Fastening anti-loosening circuit board

Abstract

The utility model discloses a fastening and anti-loosening circuit board, and relates to the field of circuit board installation. Comprising a circuit board body, circuit board components are arranged on the upper surface of the circuit board body, mounting through holes are formed in the four corners of the circuit board body, positioning mechanisms are arranged at the mounting through holes, each positioning mechanism comprises a positioning screw, a limiting gasket, a glue bag, a threaded hole and a positioning supporting column, and the positioning supporting columns are arranged below the circuit board body. Threaded holes are formed in the positioning supporting columns, glue bags are arranged at the bottoms of the threaded holes, positioning screws are arranged in the threaded holes, and heating mechanisms are arranged on the positioning supporting columns. The circuit board body can be fixed on the positioning support column through the positioning screw, the glue bag is crushed after the circuit board body is fixed on the positioning support column, so that the positioning screw is fixed by glue, the waterproof positioning screw is loosened, the positioning support column can be heated by switching on a power supply of an electric heating wire, and the glue in the threaded hole is melted. A user can loosen the positioning screw and take down the circuit board body for maintenance.

Description

Technical Field

[0001] The utility model relates to the field of circuit board installation, in particular to a circuit board that is fastened and prevented from loosening. Background Art

[0002] The ECU is one of the core electronic components of a car, also known as the Electronic Control Unit (ECU). It is equivalent to the brain and central nervous system of the car, responsible for receiving and analyzing signals from various sensors, calculating various parameters according to pre-designed programs, and then sending corresponding instructions to various related actuators to perform various predetermined control functions. The circuit board of the ECU is generally fixed in the housing of the ECU by screws. The screws are prone to loosening due to vibration during long-term driving of the vehicle. Therefore, a circuit board that is tightened to prevent loosening is proposed. Utility Model Content

[0003] The main purpose of the utility model is to provide a circuit board that is fastened and prevented from loosening, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A circuit board for tightening and preventing loosening, comprising a circuit board body, wherein the upper surface of the circuit board body is provided with circuit board components, the four corners of the circuit board body are provided with mounting through holes, the mounting through holes are provided with positioning mechanisms, the positioning mechanisms include positioning screws, limiting gaskets, glue bags, threaded holes and positioning pillars, the positioning pillars are arranged below the circuit board body, the positioning pillars are provided with threaded holes, the bottom of the threaded holes are provided with glue bags, the threaded holes are provided with positioning screws, the positioning screws are provided with limiting gaskets, the positioning pillars are provided with heating mechanisms, the heating mechanisms include heating wires, positioning bayonet sockets, heat insulation cover bodies, contacts and mounting grooves, the heat insulation cover bodies are fixedly installed on the positioning pillars, the upper and lower ends of the heat insulation cover bodies are provided with positioning bayonet sockets, the heat insulation cover bodies are provided with heating wires, the surface of the heat insulation cover bodies is provided with mounting grooves, and the mounting grooves are provided with contacts.

[0006] Furthermore, a through hole is provided in the middle of the limiting gasket, and the limiting gasket is installed on the positioning screw through the through hole.

[0007] Furthermore, the positioning screw is connected to the positioning pillar through a threaded hole, the positioning screw passes through the circuit board body through a mounting through hole, and the circuit board body is restricted on the positioning pillar by the positioning screw.

[0008] Furthermore, a conducting wire is provided between the heating wire and the contact, and the heating wire and the contact are connected in series through the conducting wire.

[0009] Furthermore, the heat insulation cover is installed on the positioning pillar through a positioning bayonet, the heating wire is restricted outside the positioning pillar by the heat insulation cover, and the contact is installed on the surface of the heat insulation cover through a mounting groove.

[0010] Furthermore, the circuit board body is mounted on the housing of the vehicle computer via a positioning mechanism.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the positioning pillar is preset in the shell of the vehicle-mounted computer, and the circuit board body can be fixed on the positioning pillar by the positioning screw. After the circuit board body is fixed on the positioning pillar, the glue bag will be crushed, so that the positioning screw can be fixed by glue to prevent the waterproof positioning screw from loosening. Secondly, during maintenance, the power supply can be connected to the contact to turn on the power of the heating wire. After the power of the heating wire is turned on, the positioning pillar can be heated to melt the glue in the threaded hole, so that the user can loosen the positioning screw and remove the circuit board body for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the positioning mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the heating mechanism of the present utility model.

[0016] In the figure: 1. Circuit board body; 2. Mounting through hole; 3. Circuit board components; 4. Positioning mechanism; 401. Positioning screw; 402. Limiting gasket; 403. Glue bag; 404. Threaded hole; 405. Positioning pillar; 5. Heating mechanism; 501. Heating wire; 502. Positioning bayonet; 503. Heat insulation cover; 504. Contact; 505. Mounting groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1 to Figure 3As shown, a circuit board for tightening and preventing loosening includes a circuit board body 1, a circuit board component 3 is arranged on the upper surface of the circuit board body 1, mounting through holes 2 are opened at the four corners of the circuit board body 1, and a positioning mechanism 4 is arranged at the mounting through hole 2. The positioning mechanism 4 includes a positioning screw 401, a limiting gasket 402, a glue bag 403, a threaded hole 404 and a positioning pillar 405. The positioning pillar 405 is provided with a heating mechanism 5, and the heating mechanism 5 includes an electric heating wire 501, a positioning bayonet 502, a heat insulation cover 503, a contact 504 and a mounting groove 505. The circuit board body 1 is installed on the housing of the driving computer through the positioning mechanism 4

[0019] A positioning mechanism 4 is provided at the mounting through hole 2, and the positioning mechanism 4 includes a positioning screw 401, a limiting gasket 402, a glue bag 403, a threaded hole 404 and a positioning pillar 405. The positioning pillar 405 is arranged below the circuit board body 1, and a threaded hole 404 is opened on the positioning pillar 405. A glue bag 403 is provided at the bottom of the threaded hole 404, a positioning screw 401 is provided in the threaded hole 404, and a limiting gasket 402 is provided on the positioning screw 401. During use, the mounting through hole 2 can be aligned with the threaded hole 404. After the mounting through hole 2 is aligned with the threaded hole 404, the positioning screw 401 can be screwed into the threaded hole 404, so that the circuit board body 1 is fixed on the positioning pillar 405, and after the positioning screw 401 is screwed into the threaded hole 404, the glue bag 403 will be crushed, so that the positioning screw 401 is fixed by glue, and the waterproof positioning screw 401 is loosened.

[0020] A heating mechanism 5 is provided on the positioning pillar 405, and the heating mechanism 5 includes a heating wire 501, a positioning bayonet 502, a heat insulating cover 503, a contact 504 and a mounting groove 505. The heat insulating cover 503 is fixedly installed on the positioning pillar 405, and positioning bayonet 502 is provided at the upper and lower ends of the heat insulating cover 503. The heat insulating cover 503 is provided with a heating wire 501, and a mounting groove 505 is provided on the surface of the heat insulating cover 503. The mounting groove 505 is provided with a contact 504. During maintenance, a power supply can be connected to the contact 504 to turn on the power of the heating wire 501. After the power of the heating wire 501 is turned on, the positioning pillar 405 can be heated to melt the glue in the threaded hole 404, so that the user can loosen the positioning screw 401 and remove the circuit board body 1 for maintenance.

[0021] It should be noted that the utility model is a circuit board that is fastened to prevent loosening. In actual use, the positioning pillar 405 is first preset in the shell of the vehicle-mounted computer. Since a through hole is opened in the middle position of the limiting gasket 402, the limiting gasket 402 is installed on the positioning screw 401 through the through hole. The positioning screw 401 is connected to the positioning pillar 405 through the threaded hole 404. The positioning screw 401 passes through the circuit board body 1 through the installation through hole 2. The circuit board body 1 is restricted on the positioning pillar 405 by the positioning screw 401. Therefore, the circuit board body 1 can be fixed on the positioning pillar 405 by the positioning screw 401. After the circuit board body 1 is fixed on the positioning pillar 405, the glue bag 403 will be crushed, so that the positioning screw 401 is fixed by glue, and the waterproof positioning screw 401 is prevented from loosening. At the same time, since a wire is provided between the heating wire 501 and the contact 504, the heating wire 501 and the contact 504 are connected in series through the wire. The heat insulation cover 503 is installed on the positioning pillar 405 through the positioning bayonet 502, the heating wire 501 is restricted on the outside of the positioning pillar 405 by the heat insulation cover 503, and the contact 504 is installed on the surface of the heat insulation cover 503 through the mounting groove 505. Therefore, during maintenance, the power supply can be connected to the contact 504 to turn on the power of the heating wire 501. After the power of the heating wire 501 is turned on, the positioning pillar 405 can be heated, so that the glue in the threaded hole 404 melts, so that the user can loosen the positioning screw 401 and remove the circuit board body 1 for maintenance.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A circuit board for tightening and preventing loosening, characterized in that: The invention comprises a circuit board body (1), wherein the upper surface of the circuit board body (1) is provided with circuit board components (3), the four corners of the circuit board body (1) are provided with mounting through holes (2), the mounting through holes (2) are provided with positioning mechanisms (4), the positioning mechanisms (4) comprise positioning screws (401), limiting gaskets (402), glue bags (403), threaded holes (404) and positioning pillars (405), the positioning pillars (405) are arranged below the circuit board body (1), the threaded holes (404) are provided on the positioning pillars (405), the bottom of the threaded holes (404) are provided with glue bags (403), the threaded holes (404) are provided with positioning screws (401), and the positioning screws (401) are provided in the threaded holes (404). 01), a limiting gasket (402) is provided on the positioning screw (401), a heating mechanism (5) is provided on the positioning pillar (405), the heating mechanism (5) comprises a heating wire (501), a positioning bayonet (502), a heat insulating cover (503), a contact (504) and a mounting groove (505), the heat insulating cover (503) is fixedly installed on the positioning pillar (405), the upper and lower ends of the heat insulating cover (503) are provided with positioning bayonet (502), the heat insulating cover (503) is provided with a heating wire (501), the surface of the heat insulating cover (503) is provided with a mounting groove (505), and the mounting groove (505) is provided with a contact (504).

2. A circuit board for tightening and preventing loosening according to claim 1, characterized in that: A through hole is provided in the middle of the limiting gasket (402), and the limiting gasket (402) is installed on the positioning screw (401) through the through hole.

3. A circuit board for tightening and preventing loosening according to claim 2, characterized in that: The positioning screw (401) is connected to the positioning pillar (405) through the threaded hole (404), the positioning screw (401) passes through the circuit board body (1) through the mounting through hole (2), and the circuit board body (1) is restricted on the positioning pillar (405) by the positioning screw (401).

4. A circuit board for fastening and preventing loosening according to claim 3, characterized in that: A conducting wire is provided between the heating wire (501) and the contact (504), and the heating wire (501) and the contact (504) are connected in series via the conducting wire.

5. A circuit board for fastening and preventing loosening according to claim 4, characterized in that: The heat insulation cover (503) is installed on the positioning pillar (405) through the positioning bayonet (502), the heating wire (501) is restricted on the outside of the positioning pillar (405) by the heat insulation cover (503), and the contact (504) is installed on the surface of the heat insulation cover (503) through the installation groove (505).

6. A circuit board for tightening and preventing loosening according to claim 5, characterized in that: The circuit board body (1) is mounted on the housing of the vehicle-mounted computer via a positioning mechanism (4).

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