Switching power supply overload protection device

Abstract

The utility model belongs to the technical field of power supply protection, and discloses a switching power supply overload protection device which comprises a base and a protection cover, a protector body is arranged at the top of the base, a power transmission rod is fixedly connected to the top of the protector body, a lamp holder is fixedly connected to the top of the protection cover, and a warning lamp is arranged at the top of the lamp holder. The bottom of the lamp holder is fixedly connected with a copper rod. By means of the base, the protector body, the protection cover, the power transmission rod, the warning lamp and the copper rods, due to the fact that the outer wall of the power transmission rod can make contact with the two copper rods, electric leakage of the protector body can be transmitted to the copper rods through the power transmission rod and then transmitted to the lamp holder, a circuit in the lamp holder is connected, and therefore the warning lamp can emit light; a worker can judge whether current exists on the surface of the protector body or not according to whether the warning lamp is lighted or not, so that the device can carry out electric leakage detection on the device, and the safety is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of power supply protection, and more specifically, to a switching power supply overload protection device. Background Art

[0002] As we all know, a switching power supply converts a voltage level into the voltage or current required by the user through different forms of architecture. A switching power supply overload protection device is a protection device that can quickly and automatically disconnect the circuit.

[0003] However, most of the existing switching power supply overload protection devices on the market cannot perform leakage detection on themselves. Therefore, when the device is damaged and needs to be repaired by staff, the staff cannot determine whether the device is energized, which makes it easy for the staff to be electrocuted during maintenance, reducing safety. Utility Model Content

[0004] In order to solve the above problems, the present application provides a switching power supply overload protection device.

[0005] The present application provides a switching power supply overload protection device that adopts the following technical solution:

[0006] A switching power supply overload protection device comprises a base and a protection cover. The top of the base is provided with a protector body, and the top of the protector body is fixedly connected with a transmission pole.

[0007] The top of the protective cover is fixedly connected with a lamp holder, the top of the lamp holder is provided with a warning light, and the bottom of the lamp holder is fixedly connected with a copper rod.

[0008] Furthermore, a heat dissipation hole is opened on the outer wall of the protective cover, the shape of the copper rod is a letter "L"-shaped structure, and the copper rod is fixedly sleeved with the protective cover.

[0009] Through the above technical solution, the heat dissipation holes can realize ventilation inside and outside the protective cover to play a role in heat dissipation, and one end of the copper rod can extend to the inside of the protective cover.

[0010] Furthermore, the outer wall of the protective cover is fixedly connected to a support frame, and the inner wall of the support frame is slidably sleeved with a pull rod.

[0011] Through the above technical solution, the support frame can play an effective supporting role and can be moved by an external control rod of the support frame.

[0012] Furthermore, one end of the pull rod is fixedly connected with a clamping block, and an outer wall of the base is provided with a clamping groove, and the clamping block is slidably engaged with the clamping groove.

[0013] Through the above technical solution, the protective cover can be installed on the base through the clamping connection between the clamping block and the clamping slot to protect the protector body.

[0014] Furthermore, a spring is fixedly connected to one side of the block, and one end of the spring is fixedly connected to the inner side wall of the support frame.

[0015] Through the above technical solution, the elastic force of the spring can be used to reset the pull rod after it is pulled and then released.

[0016] Furthermore, a slide groove is provided on one side of the protective cover, and the clamping block is slidably sleeved in the slide groove.

[0017] Through the above technical solution, the block can slide through the slide groove.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] (1) By setting up the base, protector body, protective cover, transmission rod, warning light and copper rod, since the outer wall of the transmission rod will contact the two copper rods, the leakage of the protector body will be transmitted to the copper rod through the transmission rod, and then to the lamp holder. The circuit inside the lamp holder is connected, so that the warning light can be turned on. The staff can judge whether there is current on the surface of the protector body according to whether the warning light is on, so that the device can detect leakage itself, thereby greatly improving safety.

[0020] (2) By providing the protective cover, card slot, support frame, card block and spring, the protective cover can cover the operating buttons on the surface of the protector body, thereby preventing someone from accidentally touching the operating buttons. When the operating buttons on the surface of the protector body need to be operated, the pull rod is pulled to drive the card block to disengage from the card slot, so that the protective cover can be removed from the base, and the protector body can be operated normally, thereby further meeting the use requirements of the device, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a switching power supply overload protection device;

[0022] Figure 2 A side cross-sectional view of the protective cover in this application;

[0023] Figure 3 This is a schematic diagram of the structure of the warning light in this application;

[0024] Figure 4 for Figure 2 A magnified view of the structure in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Base; 2. Protector body; 3. Protective cover; 4. Transmission pole; 5. Lamp holder; 6. Warning light; 7. Copper rod; 8. Slot; 9. Slide; 10. Support frame; 11. Pull rod; 12. Block; 13. Spring; 14. Heat dissipation hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application discloses a switching power supply overload protection device. Figure 1-4, including a base 1 and a protective cover 3. A protector body 2 is provided on the top of the base 1. A transmission rod 4 is fixedly connected to the top of the protector body 2. A lamp holder 5 is fixedly connected to the top of the protective cover 3. A warning light 6 is provided on the top of the lamp holder 5. A copper rod 7 is fixedly connected to the bottom of the lamp holder 5. Since the outer wall of the transmission rod 4 will contact the two copper rods 7, the leakage of the protector body 2 will be transmitted to the copper rod 7 through the transmission rod 4, and then transmitted to the lamp holder 5. The circuit inside the lamp holder 5 is connected, so that the warning light 6 can be lit. The staff can judge whether there is current on the surface of the protector body 2 according to whether the warning light 6 is lit, so that the device can detect leakage itself, thereby greatly improving safety.

[0032] In this embodiment, a heat dissipation hole 14 is opened on the outer wall of the protective cover 3, and the shape of the copper rod 7 is an "L"-shaped structure. The copper rod 7 is fixedly connected to the protective cover 3. The heat dissipation hole 14 can realize ventilation inside and outside the protective cover 3 and play a role in heat dissipation. One end of the copper rod 7 can extend to the interior of the protective cover 3.

[0033] In this embodiment, the outer wall of the protective cover 3 is fixedly connected to the support frame 10, and the inner wall of the support frame 10 is slidably sleeved with a pull rod 11. The support frame 10 can play an effective supporting role and can be moved by the external control pull rod 11 of the support frame 10.

[0034] In this embodiment, one end of the pull rod 11 is fixedly connected to a clamping block 12, and a clamping groove 8 is opened on the outer wall of the base 1. The clamping block 12 is slidably engaged with the clamping groove 8. Through the engagement of the clamping block 12 with the clamping groove 8, the protective cover 3 can be installed on the base 1 to protect the protector body 2.

[0035] In this embodiment, a spring 13 is fixedly connected to one side of the block 12, and one end of the spring 13 is fixedly connected to the inner wall of the support frame 10. Through the elastic force of the spring 13 itself, after the pull rod 11 is pulled, it will be reset by the elastic force of the spring 13 when it is released.

[0036] In this embodiment, a slide groove 9 is provided on one side of the protection cover 3 , and the clamping block 12 is slidably sleeved with the slide groove 9 , so that the clamping block 12 can slide through the slide groove 9 .

[0037] The implementation principle of a switching power supply overload protection device in the embodiment of the present application is as follows: first, the protection cover 3 is installed on the base 1 and covers the protector body 2, so that the protection cover 3 can cover the operation buttons on the surface of the protector body 2, thereby preventing someone from accidentally touching the operation buttons;

[0038] Secondly, when the protective cover 3 is installed on the base 1, the outer wall of the power transmission rod 4 will contact the two copper rods 7. Since the copper rods 7 are conductive, the leakage of the protector body 2 will be transmitted to the copper rods 7 through the power transmission rod 4, and then transmitted to the lamp holder 5. The circuit inside the lamp holder 5 is connected, so that the warning light 6 is lit. The lighting of the warning light 6 indicates that there is current on the surface of the protector body 2, which serves as a warning to the staff;

[0039] Finally, when the operating button on the surface of the protector body 2 needs to be operated, the pull rod 11 is pulled to drive the block 12 to move, so that the block 12 is disengaged from the slot 8, and the protective cover 3 can be removed from the base 1, and the protector body 2 can be operated normally.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A switching power supply overload protection device, comprising a base (1) and a protective cover (3), characterized in that: A protector body (2) is provided on the top of the base (1), and a transmission pole (4) is fixedly connected to the top of the protector body (2); The top of the protective cover (3) is fixedly connected to a lamp holder (5), the top of the lamp holder (5) is provided with a warning light (6), and the bottom of the lamp holder (5) is fixedly connected to a copper rod (7).

2. A switching power supply overload protection device according to claim 1, characterized in that: The outer wall of the protective cover (3) is provided with a heat dissipation hole (14); the copper rod (7) is in the shape of an "L" letter structure; the copper rod (7) is fixedly sleeved with the protective cover (3).

3. A switching power supply overload protection device according to claim 1, characterized in that: The outer wall of the protective cover (3) is fixedly connected to a support frame (10), and the inner wall of the support frame (10) is slidably sleeved with a pull rod (11).

4. A switching power supply overload protection device according to claim 3, characterized in that: One end of the pull rod (11) is fixedly connected with a clamping block (12), the outer wall of the base (1) is provided with a clamping groove (8), and the clamping block (12) is slidably clamped with the clamping groove (8).

5. A switching power supply overload protection device according to claim 4, characterized in that: A spring (13) is fixedly connected to one side of the clamping block (12), and one end of the spring (13) is fixedly connected to the inner side wall of the support frame (10).

6. A switching power supply overload protection device according to claim 1, characterized in that: A sliding groove (9) is provided on one side of the protective cover (3), and the clamping block (12) is slidably sleeved with the sliding groove (9).

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