Digital electric power meter for electric power design

Abstract

The invention discloses a digital electric power meter for electric power design, which comprises a shell, a mounting cavity and a transmission cavity are arranged in the shell, the rear side of the transmission cavity is communicated with the outside, a meter body is arranged in the mounting cavity, and the two sides of the meter body are fixedly connected with mounting plates. The two mounting plates are fixedly connected with the inner wall of the rear side of the mounting cavity through a plurality of mounting screws; and the heat dissipation mechanism comprises a piston cylinder fixedly connected to the inner bottom of the transmission cavity, a piston block capable of sliding up and down is arranged in the piston cylinder, the inner bottom space of the piston cylinder communicates with the inner top space of the mounting cavity through a second one-way pipe, and a temperature guide groove is formed in the inner bottom of the mounting cavity. When the electric power meter is actually used, internal heat dissipation circulation heat dissipation is adopted, on the basis that the heat dissipation effect is guaranteed, the situation that external air is introduced is effectively avoided, the continuous heat dissipation performance is guaranteed, and meanwhile the service life of internal electrical elements is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of power meters, and in particular to a digital power meter for power design. Background Art

[0002] Power engineering, that is, engineering related to the production, transmission, and distribution of electric energy. Broadly speaking, it also includes engineering in which electricity is used as power and energy in various fields. In power design, power meters are usually used. A power meter is a power measurement and control device that provides solutions for power parameter measurement, power quality monitoring and analysis, and electrical equipment control. Currently, existing digital power meters are generally installed in a protection cabinet. However, the protection cabinet has poor heat dissipation, and it is difficult for the digital power meter to dissipate heat in the protection cabinet, resulting in overheating of the digital power meter and affecting its normal use.

[0003] For this reason, the utility model patent with the publication number CN220935469U discloses a digital power meter for power design. One side of the protection cabinet housing is movably connected with a closing door. The protection cabinet housing is fixedly connected with a hinge at a position near the edge adjacent to the movably connected closing door. An exhaust fan is arranged at the top of the protection cabinet housing. Both sides of the inner top end of the protection cabinet housing are fixedly connected with fixed shock absorption mechanisms. An electronic meter main body is movably connected inside the protection cabinet housing. Both sides of the bottom of the electronic meter main body are movably connected with rectangular rubber pads. Both sides of the bottom of the protection cabinet housing are fixedly connected with fixed legs. An intake fan is arranged at the middle position of the bottom of the protection cabinet housing. By providing an intake fan and an exhaust fan, the present invention is beneficial to sending external cold air into the internal rectangular protection cavity and sending out hot air through the exhaust fan, avoiding the temperature in the rectangular protection cavity being too high and affecting the normal operation of the digital power meter.

[0004] However, when the above-mentioned meter is in use, it uses air cooling for heat dissipation from the outside to the inside. Using this heat dissipation method, it is very easy to introduce external moisture and impurities into the cabinet. The entry of dust into the cabinet not only easily accumulates and affects heat dissipation, but also easily reduces the service life of internal electrical components together with moisture. Therefore, how to solve this problem needs to be considered. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a digital power meter for power design is proposed. When the power meter is actually in use, it adopts internal heat dissipation circulation for heat dissipation. On the basis of ensuring the heat dissipation effect, it effectively avoids the situation of introducing external air, ensures continuous heat dissipation, and at the same time ensures the service life of internal electrical components.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A digital power meter for power design, comprising a housing, an installation cavity and a transmission cavity are arranged inside the housing, the rear side of the transmission cavity is communicated with the outside, a meter body is arranged inside the installation cavity, both sides of the meter body are fixedly connected with mounting plates, and the two mounting plates are fixedly connected with the rear inner wall of the installation cavity through a plurality of mounting screws; a heat dissipation mechanism, the heat dissipation mechanism includes a piston cylinder fixedly connected to the bottom inside the transmission cavity, a piston block that can slide up and down is arranged inside the piston cylinder, the inner bottom space of the piston cylinder is communicated with the inner top space of the installation cavity through a second one-way pipe, a heat conduction groove is opened at the inner bottom of the installation cavity, the heat conduction groove is filled with heat conduction oil, the inner space of the piston cylinder is communicated with the inner bottom space of the heat conduction groove through a first one-way pipe, a first one-way valve is installed inside the first one-way pipe, and a second one-way valve is installed inside the second one-way pipe; a driving mechanism, the driving mechanism is used to drive the operation of the heat dissipation mechanism; a stirring mechanism, the stirring mechanism is used to improve the heat dissipation effect of the heat dissipation mechanism.

[0008] Preferably, a sealing door is installed on the front side of the housing, and the sealing door cooperates with the installation cavity.

[0009] Preferably, a liquid discharge port is opened on the front side of the housing, a sealing plug is installed inside the liquid discharge port, and the liquid discharge port cooperates with the heat conduction groove.

[0010] Preferably, an adjustment groove is opened on the right side wall of the installation cavity, and an elastic film is installed inside the adjustment groove.

[0011] Preferably, the driving mechanism includes a mounting frame installed on the right side of the housing, a driving motor is installed on the mounting frame, the output shaft of the driving motor extends into the transmission cavity, a connecting bar is fixedly connected to the inner top of the transmission cavity, the output shaft of the driving motor penetrates through the connecting bar and is rotationally connected through a bearing, the output shaft of the driving motor is fixedly connected with a rotating disk, the upper end of the piston block is rotationally connected with a connecting rod, and the other end of the connecting rod is rotationally connected with the eccentric part of the rotating disk.

[0012] Preferably, the one-way flow direction of the first one-way valve is from the inner space of the piston cylinder to the inner space of the heat conduction groove unidirectionally, and the one-way flow direction of the second one-way valve is from the inner top space of the installation cavity to the inner bottom space of the piston cylinder unidirectionally.

[0013] Preferably, a refrigeration component is installed on the front side of the housing, the refrigeration end of the refrigeration component extends into the heat conduction groove, a heat dissipation plate is horizontally arranged in the inner bottom space of the installation cavity, the four sides of the heat dissipation plate are fixedly connected with the four side inner walls of the installation cavity, and a plurality of shunt holes are opened on the heat dissipation plate.

[0014] Preferably, a refrigeration component is installed on the front side of the housing, the refrigeration end of the refrigeration component extends into the heat conduction groove, a heat dissipation plate is horizontally arranged in the inner bottom space of the installation cavity, four sides of the heat dissipation plate are fixedly connected with four inner side walls of the installation cavity, and a plurality of diversion holes are formed in the heat dissipation plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By driving the rotating disk to rotate through the driving motor, the piston block is driven to move up and down, forming a unique one-way circulating air flow. In cooperation with the use of the refrigeration component, when the air flow passes through the heat conduction groove containing heat conduction oil, the temperature of the circulating gas is effectively reduced by means of the heat transfer principle, achieving a substantial improvement in the overall heat dissipation efficiency.

[0017] 2. The phenomenon of air bubbles floating up when the gas enters the heat conduction oil through the first one-way pipe not only promotes the dynamic circulation of the heat conduction oil liquid but also significantly improves the uniformity of the temperature reduction process. The rotating design of the stirring net further optimizes this process, breaking large air bubbles into finer ones, greatly increasing the contact area between the air bubbles and the heat conduction oil, thereby accelerating the heat transfer and enhancing the heat dissipation effect.

[0018] 3. The present invention adopts an internal circulation heat dissipation method, effectively avoiding the direct introduction of external air, reducing the influence of external factors such as dust and moisture on the internal environment of the equipment, ensuring the continuity and stability of the heat dissipation process. At the same time, this design also reduces the risk of failures of electrical components caused by temperature changes and extends the service life of the equipment. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a digital power meter for power design proposed by the present invention;

[0020] Figure 2 is an enlarged schematic structural diagram of the driving mechanism;

[0021] Figure 3 is Figure 1 front side structural diagram of;

[0022] Figure 4 is a three-dimensional structural diagram of the cooperation between the rotating rod and the stirring net;

[0023] Figure 5 is a three-dimensional structural diagram of the heat dissipation plate.

[0024] In the figure: 1 housing, 2 installation cavity, 3 transmission cavity, 4 mounting bracket, 5 drive motor, 6 rotating shaft, 7 heat conduction groove, 8 rotating rod, 9 second bevel gear, 10 stirring net, 11 heat dissipation plate, 12 shunt hole, 13 instrument body, 14 mounting plate, 15 mounting screw, 16 adjustment groove, 17 elastic film, 18 refrigeration component, 19 first one-way tube, 20 second one-way tube, 21 first one-way valve, 22 second one-way valve, 23 connecting strip, 24 first bevel gear, 25 rotating disc, 26 piston cylinder, 27 connecting rod, 28 piston block, 29 sealing door, 30 liquid discharge port, 31 sealing plug. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] It should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used here, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0027] Referring to Figures 1-5 , a digital power meter for power design, includes a housing 1. An installation cavity 2 and a transmission cavity 3 are arranged in the housing 1. The rear side of the transmission cavity 3 is communicated with the outside. An instrument body 13 is arranged in the installation cavity 2. Mounting plates 14 are fixedly connected to both sides of the instrument body 13. Both mounting plates 14 are fixedly connected to the rear inner wall of the installation cavity 2 through a plurality of mounting screws 15. A sealing door 29 is installed on the front side of the housing 1. The sealing door 29 cooperates with the installation cavity 2. A liquid discharge port 30 is opened on the front side of the housing 1. A sealing plug 31 is installed inside the liquid discharge port 30. The liquid discharge port 30 cooperates with the heat conduction groove 7;

[0028] As an embodiment of the present invention, it further includes a heat dissipation mechanism. The heat dissipation mechanism includes a piston cylinder 26 fixedly connected to the inner bottom of the transmission cavity 3. A piston block 28 that can slide up and down is arranged inside the piston cylinder 26. The inner bottom space of the piston cylinder 26 is communicated with the inner top space of the installation cavity 2 through a second one-way pipe 20. A heat conduction groove 7 is opened at the inner bottom of the installation cavity 2. The heat conduction groove 7 is filled with heat conduction oil, which is a special oil product for indirectly transferring heat and has characteristics such as good thermal stability, high heat transfer efficiency, and fast heat dissipation. The inner space of the piston cylinder 26 is communicated with the inner bottom space of the heat conduction groove 7 through a first one-way pipe 19. A first one-way valve 21 is installed inside the first one-way pipe 19, and a second one-way valve 22 is installed inside the second one-way pipe 20. The one-way flow direction of the first one-way valve 21 is that the inner space of the piston cylinder 26 enters the inner part of the heat conduction groove 7 unidirectionally, and the one-way flow direction of the second one-way valve 22 is that the inner top space of the installation cavity 2 enters the inner bottom space of the piston cylinder 26 unidirectionally;

[0029] As an embodiment of the present invention, a refrigeration component 18 is installed on the front side of the housing 1. The refrigeration component 18 is made of a heat dissipation fan and a semiconductor refrigeration sheet, which is a prior art. The refrigeration end of the refrigeration component 18 extends into the heat conduction groove 7. A heat dissipation plate 11 is horizontally arranged in the inner bottom space of the installation cavity 2. The four sides of the heat dissipation plate 11 are fixedly connected to the four inner side walls of the installation cavity 2. A plurality of diversion holes 12 are opened on the heat dissipation plate 11;

[0030] As an embodiment of the present invention, an adjustment groove 16 is opened on the right side wall of the installation cavity 2, and an elastic film 17 is installed inside the adjustment groove 16;

[0031] As an embodiment of the present invention, it further includes a driving mechanism. The driving mechanism is used to drive the operation of the heat dissipation mechanism. The driving mechanism includes an installation frame 4 installed on the right side of the housing 1. A driving motor 5 is installed on the installation frame 4. The output shaft of the driving motor 5 extends into the transmission cavity 3. A connecting bar 23 is fixedly connected to the inner top of the transmission cavity 3. The output shaft of the driving motor 5 penetrates through the connecting bar 23 and is rotatably connected through a bearing. The output shaft of the driving motor 5 is fixedly connected to a rotating disk 25. The upper end of the piston block 28 is rotatably connected to a connecting rod 27, and the other end of the connecting rod 27 is rotatably connected to the eccentric part of the rotating disk 25;

[0032] As an embodiment of the present invention, it further includes a stirring mechanism. The stirring mechanism is used to improve the heat dissipation effect of the heat dissipation mechanism. The stirring mechanism includes a rotating rod 8 rotatably connected to the inner bottom of the heat conduction groove 7. A plurality of stirring meshes 10 are fixedly connected to the outer side of the rotating rod 8. The lower end of the rotating rod 8 extends into the transmission cavity 3. The output shaft of the driving motor 5 is fixedly connected to a first bevel gear 24, and the lower end of the rotating rod 8 is fixedly connected to a second bevel gear 9. The first bevel gear 24 meshes with the second bevel gear 9.

[0033] In the present invention, during use, by starting the drive motor 5, the rotating disk 25 can be driven to rotate. The rotation of the rotating disk 25 will drive the piston block 28 to move up and down through the connecting rod 27. The up and down movement of the piston block 28 will cooperate with the first one-way valve 21 and the second one-way valve 22 to generate a unidirectional circulating air flow in the top of the installation cavity 2, the bottom space of the piston cylinder 26, the heat conduction groove 7, the bottom of the installation cavity 2. During this process, the refrigeration component 18 can also be started. After the refrigeration component 18 is started, it will cool the in-place heat conduction oil. In this way, when the circulating gas passes through the heat conduction oil, the circulating air flow can be cooled through heat transfer, so as to achieve the purpose of overall heat dissipation.

[0034] In addition, during this process, after the gas is discharged from the first one-way pipe 19 and enters the heat conduction oil, the whole body moves upward in the form of bubbles, which will promote the movement of the heat conduction oil liquid and improve the uniformity of temperature reduction, making the overall heat dissipation effect better.

[0035] In addition, the start of the drive motor 5 will also drive the rotating rod 8 to rotate through the transmission of the first bevel gear 24 and the second bevel gear 9. The rotation of the rotating rod 8 will drive the stirring net 10 to rotate. The rotation of the stirring net 10 will further promote the movement of the oil liquid, and at the same time break the upper bubbles into smaller bubbles, increasing the contact area with the heat conduction oil and making the heat transfer effect better, thus making the heat dissipation effect better. It should be noted that the above heat dissipation process is internal circulation heat dissipation. On the basis of ensuring the heat dissipation effect, it effectively avoids the introduction of external air, ensures continuous heat dissipation, and at the same time ensures the service life of internal electrical components.

[0036] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A digital power meter for power design, characterized in that: include: A housing (1), wherein a mounting cavity (2) and a transmission cavity (3) are arranged in the housing (1), the rear side of the transmission cavity (3) is communicated with the outside, an instrument body (13) is arranged in the mounting cavity (2), both sides of the instrument body (13) are fixedly connected with mounting plates (14), and the two mounting plates (14) are fixedly connected to the rear inner wall of the mounting cavity (2) by a plurality of mounting screws (15); A heat dissipation mechanism, the heat dissipation mechanism comprising a piston cylinder (26) fixedly connected to the inner bottom of a transmission chamber (3), a piston block (28) being arranged in the piston cylinder (26) and being able to slide up and down, the inner bottom space of the piston cylinder (26) being connected to the inner top space of the installation chamber (2) via a second one-way tube (20), a temperature conducting groove (7) being provided in the inner bottom of the installation chamber (2), the temperature conducting groove (7) being filled with temperature conducting oil, the inner space of the piston cylinder (26) being connected to the inner bottom space of the temperature conducting groove (7) via a first one-way tube (19), a first one-way valve (21) being arranged in the interior of the first one-way tube (19), and a second one-way valve (22) being arranged in the interior of the second one-way tube (20); A driving mechanism, the driving mechanism is used to drive the operation of the heat dissipation mechanism; A stirring mechanism is used to improve the heat dissipation effect of the heat dissipation mechanism.

2. A digital power meter for power design according to claim 1, characterized in that: A sealing door (29) is installed on the front side of the housing (1), and the sealing door (29) cooperates with the installation cavity (2).

3. A digital power meter for power design according to claim 1, characterized in that: The front side of the housing (1) is provided with a liquid discharge port (30), a sealing plug (31) is installed inside the liquid discharge port (30), and the liquid discharge port (30) cooperates with the temperature conduction groove (7).

4. A digital power meter for power design according to claim 1, characterized in that: An adjustment groove (16) is provided on the right side wall of the installation cavity (2), and an elastic film (17) is installed inside the adjustment groove (16).

5. A digital power meter for power design according to claim 1, characterized in that: The driving mechanism comprises a mounting frame (4) mounted on the right side of the housing (1), a driving motor (5) being mounted on the mounting frame (4), an output shaft of the driving motor (5) extending into the interior of the transmission chamber (3), a connecting strip (23) being fixedly connected to the inner top of the transmission chamber (3), the output shaft of the driving motor (5) passing through the connecting strip (23) and being rotatably connected via a bearing, the output shaft of the driving motor (5) being fixedly connected to a rotating disk (25), the upper end of the piston block (28) being rotatably connected to a connecting rod (27), the other end of the connecting rod (27) being rotatably connected to an eccentric portion of the rotating disk (25).

6. A digital power meter for power design according to claim 1, characterized in that: The one-way flow direction of the first one-way valve (21) is from the internal space of the piston cylinder (26) to the interior of the temperature conducting groove (7), and the one-way flow direction of the second one-way valve (22) is from the top space in the installation cavity (2) to the bottom space in the piston cylinder (26).

7. A digital power meter for power design according to claim 1, characterized in that: A refrigeration component (18) is installed on the front side of the shell (1), and the refrigeration end of the refrigeration component (18) extends to the inside of the temperature conduction groove (7). A heat sink (11) is horizontally arranged in the inner bottom space of the installation cavity (2). The four sides of the heat sink (11) are fixedly connected to the four inner walls of the installation cavity (2), and a plurality of diversion holes (12) are opened on the heat sink (11).

8. A digital power meter for power design according to claim 5, characterized in that: The stirring mechanism comprises a rotating rod (8) rotatably connected to the bottom of the temperature conducting groove (7); a plurality of stirring nets (10) are fixedly connected to the outer side of the rotating rod (8); the lower end of the rotating rod (8) extends into the interior of the transmission cavity (3); the output shaft of the driving motor (5) is fixedly connected to a first bevel gear (24); the lower end of the rotating rod (8) is fixedly connected to a second bevel gear (9); the first bevel gear (24) is meshed with the second bevel gear (9).

Images