Control box

Abstract

The utility model discloses a control box, which comprises a shell and a circuit board assembly, the circuit board assembly is arranged in the shell, the shell comprises an upper shell and a lower shell which are connected with each other, the circuit board assembly comprises a circuit board, a plurality of electronic components, a plurality of conductors and a light assembly, and the light assembly is electrically connected with the circuit board and located on one side of the upper shell. The electronic component and the conductors are located on one side of the lower shell, each conductor comprises at least two conducting bars and an insulator integrally formed outside the conducting bars in an injection molding mode, and the conducting bars enable the input end or the output end of the electronic component to be electrically connected with the circuit board. A first clamping structure is arranged between one surface, deviating from the electronic component, of the insulator and the inner wall of the lower shell for mutual clamping connection, so that the circuit board is fixed on the lower shell, the circuit board in the control box is indirectly fixed in the shell through the clamping structure between the insulator and the lower shell, the circuit board is prevented from shaking in the shell, and the service life of the circuit board is prolonged. The structure is simple, assembling is convenient, and electricity utilization safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and more specifically, to a 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 circuit board in the control box of the existing charging gun has no firm clip-on fixing method in the control box, and the light component has no reliable fixing method on the shell. During the use of the control box, the circuit board shakes and deviates from the predetermined position, which not only causes the electrical connection between the circuit board and the electronic components to be unstable and separate, resulting in electricity risk, but also easily causes the circuit board and the shell of the control box to collide and cause damage, affecting the normal use of the circuit board, and also causes the light component to lose electrical connection with the circuit board during shaking, and cannot normally indicate the working status of the control box, resulting in electricity risk.

[0003] Therefore, a new solution is urgently needed in the prior art to solve the above problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution of a control box to solve the problem that a circuit board is easy to shake in a shell of the control box and a lighting assembly and the shell have no fixing method.

[0005] According to the utility model, a control box is provided, comprising a shell and a circuit board assembly, wherein the circuit board assembly is arranged in the shell, wherein the shell comprises an upper shell and a lower shell connected to each other, wherein the circuit board assembly comprises a circuit board, a plurality of electronic components and a plurality of conductors, wherein the electronic components and the conductors are arranged on one side of the lower surface of the circuit board and are located in the lower shell, wherein the circuit board assembly further comprises a light assembly, wherein the light assembly is electrically connected to the circuit board, wherein the light assembly is arranged on one side of the upper surface of the circuit board and at least partially exposed outside the upper shell and is used to indicate the working state of the control box, wherein the conductor comprises at least two conductive bars and an insulator integrally injection-molded outside the conductive bars, wherein the conductive bars have at least two ends and extend outside the insulator, wherein one end of the conductive bars is electrically connected to an input end or an output end of the electronic component, and the other end is electrically connected to the circuit board,

[0006] A first clamping structure is provided between a side of the insulator facing away from the electronic component and the inner wall of the lower shell, and the first clamping structure is clamped and connected to each other so as to fix the circuit board on the lower shell.

[0007] Optionally, the first clamping structure is a first clamping groove or a first clamping buckle provided on the inner wall of the lower shell, and a second clamping groove provided on the insulator and clamped with the first clamping buckle or a second clamping buckle clamped with the first clamping groove.

[0008] Optionally, at least some of the adjacent conductors are connected to each other by means of a second clamping structure provided on the insulator.

[0009] Optionally, an annular groove is provided on the edge of the lower shell, and an inserting portion is provided on the periphery of the upper shell, and the inserting portion is inserted into the groove to snap-fit ​​the upper shell and the lower shell.

[0010] Optionally, the upper shell and the lower shell are connected by ultrasonic welding after being snap-fitted.

[0011] Optionally, the lighting assembly includes a plurality of LED lamps arranged on the upper surface of the circuit board and a plurality of light guide columns arranged between the upper shell and the plurality of LED lamps and corresponding to the plurality of LED lamps one by one. The plurality of LED lamps are electrically connected to the circuit board, one end of the light guide column abuts against the LED lamp, and the other end is exposed outside the upper shell, and the light guide column is used to conduct the light source of the LED lamp to the outside of the upper shell.

[0012] Optionally, the middle parts of the plurality of light guide columns are connected via a conductive matrix to form an integral light guide structure.

[0013] Optionally, the upper shell is provided with a protective portion protruding inwardly and conforming to the shape of the light guide structure, and at least a portion of the light guide structure is inserted into the protective portion and is integrally injection-molded with the upper shell.

[0014] Optionally, the upper shell is provided with an inwardly protruding accommodation portion, and the accommodation portion is configured to conform to the outer edge of the circuit board. After the upper shell and the lower shell are snap-fitted together, the circuit board is embedded in the accommodation portion to prevent the circuit board from moving in the upper shell.

[0015] Optionally, the protective portion is arranged in the accommodating portion, and a set distance is set between the end face of its free end and the circuit board, and the upper shell is provided with windows corresponding to the multiple light guide columns one by one within the projection range of the protective portion, and the other end of the light guide column is exposed in the window.

[0016] The beneficial effects of the utility model are:

[0017] 1. The control box of the utility model includes a shell and a circuit board assembly. The circuit board assembly is arranged in the shell. The shell includes an upper shell and a lower shell. The circuit board assembly includes a circuit board, multiple electronic components and multiple conductors and a lighting assembly. The multiple electronic components and multiple conductors are arranged on one side of the lower surface of the circuit board and are located in the lower shell. The lighting assembly is electrically connected to the circuit board and is arranged on one side of the upper surface of the circuit board. It is at least partially exposed outside the upper shell to indicate the working state of the control box. The conductor includes at least two conductive bars and an insulator integrally injection-molded outside the conductive bar. The conductive bar electrically connects the input end or output end of the electronic component to the circuit board. A clamping structure is provided between the insulator and the lower shell. The insulator and the lower shell are clamped and fixed by the clamping structure, thereby fixing the circuit board on the lower shell, preventing the circuit board from shaking in the shell, ensuring the electrical connection stability of the circuit board, the electronic components and the lighting assembly, and extending the overall service life of the entire control box.

[0018] 2. The light-guiding structure is at least partially within the protective portion of the upper shell and is limited and protected by the protective portion. It not only focuses light but also conducts the light source of the LED lamp better. The light-guiding structure is integrally injection-molded with the upper shell. The overall structure is relatively stable and will not separate from the upper shell. It is easy to align the LED lamp during assembly and is easy to assemble.

[0019] 3. The upper shell is provided with a receiving cavity, and the circuit board is embedded in the receiving cavity, which can also prevent the circuit board from shaking in the shell, protect the circuit board's own structure, and ensure the normal use of the circuit board assembly in the control box.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the exploded structure of a control box of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the assembly of the lower shell and the circuit board assembly of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the utility model in which the lower shell and the insulator are clamped together by a first clamping structure, and adjacent conductors are clamped together by a second clamping structure arranged on the insulator;

[0025] Figure 4 This is a schematic diagram of the structure of a control box of the utility model from another angle;

[0026] Figure 5 It is a structural schematic diagram of the upper shell of the utility model;

[0027] Figure 6 It is a schematic diagram of the structure of the receiving portion of the upper shell in which the circuit board of the utility model is embedded;

[0028] Figure 7 It is a partial cross-sectional structural schematic diagram of a control box of the utility model.

[0029] The following are marked in the figure:

[0030] 1. Upper shell; 11. Plug-in part; 12. Protective part; 13. Window; 14. Accommodating part; 2. Lower shell; 21. Annular groove; 3. Circuit board; 4. Conductor; 41. Conductive row; 42. Insulator; 6. Light assembly; 5. Electronic components; 61. Light guide structure; 611. Light guide column; 612. Conductive substrate; 62. LED lamp; 7. First clamping structure; 8. Second clamping structure. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] According to the first aspect of the present utility model, Figure 1-Figure 4As shown, a control box is provided, including a shell and a circuit board assembly, wherein the circuit board assembly is arranged in the shell, and the shell includes an upper shell 1 and a lower shell 2 connected to each other, the circuit board assembly includes a circuit board 3, a plurality of electronic components 5 and a plurality of conductors 4, the electronic components 5 and the conductors 4 are both arranged on one side of the lower surface of the circuit board 3 and located in the lower shell 2, the circuit board assembly also includes a lighting assembly 6, the lighting assembly 6 is electrically connected to the circuit board 3, the lighting assembly 6 is arranged on one side of the upper surface of the circuit board 3 and at least partially exposed outside the upper shell 1, and is used to indicate the working state of the control box, the conductor 4 includes at least two conductive bars 41 and an insulator 42 integrally injection-molded outside the conductive bars 41, the conductive bars 41 have at least two ends and extend outside the insulator 42, one end of the conductive bar 41 is electrically connected to the input end or the output end of the electronic component 5, and the other end is electrically connected to the circuit board 3,

[0036] A first clamping structure 7 is disposed between a surface of the insulator 42 facing away from the electronic component 5 and the inner wall of the lower shell 2 , so as to be clamped and connected with each other, so as to fix the circuit board 3 on the lower shell 2 .

[0037] With the rapid development and popularization of new energy vehicles, the research and development of charging guns for electric vehicles is particularly important. The circuit board 3 in the control box of the existing charging gun has no firm clip-on fixing method in the control box, and the light component 6 has no reliable fixing method on the shell. During the use of the control box, the circuit board 3 shakes and deviates from the predetermined position, which not only causes the circuit board 3 and the electronic components to be electrically unstable and separated, resulting in a risk of electricity use, but also easily causes the circuit board 3 and the shell of the control box to collide and cause damage, affecting the normal use of the circuit board 3, and also causes the light component 6 to be disconnected from the circuit board 3 during shaking, and cannot normally indicate the working status of the control box, resulting in a risk of electricity use.

[0038] In this design, the electronic components 5 and the circuit board 3 are electrically connected through the conductive bar 41 on the conductor 4. A clamping structure is provided between the insulator 42 molded outside the conductive bar 41 and the lower shell 2. The insulator 42 and the lower shell 2 are clamped and fixed by the clamping structure, thereby fixing the circuit board 3 on the lower shell 2, preventing the circuit board 3 from shaking in the shell, ensuring the stability of the electrical connection between the circuit board 3 and the electronic components and the stability of the electrical connection between the lighting assembly 6 and the circuit board 3, and extending the overall service life of the entire control box.

[0039] In some embodiments, Figure 2-Figure 3 As shown, the first clamping structure 7 is a first clamping groove or a first clamping buckle provided on the inner wall of the lower shell 2 and a second clamping groove or a second clamping buckle provided on the insulator 42 and clamped with the first clamping buckle.

[0040] The insulator 42 injection-molded outside the conductive bar 41 is connected to the lower shell 2 through the first slot and the first buckle, so that the insulator 42 is fixedly connected in the lower shell 2. Since the circuit board 3 is electrically connected to the conductive bar 41, the circuit board 3 is fixed in the lower shell 2, preventing the circuit board 3 from shaking during use, resulting in an unstable connection between the circuit board 3 and the electronic components 5, and damage to the circuit board 3 caused by shaking and hitting the shell, thereby extending the service life of the entire control box.

[0041] In some embodiments, Figure 3-Figure 4 As shown, at least some of the adjacent conductors 4 are connected to each other by means of a second clamping structure 8 disposed on the insulator 42 .

[0042] This structure connects the multiple conductors 4 into a whole, so that the connection between the multiple conductors 4 and the circuit board 3 is more stable, thereby enhancing the stability of the circuit board 3 in the housing.

[0043] In some embodiments, Figure 1 , Figure 5 , Figure 7 As shown, an annular groove 21 is provided on the edge of the lower shell 2, and an inserting portion 11 is provided on the periphery of the upper shell 1. The inserting portion 11 is inserted into the groove to buckle the upper shell 1 and the lower shell 2 together.

[0044] The matching design of the plug-in portion 11 and the annular groove 21 can guide the quick buckling of the upper shell 1 and the lower shell 2, and can also make the upper shell 1 and the lower shell 2 buckle more tightly.

[0045] In some embodiments, the upper shell 1 and the lower shell 2 are connected by ultrasonic welding after being snap-fitted.

[0046] Ultrasonic welding can quickly fuse the upper shell 1 and the lower shell 2, improve production efficiency, and has high welding strength. The welding process can produce high-strength welding points, which are close to the strength of the raw materials after welding and have good conductivity.

[0047] In some embodiments, Figure 7 As shown, the lighting assembly 6 includes a plurality of LED lamps 62 arranged on the upper surface of the circuit board 3 and a plurality of light guide columns 611 arranged between the upper shell 1 and the plurality of LED lamps 62 and corresponding to the plurality of LED lamps 62 one by one. The plurality of LED lamps 62 are electrically connected to the circuit board 3, one end of the light guide column 611 abuts against the LED lamp 62, and the other end is exposed outside the upper shell 1, and the light guide column 611 is used to conduct the light source of the LED lamp 62 to the outside of the upper shell 1.

[0048] Multiple LED lights 62 are used to indicate the working status of the control box, such as charging, power off, connection and fault status, etc., so that the operator can understand the working status of the control box by identifying the color of the light source transmitted by the light guide column 611 outside the upper shell 1 and its flashing frequency and other characteristics.

[0049] In some embodiments, Figure 7 As shown, the middle parts of the plurality of light guide pillars 611 are connected through a conductive matrix 612 to form an integral light guide structure 61 .

[0050] The integrated light guide structure 61 is easy to process and can be produced quickly. It is also convenient for the multiple light guide columns 611 to correspond to the multiple LED light sources during the assembly process, so the assembly is convenient and efficient.

[0051] In some embodiments, Figure 7 As shown, the upper shell 1 is provided with a protection portion 12 protruding inwardly and conforming to the light guide structure 61 , and at least a portion of the light guide structure 61 is inserted into the protection portion 12 and is integrally injection-molded with the upper shell 1 .

[0052] The light-guiding structure 61 is at least partially within the protective portion of the upper shell 1 and is limited and protected by the protective portion. It not only focuses light but also can better conduct the light source of the LED lamp 62. The light-guiding structure 61 is integrally injection-molded with the upper shell 1. The overall structure is fixed relative to the shell and will not separate from the upper shell 1. It is easy to align the LED lamp 62 during assembly, and assembly is convenient.

[0053] 4. In some embodiments, Figure 5-Figure 6 As shown, the upper shell 1 is provided with an inwardly protruding accommodating portion 14, and the accommodating portion 14 is configured to conform to the outer edge of the circuit board 3. After the upper shell 1 and the lower shell 2 are snap-fitted together, the circuit board 3 is embedded in the accommodating portion 14 to prevent the circuit board 3 from moving inside the upper shell 1.

[0054] The upper shell 1 is provided with a receiving portion 14, and the circuit board 3 is embedded in the receiving portion 14, which can also prevent the circuit board 3 from colliding with the shell due to shaking and causing damage, and can also ensure stable electrical connection between the circuit board 3 and the electronic components 5 and between the circuit board 3 and the lighting assembly 6, thereby ensuring the normal use of the control box.

[0055] In some embodiments, Figure 5 , Figure 7 As shown, the protection portion 12 is arranged in the accommodating portion 14, and a set distance is set between the end face of its free end and the circuit board 3, and the upper shell 1 is provided with windows 13 corresponding to the multiple light guide columns 611 within the projection range of the protection portion 12, and the other end of the light guide column 611 is exposed in the window 13.

[0056] The design of the window 13 facilitates the operator to understand the working status of the control box by identifying the color of the light source transmitted by the light guide column 611 outside the upper shell 1 and the flickering frequency and other characteristics.

[0057] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A control box, characterized in that: It includes a shell and a circuit board assembly, the circuit board assembly is arranged in the shell, the shell includes an upper shell and a lower shell connected to each other, the circuit board assembly includes a circuit board, a plurality of electronic components and a plurality of conductors, the electronic components and the conductors are arranged on one side of the lower surface of the circuit board and located in the lower shell, the circuit board assembly also includes a light assembly, the light assembly is electrically connected to the circuit board, the light assembly is arranged on one side of the upper surface of the circuit board and at least partially exposed outside the upper shell, and is used to indicate the working state of the control box, the conductor includes at least two conductive bars and an insulator integrally injection-molded outside the conductive bars, the conductive bars have at least two ends and extend out of the insulator, one end of the conductive bar is electrically connected to the input end or the output end of the electronic component, and the other end is electrically connected to the circuit board, A first clamping structure is provided between a side of the insulator facing away from the electronic component and the inner wall of the lower shell, and the first clamping structure is clamped and connected to each other so as to fix the circuit board on the lower shell.

2. A control box according to claim 1, characterized in that: The first clamping structure is a first clamping groove or a first clamping buckle provided on the inner wall of the lower shell, and a second clamping groove or a second clamping buckle provided on the insulator and clamped with the first clamping buckle.

3. A control box according to claim 1, characterized in that: At least some of the adjacent conductors are connected to each other by means of a second clamping structure arranged on the insulator.

4. A control box according to claim 1, characterized in that: An annular groove is formed on the edge of the lower shell, and an inserting portion is formed on the periphery of the upper shell. The inserting portion is inserted into the groove to buckle and connect the upper shell and the lower shell.

5. A control box according to claim 4, characterized in that: The upper shell and the lower shell are connected by ultrasonic welding after being snap-fitted.

6. A control box according to claim 5, characterized in that: The lighting assembly includes a plurality of LED lamps arranged on the upper surface of the circuit board and a plurality of light guide columns arranged between the upper shell and the plurality of LED lamps and corresponding to the plurality of LED lamps one by one. The plurality of LED lamps are electrically connected to the circuit board, one end of the light guide column abuts against the LED lamp, and the other end is exposed outside the upper shell, and the light guide column is used to conduct the light source of the LED lamp to the outside of the upper shell.

7. A control box according to claim 6, characterized in that: The middle parts of the plurality of light guide columns are connected through a conductive matrix to form an integral light guide structure.

8. A control box according to claim 7, characterized in that: The upper shell is provided with a protection portion protruding inwardly and conforming to the shape of the light guide structure. At least a part of the light guide structure is inserted in the protection portion and is integrally injection-molded with the upper shell.

9. A control box according to claim 8, characterized in that: The upper shell is provided with an inwardly protruding accommodation portion, and the accommodation portion is configured to conform to the outer edge of the circuit board. After the upper shell is snap-fitted with the lower shell, the circuit board is embedded in the accommodation portion to prevent the circuit board from moving in the upper shell.

10. A control box according to claim 9, characterized in that: The protection part is arranged in the accommodating part, and a set distance is set between the end face of its free end and the circuit board. The upper shell is provided with windows corresponding to multiple light guide columns one by one within the projection range of the protection part, and the other end of the light guide column is exposed in the window.

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