CN213933999U - On-cable control protection device and residual current and charging current monitoring module thereof - Google Patents
On-cable control protection device and residual current and charging current monitoring module thereof Download PDFInfo
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- CN213933999U CN213933999U CN202023268312.0U CN202023268312U CN213933999U CN 213933999 U CN213933999 U CN 213933999U CN 202023268312 U CN202023268312 U CN 202023268312U CN 213933999 U CN213933999 U CN 213933999U
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Abstract
The utility model provides a control protection device on cable and residual current and charging current monitoring module thereof. The cover body is provided with a cover opening facing downwards and buckled on a main circuit board, the cover body comprises a first cavity, a second cavity and a third cavity which are connected with each other, two threading sleeves are arranged on the bottom side of the first cavity, the threading sleeves are provided with threading holes, four threading rings are uniformly distributed on the outer side of the cavity wall of the second cavity, one ends of two connecting wires penetrate through the two threading holes respectively, any two of the four threading rings penetrate through the other ends of the two connecting wires respectively and selectively, the cover body further comprises a current transformer sleeved on one of the two threading sleeves and a zero sequence current transformer sleeved outside the two threading sleeves simultaneously, the current transformer is positioned in the first cavity, the zero sequence current transformer is positioned in the second cavity, a control circuit board is installed in the third cavity, electric wires of the current transformer and the zero sequence current transformer are connected with the control circuit board, and a plurality of contact pins extending downwards are arranged on the control circuit board. The device has the advantages of compact arrangement, short wiring and multiple specifications for selection.
Description
Technical Field
The utility model relates to a control protection device on cable and residual current and charging current monitoring module thereof.
Background
Along with the gradual reduction of traditional energy, new forms of energy technique rises gradually, the car as the most common vehicle on land also uses all kinds of new forms of energy as power, wherein with electric automobile's use amount the biggest, electric automobile need charge with filling electric pile or domestic electricity through the charging cable when using, there is the electric leakage probably during charging, if produce direct current component during the electric leakage, will influence the protect function of interchange electric leakage, therefore, although domestic electricity exists the air protection switch, in order to prevent that the insulating layer of similar storage battery from destroying produces direct current electric leakage and influence the protect function of interchange electric leakage, need set up earth leakage protection device on the charging cable, control protection device (ICCPD) on the cable promptly.
The conventional on-cable control protection device is generally installed in a long and narrow square box, and the box is fixed on the charging cable, as shown in fig. 1, which is a schematic diagram of the internal structure of the conventional on-cable control protection device, various electronic components and a current transformer which is arranged on the live wire in a penetrating way are densely distributed on the circuit board to detect the charging current in the live wire, so as to adjust the magnitude of the charging current in real time, and is also provided with a zero sequence current transformer, wherein the live wire and the zero line simultaneously pass through the zero sequence current transformer, the zero sequence current transformer judges whether the electric leakage exists by detecting the current deviation value of the current flowing in (live wire) and the current flowing out (zero line), and output leakage alarm signal when leaking electric, the live wire gets into current transformer behind some electronic components after the cable gets into the box, and live wire and zero line pass zero sequence current transformer simultaneously afterwards, later come out from the box opposite side behind relay and subsequent electronic components respectively.
Current cable is gone up control protection device's current transformer and zero sequence current transformer and is followed the line direction and independently install on the circuit board in proper order, and shared space is great, leads to other electronic components and circuits to arrange more densely in original narrow and small box, and the space between the electronic components is very little, and the circulation of air is obstructed, and electronic components's the heat that generates heat spreads out to electronic components's ageing, life-span reduction with higher speed.
On the other hand, to the product of different arrangement modes, for example the right is arranged by the left side to the relay, because zero sequence current transformer and current transformer's the position of being qualified for the next round of competitions is not adjustable this moment, need increase and decrease cable length in order to realize being connected with the relay, this just leads to arranging of cable in the originally narrow and small space more difficult, very inconvenient, and the adjustment many times can also lead to being connected between cable and the binding post and appear not hard up probability improvement, influences the normal operating of equipment.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides an on-cable control protection device which integrates and arranges the current transformers and the zero sequence current transformers more compactly by arranging a special housing, and the outgoing line position has various specifications so as to be selected according to the positions of the connection terminal base and the relay, thereby reducing the length of the cable in the box and facilitating the arrangement of the cable; an object of the utility model is also to provide an integrative structure is in order to be used for installing residual current and charging current monitoring module among the control protection device on the cable.
The utility model discloses a control protection device's on cable technical scheme is realized like this: the on-cable control protection device comprises a box and a main circuit board installed in the box, and further comprises a residual current and charging current monitoring module installed on the main circuit board, wherein the residual current and charging current monitoring module comprises a cover body with an opening at one side, the cover body is buckled on the main circuit board with an opening facing a lower cover, the cover body comprises a first cavity, a second cavity and a third cavity which are connected, the first cavity is positioned above the second cavity, two threading sleeves are arranged at intervals at the bottom side of the first cavity, the threading sleeves are provided with threading holes, four threading rings are uniformly distributed on the outer side of the cavity wall of the second cavity, the residual current and charging current monitoring module further comprises two connecting wires, one ends of the two connecting wires respectively penetrate through the two threading holes from top to bottom, the other ends of the two connecting wires respectively penetrate through any two of the four threading rings from top to bottom selectively, and the residual current and charging current monitoring module further comprises a current mutually sleeved on one of the two threading sleeves The sensor and establish the zero sequence current transformer outside two wire sleeves simultaneously, current transformer is located the first cavity, and zero sequence current transformer is located the second cavity, installs control circuit board in the third cavity, and current transformer and zero sequence current transformer's electric wire is connected with control circuit board, is equipped with many contact pins that extend down on the control circuit board.
On the basis of the scheme, the cover is further improved in the following manner, and pouring sealant is poured in the cover body.
On the basis of the scheme, the pin inserting device is further improved in the following mode, six pin inserting devices are arranged in a straight line shape at intervals.
On the basis of the scheme, the first cavity is further improved as follows, and the first cavity is formed by combining a semi-cylindrical cavity and a rectangular cavity.
On the basis of the scheme, the second cavity is further improved to be cylindrical.
The utility model discloses a residual current and charging current monitoring module's technical scheme is realized like this: the residual current and charging current monitoring module comprises a cover body with an opening at one side, the cover body is used for covering and buckling the main circuit board with an opening facing downwards, the cover body comprises a first cavity, a second cavity and a third cavity which are connected, the first cavity is positioned above the second cavity, two threading sleeves are arranged at intervals at the bottom side of the first cavity, the threading sleeves are provided with threading holes, four threading rings are uniformly distributed at the outer side of the cavity wall of the second cavity, the residual current and charging current monitoring module further comprises two connecting wires, one ends of the two connecting wires respectively penetrate through the two threading holes from top to bottom, the other ends of the two connecting wires respectively penetrate through any two of the four threading rings from top to bottom selectively, the residual current and charging current monitoring module further comprises a current transformer sleeved on one of the two threading sleeves and a zero-sequence current transformer sleeved outside the two threading sleeves simultaneously, the current transformer is located the first cavity, and zero sequence current transformer is located the second cavity, installs control circuit board in the third cavity, and current transformer and zero sequence current transformer's electric wire and control circuit board are connected, are equipped with many contact pins that extend down on the control circuit board.
On the basis of the scheme, the cover is further improved in the following manner, and pouring sealant is poured in the cover body.
On the basis of the scheme, the pin inserting device is further improved in the following mode, six pin inserting devices are arranged in a straight line shape at intervals.
On the basis of the scheme, the first cavity is further improved as follows, and the first cavity is formed by combining a semi-cylindrical cavity and a rectangular cavity.
On the basis of the scheme, the second cavity is further improved to be cylindrical.
By adopting the technical scheme, the beneficial effects of the utility model are that: when in use, the residual current and charging current monitoring module products are set with various specifications, including various arrangement combinations that the current transformers are respectively sleeved on different threading sleeves and two connecting wires respectively pass through the two different threading rings, according to the positions of the connecting terminals and the position of the relay, the principle that the outgoing line is close to the nearest connecting terminal to the greatest extent is adopted, and the selection is carried out according to the current of the live wire or the current of the zero line required to be detected by a client, the proper residual current and charging current monitoring module products are selected to be downwards buckled on the main circuit board in an opening way and the corresponding circuit is connected, because the current transformers and the zero sequence current transformers are arranged up and down in the cover body and are arranged compactly, the outgoing line is close to the connecting terminal, the electric wire for wiring is short, and the space occupation in the box is greatly saved, more spaces are reserved for arrangement of other electronic components, gaps among the electronic components are enlarged, air circulation is smooth, heat can be discharged in time, aging of the electronic components due to heat accumulation is avoided, and service life of the electronic components is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of the internal structure of a prior art on-cable control and protection device;
FIG. 2 is a layout diagram (inside a box) of a portion of the electronic components on the main circuit board of the on-cable control and protection device of the present invention;
fig. 3 is a schematic diagram of a front axle measuring structure of the residual current and charging current monitoring module of the present invention;
fig. 4 is a schematic diagram of a rear axle side structure of the residual current and charging current monitoring module of the present invention;
fig. 5 is a perspective view of the internal structure of the residual current and charging current monitoring module of the present invention;
fig. 6 is a front view of the internal structure of the residual current and charging current monitoring module of the present invention;
wherein: the device comprises a box 1, a live wire 21, a zero wire 22, a main circuit board 3, a residual current and charging current monitoring module 4, a cover 41, a cover 411, a first cavity 412, a second cavity 413, a third cavity 414, a threading sleeve 415, a threading hole 416, a threading ring 42, a current transformer 43, a zero sequence current transformer 44, a control circuit board 45, a contact pin 46, a screw 47, pouring sealant 47, a relay 5 and a terminal base 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 2, the layout (in the box) of part of the electronic components on the main circuit board of the on-cable control protection device of the present invention comprises a main circuit board 3, a residual current and charging current monitoring module 4, three wiring terminal bases 6, four wiring terminal bases 6 and two relays 5, as shown in fig. 3-6, the residual current and charging current monitoring module 4 comprises a cover 41 with an opening on one side, the cover 41 is covered on the main circuit board 3 with an opening facing downward, the cover 41 comprises a first cavity 411, a second cavity 412 and a third cavity 413 connected with each other, the first cavity 411 is located above the second cavity 412, two threading sleeves 414 are arranged at intervals on the bottom side of the first cavity 411, the threading sleeves 414 have threading holes 415, four threading rings 416 are evenly distributed outside the cavity wall of the second cavity 412, the residual current and charging current monitoring module 4 further comprises two connection lines, one end of each of the two connecting wires passes through the two threading holes 415 from top to bottom, the other end of each of the two connecting wires selectively passes through any two of the four threading rings 416 from top to bottom, the residual current and charging current monitoring module 4 further comprises a current transformer 42 sleeved on one of the two threading sleeves 414 and a zero sequence current transformer 43 sleeved outside the two threading sleeves 414, the current transformer 42 is located in the first cavity 411, the zero sequence current transformer 43 is located in the second cavity 412, the control circuit board 44 is installed in the third cavity 413, electric wires of the current transformer 42 and the zero sequence current transformer 43 are connected with the control circuit board 44, and the control circuit board 44 is provided with a plurality of contact pins 45 extending downwards.
More specifically, a potting adhesive 47 is poured into the cover 41. The pins 45 have six pins 45, and the six pins 45 are arranged in a linear shape at intervals. The first cavity 411 is formed by combining a semi-cylindrical cavity and a rectangular cavity. The second cavity 412 is cylindrical.
When in use, the residual current and charging current monitoring module 4 product is set with various specifications, including various arrangement combinations that the current transformer 42 is respectively sleeved on different threading sleeves 414 and two connecting wires respectively pass through different two threading rings 416, according to the position of the connecting terminal and the position of the relay 5, the principle that the outgoing line is close to the nearest connecting terminal to the greatest extent is adopted, and the selection is carried out according to whether the current of the live wire 21 or the current of the zero wire 22 is required to be detected by a client, the proper residual current and charging current monitoring module 4 product is selected to be downwards buckled on the main circuit board 3 in an opening way and the corresponding circuit is connected, because the current transformer 42 and the zero sequence current transformer 43 are arranged up and down in the cover body 41 and are very compactly arranged, the outgoing line is closer to the connecting terminal, the wire for wiring is shorter, thereby greatly saving the space occupation in the box 1, more spaces are reserved for arrangement of other electronic components, gaps among the electronic components are enlarged, air circulation is smooth, heat can be discharged in time, aging of the electronic components due to heat accumulation is avoided, and service life of the electronic components is prolonged.
The utility model discloses a residual current and the structure of the residual current in the embodiment of the control protection device on the above-mentioned cable is the same with the charging current monitoring module in the specific embodiment of residual current and charging current monitoring module, no longer gives unnecessary details.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The on-cable control protection device comprises a box and a main circuit board arranged in the box, and is characterized by further comprising a residual current and charging current monitoring module arranged on the main circuit board, wherein the residual current and charging current monitoring module comprises a cover body with an opening at one side, the cover body is buckled on the main circuit board with the opening facing downwards, the cover body comprises a first cavity, a second cavity and a third cavity which are connected, the first cavity is positioned above the second cavity, two threading sleeves are arranged at intervals at the bottom side of the first cavity, each threading sleeve is provided with threading holes, four threading rings are uniformly distributed on the outer side of the cavity wall of the second cavity, the residual current and charging current monitoring module further comprises two connecting wires, one ends of the two connecting wires respectively penetrate through the two threading holes from top to bottom, and the other ends of the two connecting wires respectively penetrate through any two threading rings selectively from top to bottom, the residual current and charging current monitoring module further comprises a current transformer and a zero sequence current transformer, wherein the current transformer is sleeved on one of the two threading sleeves, the zero sequence current transformer is sleeved outside the two threading sleeves, the current transformer is located in the first cavity, the zero sequence current transformer is located in the second cavity, a control circuit board is installed in the third cavity, electric wires of the current transformer and the zero sequence current transformer are connected with the control circuit board, and a plurality of contact pins extending downwards are arranged on the control circuit board.
2. The on-cable control and protection device of claim 1, wherein a potting adhesive is poured into the cover.
3. The on-cable control and protection device of claim 1, wherein the pins have six pins, and the six pins are arranged in a linear shape at intervals.
4. The on-line control and protection device of claim 1, wherein the first cavity is a combination of a semi-cylindrical cavity and a rectangular cavity.
5. The on-cable control and protection device of claim 1, wherein the second cavity is cylindrical.
6. The residual current and charging current monitoring module is characterized by comprising a cover body with an opening at one side, wherein the cover body is used for being buckled on a main circuit board with a downward opening cover, the cover body comprises a first cavity, a second cavity and a third cavity which are connected, the first cavity is positioned above the second cavity, two threading sleeves are arranged at intervals on the bottom side of the first cavity, the threading sleeves are provided with threading holes, four threading rings are uniformly distributed on the outer side of the cavity wall of the second cavity, the residual current and charging current monitoring module further comprises two connecting wires, one ends of the two connecting wires respectively penetrate through the two threading holes from top to bottom, the other ends of the two connecting wires respectively penetrate through any two of the four threading rings from top to bottom selectively, the residual current and charging current monitoring module further comprises a current transformer sleeved on one of the two threading sleeves and a zero sequence current transformer sleeved outside the two threading sleeves simultaneously, the current transformer is located the first cavity, and zero sequence current transformer is located the second cavity, installs control circuit board in the third cavity, and current transformer and zero sequence current transformer's electric wire and control circuit board are connected, are equipped with many contact pins that extend down on the control circuit board.
7. The residual current and charging current monitoring module according to claim 6, wherein a potting adhesive is poured into the cover.
8. The residual current and charging current monitoring module according to claim 6, wherein six pins are provided, and the six pins are arranged in a linear shape at intervals.
9. The residual current and charging current monitoring module according to claim 6, wherein the first cavity is formed by a combination of a semi-cylindrical cavity and a rectangular cavity.
10. The residual current and charging current monitoring module according to claim 6, wherein said second cavity is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268312.0U CN213933999U (en) | 2020-12-30 | 2020-12-30 | On-cable control protection device and residual current and charging current monitoring module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268312.0U CN213933999U (en) | 2020-12-30 | 2020-12-30 | On-cable control protection device and residual current and charging current monitoring module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213933999U true CN213933999U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023268312.0U Active CN213933999U (en) | 2020-12-30 | 2020-12-30 | On-cable control protection device and residual current and charging current monitoring module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213933999U (en) |
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2020
- 2020-12-30 CN CN202023268312.0U patent/CN213933999U/en active Active
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