Circuit breaker service life detection device
By providing a circuit breaker life detection device including a driving unit, an installation unit and a test unit, the problem that traditional dynamic resistance test requires power outage and unclear results is solved, and a life detection without power outage and accurate arc contact replacement judgment is achieved.
Patent Information
- Application Number
- CN202410876169.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-15
AI Technical Summary
Traditional dynamic resistance tests require power outage and maintenance, which is inefficient, and there are no clear standards for determining whether the arc contact needs to be replaced, resulting in uncertainty in the user judging the device status.
A circuit breaker life detection device is provided, including a driving unit, a mounting unit and a testing unit, which fixes the circuit breaker by clamping components, and uses a current sensor and a closing controller for quick connection and detection, and calculates the equivalent number through an algorithm and displays it on an LCD display screen.
It realizes the life of the circuit breaker to be detected without power outage, reduces the inconvenience and inefficiency of the detection process, and determines whether the arc contact needs to be replaced through a clear number of equivalent times, improving the accuracy of users' judgment of the equipment status.
Smart Images
Figure CN119827966A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of circuit breaker detection, and in particular to a circuit breaker life detection device. Background Art
[0002] There are generally two ways to detect arc contacts of circuit breakers. One is to perform a dynamic resistance test during a power outage for maintenance, and the other is to detect and record the number of arc extinguishing times and fault current of the circuit breaker through an online detection device, and calculate the equivalent number through an algorithm. The dynamic resistance test requires a power outage for maintenance, and there is no clear standard for the test results to determine whether the arc contact needs to be replaced, and the online detection device has not yet been widely popularized. Summary of the invention
[0003] In view of the above problems existing in the existing circuit breaker life detection device, the present invention is proposed.
[0004] Therefore, the present invention provides a circuit breaker life detection device, the purpose of which is to solve the problem that traditional dynamic resistance tests require power outages for maintenance, which may cause inconvenience and low efficiency in actual operation. The results of dynamic resistance tests have no clear standards to determine whether the arc contacts need to be replaced, which may cause uncertainty for users when judging the status of the equipment.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: a driving unit, including a driving component, and a moving component arranged on the driving component;
[0006] The mounting unit comprises a clamping assembly disposed on the moving assembly;
[0007] The test unit includes a support assembly arranged on the driving assembly, a warning light arranged on the support assembly, and a display screen arranged on the support assembly.
[0008] As a preferred solution of the circuit breaker life detection device of the present invention, the driving assembly includes a sleeve, a motor arranged inside the sleeve, a rotating rod arranged at the output end of the motor, a gear arranged at the top of the rotating rod, a top shell arranged at the top of the gear, and a buffer pad arranged at the top of the top shell.
[0009] As a preferred solution of the circuit breaker life detection device of the present invention, the moving component includes a moving card bar, a moving block slidably arranged on the moving card bar, a base arranged between the moving blocks, a support plate arranged on the top of the base, and a Z-shaped tooth plate arranged on one side of the base, and the Z-shaped tooth plate is meshed and connected with the gear.
[0010] As a preferred solution of the circuit breaker life detection device of the present invention, the clamping assembly includes a main rod, and the main rod is arranged on the support plate, and a fixing block is arranged on the top of the main rod.
[0011] As a preferred solution of the circuit breaker life detection device of the present invention, an electric push rod is arranged on one side of the fixed block, and a linkage shaft is arranged on the outer diameter of the output end of the electric push rod.
[0012] As a preferred solution of the circuit breaker life detection device of the present invention, a main clamping block is arranged on one side of the main rod, a secondary clamping block is slidably arranged inside the main clamping block, and the secondary clamping block is slidably connected to the linkage shaft.
[0013] As a preferred solution of the circuit breaker life detection device of the present invention, a limit rod is arranged inside the main clamping block, and the limit rod is slidably connected to the auxiliary clamping block.
[0014] As a preferred solution of the circuit breaker life detection device of the present invention, a current sensor is arranged on the top of the auxiliary clamping block, a gate opening controller HQ and a gate closing controller TQ are arranged on the bottom of the current sensor, a transmission line is arranged on the other side of the current sensor, and the transmission line is electrically connected to the test unit.
[0015] As a preferred solution of the circuit breaker life detection device of the present invention, the support assembly includes a detection box body, a horizontal frame arranged on the detection box body, and a vertical frame arranged on the horizontal frame.
[0016] As a preferred solution of the circuit breaker life detection device of the present invention, a bottom plate is arranged on the top of the vertical frame.
[0017] The beneficial effects of the present invention are as follows: the circuit breaker is placed inside the clamping assembly, fixedly clamped, and the opening controller HQ and the closing controller TQ inside the clamping assembly are inserted into the circuit breaker wire connection for quick connection, data is collected through the current sensor, and data is transmitted through the transmission line. At the same time, the device is used as an independent module, and there is no need to disassemble the secondary wiring of the circuit breaker, and there is no need to consider access to the communication network. It only needs to pass the current sensor through the opening and closing control circuit and the protective CT secondary circuit. When it is detected that there is current passing through the control circuit, the CT side current measurement is turned on. When the current is a fault current, it is substituted into the algorithm to calculate the equivalent number of times, and it is displayed on the LCD display screen after accumulation. The normal load current is not recorded and calculated, and the equivalent number of times can be recorded during inspection. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 It is a schematic diagram of the overall structure of the circuit breaker life detection device of the present invention.
[0020] Figure 2 It is a schematic diagram of the internal structure of the circuit breaker life detection device of the present invention.
[0021] Figure 3 It is a schematic diagram of the structure of the driving component of the circuit breaker life detection device of the present invention.
[0022] Figure 4 The figure is a schematic diagram of the internal structure of the driving component of the circuit breaker life detection device of the present invention.
[0023] Figure 5 The circuit breaker life detection device of the present invention Figure 4 A is an enlarged structural diagram of FIG.
[0024] Figure 6 It is a schematic diagram of the working state structure of the circuit breaker life detection device of the present invention. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.
[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0029] Example 1
[0030] Reference Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides a circuit breaker life detection device, the device comprising: a driving unit 100, including a driving component 101, and a moving component 102 arranged on the driving component 101;
[0031] The installation unit 200 includes a clamping assembly 201 disposed on the moving assembly 102 .
[0032] Among them, the driving component 101 includes a sleeve 101a, a motor 101b arranged inside the sleeve 101a, a rotating rod 101c arranged at the output end of the motor 101b, a gear 101d arranged at the top of the rotating rod 101c, a top shell 101e rotatingly arranged on the top of the gear 101d, and a buffer pad 101f arranged on the top of the top shell 101e. The rotating rod 101c and the gear 101d are driven by the motor 101b so that they can be close to each other for fixed clamping.
[0033] Furthermore, the moving component 102 includes a moving card strip 102a, a moving block 102b slidably set on the moving card strip 102a, a base 102c set between the moving blocks 102b, a support plate 102d set on the top of the base 102c, and a Z-shaped tooth plate 102e set on one side of the base 102c, and the Z-shaped tooth plate 102e is meshed and connected with the gear 101d. The gear 101d is used to make the Z-shaped tooth plate 102e start to move so that the moving block 102b and the moving card strip 102a are close to the base 102c for clamping, and the driving can continuously adjust the clamping distance to reach a suitable size.
[0034] During use, when the circuit breaker is tested and fixed, the circuit breaker is placed inside the main clamping block 201f, and the bottom motor 101b drives the rotating rod 101c to rotate with the gear 101d, and the gear 101d drives the moving clamping strip 102a to move the moving block 102b closer along the moving clamping strip 102a, and the support plate 102d and the main rod 201a also move closer to fix the circuit breaker inside the main clamping block 201f, and complete the electrical connection with the circuit breaker during the clamping process.
[0035] Example 2
[0036] Reference Figure 3 - Figure 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the clamping assembly 201 includes a main rod 201a, and the main rod 201a is arranged on the support plate 102d, and a fixed block 201b is arranged on the top of the main rod 201a, and the fixing block 201b is used to stably support the entire clamp.
[0037] Furthermore, an electric push rod 201c is provided on one side of the fixed block 201b, and a linkage shaft 201e is provided on the outer diameter of the output end of the electric push rod 201c, which is fixed by the fixed block 201b on the main rod 201a. The linkage shaft 201e is moved by the electric push rod 201c and the switch of the circuit breaker can be detected.
[0038] Furthermore, a main clamping block 201f is provided on one side of the main rod 201a, and a secondary clamping block 201g is slidably provided inside the main clamping block 201f, and the secondary clamping block 201g is slidably connected to the linkage shaft 201e. The circuit breaker can be tightly clamped and fixed through the cooperation of the clamping block 201f and the secondary clamping block 201g.
[0039] Furthermore, a limiting rod 2011 is provided inside the main clamping block 201f, and the limiting rod 2011 is slidably connected to the auxiliary clamping block 201g, so that the main clamping block 201f and the auxiliary clamping block 201g are stabilized when sliding through the limiting rod 2011.
[0040] During use, when the circuit breaker is tested, the electric push rod 201c works to move the linkage shaft 201e so that the auxiliary clamping block 201g moves downward to fix the circuit breaker for secondary fixation. The circuit breaker is fixed while the electrical connection of the circuit breaker is also completed, so that the staff does not need to disassemble the secondary wiring of the circuit breaker or consider accessing the communication network. The circuit breaker can be tested only by the opening and closing control circuit, the protection CT secondary circuit and the current sensor.
[0041] The remaining structures are the same as those of Example 1.
[0042] Example 3
[0043] Reference Figure 1 - Figure 6, which is the third embodiment of the present invention, this embodiment proposes a circuit breaker life detection method based on the first and second embodiments: comprising: a test unit 300, comprising a support component 301 arranged on the driving component 101, a warning light 302 arranged on the support component 301, and a display screen 303 arranged on the support component 301, the warning light 302 can warn of the detection result, and the display screen 303 can display the detection result data.
[0044] Compared with Example 2, further, a current sensor 304 is arranged on the top of the auxiliary clamping block 201g, a trip controller HQ306 and a closing controller TQ307 are arranged on the bottom of the current sensor 304, a transmission line 305 is arranged on the other side of the current sensor 304, and the transmission line 305 is electrically connected to the test unit 300. The closing controller TQ307 and the trip controller HQ306 are quickly connected to the circuit breaker for detection by fixing the circuit breaker with the auxiliary clamping block 201g.
[0045] Among them, the support assembly 301 includes a detection box body 301a, a horizontal frame 301b arranged on the detection box body 301a, a vertical frame 301c arranged on the horizontal frame 301b, and a bottom plate 301d arranged on the top of the vertical frame 301c. The internal support of the equipment is performed by the horizontal frame 301b and the vertical frame 301c inside the detection box body 301a.
[0046] During use, when the circuit breaker is tested, the circuit breaker is placed inside the main clamping block 201f. The main clamping block 201f and the auxiliary clamping block 201g are combined to fix the circuit breaker. When the auxiliary clamping block 201g moves downward, the internal opening controller HQ306 and closing controller TQ307 are clamped into the wire connection of the circuit breaker for quick connection. The current sensor 304 on the top of the auxiliary clamping block 201g is used for detection and induction. 5 The collected data is transmitted to the support component 301 and displayed on the display screen 303. When the current is detected in the control loop inside the circuit breaker, the CT side current measurement is turned on. When the current is a fault current, the equivalent times are calculated by the algorithm and displayed on the LCD display screen 303 after accumulation. Normal load current is not recorded or calculated. The equivalent times can be recorded during inspection. When the equivalent times value reaches the warning state, an alarm can be issued, and then it is recommended to conduct a dynamic resistance test or directly replace the arc contact.
[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.
[0048] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.
[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A circuit breaker life detection device, characterized in that: include, A driving unit (100) comprises a driving component (101) and a moving component (102) arranged on the driving component (101); The mounting unit (200) comprises a clamping assembly (201) arranged on the moving assembly (102); The test unit (300) comprises a support component (301) arranged on the drive component (101), a warning light (302) arranged on the support component (301), and a display screen (303) arranged on the support component (301).
2. The circuit breaker life detection device according to claim 1, characterized in that: The driving assembly (101) comprises a sleeve (101a), a motor (101b) arranged inside the sleeve (101a), a rotating rod (101c) arranged at the output end of the motor (101b), a gear (101d) arranged at the top of the rotating rod (101c), a top shell (101e) rotatably arranged at the top of the gear (101d), and a buffer pad (101f) arranged at the top of the top shell (101e).
3. The circuit breaker life detection device according to claim 2, characterized in that: The moving assembly (102) comprises a moving card strip (102a), a moving block (102b) slidably arranged on the moving card strip (102a), a base (102c) arranged between the moving blocks (102b), a support plate (102d) arranged on the top of the base (102c), and a Z-shaped tooth plate (102e) arranged on one side of the base (102c), and the Z-shaped tooth plate (102e) is meshingly connected with the gear (101d).
4. The circuit breaker life detection device according to claim 3, characterized in that: The clamping assembly (201) comprises a main rod (201a), wherein the main rod (201a) is arranged on the support plate (102d), and a fixing block (201b) is arranged on the top of the main rod (201a).
5. The circuit breaker life detection device according to claim 4, characterized in that: An electric push rod (201c) is provided on one side of the fixed block (201b), and a linkage shaft (201e) is provided on the outer diameter of the output end of the electric push rod (201c).
6. The circuit breaker life detection device according to claim 5, characterized in that: A main clamping block (201f) is provided on one side of the main rod (201a), a secondary clamping block (201g) is slidably provided inside the main clamping block (201f), and the secondary clamping block (201g) is slidably connected to the linkage shaft (201e).
7. The circuit breaker life detection device according to claim 6, characterized in that: A limiting rod (2011) is arranged inside the main clamping block (201f), and the limiting rod (2011) is slidably connected to the auxiliary clamping block (201g).
8. The circuit breaker life detection device according to claim 7, characterized in that: A current sensor (304) is arranged on the top of the secondary clamping block (201g), a switch-off controller HQ (306) and a switch-on controller TQ (307) are arranged on the bottom of the current sensor (304), a transmission line (305) is arranged on the other side of the current sensor (304), and the transmission line (305) is electrically connected to the test unit (300).
9. The circuit breaker life detection device according to claim 8, characterized in that: The support assembly (301) comprises a detection box body (301a), a horizontal frame (301b) arranged on the detection box body (301a), and a vertical frame (301c) arranged on the horizontal frame (301b).
10. A detection method based on the circuit breaker life detection device according to claim 9, characterized in that: A bottom plate (301d) is arranged on the top of the vertical frame (301c).