terminal; one end of the power terminal is connected with the normally-open end of the relay through the first busbar, and the other end is connected with a power wire of a charging gun cable. One end of the signal terminal is connected with the circuit board in the charging control box through the second busbar, and the other end of the signal terminal is connected with a signal wire of a charging gun cable. According to the terminal installation structure of the charging control box, the power terminal and the signal terminal are both arranged on the fixing part to form a whole with the fixing part and then are electrically connected with the charging control box and the charging gun cable, assembly is simple and convenient, and stable power transmission and signal transmission in the charging process can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging equipment, and in particular to a terminal installation structure of a charging control box. Background Art

[0002] With the rapid development and popularization of new energy vehicles, the research and development of charging guns for electric vehicles is particularly important. The charging gun includes a control box and a charging gun head and a charging plug connected to the two ends of the control box by cables. The conductive part of the existing cable is fixedly connected to the conductive terminal in the control box by welding or other means and cannot be disassembled. In actual application, the charging gun is frequently used and the charging box will be in vibration or shaking for a long time. If there is a problem with the stability of the electrical connection of the terminal, it is not convenient to replace it. Moreover, both the signal terminal and the power terminal are connected to the corresponding wires one by one, and the assembly efficiency is low. Moreover, the terminals after connection do not have a corresponding supporting structure, are relatively loose, and have low structural stability. Utility Model Content

[0003] In view of the above problems in the prior art, the purpose of this article is to provide a terminal mounting structure of a charging control box, which is used to connect a relay in the charging control box and one end of a charging gun cable, and includes a fixing portion, at least one power terminal and at least one signal terminal.

[0004] The fixing portion includes a fixing frame, the fixing frame is provided with a first clamping structure corresponding to each of the power terminals, and a second clamping structure for clamping at least one of the signal terminals;

[0005] One end of the power terminal is connected to the normally open end of the relay through the first busbar, and the other end is connected to the power wire of the charging gun cable;

[0006] One end of the signal terminal is connected to the circuit board in the charging control box through the second busbar, and the other end is connected to the signal wire of the charging gun cable.

[0007] Preferably, it also includes a grounding terminal, the fixing frame is provided with a third clamping structure, the grounding terminal is clamped on the third clamping structure, and one end is electrically connected to the circuit board through the third busbar, and the other end is connected to the grounding wire of the charging gun cable.

[0008] Preferably, the power terminal comprises a plug-in end plugged into the first busbar, a crimping end crimped into the power wire, and a connecting portion connecting the plug-in end and the crimping end.

[0009] Preferably, the first clamping structure clamps the connecting portion.

[0010] Preferably, the connecting portion is flat in shape and is integrally stamped and formed with the plug-in end and the crimping end.

[0011] Preferably, the fixing portion is elastic.

[0012] Preferably, the fixing portion has a weight-reducing structure with a hollow middle portion.

[0013] Preferably, the fixing portion further includes a peripheral protection portion, which is injection molded on the fixing frame and wraps a portion of the end of the charging gun cable, a portion of the fixing frame, the power terminal and the signal terminal.

[0014] Preferably, the charging control box is provided with a through hole, the end portion enters into the charging control box through the through hole, and the peripheral protection portion is fixedly connected to the through hole and seals the through hole.

[0015] Preferably, a protrusion or a groove extending along the axial direction of the charging gun cable is formed on the peripheral protection portion, and a groove or a protrusion matching the protrusion or the groove is provided on the inner wall of the shell of the charging control box.

[0016] According to the terminal installation structure of the charging control box disclosed in the present invention, the power terminal and the signal terminal are both arranged on the fixed part to form a whole with it, and then electrically connected to the charging control box and the charging gun cable. The assembly is simple and convenient, and stable power transmission and signal transmission can be ensured during the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a stereoscopic diagram of the terminal mounting structure of the charging control box according to a preferred embodiment of the present disclosure.

[0019] Figure 2 for Figure 1 A partial enlarged view of .

[0020] Figure 3 It is a partial stereoscopic view of the charging control box after a portion of the shell is removed according to a preferred embodiment of the present disclosure, in which the peripheral protection part is shown.

[0021] Figure 4 for Figure 1 A three-dimensional diagram of the medium power terminal, signal terminal, and ground terminal.

[0022] Description of Reference Numerals

[0023] Charging gun cable 100 Charging control box 200

[0024] Fixing part 10 Fixing frame 11

[0025] First clamping structure 12 Second clamping structure 13

[0026] Third clamping structure 14 Peripheral protection portion 15

[0027] Power terminal 20 Signal terminal 30

[0028] Ground terminal 40 Plug terminal 201

[0029] Crimping end 202 Connecting portion 203

[0030] Weight reduction structure 16 groove 151

[0031] First busbar 50 Second busbar 60

[0032] Third busbar 70 Shell 80

[0033] Sealing ring 90 Circuit board 201 DETAILED DESCRIPTION

[0034] The preferred embodiments of the present disclosure are described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure. In addition, the embodiments and features in the embodiments of the present disclosure may be combined with each other if no conflict occurs.

[0035] like Figures 1 to 4 As shown, the present disclosure provides a terminal mounting structure of a charging control box 200 of a preferred embodiment, which is used to connect the relay in the charging control box 200 and one end of the charging gun cable 100, including a fixing part 10, at least one power terminal 20 and at least one signal terminal 30, the fixing part 10 includes a fixing frame 11, the fixing frame 11 is provided with a first clamping structure 12 corresponding to each power terminal 20, and a second clamping structure 13 for clamping at least one signal terminal 30; one end of the power terminal 20 is connected to the normally open end of the relay through the first busbar 50, and the other end is connected to the power wire of the charging gun cable 100; one end of the signal terminal 30 is connected to the circuit board 201 in the charging control box 200 through the second busbar 60, and the other end is connected to the signal wire of the charging gun cable 100.

[0036] Specifically, two first clamping structures 12 ( Figure 2Only one first clamping structure 12 and a corresponding power terminal 20 are revealed, each first clamping structure 12 has a clamping groove for clamping each power terminal 20; a second clamping structure 13 is also provided at the bottom of the fixing frame 11, such as Figure 2 As shown, the second clamping structure 13 has a plurality of clamping grooves for clamping a plurality of signal terminals 30 .

[0037] Therefore, the power terminal 20 and the signal terminal 30 are installed on the fixing frame 11 using the first clamping structure 12 and the second clamping structure 13, so that the power terminal 20, the signal terminal 30 and the fixing frame 11 form a whole, and the whole is then electrically connected between each terminal and the charging gun cable 100 and the charging control box 200 through the first busbar 50 and the second busbar 60. The assembly is simple and convenient, and stable power transmission and signal transmission can be guaranteed during the charging process.

[0038] In some embodiments, the terminal mounting structure of the charging control box 200 further includes a ground terminal 40, such as Figure 2 As shown, the fixing frame 11 is provided with a third clamping structure 14 , the grounding terminal 40 is clamped on the third clamping structure 14 , and one end is electrically connected to the circuit board 201 through the third busbar 70 , and the other end is connected to the grounding wire of the charging gun cable 100 .

[0039] In this way, stable power transmission is achieved during the charging process through the power terminal 20 (the charging control box 200 controls whether power transmission is performed during the charging process by controlling the opening and closing of the relay), stable signal transmission is achieved through the signal terminal 30 (it can be understood that the temperature signal, guide signal, etc. are transmitted to the control chip on the circuit board 201 in the charging control box 200 through the signal terminal 30), and the grounding connection of the charging control box 200 and the charging gun is achieved through the ground terminal 40.

[0040] Specifically, Figure 4 As shown, the power terminal 20 includes a plug-in end 201 plugged into the first busbar 50, a crimping end 202 crimped with the power wire, and a connecting portion 203 connecting the plug-in end 201 and the crimping end 202. More specifically, the first clamping structure 12 clamps the connecting portion 203 of the power terminal 20. In this way, one end of the power terminal 20 is configured as a plug-in end 201 plugged into the first busbar 50, and the other end is configured as a crimping end 202 crimped with the power wire, which facilitates the installation between the power terminal 20 and the charging control box 200 and the charging gun cable 100, is simple to operate, and can also make the fixation of the power terminal 20 more stable to ensure the stability of the electrical connection.

[0041] It is understandable that Figure 3As shown, the signal terminal 30 may also have a structure similar to that of the power terminal 20. That is, the signal terminal 30 may also have a crimping end for crimping with the signal wire and a plugging end for plugging with the second busbar 60.

[0042] In some embodiments, Figure 4 As shown, the connection portion 203 is flat and is stamped integrally with the plug-in terminal 201 and the crimping terminal 202. Thus, the power terminal 20 can be processed by stamping technology, which reduces the processing cost.

[0043] In some embodiments, the fixing portion 10 of the terminal mounting structure of the charging control box 200 is elastic. Therefore, when the charging control box 200 is accidentally subjected to external force, the terminals mounted on the fixing portion 10 are subjected to shock absorption and buffering, thereby better ensuring the stability of the terminal electrical connection.

[0044] In some embodiments, Figure 2 As shown, the fixing portion 10 of the terminal mounting structure of the charging control box 200 has a hollowed-out weight-reducing structure 16. Thus, by providing the weight-reducing structure 16, the weight of the terminal mounting structure of the charging control box 200 can be reduced and the cost can be saved.

[0045] In some embodiments, Figure 3 As shown, the fixing part 10 also includes a peripheral protection part 15, which is injection molded on the fixing frame 11 and wraps part of the end of the charging gun cable 100, part of the fixing frame 11, the power terminal 20 and the signal terminal 30. Thus, the peripheral protection part 15 is formed by the injection molding process to wrap the fixing frame 11, the power terminal 20 and the signal terminal 30 arranged on the fixing frame 11, and the end of the charging gun cable 100 into a whole, which is beneficial to the stability of the electrical connection.

[0046] In some embodiments, it can be understood that a through hole (not shown in the figure) is provided on the charging control box 200, and the end of the charging gun cable 100 enters the charging control box 200 through the through hole, and the peripheral protection portion 15 is fixedly connected to the through hole and seals the through hole. Thus, the through hole is sealed, and dust and other debris outside the charging control box 200 will not enter the charging control box 200 and cause pollution to the terminal mounting structure or even the circuit board 201.

[0047] In some embodiments, a protrusion or a groove extending in the axial direction of the charging gun cable 100 is formed on the peripheral protection portion 15 , and the inner wall of the charging control box 200 is provided with a groove or a protrusion matching the protrusion or groove.

[0048] Specifically, in this embodiment, Figure 3As shown, a groove 151 extending along the axial direction of the charging gun cable 100 is formed on the peripheral protection portion 15, and a protrusion matching the groove 151 is provided on the inner wall of the shell 80 of the charging control box 200. Thus, a stable connection between the charging gun cable 100 and the charging control box 200 can be achieved through the limited fit between the protrusion and the groove 151. Preferably, a matching sealing ring 90 can be further provided between the peripheral protection portion 15 and the inner wall of the shell 80 of the charging control box 200 to ensure the sealing performance of the charging control box 200.

[0049] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0050] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0051] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this article.

[0053] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0054] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this article.

[0055] In addition, each functional unit in each embodiment of this invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

[0056] Specific embodiments are used in this article to illustrate the principles and implementation methods of this article. The description of the above embodiments is only used to help understand the methods and core ideas of this article. At the same time, for general technicians in this field, according to the ideas of this article, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on this article.

Claims

1. A terminal mounting structure of a charging control box, used to connect a relay in the charging control box and one end of a charging gun cable, characterized in that: comprising a fixing portion, at least one power terminal and at least one signal terminal, The fixing portion includes a fixing frame, the fixing frame is provided with a first clamping structure corresponding to each of the power terminals, and a second clamping structure for clamping at least one of the signal terminals; One end of the power terminal is connected to the normally open end of the relay through the first busbar, and the other end is connected to the power wire of the charging gun cable; One end of the signal terminal is connected to the circuit board in the charging control box through the second busbar, and the other end is connected to the signal wire of the charging gun cable.

2. The terminal mounting structure of a charging control box according to claim 1, characterized in that: It also includes a grounding terminal, the fixing frame is provided with a third clamping structure, the grounding terminal is clamped on the third clamping structure, and one end is electrically connected to the circuit board through the third busbar, and the other end is connected to the grounding wire of the charging gun cable.

3. The terminal mounting structure of a charging control box according to claim 1, characterized in that: The power terminal includes a plug-in end plugged into the first busbar, a crimping end crimped into the power wire, and a connecting portion connecting the plug-in end and the crimping end.

4. A terminal mounting structure of a charging control box according to claim 3, characterized in that: The first clamping structure clamps the connecting portion.

5. The terminal mounting structure of a charging control box according to claim 4, characterized in that: The connecting portion is flat in shape and is integrally stamped and formed with the plug-in end and the crimping end.

6. The terminal mounting structure of a charging control box according to claim 1, characterized in that: The fixing portion is elastic.

7. The terminal mounting structure of a charging control box according to claim 1, characterized in that: The fixing part has a weight-reducing structure with a hollow middle portion.

8. The terminal mounting structure of a charging control box according to claim 1, characterized in that: The fixing portion further includes a peripheral protection portion, which is injection-molded on the fixing frame and wraps a portion of the end of the charging gun cable, a portion of the fixing frame, the power terminal, and the signal terminal.

9. The terminal mounting structure of a charging control box according to claim 8, characterized in that: The charging control box is provided with a through hole, the end portion enters into the charging control box through the through hole, and the peripheral protection portion is fixedly connected to the through hole and seals the through hole.

10. The terminal mounting structure of a charging control box according to claim 8, characterized in that: A protrusion or a groove extending along the axial direction of the charging gun cable is formed on the peripheral protection portion, and a groove or a protrusion matching the protrusion or the groove is provided on the inner wall of the shell of the charging control box.

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