CN211403813U - Loop state simulation cold pressing terminal in 24V low-voltage control secondary loop - Google Patents
Loop state simulation cold pressing terminal in 24V low-voltage control secondary loop Download PDFInfo
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- CN211403813U CN211403813U CN201922186086.2U CN201922186086U CN211403813U CN 211403813 U CN211403813 U CN 211403813U CN 201922186086 U CN201922186086 U CN 201922186086U CN 211403813 U CN211403813 U CN 211403813U
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- spliced pole
- box body
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Abstract
The utility model provides a loop state simulation cold pressing terminal in a 24V low-voltage control secondary loop, which comprises a box body; the box body is internally rectangular, openings at two ends in the box body are fixedly connected with a first connecting post and a second connecting post respectively, first connecting needles and second connecting needles are installed on the far-end faces of the first connecting post and the second connecting post respectively and are connected with electrical appliances and cold pressing wires respectively, a functional core tube is installed between the first connecting post and the second connecting post, and the upper end of the box body is sealed through an end cover. The utility model discloses a function core pipe that more replaces can simulate out the state of contact failure in the circuit return circuit, enables the content of training and examination abundanter.
Description
Technical Field
The utility model relates to a loop state simulation cold pressing terminal in 24V low pressure control secondary circuit.
Background
The circuit has faults mainly including three states of short circuit, open circuit and poor contact, and the fault point of the short circuit and the open circuit is relatively convenient to find for maintenance electricians, while the fault point of the poor contact is relatively difficult to find. For maintenance electrician training and examination, a plurality of corresponding examination and training devices are available on the market at present, but most of the devices are only limited to setting open-circuit and short-circuit faults and cannot set poor-contact faults through simple means. Meanwhile, in order to meet the function of setting faults, other control circuits are added to the equipment, and the low-voltage control circuit cannot be truly reflected. Thus, there are "short boards" for the cultivation and assessment and repair electrician skills.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a loop status simulation cold pressing terminal in 24V low pressure control secondary circuit.
The utility model discloses a following technical scheme can realize.
The utility model provides a loop state simulation cold pressing terminal in a 24V low-voltage control secondary loop, which comprises a box body; the box body is internally rectangular, openings at two ends in the box body are fixedly connected with a first connecting post and a second connecting post respectively, first connecting needles and second connecting needles are installed on the far-end faces of the first connecting post and the second connecting post respectively and are connected with electrical appliances and cold pressing wires respectively, a functional core tube is installed between the first connecting post and the second connecting post, and the upper end of the box body is sealed through an end cover.
The connecting structure is characterized in that the first connecting column and the second connecting column are square columns, threaded holes are machined in the vertical centers of the first connecting column and the second connecting column, functional core tube limiting grooves are machined in the opposite surfaces of the first connecting column and the second connecting column, and internal threaded holes are machined in the far end surfaces of the first connecting column and the second connecting column.
The end cover is the same with the length width homogeneous phase of box body, and the processing has the through-hole to correspond with the screw hole on first spliced pole and the second spliced pole at the end cover both ends, and two retaining members pass through the through-hole and cooperate the end cover locking on the box body with the screw hole.
The first connecting needle and the second connecting needle are respectively installed in the internal thread holes at the far ends of the first connecting column and the second connecting column through external threads processed on the first connecting needle and the second connecting needle, and a cylindrical groove is processed at the other end of the second connecting needle.
The functional core tube is a resistor or an inductor.
The power of the resistor or the inductor is 1W.
The locking piece is a bolt.
The first connecting column and the second connecting column are fixed in the box body when the box body is formed through injection molding of a mold.
The beneficial effects of the utility model reside in that: the state of poor contact in the circuit loop can be simulated through the replaced functional core tube, and the content of training and examination is richer.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
fig. 2 is a schematic structural view of a second connecting pin of the present invention;
in the figure: 1-a first connecting needle, 2-a first connecting column, 3-a second connecting column, 4-a second connecting needle, 5-a box body, 6-an end cover and 7-a locking piece.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A loop state simulation cold-pressed terminal in a 24V low-voltage control secondary loop comprises a box body 5; the box body 5 is inside to be rectangle, and both ends opening part rigid coupling respectively has first spliced pole 2 and second spliced pole 3 in the box body 5, installs first connecting pin 1 and second connecting pin 4 on the distal end face of first spliced pole 2 and second spliced pole 3 respectively, and first connecting pin 1 and second connecting pin 4 are connected with electrical apparatus and cold pressing wire respectively, install the function core pipe between first spliced pole 2 and the second spliced pole 3, 5 upper ends of box body are passed through end cover 6 and are sealed.
First spliced pole 2 and second spliced pole 3 are square column body, and the vertical center processing of first spliced pole 2 and second spliced pole 3 has the screw hole, and processing has functional core pipe spacing groove on the opposite face of first spliced pole 2 and second spliced pole 3, and processing has the internal thread hole on the distal end face of first spliced pole 2 and second spliced pole 3.
The length and width of the end cover 6 is the same as that of the box body 5, the two ends of the end cover 6 are provided with through holes corresponding to the threaded holes in the first connecting column 2 and the second connecting column 3, and the two locking pieces 7 penetrate through the through holes to be matched with the threaded holes to lock the end cover 6 on the box body 5.
The first connecting needle 1 and the second connecting needle 4 are respectively arranged in the internal thread holes at the far ends of the first connecting column 2 and the second connecting column 3 through external threads processed on the first connecting needle and the second connecting needle, and the other end of the second connecting needle 4 is processed with a cylindrical groove.
The functional core tube is a resistor or an inductor.
The power of the resistor or the inductor is 1W.
The locking member 7 is a bolt.
The first connecting column 2 and the second connecting column 3 are fixed in the box body 5 when the box body 5 is formed by injection molding through a mold.
As shown in fig. 1, the first connecting pin 1 is used for being connected with a wiring pile of an electrical device, the second connecting pin 4 is a cold pressing pin and is used for being connected with a connecting wire in a cold pressing mode, the mounting groove in the opposite surface of the first wiring pile and the second wiring pile is a square groove, and the two-end wiring broken finger of the functional tube core is pressed in the square groove through the locking piece 7 after extending into the square groove. The PVC box body forms through the preparation of moulding plastics of die sinking mould with the PVC end cover, first terminal 2 and second terminal 3 accomplish the back through machining, mould plastics when the PVC box body of moulding plastics and link into an integrated entity together, first connector pin passes through M2 mm's external screw thread and first wiring stake M2mm internal thread connection, be convenient for damage the back and change, the second connector pin passes through M2 mm's external screw thread and back wiring stake M2mm internal thread connection, it is removable after the convenient to use.
1. The cold-pressed terminal can be connected with a resistor core tube to realize access, open circuit simulation is realized through the empty core tube, particularly simulation of poor circuit contact state can be realized through the installation of the inductor core tube, and the short plate in maintenance electrician training and examination at present is to be compensated.
2. The core used for simulating the poor contact state of the cold pressing terminal is a resistor or an inductor with the power of 1W, and the parameter matching performance of the cold pressing terminal to a low-voltage device in a' 24V low-voltage control secondary circuit is strong due to the wide parameter range of the resistance value or the inductance value of the resistor. (for example: the inductance of the coil of the above German group CJX 2-18 AC contactor is 9.33mH, the power is 1W, the resistance is more than 11 omega or the inductance is more than 2mH, the inductance of the coil of the Schneider LC1NO610 AC contactor is 17.95mH, the power is 1W, the resistance is more than 39 omega or the inductance is more than 3.3mH, the inductance of the coil of the omron intermediate relay is 166.35mH, the power is 1W, the resistance is more than 270 omega or the inductance is more than 30 mH)
3. The cold pressing terminal can be used in control circuits formed by devices of different brands through specific parameters of core changing, and the universality is high.
4. Because the connecting pin and the cold pressing pin are connected with the front and the rear wiring piles by adopting a threaded structure, the replacement is convenient, and the use cost is reduced.
5. The cold pressing terminal is completely consistent with the existing cold pressing terminal in the market in operation and use methods, and training for using the universal cold pressing terminal can be truly realized.
6. The control circuit using the cold pressing terminal can truly reflect the distribution board (panel) of the equipment, and can enable training and examination to be more true.
7. Because the cold-pressed terminal is used in the control circuit, training and examination can be completed without other special training and examination equipment, and the problem that training institutions and schools lack funds and equipment are difficult to train is solved.
Claims (8)
1. The utility model provides a loop status simulation terminal of colding pressing in 24V low pressure control secondary circuit, includes box body (5), its characterized in that: the box body (5) is inside to be rectangle, and both ends opening part rigid coupling respectively has first spliced pole (2) and second spliced pole (3) in box body (5), installs first connecting pin (1) and second on the distal end face of first spliced pole (2) and second spliced pole (3) respectively and connects needle (4), and first connecting pin (1) and second are connected needle (4) and are connected with electrical apparatus and cold pressing wire respectively, install the function core pipe between first spliced pole (2) and the second spliced pole (3), box body (5) upper end is sealed through end cover (6).
2. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 1, wherein: first spliced pole (2) and second spliced pole (3) are square column body, and the vertical center processing of first spliced pole (2) and second spliced pole (3) has the screw hole, and processing has function core pipe spacing groove on the opposite face of first spliced pole (2) and second spliced pole (3), and processing has the internal thread hole on the distal end face of first spliced pole (2) and second spliced pole (3).
3. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 1, wherein: the length and width of the end cover (6) is the same as that of the box body (5), the two ends of the end cover (6) are provided with through holes corresponding to threaded holes in the first connecting column (2) and the second connecting column (3), and the two locking pieces (7) penetrate through the through holes to be matched with the threaded holes to lock the end cover (6) on the box body (5).
4. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 1, wherein: the first connecting needle (1) and the second connecting needle (4) are respectively installed in the internal thread holes at the far ends of the first connecting column (2) and the second connecting column (3) through external threads processed on the first connecting needle and the second connecting needle, and a cylindrical groove is processed at the other end of the second connecting needle (4).
5. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 1, wherein: the functional core tube is a resistor or an inductor.
6. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 5, wherein: the power of the resistor or the inductor is 1W.
7. A loop condition simulating cold pressed terminal in a 24V low voltage control secondary loop as claimed in claim 3, wherein: the locking piece (7) is a bolt.
8. The loop state simulation cold pressed terminal in a 24V low voltage control secondary loop of claim 1, wherein: the first connecting column (2) and the second connecting column (3) are fixed in the box body (5) when the box body (5) is subjected to injection molding through a mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922186086.2U CN211403813U (en) | 2019-12-09 | 2019-12-09 | Loop state simulation cold pressing terminal in 24V low-voltage control secondary loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922186086.2U CN211403813U (en) | 2019-12-09 | 2019-12-09 | Loop state simulation cold pressing terminal in 24V low-voltage control secondary loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211403813U true CN211403813U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922186086.2U Active CN211403813U (en) | 2019-12-09 | 2019-12-09 | Loop state simulation cold pressing terminal in 24V low-voltage control secondary loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211403813U (en) |
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2019
- 2019-12-09 CN CN201922186086.2U patent/CN211403813U/en active Active
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