Guide rail type intelligent direct current metering device

Abstract

The utility model discloses a guide rail type intelligent direct current metering device, which comprises a shell, a power supply input module, a power supply output module, a relay and a metering module, the power input module comprises a positive terminal and a negative terminal which are arranged in the shell; the power output module comprises a positive wire holder and a negative wire holder which are arranged in the shell; the relay is provided with an input end and an output end, the negative terminal is connected with the input end of the relay through a first connecting piece, the output end of the relay is connected with the negative wire holder, the positive terminal is directly connected with the positive wire holder through a second connecting piece, and the metering module is electrically connected with the negative terminal, so that the negative terminal is used as a reference ground to obtain an electric energy signal. According to the guide rail type intelligent direct-current metering device, the metering module is directly connected with the negative electrode, so that the stability of a reference signal is prevented from being influenced when the relay is disconnected, and accurate metering and flexible control of direct-current electric energy are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, and particularly relates to a rail-mounted intelligent DC metering device. Background Art

[0002] With the wide application of DC power supplies in fields such as communication, new energy vehicles, and industrial control, the demand for accurate metering and effective control of DC electrical energy is increasing day by day. Early DC metering and control devices had relatively simple functions and low accuracy, and could not meet the requirements of complex application scenarios. In recent years, with the continuous progress of electronic technology, some DC metering and control modules with higher integration levels have emerged, but there is still room for improvement in terms of size, performance, reliability, and cost.

[0003] The existing DC metering modules need to be improved in terms of accuracy and stability, and it is difficult to meet the diverse load control requirements. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect of poor connection stability of the DC metering module in the prior art, so as to provide a rail-mounted intelligent DC metering device.

[0005] To solve the above technical problem, the technical solution of the utility model is as follows:

[0006] A rail-mounted intelligent DC metering device, comprising: a housing, a power input module, a power output module, a relay, and a metering module; the power input module includes a positive terminal and a negative terminal provided in the housing; the power output module includes a positive terminal block and a negative terminal block both provided in the housing; the relay has an input end and an output end, the negative terminal is connected to the input end through a first connecting piece, and the output end is connected to the negative terminal block; the positive terminal is connected to the positive terminal block through a second connecting piece; the metering module is provided in the housing, and the metering module is connected to the negative terminal to be adapted to measure DC current, voltage, and electrical energy.

[0007] According to some embodiments of the utility model, the rail-mounted intelligent DC metering device further includes a fuse provided in the housing, one end of the fuse is connected to the input end, and the other end is between the negative terminal.

[0008] According to some embodiments of the utility model, the housing includes an upper housing and a lower housing, the upper housing is provided with an upper layer cavity, the lower housing is provided with a lower layer cavity, the upper layer cavity and the lower layer cavity are communicated, the power output module, the relay, and the power input module are sequentially arranged in the lower layer cavity from left to right, the metering module is arranged in the upper layer cavity, and part of it extends to the lower layer cavity to be connected to the power input module.

[0009] According to some embodiments of the present utility model, the metering module includes a metering chip and signal terminals connected to each other. The metering chip is connected to the negative terminal. One side of the housing is provided with a telescopic hole. The signal terminals have a working state and a standby state. In the working state, one end of the signal terminal slides horizontally to pass through the telescopic hole and is connected to an external module; in the standby state, the signal terminal is located inside the housing.

[0010] According to some embodiments of the present utility model, the signal terminals include a signal female seat and a signal male seat. The signal female seat is connected to the signal male seat through the metering chip. When the signal terminals are in the working state, one end of the signal male seat can slide horizontally so that one end thereof is adapted to pass through the telescopic hole.

[0011] According to some embodiments of the present utility model, the signal female seat is electrically welded to the metering chip. The signal male seat is connected to the metering chip through a flexible cable. Data signals are transmitted between the signal female seat and the signal male seat through the metering chip.

[0012] According to some embodiments of the present utility model, the metering module further includes a connection sliding assembly located in the lower cavity. The other end of the signal male seat is connected to the connection sliding assembly. The connection sliding assembly drives the signal male seat to slide horizontally, so as to push one end of the signal male seat to extend outside the housing to be connected to an external module.

[0013] According to some embodiments of the present utility model, the connection sliding assembly includes a connection block and a guiding slider connected to each other. The other end of the signal male seat is fixedly welded to the connection block. A guiding hole is provided on the upper end surface of the lower housing. The guiding length of the guiding hole is arranged in the horizontal direction. The guiding slider passes through the guiding hole and can slide along the length direction of the guiding hole, so as to drive the connection block to drive the signal male seat to slide horizontally.

[0014] According to some embodiments of the present utility model, the connection sliding assembly further includes a pushing block. A guiding groove is provided on the upper end surface of the lower housing. The length direction of the guiding groove is arranged in the horizontal direction. The pushing block is fixedly connected to the guiding slider. The pushing block slides along the length direction of the guiding groove to drive the guiding slider to slide.

[0015] According to some embodiments of the present utility model, an operation and maintenance port is provided on the lower end surface of the housing. The fuse is disposed opposite to the operation and maintenance port. A cover plate is provided on the operation and maintenance port.

[0016] The technical solution of the present utility model has the following advantages:

[0017] The rail-mounted intelligent DC metering device provided by the present utility model has a negative terminal connected to the input end of a relay through a first connecting piece, the output end of the relay is connected to a negative terminal block, the positive terminal is directly connected to a positive terminal block through a second connecting piece, and the metering module is electrically connected to the negative terminal. Thus, taking the negative electrode as the reference ground, the electrical energy signal is obtained. By directly connecting the metering module to the negative electrode, the rail-mounted intelligent DC metering device avoids affecting the stability of the reference signal when the relay is disconnected, ensuring the accurate metering and flexible control of DC electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the internal module layout diagram of the rail-mounted intelligent DC metering device provided in some embodiments of the present utility model;

[0020] Figure 2 It is the structural schematic diagram of the rail-mounted intelligent DC metering device with signal terminals in the working state provided in some embodiments of the present utility model;

[0021] Figure 3 It is the structural schematic diagram of the rail-mounted intelligent DC metering device with signal terminals in the standby state provided in some embodiments of the present utility model;

[0022] Figure 4 It is the structural schematic diagram of the metering module provided in some embodiments of the present utility model;

[0023] Figure 5 It is the fitting installation schematic diagram of the guiding hole and the guiding slider provided in some embodiments of the present utility model;

[0024] Figure 6 It is the fitting installation schematic diagram of the push block and the guiding groove provided in some embodiments of the present utility model;

[0025] Figure 7 It is the installation schematic diagram of the cover plate covering the operation and maintenance port provided in some embodiments of the present utility model.

[0026] Description of the reference numerals: 1. housing; 11. telescopic hole; 12. guiding hole; 13. guiding groove; 14. operation and maintenance port; 2. power output module; 21. negative terminal block; 22. positive terminal block; 3. power input module; 31. negative terminal; 32. positive terminal; 4. relay; 5. metering module; 51. metering chip; 52. signal terminal; 53. connecting sliding assembly; 521. signal female socket; 522. signal male socket; 531. connecting block; 532. guiding slider; 533. pushing block; 6. fuse; 7. first connecting piece; 8. second connecting piece; 9. cover plate. Detailed implementation manners

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" 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 internal connection of two elements. 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 situations.

[0030] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Refer to Figure 1As shown, in some embodiments of the present utility model, a rail-type intelligent DC metering device is provided, including: a housing 1, a power input module 3, a power output module 2, a relay 4, and a metering module 5; the power input module 3 includes a positive terminal 32 and a negative terminal 31 disposed inside the housing 1; the power output module 2 includes a positive terminal block 22 and a negative terminal block 21 both disposed inside the housing 1; the relay 4 has an input end and an output end, the negative terminal 31 is connected to the input end through a first connecting piece 7, and the output end is connected to the negative terminal block 21; the positive terminal 32 is connected to the positive terminal block 22 through a second connecting piece 8; the metering module 5 is disposed inside the housing 1, and the metering module 5 is connected to the negative terminal 31 to be adapted to measure DC current, voltage, and electric energy.

[0032] Specifically, the negative terminal 31 is connected to the input end of the relay 4 through the first connecting piece 7, the output end of the relay 4 is connected to the negative terminal block 21, the positive terminal 32 is directly connected to the positive terminal block 22 through the second connecting piece 8, and the metering module 5 is electrically connected to the negative terminal 31, so as to use the negative pole as the reference ground to obtain an electric energy signal. By directly connecting the metering module 5 to the negative pole, the rail-type intelligent DC metering device avoids affecting the stability of the reference signal when the relay 4 is disconnected, ensuring the accurate metering and flexible control of DC electric energy.

[0033] It can be understood that in the prior art, the metering module 5 is connected to the negative pole through the relay 4. If the negative pole is still used as the reference ground, when the relay 4 is disconnected, if the load end is floating, both ends of the metering module 5 are in a floating state relative to the reference ground, which easily causes the metering signal to fly away; if the load end is connected with a load, at this time, the metering module 5 is almost at the same potential as the positive pole, which may damage the metering chip 51. Then only one end of the metering module 5 can be used as the reference ground. When the relay 4 is disconnected, the reference ground will be in a floating state or at the same potential as the positive pole; when the relay 4 is closed, the reference ground is at the same potential as the negative pole, resulting in unstable reference ground potential.

[0034] In the present utility model, by directly connecting the metering module 5 to the negative terminal 31 through a copper bar, the stable connection of the reference potential is ensured, and the accuracy of DC electric energy metering is improved.

[0035] Refer to Figure 1 As shown, in some embodiments of the present utility model, the rail-type intelligent DC metering device further includes a fuse 6 disposed inside the housing 1. One end of the fuse 6 is connected to the input end, and the other end is between the negative terminal 31.

[0036] Specifically, the fuse 6, as a current protection device, is used to protect the safe operation of the circuit, prevent overload current, short-circuit current, and limit the fault current, thereby avoiding safety accidents such as equipment damage or fire.

[0037] One end of the fuse 6 is connected to the input end of the relay 4, and the other end is connected to the negative terminal 31. When the current in the circuit exceeds the rated current of the fuse 6, the fuse wire in the fuse 6 will melt, cutting off the circuit to prevent the equipment from being damaged due to overload.

[0038] When a short circuit occurs in the circuit, a short circuit means that the current flows in a path outside the normal path, causing a significant reduction in the circuit impedance and a sharp increase in the current. The fuse 6 can quickly melt to prevent high current from damaging the equipment or causing a fire.

[0039] When a fault occurs in the circuit, the fuse 6 can limit the amplitude and duration of the fault current to protect the equipment from damage.

[0040] After the fuse 6 melts, the faulty circuit will be isolated from other circuits to prevent the fault from spreading to the entire electrical system.

[0041] Refer to Figures 1 to 3 As shown, in some embodiments of the present invention, the housing 1 includes an upper housing 1 and a lower housing 1. The upper housing 1 is provided with an upper layer cavity, and the lower housing 1 is provided with a lower layer cavity. The upper layer cavity and the lower layer cavity are communicated. The power output module 2, the relay 4, and the power input module 3 are sequentially arranged in the lower layer cavity from left to right. The metering module 5 is arranged in the upper layer cavity and partially extends to the lower layer cavity to be connected with the power input module 3.

[0042] Specifically, the power output module 2, the relay 4, and the power input module 3 are sequentially arranged in the lower layer cavity from left to right. The metering module 5 is arranged in the upper layer cavity and partially extends to the lower layer cavity to be connected with the power input module 3, thereby reducing the line connection between the modules and improving the integration degree.

[0043] Refer to Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the metering module 5 includes a metering chip 51 and a signal terminal 52 connected to each other. The metering chip 51 is connected to the negative terminal 31. One side of the housing 1 is provided with a telescopic hole 11. The signal terminal 52 has a working state and a standby state. In the working state, one end of the signal terminal 52 slides horizontally to pass through the telescopic hole 11 to be connected with an external module; in the standby state, the signal terminal 52 is located inside the housing 1.

[0044] It can be understood that the left - right indication direction is the horizontal direction.

[0045] Specifically, the signal terminal 52 is of a telescopic design. In the working state, one end of the signal terminal 52 slides horizontally to pass through the telescopic hole 11 to be connected with an external module. In the standby state, the signal terminal 52 contracts into the interior of the housing 1, thereby facilitating the disassembly, assembly, and storage of the module.

[0046] Refer to Figure 4As shown, in some embodiments of the present utility model, the signal terminal 52 includes a signal female socket 521 and a signal male socket 522. The signal female socket 521 is connected to the signal male socket 522 through a metering chip 51. When the signal terminal 52 is in the working state, one end of the signal male socket 522 can slide horizontally so that one end thereof is adapted to pass through the telescopic hole 11.

[0047] In some embodiments of the present utility model, the signal female socket 521 is electrically welded to the metering chip 51, the signal male socket 522 is connected to the metering chip 51 through a flexible cable, and data signals are transmitted between the signal female socket 521 and the signal male socket 522 through the metering chip 51.

[0048] Specifically, in electronic and communication systems, the functions of the signal male socket 522 and the signal female socket 521 are to enhance the safety of the device or ensure the normal operation of the device. The signal female socket 521 and the signal male socket 522 are connected through the metering chip 51, and signal transmission is achieved through the metering chip 51. The signal female socket 521 and the metering chip 51 are fixed by electrical welding, and the signal male socket 522 is connected to the metering chip 51 through a flexible cable, thereby realizing signal transmission.

[0049] In some embodiments of the present utility model, the metering module 5 further includes a connection sliding assembly 53 located in the lower cavity. The other end of the signal male socket 522 is connected to the connection sliding assembly 53, and the connection sliding assembly 53 drives the signal male socket 522 to slide horizontally, so as to push one end of the signal male socket 522 to extend outside the housing 1 to be connected to an external module.

[0050] Specifically, the function of the flexible cable is to be used for data transmission cables between moving parts and the main board, between PCB boards, and in miniaturized electrical equipment. The signal male socket 522 is connected to the metering chip 51 through a flexible cable to achieve signal transmission. The flexible cable can arbitrarily select the number of wires and the spacing, making the connection more convenient, reducing the volume of electronic products, while also reducing production costs and improving production efficiency. Therefore, the flexible cable has high flexibility. When the connection sliding assembly 53 drives the signal male socket 522 to slide horizontally, the setting of the flexible cable can ensure the stability of the connection to ensure the stability of data signal transmission.

[0051] Refer to Figure 4 and Figure 5 As shown, in some embodiments of the present utility model, the connection sliding assembly 53 includes a connected connection block 531 and a guiding slider 532. The other end of the signal male socket 522 is fixedly welded to the connection block 531. A guiding hole 12 is provided on the upper end surface of the lower housing 1. The guiding length of the guiding hole 12 is set in the horizontal direction. The guiding slider 532 is inserted into the guiding hole 12 and can slide along the length direction of the guiding hole 12 to push the connection block 531 to drive the signal male socket 522 to slide horizontally.

[0052] Specifically, the guiding slider 532 slides within the guiding hole 12, thereby pushing the connecting block 531 to drive the signal male socket 522 to slide horizontally, so that one end of the signal male socket 522 passes through the telescopic hole 11 and extends outside the housing 1 to achieve the male socket state, or one end of the signal male socket 522 is located inside the housing 1 to achieve the standby state.

[0053] Refer to Figure 4 and Figure 6 As shown in some embodiments of the present invention, the connecting and sliding assembly 53 further includes a pushing block 533. A guiding groove 13 is provided on the upper end surface of the lower housing 1. The length direction of the guiding groove 13 is arranged along the horizontal direction. The pushing block 533 is fixedly connected to the guiding slider 532, and the pushing block 533 slides along the length direction of the guiding groove 13 to drive the guiding slider 532 to slide.

[0054] Specifically, the length direction of the guiding groove 13 is consistent with the horizontal direction. The pushing block 533 and the guiding slider 532 are fixedly connected by glue. The upper surface of the pushing block 533 is provided with anti-slip lines to increase the friction force and facilitate the pushing of the pushing block 533.

[0055] Refer to Figure 7 As shown, in some embodiments of the present invention, an operation and maintenance port 14 is provided on the lower end surface of the housing 1. The fuse 6 is disposed opposite to the operation and maintenance port 14, and a cover plate 9 is provided on the operation and maintenance port 14.

[0056] Specifically, the operation and maintenance port 14 is provided on the lower end surface of the housing 1, a cover plate 9 is provided on the operation and maintenance port 14, and the fuse 6 is disposed opposite to the operation and maintenance port 14 to facilitate the replacement of the fuse 6. The provision of the cover plate 9 prevents dust from entering the interior of the housing 1 and extends the service life of each module.

[0057] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A guide-rail type intelligent DC metering device, characterized in that, Comprising: A housing (1); A power input module (3), including a positive terminal (32) and a negative terminal (31) disposed within the housing (1); A power output module (2), including a positive terminal block (22) and a negative terminal block (21) both disposed within the housing (1); A relay (4), the relay (4) having an input end and an output end, the negative terminal (31) being connected to the input end through a first connecting piece (7), and the output end being connected to the negative terminal block (21); the positive terminal (32) being connected to the positive terminal block (22) through a second connecting piece (8); A metering module (5), disposed within the housing (1), the metering module (5) being connected to the negative terminal (31) to be adapted to measure direct current, voltage, and electric energy.

2. The rail-mounted intelligent DC metering device according to claim 1, wherein It further includes a fuse (6) disposed within the housing (1), one end of the fuse (6) being connected to the input end and the other end being between the input end and the negative terminal (31).

3. The rail-mounted intelligent DC metering device according to claim 1 or 2, characterized in that, The housing (1) includes an upper housing (1) and a lower housing (1), the upper housing (1) having an upper layer cavity, the lower housing (1) having a lower layer cavity, the upper layer cavity and the lower layer cavity being in communication, the power output module (2), the relay (4), and the power input module (3) being sequentially disposed within the lower layer cavity from left to right, the metering module (5) being disposed within the upper layer cavity and partially extending into the lower layer cavity to be connected to the power input module (3).

4. The rail-mounted intelligent DC metering device according to claim 3, characterized in that, The metering module (5) includes a metering chip (51) and a signal terminal (52) connected to each other, the metering chip (51) being connected to the negative terminal (31), and one side of the housing (1) being provided with a telescopic hole (11), the signal terminal (52) having a working state and a standby state. In the working state, one end of the signal terminal (52) slides horizontally to pass through the telescopic hole (11) to be connected to an external module; in the standby state, the signal terminal (52) is located within the housing (1).

5. The rail-mounted intelligent DC metering device according to claim 4, wherein The signal terminal (52) includes a signal female seat (521) and a signal male seat (522), the signal female seat (521) being connected to the signal male seat (522) through the metering chip (51). When the signal terminal (52) is in the working state, one end of the signal male seat (522) can slide horizontally so that one end thereof is adapted to pass through the telescopic hole (11).

6. The rail-mounted intelligent DC metering device according to claim 5, characterized in that, The signal female seat (521) is electrically welded to the metering chip (51), the signal male seat (522) is connected to the metering chip (51) through a flexible cable, and data signals are transmitted between the signal female seat (521) and the signal male seat (522) through the metering chip (51).

7. The rail-mounted intelligent DC metering device according to claim 6, characterized in that, The metering module (5) further includes a connection sliding component (53) located in the lower cavity. The other end of the signal male socket (522) is connected to the connection sliding component (53). The connection sliding component (53) drives the signal male socket (522) to slide horizontally, so as to push one end of the signal male socket (522) to extend outside the housing (1) for connection with an external module.

8. The rail-mounted intelligent DC metering device according to claim 7, characterized in that, The connection sliding component (53) includes a connected connection block (531) and a guiding slider (532). The other end of the signal male socket (522) is fixedly welded to the connection block (531). A guiding hole (12) is provided on the upper end face of the lower housing (1). The guiding length of the guiding hole (12) is arranged in the horizontal direction. The guiding slider (532) is inserted into the guiding hole (12) and can slide along the length direction of the guiding hole (12) to push the connection block (531) to drive the signal male socket (522) to slide horizontally.

9. The rail-mounted intelligent DC metering device according to claim 8, characterized in that, The connection sliding component (53) further includes a push block (533). A guiding groove (13) is provided on the upper end face of the lower housing (1). The length direction of the guiding groove (13) is arranged in the horizontal direction. The push block (533) is fixedly connected to the guiding slider (532). The push block (533) slides along the length direction of the guiding groove (13) to drive the guiding slider (532) to slide.

10. The rail-mounted intelligent DC metering device according to claim 2, characterized in that, An operation and maintenance port (14) is provided on the lower end face of the housing (1). The fuse (6) is arranged opposite to the operation and maintenance port (14). A cover plate (9) is provided on the operation and maintenance port (14).

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