Excitation voltmeter

Abstract

The utility model relates to the technical field of voltmeters, in particular to an excitation voltmeter which comprises a voltmeter body, an instrument panel is arranged on the upper portion of the front side wall of the voltmeter body, supporting plates are rotatably installed on the left side wall and the right side wall of the voltmeter body, and adjusting assemblies are arranged on the side walls of the supporting plates. A reinforcing rod is fixedly installed between the supporting plates on the left side and the right side, a damping assembly is arranged in the middle of an inner cavity of the reinforcing rod, air inlet holes are formed in the left side and the right side of the upper end face of the reinforcing rod, and a cooling assembly is arranged on the side wall of the reinforcing rod. The beneficial effects are that through the arrangement of the adjusting assembly, the voltmeter body can be placed on a table top in a multi-angle manner, a user can conveniently observe experimental data, through the arrangement of the damping assembly, the friction force between the voltmeter and the table top can be increased, the voltmeter cannot easily slide on the table top, a test circuit is prevented from falling off, and the service life of the voltmeter is prolonged. Therefore, the safe use of the excitation voltmeter is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of voltmeters, in particular to an excitation voltmeter. Background Technique

[0002] An excitation voltmeter is an instrument used to measure the DC voltage of the stator of an exciter. In electrical equipment such as generators that work based on the principle of electromagnetic induction, the process of providing a working magnetic field is called excitation, and the voltage required in this process is the excitation voltage. Therefore, the excitation voltmeter plays a crucial role in the operation and maintenance of equipment such as generators. It can help operators monitor the changes in the excitation voltage in real time, thereby ensuring the normal operation of the equipment.

[0003] In the prior art, when using an excitation voltmeter, users generally place it directly on the desktop. When conducting experimental analysis, users need to walk back and forth in the experimental site. Since the excitation voltmeter is directly placed on the platform, there will be a certain slope angle between it and the user's line of sight, which will make it difficult for users to clearly view the data on the excitation voltmeter, presenting certain limitations. Content of the Utility Model

[0004] The purpose of the utility model is to provide an excitation voltmeter to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An excitation voltmeter includes a voltmeter body. On the upper part of the front side wall of the voltmeter body, there is a dashboard. On the front side wall of the voltmeter body, there are control buttons. On the left and right side walls of the voltmeter body, there are rotatably installed support plates. On the side wall of the support plate, there is an adjustment component. Between the support plates on the left and right sides, there is a reinforcing rod fixedly installed. In the middle of the inner cavity of the reinforcing rod, there is a damping component. On the left and right sides of the upper end face of the reinforcing rod, there are air inlet holes opened. On the side wall of the reinforcing rod, there is a cooling component.

[0007] Preferably, the adjustment component includes a support rod fixedly installed on the side wall of the voltmeter body and a worm gear fixedly installed on the side wall of the right support rod. On the side wall of the right support plate, there is a servo motor fixedly installed through a frame. At the output shaft end of the servo motor, there is a worm fixedly installed.

[0008] Preferably, the worm is meshed with the worm gear. The shape of the voltmeter body is set to be bent. On the rear side wall of the voltmeter body, there is a storage battery electrically connected to the servo motor. On the upper left and right sides of the front side wall of the voltmeter body, there are power sockets fixedly installed.

[0009] Preferably, the damping component includes a spring groove formed on the upper end surface of the reinforcing rod. A return spring is fixedly installed on the inner side wall of the spring groove. A movable rod is slidably installed in the inner cavity of the spring groove. A damping seat is fixedly installed on the lower end surface of the movable rod. A top plate is fixedly installed on the upper end surface of the movable rod.

[0010] Preferably, the other end of the return spring is fixedly installed on the side wall of the top plate. The damping seat is arranged in a suction cup shape. Both the support plate and the reinforcing rod are made of light materials. The length of the support plate is greater than the length of the upper side wall of the voltmeter body.

[0011] Preferably, the cooling component includes a fixed shell fixedly installed on the side wall of the reinforcing rod, and a positioning frame fixedly installed on the inner side wall of the inner cavity of the fixed shell. A heat dissipation fan is fixedly installed on the side wall of the positioning frame.

[0012] Preferably, the fixed shell is concentrically arranged with the air inlet hole. Two groups of cooling components are arranged on the side wall of the reinforcing rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] With the arrangement of the adjustment component in the present utility model, the voltmeter body can be placed on the table at multiple angles, enabling the instrument panel on the voltmeter body to face the user's line of sight directly, facilitating the user's observation of experimental data. With the arrangement of the damping component, the friction between the voltmeter and the table can be increased, preventing the voltmeter from sliding easily on the table and avoiding the disconnection of the test circuit, thus ensuring the safe use of the excitation voltmeter. With the arrangement of the cooling component, the heat on the back side wall of the voltmeter can be removed, enabling the voltmeter to work in a good working environment, and blowing the front surface of the voltmeter body to clean the dust remaining on the surface of the voltmeter body during use, ensuring the safety of the excitation voltmeter during later storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view overall structure schematic diagram of the present utility model;

[0016] Figure 2 is the rear view overall structure schematic diagram of the present utility model;

[0017] Figure 3 is the connection structure schematic diagram of the support plate of the present utility model;

[0018] Figure 4 is the structure schematic diagram of the support plate of the present utility model in the storage state.

[0019] In the figure: 1. Voltmeter body; 11. Instrument panel; 12. Control button; 13. Energy storage battery; 14. Power socket; 2. Support plate; 3. Adjusting component; 31. Support rod; 32. Worm gear; 33. Servo motor; 34. Worm; 4. Reinforcing rod; 5. Damping component; 51. Spring groove; 52. Return spring; 53. Movable rod; 54. Damping seat; 55. Top plate; 6. Air inlet hole; 7. Cooling component; 71. Fixed shell; 72. Positioning frame; 73. Cooling fan. Detailed implementation mode

[0020] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model. Embodiment 1

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution:

[0022] An excitation voltmeter includes a voltmeter body 1. An instrument panel 11 is arranged on the upper part of the front side wall of the voltmeter body 1. A control button 12 is arranged on the front side wall of the voltmeter body 1. Support plates 2 are rotatably installed on the left and right side walls of the voltmeter body 1. An adjusting component 3 is arranged on the side wall of the support plate 2. A reinforcing rod 4 is fixedly installed between the support plates 2 on the left and right sides. A damping component 5 is arranged in the middle of the inner cavity of the reinforcing rod 4. Air inlet holes 6 are opened on the left and right sides of the upper end surface of the reinforcing rod 4. A cooling component 7 is arranged on the side wall of the reinforcing rod 4.

[0023] Furthermore, the adjusting component 3 includes a support rod 31 fixedly installed on the side wall of the voltmeter body 1, and a worm gear 32 fixedly installed on the side wall of the right support rod 31. A servo motor 33 is fixedly installed on the side wall of the right support plate 2 through a frame. A worm 34 is fixedly installed at the output shaft end of the servo motor 33;

[0024] The worm 34 is meshed and connected with the worm gear 32. The shape of the voltmeter body 1 is set to be bent. An energy storage battery 13 electrically connected to the servo motor 33 is arranged on the rear side wall of the voltmeter body 1. Power sockets 14 are fixedly installed on the upper left and right sides of the front side wall of the voltmeter body 1.

[0025] It should be noted that after the user places the entire voltmeter on the desktop, the worm 34 is rotated by starting the servo motor 33. Since the worm 34 is meshed and connected with the worm wheel 32, and the worm wheel 32 is fixedly installed on the side wall of the voltmeter body 1 through the support rod 31, at this time, the worm 34 will rotate along the teeth of the worm wheel 32. Since the servo motor 33 is fixedly installed on the side wall of the support plate 2, the support plate 2 will rotate downward, and one end of the support plate 2 and the voltmeter body 1 will abut against the desktop. At this time, the orientation of the voltmeter body 1 will continuously change, so that the dashboard 11 on the voltmeter body 1 can face the user's line of sight directly, which helps the user to observe the experimental data. Embodiment 2

[0026] On the basis of Embodiment 1, in order to realize how to improve the grip of the entire voltmeter.

[0027] Further, the damping assembly 5 includes a spring groove 51 opened on the upper end surface of the reinforcing rod 4. A return spring 52 is fixedly installed on the inner side wall of the spring groove 51. A movable rod 53 is slidably installed in the inner cavity of the spring groove 51. A damping seat 54 is fixedly installed on the lower end surface of the movable rod 53. A top plate 55 is fixedly installed on the upper end surface of the movable rod 53;

[0028] The other end of the return spring 52 is fixedly installed on the side wall of the top plate 55. The damping seat 54 is set in a suction cup shape. Both the support plate 2 and the reinforcing rod 4 are made of light materials.

[0029] It should be noted that when placing the entire voltmeter, under the elastic force of the return spring 52, the return spring 52 can pull the top plate 55 to move the movable rod 53 downward to the lower part of the reinforcing rod 4, so that the damping seat 54 fixed at the end of the movable rod 53 can be in close contact with the desktop all the time, so as to increase the friction between the voltmeter body 1 and the desktop, prevent the voltmeter from sliding on the desktop easily, prevent the test line from falling off, and further ensure the safe use of the excitation voltmeter. Embodiment 3

[0030] On the basis of Embodiment 2, in order to realize cooling, heat dissipation and dust removal of the voltmeter.

[0031] Further, the cooling assembly 7 includes a fixed shell 71 fixedly installed on the side wall of the reinforcing rod 4, and a positioning frame 72 fixedly installed on the inner side wall of the inner cavity of the fixed shell 71. A heat dissipation fan 73 is fixedly installed on the side wall of the positioning frame 72;

[0032] The fixed shell 71 is concentrically arranged with the air inlet hole 6. Two groups of cooling assemblies 7 are arranged on the side wall of the reinforcing rod 4.

[0033] During actual use, after the user places the entire voltmeter on the desktop, the worm 34 is rotated by starting the servo motor 33. Since the worm 34 is meshed and connected with the worm wheel 32, and the worm wheel 32 is fixedly installed on the side wall of the voltmeter body 1 through the support rod 31, at this time, the worm 34 will rotate along the teeth of the worm wheel 32. Since the servo motor 33 is fixedly installed on the side wall of the support plate 2, the support plate 2 will rotate downward. One end of the support plate 2 and the voltmeter body 1 will abut on the desktop. At this time, the orientation of the voltmeter body 1 will continuously change, so that the dashboard 11 on the voltmeter body 1 can face the user's line of sight directly, which helps the user to observe the experimental data;

[0034] When placing the entire voltmeter, under the elastic force of the return spring 52, the return spring 52 can pull the top plate 55 to move the movable rod 53 downward to the lower part of the reinforcing rod 4, so that the damping seat 54 fixed at the end of the movable rod 53 can be in close contact with the desktop all the time, so as to increase the friction between the voltmeter body 1 and the desktop, prevent the voltmeter from sliding easily on the desktop, prevent the test circuit from falling off, and thus ensure the safe use of the excitation voltmeter;

[0035] After the voltmeter is placed, when the user starts the cooling fan 73 in the fixed shell 71, the cold air from the outside can be ejected from the fixed shell 71 through the air inlet hole 6, accelerating the gas flow. The formed cold air can take away the heat on the back side wall of the voltmeter, enabling the voltmeter to work in a good working environment and ensuring the good service life of the excitation voltmeter. After the voltmeter is used up, the user can store the support plate 2 on the upper part of the voltmeter body 1. By starting the cooling fan 73, the front surface of the voltmeter body 1 can be blown to clean the dust remaining on the surface of the voltmeter body 1 during use, facilitating the safety of the later storage of the voltmeter body 1.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An excitation voltmeter, comprising a voltmeter body (1), wherein a dashboard (11) is arranged on the upper part of the front side wall of the voltmeter body (1), and control buttons (12) are arranged on the front side wall of the voltmeter body (1), and it is characterized in that: On the left and right side walls of the voltmeter body (1), support plates (2) are rotatably installed. An adjustment assembly (3) is arranged on the side wall of the support plate (2). A reinforcing rod (4) is fixedly installed between the left and right support plates (2). A damping assembly (5) is arranged in the middle of the inner cavity of the reinforcing rod (4). Air inlet holes (6) are formed on the left and right sides of the upper end surface of the reinforcing rod (4). A cooling assembly (7) is arranged on the side wall of the reinforcing rod (4).

2. The exciting voltage meter according to claim 1, wherein: The adjustment assembly (3) includes a support rod (31) fixedly installed on the side wall of the voltmeter body (1), and a worm gear (32) fixedly installed on the side wall of the right support rod (31). On the side wall of the right support plate (2), a servo motor (33) is fixedly installed through a frame. A worm (34) is fixedly installed at the output shaft end of the servo motor (33).

3. The exciting voltage meter according to claim 2, characterized in that: The worm (34) is meshed and connected with the worm gear (32). The shape of the voltmeter body (1) is set to be bent. An energy storage battery (13) electrically connected to the servo motor (33) is arranged on the rear side wall of the voltmeter body (1). Power sockets (14) are fixedly installed on the upper left and right sides of the front side wall of the voltmeter body (1).

4. An excitation voltmeter according to claim 1, characterized in that: The damping assembly (5) includes a spring groove (51) formed on the upper end surface of the reinforcing rod (4). A return spring (52) is fixedly installed on the inner side wall of the spring groove (51). A movable rod (53) is slidably installed in the inner cavity of the spring groove (51). A damping seat (54) is fixedly installed on the lower end surface of the movable rod (53). A top plate (55) is fixedly installed on the upper end surface of the movable rod (53).

5. The exciting voltage meter according to claim 4, wherein: The other end of the return spring (52) is fixedly installed on the side wall of the top plate (55). The damping seat (54) is set in the shape of a suction cup. Both the support plate (2) and the reinforcing rod (4) are made of light materials. The length of the support plate (2) is greater than the length of the upper side wall of the voltmeter body (1).

6. The exciting voltage meter according to claim 1, characterized in that: The cooling assembly (7) includes a fixed shell (71) fixedly installed on the side wall of the reinforcing rod (4), and a positioning frame (72) fixedly installed on the inner side wall of the inner cavity of the fixed shell (71). A heat dissipation fan (73) is fixedly installed on the side wall of the positioning frame (72).

7. An exciting voltage meter according to claim 6, characterized in that: The fixed shell (71) is concentrically arranged with the air inlet hole (6). Two groups of the cooling assemblies (7) are arranged on the side wall of the reinforcing rod (4).

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