Overvoltage protection switching power supply

Abstract

The utility model relates to the technical field of switching power supplies, and discloses an overvoltage protection switching power supply, which comprises a bottom plate and a substrate, the front end of the bottom plate is provided with a heat exchange plate, and the other end of a cooling water pipe is connected with the heat exchange plate. According to the base plate, the grooves are formed in the two sides of the bottom plate and used for hiding the water outlet and the water inlet in the grooves, the cavity is formed in the bottom plate, and therefore the cooling water pipe can be installed in the cavity, and when the cooling water pipe is used, the base plate is used for supporting the bottom of the cooling water pipe; the heat exchange plate is installed on the front end face of the bottom plate and used for being in direct contact with the base plate to form heat exchange, cooling water is introduced into the cooling water pipe from the position of the water inlet, and after the cooling water is stored in the cooling water pipe, heat exchange work is formed under the cooperation of the heat exchange plate and the heat exchange plate; and after a period of time, cooling water is discharged from the position of the water outlet for replacement, so that the overall heat dissipation and cooling effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, in particular to an overvoltage protection switching power supply. Background Technique

[0002] A switching power supply is an electronic device that converts alternating current into direct current. It controls the on-off of the circuit by the conduction and cut-off of the switching tube, thereby realizing the conversion of alternating current to direct current. It has the characteristics of high efficiency, small volume, light weight, good stability, etc. Therefore, switching power supplies are also widely used in modern electronic products;

[0003] Among them, in order to ensure the normal operation of the switching power supply, overvoltage protection is added to it. Overvoltage protection refers to a protection method that disconnects the power supply or reduces the voltage of the controlled device when the voltage of the protected line exceeds the predetermined maximum value. Therefore, a switching power supply with overvoltage protection is called an overvoltage protection switching power supply. During its actual operation, due to the presence of multiple electronic components, accumulated heat will be generated. If the heat is relatively high for a long time, it will directly affect its service life. Content of the Utility Model

[0004] The purpose of the utility model is to provide an overvoltage protection switching power supply to solve the problem that during actual operation, due to the presence of multiple electronic components, accumulated heat will be generated. If the heat is relatively high for a long time, it will directly affect its service life as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an overvoltage protection switching power supply, including a bottom plate and a substrate. A heat exchange plate is installed at the front end of the bottom plate. Grooves are formed on both sides of the bottom plate. A water outlet is installed inside one of the grooves, and a water inlet is installed inside the other groove. A cavity is formed inside the bottom plate, and a cooling water pipe is installed inside the cavity. One end of the cooling water pipe is connected to a backing plate, and the other end of the cooling water pipe is connected to a heat exchange plate.

[0006] Preferably, the grooves are symmetrically distributed about the central axis of the bottom plate and are evenly distributed on both sides of the bottom plate.

[0007] Preferably, one side of the water outlet is in communication with the inside of the cooling water pipe, and the inside of the water inlet is in communication with the inside of the cooling water pipe.

[0008] Preferably, a power supply terminal circuit is installed at a position near the top of the front end of the substrate, an output terminal circuit is installed at a position near the bottom of the front end of the substrate, an overvoltage protector is installed on one side of the front end of the substrate, a rectification circuit is provided on one side of the overvoltage protector, a transformer body is provided on one side of the rectification circuit, and a switching power supply chip is provided on one side of the transformer body.

[0009] Preferably, positioning holes are provided at the peripheral positions of the substrate. At the top and bottom of the inner wall of the positioning hole, snap rings are installed. One end of the snap ring is connected to an arc-shaped plate, and an insulating pad is fixed to the inner wall of the arc-shaped plate.

[0010] Preferably, the positioning holes are symmetrically distributed about the central axis of the substrate. The snap rings are evenly distributed at the top and bottom inside the positioning holes, and the arc-shaped plates are symmetrically distributed about the central axis of the positioning holes.

[0011] Preferably, an insulating coating is applied to the outer side wall of the substrate. Support plates are fixed at the front and rear ends inside the substrate. A first strengthening rod is installed between the support plates. A connecting block is connected between the first strengthening rods, and a connecting rod is provided at one end of the connecting block.

[0012] Preferably, the support plates are symmetrically distributed about the central axis of the substrate, and the first strengthening rods are evenly distributed between the support plates.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This overvoltage protection switch power supply not only improves the heat dissipation capacity, but also simultaneously improves the insulation protection ability and installation protection ability of this overvoltage protection switch power supply;

[0014] (1) By providing grooves on both sides of the bottom plate, the water outlet and water inlet are hidden inside the grooves, and a cavity is formed inside the bottom plate. Thus, the cooling water pipe can be installed inside the cavity. When the cooling water pipe is in use, the backing plate is used to support the bottom of the cooling water pipe, and the heat exchange plate is installed on the front end face of the bottom plate to directly contact the substrate to form heat exchange. Cooling water is introduced at the position of the water inlet into the inside of the cooling water pipe. When the cooling water is stored inside the cooling water pipe, heat exchange work is formed under the cooperation of the heat transfer plate and the heat exchange plate, thereby improving a certain cooling and heat dissipation capacity. And after a period of time, the cooling water is discharged at the position of the water outlet for replacement, thus ensuring the overall heat dissipation and cooling effect;

[0015] (2) By providing positioning holes at the four corners of the substrate, the positioning holes are used for inserting the pin rods. When the pin rods are inserted, they contact the arc-shaped plates, and under the resilience of the snap rings, a reset clamping operation is formed. And when directly contacting the insulating pad, the overall insulation protection ability is preferably improved;

[0016] (3) By applying an insulating coating to the outer side wall of the substrate for insulation protection, then fixing support plates at the front and rear end faces inside the substrate for support and reinforcement work, and then evenly distributing the first strengthening rods between the support plates, and under the connection and installation of the connecting block and the connecting rod, the overall support protection ability is preferably improved, and its deformation phenomenon is reduced. Description of the Drawings

[0017] Figure 1 is the front view structural schematic diagram of the present utility model;

[0018] Figure 2 is the bottom view sectional structural schematic diagram of the bottom plate of the present utility model;

[0019] Figure 3 is the partial front view structural schematic diagram of the substrate of the present utility model;

[0020] Figure 4 is the partial top view sectional structural schematic diagram of the substrate of the present utility model.

[0021] In the figure: 1. Bottom plate; 2. Substrate; 3. Overvoltage protector; 4. Power supply terminal circuit; 5. Transformer body; 6. Switching power supply chip; 7. Rectifying circuit; 8. Power output terminal circuit; 9. Pad; 10. Cooling water pipe; 11. Heat exchange plate; 12. Groove; 13. Water outlet; 14. Heat exchange plate; 15. Cavity; 16. Water inlet; 17. Positioning hole; 18. Snap ring; 19. Arc plate; 20. Insulating pad; 21. Insulating coating; 22. Support plate; 23. First reinforcing rod; 24. Connecting block; 25. Connecting rod. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present utility model: an overvoltage protection switching power supply, including a bottom plate 1 and a substrate 2. A heat exchange plate 14 is installed at the front end of the bottom plate 1. Grooves 12 are formed on both sides of the bottom plate 1. A water outlet 13 is installed inside one side groove 12, and a water inlet 16 is installed inside the other side groove 12. A cavity 15 is formed inside the bottom plate 1, and a cooling water pipe 10 is installed inside the cavity 15. One end of the cooling water pipe 10 is connected to a pad 9, and the other end of the cooling water pipe 10 is connected to a heat exchange plate 11.

[0024] The grooves 12 are symmetrically distributed about the central axis of the bottom plate 1, and the grooves 12 are evenly distributed on both sides of the bottom plate 1.

[0025] One side of the water outlet 13 is in communication with the inside of the cooling water pipe 10, and the inside of the water inlet 16 is in communication with the inside of the cooling water pipe 10.

[0026] At a position near the top of the front end of the substrate 2, a power supply terminal circuit 4 is installed. At a position near the bottom of the front end of the substrate 2, a power output terminal circuit 8 is installed. On one side of the front end of the substrate 2, an overvoltage protector 3 is installed. On one side of the overvoltage protector 3, a rectifier circuit 7 is provided. On one side of the rectifier circuit 7, a transformer body 5 is provided. On one side of the transformer body 5, a switching power supply chip 6 is provided.

[0027] Positioning holes 17 are provided at the peripheral positions of the substrate 2. At the top and bottom of the inner wall of the positioning hole 17, clamping springs 18 are installed. One end of the clamping spring 18 is connected to an arc-shaped plate 19. An insulating pad 20 is fixed to the inner wall of the arc-shaped plate 19.

[0028] The positioning holes 17 are symmetrically distributed about the central axis of the substrate 2. The clamping springs 18 are evenly distributed at the top and bottom inside the positioning holes 17. The arc-shaped plates 19 are symmetrically distributed about the central axis of the positioning holes 17.

[0029] The outer wall of the substrate 2 is coated with an insulating coating 21. At the front and rear ends inside the substrate 2, support plates 22 are fixed. Between the support plates 22, a first reinforcing rod 23 is installed. Between the first reinforcing rods 23, a connecting block 24 is connected. One end of the connecting block 24 is provided with a connecting rod 25.

[0030] The support plates 22 are symmetrically distributed about the central axis of the substrate 2. The first reinforcing rods 23 are evenly distributed between the support plates 22;

[0031] Furthermore, the positioning holes 17 are distributed at the four corners of the substrate 2. The positioning holes 17 are used to position the substrate 2, and they need to cooperate with a pin rod to form a positioning operation during work.

[0032] Working principle: First, the insulating coating 21 is coated on the outer wall of the substrate 2 for insulation protection. Then, support plates 22 are fixed on the front and rear end faces inside the substrate 2 for support and reinforcement work. The first reinforcing rods 23 are evenly distributed between the support plates 22 for support and reinforcement. Electronic components such as the power supply terminal circuit 4, transformer body 5, switching power supply chip 6, rectifier circuit 7, and power output terminal circuit 8 on the end face of the substrate 2 cooperate to work. At the same time, an overvoltage protection is formed by using the overvoltage protector 3. During work, cooling water is introduced into the interior of the cooling water pipe 10 at the position of the water inlet 16. When the cooling water is stored in the interior of the cooling water pipe 10, a heat exchange work is formed under the cooperation of the heat exchange plate 11 and the heat exchange plate 14, so as to ensure the cooling effect during work.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An overvoltage protection switching power supply, comprising a base plate (1) and a substrate (2), characterized in that: A heat exchange plate (14) is installed at the front end of the bottom plate (1). Grooves (12) are formed on both sides of the bottom plate (1). A water outlet (13) is installed inside one of the grooves (12), and a water inlet (16) is installed inside the other groove (12). A cavity (15) is formed inside the bottom plate (1), and a cooling water pipe (10) is installed inside the cavity (15). One end of the cooling water pipe (10) is connected to a backing plate (9), and the other end of the cooling water pipe (10) is connected to a heat exchange plate (11).

2. The overvoltage protection switching power supply according to claim 1, wherein: The grooves (12) are symmetrically distributed about the central axis of the bottom plate (1), and the grooves (12) are evenly distributed on both sides of the bottom plate (1).

3. The overvoltage protection switching power supply according to claim 1, wherein: One side of the water outlet (13) is in internal communication with the inside of the cooling water pipe (10), and the inside of the water inlet (16) is in internal communication with the inside of the cooling water pipe (10).

4. The overvoltage protection switching power supply according to claim 1, characterized in that: A power supply terminal circuit (4) is installed at a position near the top end of the front end of the substrate (2), and a power output terminal circuit (8) is installed at a position near the bottom end of the front end of the substrate (2). A overvoltage protector (3) is installed on one side of the front end of the substrate (2). A rectifying circuit (7) is provided on one side of the overvoltage protector (3), a transformer body (5) is provided on one side of the rectifying circuit (7), and a switching power supply chip (6) is provided on one side of the transformer body (5).

5. The overvoltage protection switching power supply according to claim 1, characterized in that: Positioning holes (17) are formed at the peripheral positions of the substrate (2). Snap rings (18) are installed at the top and bottom ends of the inner wall of the positioning holes (17). One end of the snap ring (18) is connected to an arc-shaped plate (19), and an insulating pad (20) is fixed to the inner wall of the arc-shaped plate (19).

6. The overvoltage protection switching power supply according to claim 5, wherein: The positioning holes (17) are symmetrically distributed about the central axis of the substrate (2), the snap rings (18) are evenly distributed at the top and bottom ends inside the positioning holes (17), and the arc-shaped plates (19) are symmetrically distributed about the central axis of the positioning holes (17).

7. The overvoltage protection switching power supply according to claim 1, characterized in that: The outer side wall of the substrate (2) is coated with an insulating coating (21). Support plates (22) are fixed at the front and rear ends inside the substrate (2). A first reinforcing rod (23) is installed between the support plates (22). A connecting block (24) is connected between the first reinforcing rods (23), and a connecting rod (25) is provided at one end of the connecting block (24).

8. The overvoltage protection switching power supply according to claim 7, wherein: The support plates (22) are symmetrically distributed about the central axis of the substrate (2), and the first reinforcing rods (23) are evenly distributed between the support plates (22).

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