New energy slow charging line diagnosis test bench

Abstract

The utility model provides a new energy slow charging wire diagnosis test bench, which relates to teaching equipment and comprises a bench body, and an air switch, a wall-mounted charging box, an AC-DC power supply module, a digital display potentiometer and two national standard seven-hole charging vehicle interfaces are sequentially mounted on the bench body. The input end of the wall-mounted charging box and the input end of the AC-DC power supply module are respectively connected with the output end of the air switch; a front-end control panel and a rear-end shell of the wall-mounted charging box are separated from each other and are both mounted on the rack body; the power supply input end of the digital display potentiometer is connected with the power supply output end of the AC-DC power supply module; pE ends of the two national standard seven-hole charging vehicle interfaces are respectively connected with an RA end of the digital display potentiometer; cP ends of the two national standard seven-hole charging vehicle interfaces are respectively connected with an RB end of the digital display potentiometer; the vehicle interface detection device can effectively detect related contents of the vehicle interface, does not need to be provided with a charger, a lithium battery and the like, and is low in preparation cost.

Description

Technical Field

[0001] The utility model relates to teaching equipment, in particular to a new energy slow charging line diagnosis test bench. Background Art

[0002] New energy vehicles are becoming the mainstream means of transportation, and the charging cable part is the direct source of energy for new energy vehicles. Therefore, its working principle, fault detection and other contents are the key teaching contents of the automotive major in automotive vocational colleges.

[0003] Although CN216647627U discloses a teaching stand for a new energy vehicle AC slow charging system, and displays the charging process by inserting a charging plug into a charging socket, this display method cannot display the relevant working parameters of the on-board charger, and cannot detect the relevant information of the charging socket.

[0004] Therefore, it is urgent to provide a new energy slow charging line diagnostic test bench that can be used for charging socket related content detection at low cost. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a new energy slow charging line diagnostic test bench to solve technical problems in the prior art such as difficulty in detecting related contents of charging sockets.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The application provides a new energy slow charging line diagnostic test bench, including a bench body, on which an air switch, a wall-mounted charging box, an AC-DC power supply module, a digital display potentiometer and two national standard seven-hole charging vehicle interfaces are sequentially installed;

[0010] The output end of the air switch is connected to an external power supply;

[0011] The input end of the wall-mounted charging box and the input end of the AC-DC power module are respectively connected to the output end of the air switch; and the front control panel of the wall-mounted charging box is separated from the rear housing and both are installed on the stand body;

[0012] The power input terminal of the digital display potentiometer is connected to the power output terminal of the AC-DC power module;

[0013] The PE terminals of the two national standard seven-hole charging vehicle interfaces are respectively connected to the RA terminals of the digital display potentiometer;

[0014] The CP ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the RB ends of the digital display potentiometer.

[0015] Further, it also includes a single-phase dual-display meter;

[0016] The L ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the L ends of the single-phase dual-display meter;

[0017] The N ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the N ends of the single-phase dual-display meter.

[0018] Furthermore, it also includes an intermediate relay, no less than 6 sets of running light groups and a running light controller;

[0019] The L terminal and N terminal of the intermediate relay are respectively connected to the L terminal and N terminal of the single-phase dual-display meter;

[0020] The first common terminal of the intermediate relay is connected to the positive electrode access terminal of the running light controller;

[0021] The normally open contact corresponding to the first common terminal in the intermediate relay is connected to the positive output terminal in the power output terminal of the AC-DC power module;

[0022] The negative electrode output terminal in the power output terminal of the AC-DC power supply module is connected to the negative electrode access terminal of the running light controller;

[0023] The water flow lamp group includes two LED lamp beads connected in parallel;

[0024] Each of the running light groups is respectively connected to a running light controller;

[0025] All the running lights are arranged in a row and arranged between the digital display potentiometer and one of the national standard seven-hole charging vehicle interfaces.

[0026] Furthermore, it also includes a voice broadcast module;

[0027] The power input terminal of the voice broadcast module is connected to the power output terminal of the AC-DC power module;

[0028] The second common terminal of the intermediate relay is connected to the positive output terminal in the power output terminal of the AC-DC power module;

[0029] The normally open contact corresponding to the second common terminal in the intermediate relay is connected to the trigger terminal of the voice broadcast module.

[0030] Furthermore, all the LED lamp beads are arranged in two rows.

[0031] Furthermore, a first display panel is provided on the front end surface of the stand body;

[0032] The first display board is in a vertical shape;

[0033] The air switch and the wall-mounted charging box are both installed on the upper part of the front end surface of the first display panel;

[0034] The digital display potentiometer, two national standard seven-hole charging vehicle interfaces, and single-phase dual display meters are installed at the lower part of the front end surface of the first display board;

[0035] A reserved exhibition area is arranged in the middle of the front end surface of the first exhibition board.

[0036] Furthermore, a second display panel is provided on the front end surface of the stand body;

[0037] The second display board is arranged below the first display board, and its bottom end is inclined forward;

[0038] The second display board is drawn with a charging mode 3 connection method B control circuit guidance principle diagram.

[0039] (III) Beneficial effects

[0040] The new energy slow charging line diagnostic test bench provided by the utility model has the following beneficial effects compared with the prior art:

[0041] By setting two national standard seven-hole charging vehicle interfaces and other operations, the vehicle interface related contents can be effectively detected; and by setting a digital display potentiometer and the like, the adjustment simulation of charging related parameters can be effectively performed to realize the display of the charging process, thus avoiding the disadvantage of the inability to adjust related parameters in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of the structure of a new energy slow charging line diagnostic test bench provided in an embodiment;

[0044] Figure 2 This is a schematic diagram of the connection relationship between the air switch, digital display potentiometer, etc. in the embodiment;

[0045] Figure 3 It is a guiding principle diagram of the control circuit of charging mode 3 connection mode B drawn on the second exhibition board in the embodiment.

[0046] In the figure: 1. Stand body; 2. Air switch; 3. Wall-mounted charging box; 4. AC-DC power supply module; 5. Digital display potentiometer; 6. National standard seven-hole charging vehicle interface; 7. Single-phase dual display meter; 8. Intermediate relay; 9. Running light group; 10. Running light controller; 11. Voice broadcast module; 12. First exhibition board; 13. Second exhibition board. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] In order to solve the defects of the prior art in which a charging plug is inserted into a charging socket (the charging socket is connected to a lithium battery via a charger), such as high equipment preparation cost and inability to detect relevant information of the charging socket, the main idea of ​​the present application is to provide a new energy slow charging line diagnostic test bench that utilizes components such as a digital display potentiometer 5 and two national standard seven-hole charging vehicle interfaces 6 to form a new energy slow charging line diagnostic test bench that can detect relevant information.

[0049] In order to facilitate a clear understanding of the technical solution of the present application, the technical solution of the present application will be described in detail below in conjunction with specific embodiments and drawings of the specification.

[0050] Example

[0051] Combined with Figure 1-3 The present embodiment provides a new energy slow charging line diagnostic test bench, which comprises a bench body 1; in the present embodiment, the bench body 1 is formed by splicing aluminum alloy profiles.

[0052] Secondly, an air switch 2, a wall-mounted charging box 3, an AC-DC power supply module 4, a digital potentiometer 5 and two national standard seven-hole charging vehicle interfaces 6 are installed in sequence on the stand body 1.

[0053] In this embodiment, the wall-mounted charging box 3 uses a wall-mounted charging box 3 with a model of EVA03K3G / 01 and a brand of BYD. Its front control panel is separated from the rear end shell (the main circuit components are installed in the rear end shell, and the front end of the rear end shell is open, so as to facilitate related testing and teaching, and the charging cable and charging gun connected to the rear end shell are wound on the winding structure), and are both installed on the stand body 1.

[0054] The input end of the air switch 2 is connected to an external power source for supplying power to the entire device.

[0055] The input end of the wall-mounted charging box 3 and the input end of the AC-DC power module 4 (CDKU-S50W 220V to 12V) are respectively connected to the output end of the air switch 2; the power input end of the digital display potentiometer 5 is connected to the power output end of the AC-DC power module 4;

[0056] The PE ends of the two national standard seven-hole charging vehicle interfaces 6 are respectively short-connected with the RA of the digital display potentiometer 5 , and the CP ends of the two national standard seven-hole charging vehicle interfaces 6 are respectively connected with the RB end of the digital display potentiometer 5 .

[0057] Working principle:

[0058] When the device is working, the air switch 2 is turned on to supply power to the entire device; then the charging gun is picked up and inserted into a national standard seven-hole charging vehicle interface 6. At this time, the AC-DC power module 4 supplies power to the digital display potentiometer 5.

[0059] By adjusting the corresponding resistance value of the digital display potentiometer 5, the relevant parameters of the on-board charger can be displayed. For example, when the resistance value is higher or lower than the target value, charging cannot be achieved. When it is equal to the target value, charging can be performed. Secondly, with the help of the setting of two national standard seven-hole charging vehicle interfaces 6, when one national standard seven-hole charging vehicle interface 6 is working, relevant detection and teaching can be carried out through the other one.

[0060] This avoids the related defects existing in the prior art, and the overall preparation cost of the equipment is low, which is easy to promote and apply.

[0061] In some embodiments, in order to facilitate the display of voltage and current during the charging process, refer to the attached Figure 1 and 2 , a single-phase dual-display meter 7 is also provided, and:

[0062] The L ends of the two national standard seven-hole charging vehicle interfaces 6 are respectively connected to the L ends of the single-phase dual-display meter 7, while the N ends of the two national standard seven-hole charging vehicle interfaces 6 are respectively connected to the N ends of the single-phase dual-display meter 7, so as to display the relevant content.

[0063] In some embodiments, in order to further intuitively display the charging process, an intermediate relay 8 and at least six sets of running light groups 9 and a running light controller 10 are also provided; Figure 2 Only four groups of flowing light groups 9 are shown to represent the connection relationship, and the actual number of flowing light groups 9 is set according to needs.

[0064] The L terminal and the N terminal of the intermediate relay 8 are respectively connected to the L terminal and the N terminal of the single-phase dual-display meter 7 for obtaining power.

[0065] The first common terminal of the intermediate relay 8 is connected to the positive access terminal of the running light controller 10; the normally open contact corresponding to the first common terminal in the intermediate relay 8 is connected to the positive output terminal in the power output terminal of the AC-DC power supply module 4, and the negative output terminal in the power output terminal of the AC-DC power supply module 4 is connected to the negative access terminal of the running light controller 10, and the running light group 9 includes two parallel LED lamp beads, and each running light group 9 is respectively connected to the running light controller 10.

[0066] That is, when the charging gun is inserted into any national standard seven-hole charging vehicle interface 6, the intermediate relay 8 is energized, and its first common terminal is connected to the corresponding first normally open contact, so that the running light controller 10 is energized, and the corresponding multiple running light groups 9 can be controlled to perform light display; that is, the normal charging process is displayed through the flow of light. When the charging gun is not charging normally, the running light groups 9 cannot be lit in sequence, indicating that the charging is abnormal or not charged.

[0067] In some embodiments, in order to show that the L end and the N end of the national standard seven-hole charging vehicle interface 6 are respectively successfully connected and current continues to flow through, all the flow light groups 9 are arranged in rows between the digital display potentiometer 5 and the national standard seven-hole charging vehicle interface 6, and all the LED lamp beads are arranged in two rows, and the lighting direction is from the national standard seven-hole charging vehicle interface 6 to the digital display potentiometer 5, so that when charging is normal, all the LED lamp beads are lit in turn in the aforementioned direction to simulate the charging status.

[0068] In some embodiments, in order to further demonstrate the normal charging process, there is still a voice broadcast module 11.

[0069] Among them, the power input end of the voice broadcast module 11 is connected to the power output end of the AC-DC power supply module 4, and the second common end of the intermediate relay 8 is connected to the positive output end in the power output end of the AC-DC power supply module 4, and the normally open contact corresponding to the second common end in the intermediate relay 8 is connected to the trigger end of the voice broadcast module 11.

[0070] That is, when the charging gun is inserted into any national standard seven-hole charging vehicle interface 6, the intermediate relay 8 is energized, and its second common end is connected to the corresponding normally open contact, so that the trigger end of the voice broadcast module 11 is energized, so that the voice broadcast module 11 emits voice content such as "connection normal, charging in progress".

[0071] In some embodiments, in order to facilitate the display of related equipment, a first display board 12 in a vertical state is installed on the front end surface of the stand body 1, and the air switch 2 and the wall-mounted charging box 3 are installed on the upper part of the front end surface of the first display board 12, and the digital potentiometer 5, two national standard seven-hole charging vehicle interfaces 6, and the single-phase dual-display meter 7 are installed on the lower part of the front end surface of the first display board 12, and a reserved exhibition area is provided in the middle of the first display board 12 for displaying text, pictures and other related content.

[0072] In some embodiments, in order to display relevant schematic diagrams, a second display panel 13 is further provided on the front end surface of the stand body 1 .

[0073] The second display board 13 is arranged below the first display board 12, and its bottom end is tilted forward, and a charging mode 3 connection mode B control circuit guide schematic diagram (such as Figure 3 ) to display related content.

[0074] In summary, the new energy slow charging line diagnostic test bench provided by the present application has the following beneficial effects compared with the prior art:

[0075] 1. It can effectively detect relevant content and avoid the defects of existing technologies;

[0076] 2. The equipment preparation cost is low and easy to promote and apply;

[0077] 3. With the help of the digital potentiometer 5, the relevant parameters can be effectively adjusted, which can affect the charging results and realize the demonstration and teaching of relevant content.

[0078] 4. With the help of the running light group 9, the voice broadcast module 11, etc., a visual display of normal charging can be achieved.

[0079] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new energy slow charging line diagnostic test bench, including a bench body, characterized in that: The stand body is sequentially equipped with an air switch, a wall-mounted charging box, an AC-DC power module, a digital display potentiometer and two national standard seven-hole charging vehicle interfaces; The output end of the air switch is connected to an external power supply; The input end of the wall-mounted charging box and the input end of the AC-DC power module are respectively connected to the output end of the air switch; and the front control panel of the wall-mounted charging box is separated from the rear housing and both are installed on the stand body; The power input terminal of the digital display potentiometer is connected to the power output terminal of the AC-DC power module; The PE terminals of the two national standard seven-hole charging vehicle interfaces are respectively connected to the RA terminals of the digital display potentiometer; The CP ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the RB ends of the digital display potentiometer.

2. A new energy slow charging line diagnostic test bench according to claim 1, characterized in that: It also includes single-phase dual display meter; The L ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the L ends of the single-phase dual-display meter; The N ends of the two national standard seven-hole charging vehicle interfaces are respectively connected to the N ends of the single-phase dual-display meter.

3. A new energy slow charging line diagnostic test bench according to claim 2, characterized in that: It also includes an intermediate relay, no less than 6 sets of running light groups and a running light controller; The L terminal and N terminal of the intermediate relay are respectively connected to the L terminal and N terminal of the single-phase dual-display meter; The first common terminal of the intermediate relay is connected to the positive electrode access terminal of the running light controller; The normally open contact corresponding to the first common terminal in the intermediate relay is connected to the positive output terminal in the power output terminal of the AC-DC power module; The negative electrode output terminal in the power output terminal of the AC-DC power supply module is connected to the negative electrode access terminal of the running light controller; The water flow lamp group includes two LED lamp beads connected in parallel; Each of the running light groups is respectively connected to a running light controller; All the running lights are arranged in a row and arranged between the digital display potentiometer and one of the national standard seven-hole charging vehicle interfaces.

4. A new energy slow charging line diagnostic test bench according to claim 3, characterized in that: It also includes a voice broadcast module; The power input terminal of the voice broadcast module is connected to the power output terminal of the AC-DC power module; The second common terminal of the intermediate relay is connected to the positive output terminal in the power output terminal of the AC-DC power module; The normally open contact corresponding to the second common terminal in the intermediate relay is connected to the trigger terminal of the voice broadcast module.

5. A new energy slow charging line diagnostic test bench according to claim 3, characterized in that: All the LED lamp beads are arranged in two rows.

6. A new energy slow charging line diagnostic test bench according to claim 4 or 5, characterized in that: A first display panel is provided on the front end surface of the stand body; The first display board is in a vertical shape; The air switch and the wall-mounted charging box are both installed on the upper part of the front end surface of the first display panel; The digital display potentiometer, two national standard seven-hole charging vehicle interfaces, and single-phase dual display meters are installed at the lower part of the front end surface of the first display board; A reserved exhibition area is arranged in the middle of the front end surface of the first exhibition board.

7. A new energy slow charging line diagnostic test bench according to claim 6, characterized in that: A second display panel is also provided on the front end surface of the stand body; The second display board is arranged below the first display board, and its bottom end is inclined forward; The second display board is drawn with a charging mode 3 connection method B control circuit guidance principle diagram.

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