CN213694574U

CN213694574U - Circuit board fixing structure of photovoltaic controller

Info

Publication number: CN213694574U
Application number: CN202022857629.1U
Authority: CN
Inventors: 张军
Original assignee: Suzhou Jiamaide Electronic Technology Co ltd
Current assignee: Suzhou Jiamaide Electronic Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-07-13
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a circuit board fixing structure of a photovoltaic controller, relating to the technical field of circuit board fixing; the device comprises a circuit board, a shell, a limiting seat, a clamping rod, a button, a fixing device and a cable interface; a fixing device is fixedly connected inside the shell and comprises a supporting cylinder, two symmetrical elastic rods are fixedly connected inside the supporting cylinder in an inclined mode, and a limiting block is fixedly connected to the top of each elastic rod; the circuit board is fixedly connected with a through hole, the top of the through hole is fixedly connected with a gasket, a button is inserted into the gasket, the bottom of the button is fixedly connected with a supporting block, and the bottom of the supporting block is provided with an inverted V-shaped groove; the inner part and the bottom of the through hole are fixedly connected with a circular truncated cone protruding inwards, the supporting block is sleeved with a spring, the bottom of the spring is fixedly connected to the circular truncated cone, and the top of the spring is fixedly connected to the bottom of the button. This device can realize fixed to the high strength of circuit board, and convenient to detach.

Description

Circuit board fixing structure of photovoltaic controller

Technical Field

The utility model relates to a technical field is fixed to the circuit board, specifically is a photovoltaic controller's circuit board fixed knot constructs.

Background

With the aggravation of the loss of conventional energy, clean green energy becomes more and more the focus of attention of the energy industry, and solar photovoltaic power generation is a green energy widely used at present. The photovoltaic controller is used for controlling the solar panel to charge the storage battery and controlling the storage battery to supply power to the load of the solar inverter, and is necessary transfer equipment in photovoltaic power generation. The PCB circuit board is a core component of the photovoltaic controller.

Chinese utility model patent specification CN209435665U discloses a circuit board fixed knot of photovoltaic controller constructs, including controller shell, circuit board and spacing fixed station etc. fix the circuit board through the cooperation of spacing fixed station and breach. However, the fixing method has low firmness and is easy to loosen during transportation and use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic controller's circuit board fixed knot constructs to solve the problem that proposes among the above-mentioned background art. The circuit board fixing structure is firm in fixing and convenient to install.

In order to achieve the above object, the utility model provides a following technical scheme:

a circuit board fixing structure of a photovoltaic controller comprises a circuit board, a shell, a limiting seat, a clamping rod, a button, a fixing device and a cable interface; the shell is a square box body, and the circuit board is a square plate which is higher than the shell in a row transmission mode; a fixing device is fixedly connected inside the shell and comprises a supporting cylinder, two symmetrical elastic rods are fixedly connected inside the supporting cylinder in an inclined mode, and a limiting block protruding outwards is fixedly connected to the top of each elastic rod; a through hole is fixedly connected to the position, corresponding to the fixing device, of the circuit board, a gasket is fixedly connected to the top of the through hole, a button is inserted into the gasket in a penetrating manner, a supporting block is fixedly connected to the bottom of the button, and an inverted V-shaped groove is formed in the bottom of the supporting block; the inner part and the bottom of the through hole are fixedly connected with a circular truncated cone protruding inwards, the supporting block is sleeved with a spring, the bottom of the spring is fixedly connected to the circular truncated cone, and the top of the spring is fixedly connected to the bottom of the button.

As a further aspect of the present invention: one side of the circuit board is fixedly connected with a convex cable interface, and a cable groove with matched size is arranged on the side plate of the shell corresponding to the cable interface.

As a further aspect of the present invention: two corners of the opposite side of circuit board and cable interface are equipped with square groove, the rigid coupling of circuit board along square groove's border department has the screens pole, screens pole top rigid coupling has the screens ball.

As a further aspect of the present invention: the position of the inner part of the shell corresponding to the square groove is provided with a limiting seat fixedly connected to the bottom of the shell, the limiting seat is provided with a limiting groove, the limiting groove penetrates through the limiting seat from top to bottom, and the bottom of the limiting groove is as high as the bottom of the cable groove.

As a further aspect of the present invention: the limiting groove penetrates through one side of the central axis of the shell, and the top of the limiting groove is a spherical groove.

As a further aspect of the present invention: the fixing device is fixedly connected with the bottom of the shell on one side of the cable groove, and the fixing device is symmetrically distributed in the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

by adopting the circuit board fixing structure of the photovoltaic controller, the device firstly embeds the clamping rod at the top of the circuit board into the bottom of the limiting groove, rotates the circuit board, and enables the fixing device to be inserted into the through hole for fixing, at the moment, the cable interface is automatically embedded in the cable groove to form fixing, the specified mode is simple, the fixing device is clamped with the circuit board, and the fixing device is stably and firmly connected and cannot be loosened through matching with the clamping rod, so that the fixing device cannot be loosened and damaged in the transportation and use processes;

adopt above-mentioned photovoltaic controller's circuit board fixed knot to construct, when needing to overhaul or change, press the button on circuit board surface, the elastic rod pressurized rotates to the inboard, fixing device and through-hole autosegregation can directly take off the circuit board, take the convenience, the step is simple.

Drawings

Fig. 1 is a schematic structural diagram of a circuit board fixing structure of a photovoltaic controller.

Fig. 2 is a schematic structural diagram of a circuit board in a circuit board fixing structure of a photovoltaic controller.

Fig. 3 is a schematic structural view of the fixing device in the circuit board fixing structure of the photovoltaic controller matching with the circuit board.

In the figure: 1. a side plate; 2. a housing; 3. a fixing device; 4. a limiting seat; 5. a spherical groove; 6. a limiting groove; 7. a cable trough; 8. a circuit board; 9. a button; 10. a position clamping rod; 11. a blocking ball; 12. a cable interface; 13. a square groove; 14. a gasket; 15. a support block; 16. a spring; 17. a through hole; 18. a groove; 19. a circular truncated cone; 20. a limiting block; 21. an elastic rod; 22. a support cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in embodiment 1 of the present invention, a circuit board fixing structure of a photovoltaic controller includes a circuit board 8, a housing 2, a limiting seat 4, a locking rod 10, a button 9, a fixing device 3, and a cable interface 12; the shell 2 is a square box body, and the circuit board 8 is a square plate which is higher than the shell 2 in line transmission and matched with the square box body; a fixing device 3 is fixedly connected inside the shell 2, the fixing device 3 comprises a supporting cylinder 22, two symmetrical elastic rods 21 are fixedly connected inside the supporting cylinder 22 in an inclined mode, and the top of each elastic rod 21 is fixedly connected with a limiting block 20 protruding outwards; a through hole 17 is fixedly connected to the circuit board 8 at a position corresponding to the fixing device 3, a gasket 14 is fixedly connected to the top of the through hole 17, a button 9 is inserted into the gasket 14, a supporting block 15 is fixedly connected to the bottom of the button 9, and an inverted V-shaped groove 18 is formed in the bottom of the supporting block 15; the inner part and the bottom of the through hole 17 are fixedly connected with a circular truncated cone 19 protruding inwards, the supporting block 15 is sleeved with a spring 16, the bottom of the spring 16 is fixedly connected to the circular truncated cone 19, and the top of the spring 16 is fixedly connected with the bottom of the button 9.

The circuit board 8 is horizontally placed into the shell 2, the circuit board 8 can be reinforced through the double fixation of the limiting block 20 and the fixing device 3, and the connection part of the circuit board 8 and the fixing device cannot move when any shaking is determined.

One side of the circuit board 8 is fixedly connected with a convex cable interface 12, and a cable groove 7 with a matched size is arranged on the side plate 1 of the shell 2 corresponding to the cable interface 12. Two corners of the opposite side of circuit board 8 and cable interface 12 are equipped with square groove 13, circuit board 8 has screens pole 10 along the border department rigid coupling of square groove 13, screens ball 11 is fixed connection to screens pole 10 top. The inside position that corresponds square groove 13 of shell 2 is equipped with the spacing seat 4 of rigid coupling in shell 2 bottom, be equipped with spacing groove 6 on the spacing seat 4, spacing groove 6 runs through from the top down, spacing groove 6 bottom height is the same with the bottom height of cable groove 7. The limiting groove 6 penetrates through one side of the central axis of the shell 2, and the top of the limiting groove 6 is a spherical groove 5. The fixing device 3 is fixedly connected with the bottom of the shell 2 at one side of the cable groove 7, and the fixing device 3 is symmetrically distributed in the shell 2.

The position clamping rod 10 on the circuit board 8 is inserted into the limiting groove 6 until the position clamping ball 11 is completely embedded into the spherical groove 5 at the bottom of the limiting groove 6, at the moment, the circuit board 8 can rotate around the position clamping rod 10, the circuit board 8 is rotated to enable the circuit board 8 to be horizontal, the fixing device 3 corresponds to the position of the button 9, the top end of an elastic rod 21 in the fixing device 3 is embedded into a through hole 17 in classics, and due to the elasticity of the elastic rod 21, the elastic rod 21 automatically rotates towards the middle in the embedding process, and embedding is completed. The embedding back elastic rod 21 gets back to original tilt state, and the forever at elastic rod 21 top expands to both ends soon, stopper 20 bottom joint in the round platform 19 top of through-hole 17 bottom, and circuit board 8 dies with the card of shell 2 this moment, can not take off the restriction earlier at the exogenic action, more can not take place to become flexible.

Example 2

Referring to fig. 1 to 3, the main differences between the embodiment 2 and the embodiment 1 are:

the bottom of the button 9 on the circuit board 8 is fixedly connected with a supporting block 15, the bottom surface of the supporting block 15 is matched with the upper surface of the embedded limiting block 20, when the circuit board 8 is required to be overhauled or replaced, the button 9 is pressed down, the inverted V-shaped groove 18 at the bottom of the limiting block 20 moves downwards, the limiting block 20 is forced to concentrate towards the middle part, the elastic rod 21 rotates towards the central position, the limiting block 20 is not limited to the round platform 19 at the bottom after being tightened up, the circuit board 8 can be rotated to be taken out, the button 9 is loosened at the moment, and the acting force of the spring 16 enables the button. The clothes are simple and convenient in operation process, convenient to replace and maintain and excellent in fixing firmness.

The utility model discloses a theory of operation is:

this device passes through the elastic action of elastic rod 21, when embedding fixing device 3 in through-hole 17, the rotatory shrink of elastic rod 21 that receives 19 pressures of round platform, make two short distances of stopper 20 reduce, in stopper 20 normally gets into through-hole 17, round platform 19 no longer limits stopper 20 after getting into, elastic rod 21 stretches again, blocks the round platform 19 of bottom, retrain circuit board 8, simultaneously because the outside supports a section of thick bamboo 22 and makes the support to circuit board 8, circuit board 8 can't continue the downward rotation. The constraint of the fixing device 3 and the rotation constraint of the detent lever 10 together form a fixing structure of the circuit board 8, and the double fixing and mutual limitation do not realize effective fixing of the circuit board 8. And the fixing structure is kept firm without manual operation, cannot be loosened easily, is convenient to take down during manual operation, and provides convenience for maintenance and replacement.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A circuit board fixing structure of a photovoltaic controller is characterized by comprising a circuit board (8), a shell (2), a limiting seat (4), a clamping rod (10), a button (9), a fixing device (3) and a cable interface (12); the shell (2) is a square box body, and the circuit board (8) is a square plate which is higher than the shell (2) in line transmission and matched with the square plate; a fixing device (3) is fixedly connected inside the shell (2), the fixing device (3) comprises a supporting cylinder (22), two symmetrical elastic rods (21) are fixedly connected inside the supporting cylinder (22) in an inclined mode, and the top of each elastic rod (21) is fixedly connected with a limiting block (20) protruding outwards; a through hole (17) is fixedly connected to the position, corresponding to the fixing device (3), of the circuit board (8), a gasket (14) is fixedly connected to the top of the through hole (17), a button (9) is inserted into the gasket (14), a supporting block (15) is fixedly connected to the bottom of the button (9), and an inverted V-shaped groove (18) is formed in the bottom of the supporting block (15); the inner part and the bottom of the through hole (17) are fixedly connected with a circular truncated cone (19) protruding inwards, the supporting block (15) is sleeved with a spring (16), the bottom of the spring (16) is fixedly connected to the circular truncated cone (19), and the top of the spring (16) is fixedly connected to the bottom of the button (9).

2. The circuit board fixing structure of the photovoltaic controller according to claim 1, wherein a protruding cable interface (12) is fixedly connected to one side of the circuit board (8), and a cable groove (7) with a matched size is formed in a position, corresponding to the cable interface (12), on the side plate (1) of the housing (2).

3. The circuit board fixing structure of the photovoltaic controller as recited in claim 1 or 2, wherein two corners of the other side of the circuit board (8) opposite to the cable interface (12) are provided with a square groove (13), the circuit board (8) is fixedly connected with a clamping rod (10) along the edge of the square groove (13), and the top of the clamping rod (10) is fixedly connected with a clamping ball (11).

4. The circuit board fixing structure of the photovoltaic controller according to claim 1, wherein a limiting seat (4) fixedly connected to the bottom of the housing (2) is disposed in the housing (2) at a position corresponding to the square groove (13), a limiting groove (6) is disposed on the limiting seat (4), the limiting groove (6) penetrates through the limiting seat from top to bottom, and the bottom height of the limiting groove (6) is the same as the bottom height of the cable groove (7).

5. The circuit board fixing structure of the photovoltaic controller as recited in claim 4, wherein the limiting groove (6) penetrates through one side of the central axis of the housing (2), and the top of the limiting groove (6) is a spherical groove (5).

6. The circuit board fixing structure of the photovoltaic controller according to claim 1, wherein the fixing device (3) is fixedly connected to the bottom of the housing (2) at one side of the cable trough (7), and the fixing devices (3) are symmetrically distributed in the housing (2).