Damping structure of electric vehicle charging control box

Abstract

A damping structure of an electric vehicle charging control box relates to the technical field of electric vehicle charging. Comprising an upper shell, a lower shell, a circuit board, a conductive busbar and an injection molding part, the upper shell and the lower shell are mutually covered and combined to form a cavity for accommodating the circuit board, the conductive busbar and the injection molding part; the injection molding part is injection-molded on at least part of the conductive busbar to form an insulating layer; the conductive busbar is electrically connected with the circuit board; the circuit board is provided with a through hole; the injection molding part is provided with a protruding supporting part, and the supporting part penetrates through the through hole to abut against the upper shell. And a first shock pad in contact with the inner surface of the lower shell is arranged at the bottom of the injection molding part. According to the charging control box, the injection molding part used for insulation on the conductive busbar serves as a support in the charging control box, the supporting part at the upper end penetrates through the through hole in the circuit board to support the upper shell, and the lower end supports the lower shell by arranging the first shock pad, so that the whole conductive busbar and the circuit board obtain a good shock absorption effect.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging, in particular to a shock absorbing structure of an electric vehicle 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 cable of the charging gun will be connected to a charging control box to control the operation of the charging gun. In actual work, the charging gun is used frequently, and the charging box will also be in vibration or shaking for a long time, and often have to withstand relatively serious bumps. The charging control box contains circuit boards and various electronic devices, which are very easy to be damaged in various vibrations. Therefore, in the existing technology, a new solution is urgently needed to solve the above problems. Utility Model Content

[0003] The utility model provides a shock absorbing structure of an electric vehicle charging control box, comprising an upper shell, a lower shell, a circuit board, a conductive busbar and an injection molded part;

[0004] The upper shell and the lower shell cover each other and form a cavity for accommodating the circuit board, the conductive busbar and the injection molded part;

[0005] The injection molded part is injection molded on at least a portion of the conductive busbar to form an insulating layer;

[0006] The conductive busbar is electrically connected to the circuit board;

[0007] The circuit board has a through hole;

[0008] The injection molded part has a protruding support portion, and the support portion passes through the through hole and abuts against the upper shell;

[0009] A first shock-absorbing pad in contact with the inner surface of the lower shell is disposed at the bottom of the injection molded part.

[0010] It also includes a relay connected to the conductive busbar, and the relay is fixed on the upper shell, the lower shell and / or the circuit board through the injection molded part.

[0011] The injection molded part has an elastic contact portion for alleviating vibration of the relay, and the elastic contact portion at least abuts against a free end of the relay.

[0012] A second shock-absorbing pad in contact with the lower housing is disposed at the bottom of the relay.

[0013] There are multiple first shock-absorbing pads, which are evenly distributed on the injection molded part.

[0014] A third shock-absorbing pad is arranged between the support portion and the upper shell.

[0015] The lower surface of the first shock-absorbing pad has a suction cup structure suitable for adsorbing on the inner surface of the lower shell.

[0016] A clamping portion is injection-molded on the bottom of the injection-molded part, and the first shock-absorbing pad is clamped on the clamping portion.

[0017] The upper shell has a boss abutting against the circuit board, and a fourth shock-absorbing pad is arranged between the circuit board and the boss.

[0018] A sealing gasket is arranged between the upper shell and the lower shell.

[0019] The utility model has the following beneficial effects: the present application uses the injection molded parts for insulation on the conductive busbar as the support inside the charging control box, the support part at the upper end passes through the through hole on the circuit board to support the upper shell, and the lower end supports the lower shell by setting a first shock-absorbing pad, so that the entire conductive busbar and the circuit board can obtain a good shock-absorbing effect. The second shock-absorbing pad further reduces the impact of the micro-vibration of the relay on the charging control box by providing elastic support. The third shock-absorbing pad between the support part and the upper shell can further reduce the impact of vibration on the circuit board and other electronic devices. The fourth shock-absorbing pad is an integral ring covering the boss, thereby achieving the purpose of shock absorbing the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 The utility model is a structural schematic diagram of a shock absorbing structure of an electric vehicle charging control box.

[0022] Figure 2 It is a schematic diagram of a third shock-absorbing pad of a shock-absorbing structure of an electric vehicle charging control box according to the utility model.

[0023] Figure 3 It is a schematic diagram of a fourth shock-absorbing pad of a shock-absorbing structure of an electric vehicle charging control box according to the utility model.

[0024] Figure 4 This is an assembly diagram of a conductive busbar and an injection molded part of a shock-absorbing structure of an electric vehicle charging control box according to the utility model.

[0025] The reference numerals in the figures indicate:

[0026] 1-upper shell, 11-boss, 2-lower shell, 3-circuit board, 31-through hole, 4-conductive busbar, 5-injection molded part, 51-support part, 52-elastic contact part, 53-clamping part, 61-first shock absorbing pad, 611-suction cup structure, 62-second shock absorbing pad, 63-third shock absorbing pad, 64-fourth shock absorbing pad, 7-relay, 8-sealing pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0028] The utility model provides a shock absorbing structure of an electric vehicle charging control box, such as Figure 1-Figure 4 As shown, it includes an upper shell 1, a lower shell 2, a circuit board 3, a conductive busbar 4 and an injection molded part 5;

[0029] The upper shell 1 and the lower shell 2 cover each other and form a cavity for accommodating the circuit board 3, the conductive busbar 4 and the injection molded part 5;

[0030] The injection molded part 5 is injection molded on at least a portion of the conductive busbar 4 to form an insulating layer;

[0031] The conductive busbar 4 is electrically connected to the circuit board 3;

[0032] The circuit board 3 has a through hole 31;

[0033] The injection molded part 5 has a protruding support portion 51 , and the support portion 51 passes through the through hole 31 and abuts against the upper shell 1 ;

[0034] A first shock-absorbing pad 61 in contact with the inner surface of the lower housing 2 is disposed at the bottom of the injection molded part 5 .

[0035] The conductive busbar 4 in the charging control box is used for electrical transmission and is connected to the circuit board 3. If the shock absorption effect of the charging control box is poor, it is easy to cause the circuit board 3 and the conductive busbar 4 to fall off. At the same time, there are many precision electronic devices on the circuit board 3, which are easily damaged in collisions. In this application, the injection molded part 5 used for insulation on the conductive busbar 4 is used as the support inside the charging control box. The upper support part 51 passes through the through hole 31 on the circuit board 3 to support the upper shell 1, and the lower end supports the lower shell 2 by setting a first shock absorbing pad 61, so that the entire conductive busbar 4 and the circuit board 3 can obtain a good shock absorption effect.

[0036] In some embodiments, a relay 7 connected to the conductive busbar 4 is further included, and the relay 7 is fixed to the upper housing 1, the lower housing 2 and / or the circuit board 3 through the injection molded part 5. The relay 7 can control the on and off of the conductive busbar 4 under the guidance of the control signal, and is fixed by the injection molded part 5, eliminating the need for a special fixing structure, which can greatly reduce the volume of the charging control box.

[0037] Furthermore, the injection molded part 5 has an elastic contact portion 52 for alleviating the vibration of the relay 7, and the elastic contact portion 52 at least abuts against the free end of the relay 2. The relay 7 itself is in a micro-vibration state for a long time, and the elastic contact portion 52 is arranged on the injection molded part 5 to contact the free end of the relay that is not fixed on the injection molded part 5, so as to absorb the vibration of the relay 7 and reduce the influence of the vibration of the relay 7 on the charging control box.

[0038] Furthermore, a second shock-absorbing pad 62 in contact with the lower housing 2 is provided at the bottom of the relay 7. The relay 7 contacts the inner surface of the lower housing 2 through the second shock-absorbing pad 62, and the second shock-absorbing pad 62 further reduces the influence of the micro-vibration of the relay 7 on the charging control box by providing elastic support.

[0039] In some embodiments, there are multiple first shock-absorbing pads 61, which are evenly distributed on the injection molded part 5. Multiple first shock-absorbing pads 61 work together to evenly support the injection molded part 5, so that the conductive busbar 4 is more evenly stressed, avoiding more shaking and pulling that causes loose connection with the circuit board 3.

[0040] In some embodiments, a third shock-absorbing pad 63 is provided between the support portion 51 and the upper housing 1. The third shock-absorbing pad 63 provided between the support portion 51 and the upper housing 1 can further provide a buffering effect, further reducing the impact of vibration on the circuit board 3 and other electronic devices.

[0041] In some embodiments, the lower surface of the first shock absorbing pad 61 has a suction cup structure 611 suitable for adsorbing on the inner surface of the lower shell 2. The suction cup structure 611 is concave, and when the upper shell 1 and the lower shell 2 are covered, the first shock absorbing pad 61 is adsorbed on the inner surface of the lower shell 2 through the suction cup structure, making the installation more convenient and firmer.

[0042] In some embodiments, a clamping portion 53 is molded at the bottom of the injection molded part 5, and the first shock absorbing pad 61 is clamped on the clamping portion 53. Specifically, the clamping portion 53 can be cross-shaped, and the first shock absorbing pad 61 is elastic and can be clamped in the clamping portion 53 by extrusion to achieve fixation.

[0043] In some embodiments, the upper housing 1 has a boss 11 in contact with the circuit board 3, and a fourth shock-absorbing pad 64 is disposed between the circuit board 3 and the boss 11. Figure 3 As shown, the boss 11 can carry the circuit board 3 , and a fourth shock-absorbing pad 64 is arranged on the boss 11 . The fourth shock-absorbing pad 64 is an integral ring-shaped pad covering the boss 11 , thereby achieving the purpose of shock absorbing for the circuit board 3 .

[0044] In some embodiments, a sealing gasket 8 is provided between the upper shell 1 and the lower shell 2. The sealing gasket 8 can not only increase the sealing of the charging control box to prevent water or dust from entering the charging control box, but also play a buffering role when the upper shell 1 or the lower shell 2 is impacted, absorbing part of the impact force to protect the components inside the charging control box.

[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A shock absorbing structure of an electric vehicle charging control box, characterized in that: It includes an upper shell, a lower shell, a circuit board, a conductive busbar and an injection molded part; The upper shell and the lower shell cover each other and form a cavity for accommodating the circuit board, the conductive busbar and the injection molded part; The injection molded part is injection molded on at least a portion of the conductive busbar to form an insulating layer; The conductive busbar is electrically connected to the circuit board; The circuit board has a through hole; The injection molded part has a protruding support portion, and the support portion passes through the through hole and abuts against the upper shell; A first shock-absorbing pad in contact with the inner surface of the lower shell is disposed at the bottom of the injection molded part.

2. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: It also includes a relay connected to the conductive busbar, and the relay is fixed on the upper shell, the lower shell and / or the circuit board through the injection molded part.

3. The shock absorbing structure of the electric vehicle charging control box according to claim 2, characterized in that: The injection molded part has an elastic contact portion for alleviating vibration of the relay, and the elastic contact portion at least abuts against a free end of the relay.

4. The shock absorbing structure of the electric vehicle charging control box according to claim 2, characterized in that: A second shock-absorbing pad in contact with the lower housing is disposed at the bottom of the relay.

5. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: There are multiple first shock-absorbing pads, which are evenly distributed on the injection molded part.

6. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: A third shock-absorbing pad is arranged between the support portion and the upper shell.

7. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: The lower surface of the first shock-absorbing pad has a suction cup structure suitable for adsorbing on the inner surface of the lower shell.

8. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: A clamping portion is injection-molded on the bottom of the injection-molded part, and the first shock-absorbing pad is clamped on the clamping portion.

9. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: The upper shell has a boss abutting against the circuit board, and a fourth shock-absorbing pad is arranged between the circuit board and the boss.

10. The shock absorbing structure of the electric vehicle charging control box according to claim 1, characterized in that: A sealing gasket is arranged between the upper shell and the lower shell.

Images