High-performance temperature and current sensitive thermal protector for submersible pump

Abstract

The utility model discloses a temperature current sensitive type thermal protector for a high performance submersible pump, relates to the technical field of thermal protectors, and comprises a protector body, a protective shell is arranged at the center of the back end of the protector body, a mounting groove is formed in the center of the back end of the protective shell close to the top, and a sliding groove is formed in the side wall of the protective shell close to the mounting groove. The side end of the sliding groove is slidably connected with an L-shaped plate, the end, close to the mounting groove, of the L-shaped plate is fixedly connected with a heat dissipation plate, the heat dissipation plate is matched with the mounting groove, heat dissipation holes are formed in the heat dissipation plate, and the end, away from the protector body, of the heat dissipation plate is fixedly connected with a baffle. According to the utility model, the rotating handle is rotated, and under the mutual cooperation of the gear, the rack, the long plate, the L-shaped plate, the sliding chute, the heat dissipation plate and the baffle plate, dust can be prevented from protecting the interior of the shell, so that the problem that dust enters the interior of the heat protector through the heat dissipation holes when the heat protector is in a standby state is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal protectors, in particular to a temperature and current sensitive thermal protector for a high-performance submersible pump. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges in the water to extract groundwater to the surface for use as domestic water, farmland irrigation, etc. However, when in use, submersible pumps are prone to failures such as phase loss, three-phase imbalance, and leakage. Therefore, submersible pumps usually need to be equipped with protectors when in use to alarm for circuit failures or cut off the power supply.

[0003] Existing thermal protectors usually have heat dissipation holes on the side to achieve the effect of heat dissipation when the thermal protector is working. However, the heat dissipation holes of the thermal protector are designed to be exposed, so that dust may enter the thermal protector through the heat dissipation holes when the thermal protector is on standby. At the same time, the thermal protector will automatically close when a short circuit occurs. However, when maintenance personnel perform maintenance on the thermal protector at a later stage, they cannot obtain the number of short circuits that have occurred in the thermal protector, which will affect the maintenance personnel's maintenance judgment on the protection period. In response to the above problems, the inventor proposes a temperature and current sensitive thermal protector for a high-performance submersible pump to solve the above problems. Utility Model Content

[0004] In order to solve the problem that dust enters the thermal protector through the heat dissipation holes when the thermal protector is in standby mode, and the problem that maintenance personnel cannot obtain the number of short-circuit situations of the thermal protector when repairing the thermal protector; the purpose of the utility model is to provide a temperature and current sensitive thermal protector for a high-performance submersible pump.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a temperature and current sensitive thermal protector for a high-performance submersible pump, comprising a protector body, a protective shell is provided at the center of the back end of the protector body, a mounting groove is provided at the center of the back end of the protective shell near the top, a slide groove is provided at the side wall of the protective shell near the mounting groove, an L-shaped plate is slidably connected to the side end of the slide groove, a heat sink is fixedly connected to one end of the L-shaped plate near the mounting groove, and the heat sink is matched with the mounting groove, heat dissipation holes are provided inside the heat sink, a baffle is fixedly connected to one end of the heat sink away from the protector body, and the baffle is matched with the heat sink, a knife body is provided at the front end of the protector body near the center, a support plate is fixedly connected to the front end of the protector body near the knife body, a counting button is fixedly connected to one end of the support plate near the knife body, a rolling ball is provided on the side of the knife body near the counting button, and the rolling ball cooperates with the counting button.

[0006] Preferably, a mounting plate is fixedly connected to the side end of the knife body, and the ball is mounted on the side end of the mounting plate, and a display screen is fixedly connected to one end of the support plate away from the knife body.

[0007] Preferably, one end of the L-shaped plate away from the heat dissipation plate is fixedly connected to a long plate, a rack is fixedly connected to the center of the top end of the long plate, and limit blocks are provided on both side ends of the rack.

[0008] Preferably, one end of the L-shaped plate is fixedly connected to an inclined plate, and the other end of the inclined plate is fixedly connected to the long plate, and the side wall of the protective shell is rotatably connected to a gear near the rack, and the gear is meshed with the rack.

[0009] Preferably, a side end of the protective shell is rotatably connected to a handle near the top, and one end of the handle passes through the protective shell and is fixedly connected to the gear.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model provides a mounting plate, a rolling ball, a counting button and a display screen to cooperate with each other, so that it is convenient for the staff to judge the maintenance method of the protector body, thereby solving the problem that the maintenance personnel cannot obtain the number of short circuits of the thermal protector when they are repairing the thermal protector;

[0012] 2. In the utility model, by turning the handle, the gear and rack, the long plate, the L-shaped plate, the slide groove, the heat dissipation plate and the baffle cooperate with each other, thereby preventing dust from entering the interior of the protective shell, thereby solving the problem that dust enters the interior of the thermal protector through the heat dissipation holes when the thermal protector is in standby mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective shell of the utility model.

[0016] Figure 3 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. Protector body; 11. Switch body; 12. Mounting plate; 13. Roller ball; 14. Support plate; 15. Display screen; 16. Counting button; 2. Protective shell; 21. Turn handle; 22. Slide groove; 23. Mounting groove; 24. Heat sink; 25. Baffle; 26. Gear; 27. L-shaped plate; 28. Long plate; 29. ​​Rack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-4 As shown, the utility model provides a technical solution: a temperature and current sensitive thermal protector for a high-performance submersible pump, comprising a protector body 1, a protective shell 2 is provided at the center of the back end of the protector body 1, a mounting groove 23 is provided at the center of the back end of the protective shell 2 near the top, a slide groove 22 is provided at the side wall of the protective shell 2 near the mounting groove 23, an L-shaped plate 27 is slidably connected to the side end of the slide groove 22, and a heat sink 24 is fixedly connected to one end of the L-shaped plate 27 near the mounting groove 23, and the heat sink 24 is adapted to the mounting groove 23, and the heat sink 24 is adapted to the mounting groove 23. Heat dissipation holes are opened inside the heat plate 24, and a baffle 25 is fixedly connected to one end of the heat dissipation plate 24 away from the protector body 1, and the baffle 25 is adapted to the heat dissipation plate 24. A knife body 11 is provided at the front end of the protector body 1 near the center, and a support plate 14 is fixedly connected to the front end of the protector body 1 near the knife body 11. A counting button 16 is fixedly connected to one end of the support plate 14 near the knife body 11, and a rolling ball 13 is provided on one side of the knife body 11 near the counting button 16, and the rolling ball 13 cooperates with the counting button 16.

[0021] A mounting plate 12 is fixedly connected to a side end of the knife body 11 , and a rolling ball 13 is mounted on a side end of the mounting plate 12 .

[0022] By adopting the above technical solution, a mounting plate 12 is provided at the side end of the knife body 11 in order to mount the rolling ball 13 , so as to realize the function of the touch counting button 16 .

[0023] A display screen 15 is fixedly connected to one end of the support plate 14 away from the blade body 11 .

[0024] By adopting the above technical solution, a display screen 15 is provided at the side end of the support plate 14 so as to facilitate the staff to observe the number of tripping of the knife body 11 .

[0025] A long plate 28 is fixedly connected to one end of the L-shaped plate 27 away from the heat dissipation plate 24 .

[0026] By adopting the above technical solution, a long plate 28 is provided at one end of the L-shaped plate 27 in order to install the rack 29 .

[0027] A rack 29 is fixedly connected to the center of the top end of the long plate 28 , and limit blocks are provided on both side ends of the rack 29 .

[0028] By adopting the above technical solution, the rack 29 is provided so as to be able to drive the long board 28 to move under the action of the gear 26 and the slide groove 22.

[0029] One end of the L-shaped plate 27 is fixedly connected to the inclined plate, and the other end of the inclined plate is fixedly connected to the long plate 28 .

[0030] By adopting the above technical solution, an inclined plate is provided at one end of the L-shaped plate 27 in order to support and fix the long plate 28 .

[0031] A gear 26 is rotatably connected to the side wall of the protection housing 2 near the rack 29 , and the gear 26 is meshed with the rack 29 .

[0032] By adopting the above technical solution, after the gear 26 rotates, the meshing rack 29 moves horizontally under the action of the long plate 28.

[0033] A handle 21 is rotatably connected to the side end of the protection shell 2 near the top, and one end of the handle 21 passes through the protection shell 2 and is fixedly connected to the gear 26.

[0034] By adopting the above technical solution, the handle 21 is rotated, so that the fixedly connected gear 26 is rotated.

[0035] Working principle: When the device is in use, when the switch body 11 of the equipment trips, the fixedly connected mounting plate 12 will drive the ball 13 to rotate. After the ball 13 rotates to a certain distance, it will touch the counting button 16 at the same level. At the same time, the number of times the switch body 11 touches the counting button 16 will be displayed on the display screen 15. When the staff is inspecting the protector body 1, the number of trips of the protector body 1 in a period of time can be observed from the display screen 15, which is convenient for the staff to judge the inspection method of the protector body 1, thereby solving the problem that the maintenance personnel cannot obtain how many times the thermal protector has short-circuited when inspecting the thermal protector;

[0036] The protective shell 2 is used to protect the electronic components installed in the protector body 1. When the protector body 1 is working and needs to dissipate heat, the handle 21 can be rotated to rotate the fixedly connected gear 26, thereby making the meshing rack 29 move horizontally under the action of the long plate 28, the L-shaped plate 27 and the slide groove 22, so that the heat sink 24 moves to the installation groove 23. The heat dissipation effect of the internal components of the protective shell 2 can be achieved through the heat sink 24. When the protector is in standby and does not need to work, the handle 21 can be rotated in the opposite direction to move the baffle 25 to the installation groove 23, thereby preventing dust from entering the protective shell 2, thereby solving the problem that dust enters the inside of the thermal protector through the heat dissipation holes when the thermal protector is on standby.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A temperature and current sensitive thermal protector for a high performance submersible pump, comprising a protector body (1), characterized in that: A protective shell (2) is provided at the center of the back end of the protector body (1); a mounting groove (23) is provided at the center of the back end of the protective shell (2) near the top; a sliding groove (22) is provided at the side wall of the protective shell (2) near the mounting groove (23); an L-shaped plate (27) is slidably connected to the side end of the sliding groove (22); a heat sink (24) is fixedly connected to one end of the L-shaped plate (27) near the mounting groove (23); the heat sink (24) is matched with the mounting groove (23); a heat sink (24) is provided inside the heat sink (24); and the heat sink (24) is away from the protector body. A baffle (25) is fixedly connected to one end of the protector body (1), and the baffle (25) is matched with the heat sink (24); a knife body (11) is provided at the front end of the protector body (1) near the center; a support plate (14) is fixedly connected to the front end of the protector body (1) near the knife body (11); a counting button (16) is fixedly connected to one end of the support plate (14) near the knife body (11); a rolling ball (13) is provided on one side of the knife body (11) near the counting button (16), and the rolling ball (13) matches the counting button (16).

2. The high performance submersible pump temperature current sensitive thermal protector according to claim 1, characterized in that: The side end of the knife body (11) is fixedly connected to a mounting plate (12), and the rolling ball (13) is mounted on the side end of the mounting plate (12).

3. The temperature current sensitive thermal protector for a high performance submersible pump according to claim 1, characterized in that: One end of the support plate (14) away from the blade body (11) is fixedly connected to a display screen (15).

4. The high performance submersible pump temperature current sensitive thermal protector according to claim 1, characterized in that: One end of the L-shaped plate (27) away from the heat dissipation plate (24) is fixedly connected to a long plate (28).

5. The temperature current sensitive thermal protector for a high performance submersible pump according to claim 4, characterized in that: A rack (29) is fixedly connected to the center of the top end of the long plate (28), and limit blocks are provided at both side ends of the rack (29).

6. The temperature current sensitive thermal protector for a high performance submersible pump according to claim 4, characterized in that: One end of the L-shaped plate (27) is fixedly connected to an inclined plate, and the other end of the inclined plate is fixedly connected to the long plate (28).

7. The temperature current sensitive thermal protector for a high performance submersible pump according to claim 5, characterized in that: A gear (26) is rotatably connected to the side wall of the protective housing (2) near the rack (29), and the gear (26) is meshed with the rack (29).

8. The temperature current sensitive thermal protector for a high performance submersible pump according to claim 7, characterized in that: A turning handle (21) is rotatably connected to the side end of the protective shell (2) near the top, and one end of the turning handle (21) penetrates the protective shell (2) and is fixedly connected to the gear (26).

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