Digital display circuit breaker

Abstract

The utility model discloses a digital display circuit breaker, which belongs to the field of digital display circuit breakers, and is characterized in that the upper part of the front end of a first circuit breaker shell is provided with a first adding shell, the upper part of the front end of a second circuit breaker shell is provided with a second adding shell, the first adding shell and the second adding shell form a complete adding shell, and the front end of the adding shell is provided with an adding cavity; a printed circuit board is mounted in the loading cavity; the side walls of the first adding shell and the second adding shell are provided with heat dissipation fins, and the printed circuit board is connected with the heat dissipation fins through heat conduction pipes. And the added shell design provides an installation cavity, so that the stability of the circuit breaker is enhanced. The first mounting shell and the second mounting shell are connected in a buckling and fixing mode, firmness is ensured, and the structural strength and stability are improved. The digital display mechanism is composed of a display frame, a display screen and keys, so that a user can check and control the state of the circuit breaker conveniently. And the display screen displays parameters in real time, so that the monitoring performance and the operation convenience are improved. The key design is convenient to set and adjust, and the controllability of the equipment is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of digital display circuit breaker, especially a digital display circuit breaker. BACKGROUND

[0002] The digital display circuit breaker is a high-tech electrical appliance that combines circuit breakers and digital display technology. The working principle of the digital display circuit breaker is as follows: measuring electrical parameters: measuring the current of the electrical appliance through a current transformer, and calculating the power and energy of the electrical appliance through parameters such as voltage and current. Determining the state of the electrical appliance: determining the working state of the electrical appliance through a control circuit, such as whether the current is too large or the voltage is too low. Executing protection measures: when the electrical appliance is determined to have an abnormal condition, the digital display circuit breaker will automatically execute protection measures to ensure the safe operation of the electrical appliance.

[0003] In the current practical application of the digital display circuit breaker, the display screen is usually fixed on the circuit breaker housing. This fixing method brings additional trouble during maintenance. Since the display screen is closely connected to the circuit breaker housing, maintenance personnel often need more time and steps to operate during maintenance or inspection, which not only increases the difficulty of maintenance, but also may prolong the downtime of the equipment and affect the production efficiency.

[0004] This design lacks flexibility and is difficult to meet the diverse needs of the field environment. In some application scenarios, the digital display function may not be needed, or the position and method of digital display may not conform to the actual layout and operation habits of the field. However, since the display screen is fixed on the circuit breaker housing, users cannot adjust or replace it according to actual needs, which to some extent limits the application range and flexibility of the circuit breaker. SUMMARY

[0005] The main purpose of the utility model is to provide a digital display circuit breaker that can effectively solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A digital display circuit breaker, comprising a first circuit breaker housing, a second circuit breaker housing, mounting bolts, and a switch lever, wherein the first circuit breaker housing and the second circuit breaker housing are fixed by the mounting bolts to form a complete circuit breaker housing, and the switch lever is installed at the lower part of the front end of the circuit breaker housing.

[0008] A first additional shell is installed on the upper part of the front end of the first circuit breaker housing, and a second additional shell is installed on the upper part of the front end of the second circuit breaker housing. The first additional shell and the second additional shell form a complete additional housing, and an additional cavity is formed at the front end of the additional housing. A printed circuit board is installed in the additional cavity.

[0009] The side wall of the first and second add-on shells is provided with a heat dissipation fin, the printed circuit board is connected with the heat dissipation fin through a heat conduction pipe, the first and second add-on shells are connected with a display frame through buckling, and the front end of the display frame is provided with a display screen and a key, so that the digital display control is realized through the display screen and the key.

[0010] The inner end of the first and second add-on shells is provided with a plurality of through holes, the plurality of through holes are equidistantly distributed on the first and second add-on shells, the through holes are opposite to the threaded holes on the first and second circuit breaker housings, and the first and second add-on shells are fixed on the first and second circuit breaker housings by inserting bolts into the through holes.

[0011] The connecting position of the first and second circuit breaker housings is provided with a sealing strip, the first circuit breaker housing is in communication with the first add-on shell through the through hole and the circular hole, and the connecting position of the first add-on shell and the first circuit breaker housing is provided with a sealing strip.

[0012] The second circuit breaker housing is in communication with the second add-on shell through the through hole and the circular hole, and the connecting position of the second add-on shell and the second circuit breaker housing is provided with a sealing strip.

[0013] The first and second add-on shells are welded with the heat dissipation fin, the inner end of the heat dissipation fin is provided with a heat conduction column, the heat conduction column extends into the add-on cavity, and the edge of the heat dissipation fin is designed in an arc shape.

[0014] The connecting position of the buckle and the first and second add-on shells is provided with a sealing strip, the buckle is designed in an integral manner with the display frame, and the connecting position of the display frame and the display screen and the key is provided with a sealing strip.

[0015] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0016] The design of the add-on shell not only provides an add-on cavity for mounting a printed circuit board, but also enhances the overall stability of the circuit breaker through the structure. The first and second add-on shells are connected through buckling, and the fixing mode of the through hole and the bolt ensures the firm connection between the add-on shell and the circuit breaker shell, thereby improving the structural strength and stability of the circuit breaker.

[0017] The combination of the display frame, the display screen and the key of the digital display mechanism enables the user to intuitively view the state of the circuit breaker and control it. The display screen can display the current, voltage and other parameters of the circuit breaker in real time, improving the monitorability and operation convenience of the equipment. At the same time, the key design enables the user to conveniently set and adjust, enhancing the controllability of the equipment.

[0018] The heat dissipation mechanism realizes effective dissipation of heat generated by the printed circuit board through the synergistic effect of the heat dissipation fins, heat conduction pipes and heat conduction columns. The arc-shaped design of the heat dissipation fins and sufficient contact with air improve the heat dissipation efficiency, ensuring the stable operation of the equipment in a high-temperature environment. At the same time, the sealing strip effectively prevents the intrusion of dust and moisture, protecting the internal electronic components from damage and prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a whole structure display view of the utility model;

[0021] Figure 3 It is a whole structure side view of the utility model;

[0022] Figure 4 It is an installation shell, heat dissipation fin, display frame, buckle, display screen and key exploded view of the utility model.

[0023] In the figure: 1, first circuit breaker shell; 2, second circuit breaker shell; 3, mounting bolt; 4, switch lever; 5, first installation shell; 6, second installation shell; 7, installation cavity; 8, through hole; 9, heat dissipation fin; 10, display frame; 11, buckle; 12, display screen; 13, key. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following will further describe the utility model in combination with specific embodiments.

[0025] As shown in Figure 1 - Figure 4 A digital display circuit breaker, which is composed of multiple parts, including a first circuit breaker shell 1, a second circuit breaker shell 2, a mounting bolt 3 and a switch lever 4. Among them, the first circuit breaker shell 1 and the second circuit breaker shell 2 form a complete circuit breaker shell structure through the fixing effect of the mounting bolt 3. And the switch lever 4 is installed at the lower front end position of the circuit breaker shell.

[0026] A first installation shell 5 is installed on the upper front end of the first circuit breaker shell 1, and similarly, a second installation shell 6 is also installed on the upper front end of the second circuit breaker shell 2. The two installation shells are combined together to form a complete installation shell structure. A installation cavity 7 is specially provided at the front end of the installation shell, and a printed circuit board is installed inside the installation cavity 7.

[0027] In addition, the side wall portions of the first and second extension shells 5 and 6 are designed with heat dissipation fins 9. The printed circuit board is connected to these heat dissipation fins 9 through heat conduction pipes to achieve good heat dissipation effect. The first and second extension shells 5 and 6 are connected together by means of buckles 11, and a display frame 10 is also fixed at the connection. The front end portion of the display frame 10 is provided with a display screen 12 and a button 13, and users can use these two components to realize digital display control of the circuit breaker.

[0028] At the inner end portions of the first and second extension shells 5 and 6, a plurality of through holes 8 are respectively provided. These through holes 8 are equidistantly distributed on the extension shell body, and they are just opposite to the screw holes on the first and second circuit breaker shell bodies 1 and 2. By inserting bolts into these through holes 8, the extension shell body can be fixed on the circuit breaker shell body.

[0029] In order to ensure the sealing performance, the connection portions of the first circuit breaker shell body 1 and the first extension shell 5, and the connection portions of the second circuit breaker shell body 2 and the second extension shell 6 are provided with sealing strips. These sealing strips can effectively prevent the intrusion of external substances, and ensure the cleanliness and dryness of the inside of the circuit breaker.

[0030] Similarly, the connection portions of the first extension shell 5 and the first circuit breaker shell body 1, and the connection portions of the second extension shell 6 and the second circuit breaker shell body 2 are also provided with sealing strips. The setting of these sealing strips further enhances the sealing performance between the parts of the circuit breaker shell body.

[0031] In terms of heat dissipation, the first and second extension shells 5 and 6 are fixed together with the heat dissipation fins 9 by welding. The inner end portions of the heat dissipation fins 9 are provided with heat conduction columns, which extend into the extension cavity 7, which helps to conduct the heat generated by the printed circuit board to the heat dissipation fins 9, thereby improving the heat dissipation efficiency. The edge portions of the heat dissipation fins 9 adopt an arc-shaped design, which can reduce the resistance generated by air flow, further improving the heat dissipation effect.

[0032] Finally, the connection portions of the buckle 11 and the first and second extension shells 5 and 6 are also provided with sealing strips to ensure the sealing performance of the connection portions. The buckle 11 is designed in one piece with the display frame 10, which simplifies the assembly process, and the connection portions of the display frame 10 and the display screen 12 and the button 13 are also provided with sealing strips, which ensures the sealing performance of the control interface and prevents the intrusion of dust and moisture.

[0033] The first circuit breaker shell 1 and the second circuit breaker shell 2 are fixed together by mounting bolts 3 to form a complete circuit breaker shell structure. A switch lever 4 is installed at the lower part of the front end of the circuit breaker shell. A first additional shell 5 and a second additional shell 6 are installed at the upper part of the front end of the first circuit breaker shell 1 and the second circuit breaker shell 2 respectively. The first additional shell 5 and the second additional shell 6 are connected together by a buckle 11, and a display frame 10 is fixed at the connection. Heat dissipation fins 9 are designed on the side walls of the first additional shell 5 and the second additional shell 6. A printed circuit board is connected to the heat dissipation fins 9 through a heat conduction pipe to achieve good heat dissipation effect. The inner end part of the heat dissipation fins 9 is provided with a heat conduction column extending into the additional cavity 7. A plurality of through holes 8 are opened at the inner end part of the first additional shell 5 and the second additional shell 6. Screws are inserted into these through holes 8 and are opposite to the screw holes on the first circuit breaker shell 1 and the second circuit breaker shell 2 to fix the additional shell on the circuit breaker shell.

[0034] Sealing strips are arranged at the connection between the first circuit breaker shell 1 and the first additional shell 5, and the connection between the second circuit breaker shell 2 and the second additional shell 6 to prevent external substances from entering. Sealing strips are also arranged at the connection between the first additional shell 5 and the first circuit breaker shell 1, and the connection between the second additional shell 6 and the second circuit breaker shell 2. Sealing strips are arranged at the connection between the buckle 11 and the first additional shell 5 and the second additional shell 6 to ensure the sealing performance of the connection part. Sealing strips are also arranged at the connection between the display frame 10 and the display screen 12 and the keys 13 to ensure the sealing performance of the operation interface. The display screen 12 and the keys 13 are installed at the front end of the display frame 10. The user can check the state of the circuit breaker through the display screen 12 and perform digital display operation through the keys 13. After all the installation and sealing processes are completed, it is checked whether all the connections are firm to ensure that there is no looseness or air leakage. Tests are performed to ensure that the switch lever 4 of the circuit breaker operates flexibly, the display screen 12 displays accurately, and the keys 13 react sensitively.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A digital display circuit breaker comprising a first circuit breaker housing (1), a second circuit breaker housing (2), mounting bolts (3) and a switch lever (4), the first circuit breaker housing (1) and the second circuit breaker housing (2) are fixed by the mounting bolts (3) to form a complete circuit breaker housing, and the switch lever (4) is installed at the lower part of the front end of the circuit breaker housing, characterized in that: The first circuit breaker shell (1) is provided with a first additional shell (5) on the upper front end, and the second circuit breaker shell (2) is provided with a second additional shell (6) on the upper front end, and the first additional shell (5) and the second additional shell (6) form a complete additional shell body, and the front end of the additional shell body is provided with an additional cavity (7), and a printed circuit board is installed in the additional cavity (7); The side wall of the first additional shell (5) and the second additional shell (6) is provided with a heat dissipation fin (9), the printed circuit board is connected with the heat dissipation fin (9) through a heat conducting pipe, the first additional shell (5) and the second additional shell (6) are connected with a display frame (10) through a buckle (11), and the front end of the display frame (10) is provided with a display screen (12) and a key (13), and the display screen (12) and the key (13) are used for digital display control.

2. The digital circuit breaker according to claim 1, wherein: A plurality of through holes (8) are formed in the inner end of the first additional shell (5) and the second additional shell (6), the plurality of through holes (8) are equidistantly distributed on the first additional shell (5) and the second additional shell (6), the through holes (8) are opposite to the screw holes on the first circuit breaker shell (1) and the second circuit breaker shell (2), and the through holes (8) are fixed on the first circuit breaker shell (1) and the second circuit breaker shell (2) by using bolts.

3. The digital circuit breaker of claim 2, wherein: The connecting part of the first circuit breaker shell (1) and the second circuit breaker shell (2) is provided with a sealing strip, the first circuit breaker shell (1) and the first additional shell (5) are communicated through the through hole (8) and the circular hole, and the connecting part of the first additional shell (5) and the first circuit breaker shell (1) is provided with a sealing strip.

4. The digital circuit breaker of claim 3, wherein: The second circuit breaker shell (2) and the second additional shell (6) are communicated through the through hole (8) and the circular hole, and the connecting part of the second additional shell (6) and the second circuit breaker shell (2) is provided with a sealing strip.

5. The digital circuit breaker of claim 4, wherein: The first additional shell (5) and the second additional shell (6) are welded with the heat dissipation fin (9), the inner end of the heat dissipation fin (9) is provided with a heat conducting column, the heat conducting column extends into the additional cavity (7), and the edge of the heat dissipation fin (9) is designed in an arc shape.

6. The digital circuit breaker of claim 5, wherein: The connecting part of the buckle (11) and the first additional shell (5) and the second additional shell (6) is provided with a sealing strip, the buckle (11) is designed in an integral manner with the display frame (10), and the connecting part of the display frame (10) and the display screen (12) and the key (13) is provided with a sealing strip.

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