CN216873611U - Power distributor - Google Patents

Abstract

The utility model discloses a distributor. The power distributor comprises a chassis; the distribution pole is arranged in the case, and one end of the distribution pole is electrically connected with a power supply circuit outside the distributor; a plurality of circuit breakers are arranged in the case and are arranged in a plurality of loads one-to-one manner outside the distributor, one end of each circuit breaker is electrically connected with the distribution rod, the other end of each circuit breaker is electrically connected with the loads, one circuit breaker is electrically connected with one load to form a distribution circuit of the same kind, when the circuit breaker in the distribution circuit or the multi-path distribution circuit of the same kind in the distribution structure goes wrong, the circuit breaker which goes wrong only needs to be replaced or maintained, and then the problem that in the prior art, when the distribution circuit of the same kind goes wrong, the problem of the whole distribution structure can be replaced only, and the cost is effectively reduced.

Description

Power distributor

Technical Field

The utility model relates to the technical field of power distributors, in particular to a power distributor.

Background

In the related art, when 5G communication equipment and a data center are used, requirements on size, replaceability and intellectualization are required. The existing branch distribution unit adopts a large circuit board, multiple paths (such as 10 paths or 15 paths) of control metering units are distributed on the large circuit board, if one path of control metering unit has problems, the whole circuit board needs to be replaced, and due to the fact that the size of the branch distribution unit is large, replacement operation on site is difficult. The on-off of the existing pluggable circuit breaker basically realizes the on-off of a short circuit by driving a contact and a handle to move through a mechanism, when a circuit fails, the mechanism drives the contact to open a cut-off circuit under the pushing of a release or a thermal release, and the handle is changed from a switch-on position to a switch-off position.

In addition, the existing circuit breaker product does not have functions of metering, monitoring, controlling, communicating (namely a data uploading platform) and the like on a circuit because the open-close current is realized in a mechanical mode, and also has functions of metering, counting, real-time monitoring, event recording, timing on-off control, standby power management, local or remote communication, power-off according to time length, voltage and electric quantity, on-off in duty-free time period and the like on voltage, current, electric quantity, power and electric leakage.

Furthermore, the circuit breaker has overcurrent or fault current to produce at the course of the work, and the long-time circular telegram work of circuit breaker, heating element in the circuit breaker can generate heat, and a plurality of circuit breakers are installed in the quick-witted case of distributor, and the shell of two adjacent circuit breakers is close-fitting together, and current plug-in circuit breaker's radiating effect is relatively poor, and the heat accumulation of a plurality of circuit breakers probably arouses the temperature rise stack, and the temperature risees in the machine case, and the heat can not in time distribute away. On one hand, the circuit breaker may be tripped, thereby affecting the operation performance and reliability of the circuit breaker; on the other hand, potential safety hazards may be caused to electrical equipment, operators and the like.

In some application scenarios, for example, in power distribution of an iron tower base station or a data center, a direct current breaker is generally adopted as overcurrent or short circuit protection, and a contactor is adopted as on-off control.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the utility model provides a power distributor which can realize intelligent fine control on a circuit breaker, has a compact and simple structure and has a good heat dissipation effect.

The above purpose is realized by the following technical scheme:

a power distributor, comprising:

a chassis;

the distribution pole is arranged in the case, and one end of the distribution pole is electrically connected with a power supply circuit outside the distributor;

the breaker is arranged in the case and is arranged in a plurality of loads outside the distributor in a one-to-one correspondence mode, one end of the breaker is electrically connected with the distribution rod, and the other end of the breaker is electrically connected with the loads.

Optionally, the circuit breaker comprises:

a housing;

a circuit board disposed within the housing;

a first wiring assembly disposed within the housing, the first wiring assembly including a first interface and a first wiring board electrically connected to the first interface, the first interface being electrically connected to the power distribution pole;

the second wiring assembly is arranged in the shell and comprises a second interface, a second wiring board and a third wiring board, wherein the second wiring board and the third wiring board are electrically connected with the second interface;

the first wiring board, the second wiring board or the third wiring board is electrically connected to the wiring board.

Optionally, the distribution pole includes a positive distribution board and a negative distribution board, one end of the first interface is electrically connected to the positive distribution board, the other end is electrically connected to the first wiring board, one end of the second interface is electrically connected to the negative distribution board, and the other end is electrically connected to the second wiring board.

Optionally, the first interface is disposed at a first end of the housing, a first end of the first wiring board is electrically connected to the first interface, a second end of the first wiring board is electrically connected to a first load interface of the circuit breaker, and the first wiring board is disposed at one side of the circuit board;

the second interface sets up the first end of casing and with first interface is relative and the interval sets up, the first end of second wiring board with the second interface electricity is connected, the second end with the circuit board electricity is connected, the first end of third wiring board with the circuit board electricity is connected, the second end with the second load interface electricity of circuit breaker is connected, second wiring board and third wiring board all set up the opposite side of circuit board.

Optionally, the first elastic terminal is arranged between the first load interface and the second end of the first wiring board, the second end of the first wiring board abuts against the side face of the first elastic terminal, the second elastic terminal is arranged between the second load interface and the second end of the third wiring board, and the second end of the second wiring board abuts against the side face of the second elastic terminal.

Optionally, the circuit board is provided with:

the electric energy metering unit is used for calculating electric quantity;

the communication unit is used for uploading the information of the circuit board to a terminal platform and receiving signals sent by the terminal platform;

the short-circuit protection unit is used for closing a main switch of the circuit breaker when the circuit breaker generates overcurrent or short circuit;

and the power supply module is used for driving the electric energy metering unit, the communication unit and the short-circuit protection unit to work.

Optionally, the communication unit includes a communication interface, the communication interface is disposed at the first end of the housing and located between the first interface and the second interface, one end of the communication interface is electrically connected to the circuit board, the power distributor further includes a communication connection board, the communication connection board is disposed in the chassis, and the other end of the communication interface is electrically connected to the communication connection board.

Optionally, the wiring board comprises:

the main board is arranged at the bottom side of the shell, the communication unit, the electric energy metering unit and the over-current and short-circuit protection unit are all arranged on the main board, and the main board is also provided with an MCU;

the power panel is arranged on the upper side of the mainboard and is parallel to the mainboard, and the power module is arranged on the power panel.

Optionally, the master switch of circuit breaker is the MOS switch, still includes the position detection structure, the position detection structure sets up and stretches out in the casing for detect whether the circuit breaker is installed in place, work as before the circuit breaker is installed in place, the MOS switch is closed, work as the circuit breaker is installed in place the back, the MOS switch is opened.

Optionally, the circuit breaker further comprises a heat dissipation structure, wherein the heat dissipation structure is arranged on the shell and used for dissipating heat of the circuit breaker.

Optionally, the heat dissipation structure comprises;

the first heat removal groove is concavely arranged on the side surface of the shell of the circuit breaker in the width and length directions, and extends along the plugging and unplugging direction of the circuit breaker;

the second heat discharging groove is concavely arranged on the side surface of the shell where the height direction and the length direction are positioned, and the second heat discharging groove extends along the direction vertical to the first heat discharging groove;

and the third heat discharge groove is concavely arranged on the side surface of the shell, which is provided with the first heat discharge groove, and the third heat discharge groove extends along the direction vertical to the first heat discharge groove.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

the utility model provides a power distributor which comprises a chassis, a power distribution pole and a plurality of circuit breakers. The distribution pole sets up in quick-witted incasement, and the one end of distribution pole is connected with the outside power supply line electricity of distributor. A plurality of circuit breakers are arranged in a case and are arranged in a plurality of loads one-to-one correspondence outside a distributor with a plurality of settings, one end of each circuit breaker is electrically connected with a distribution rod, the other end of each circuit breaker is electrically connected with the loads, one circuit breaker is electrically connected with one load to form a distribution circuit of the same kind, when the circuit breaker in one of the distribution circuits or in multiple distribution circuits in a distribution structure goes wrong, the circuit breaker which only needs to be replaced or maintained can be used, further, the problem in the prior art is solved, when the distribution circuit in the same kind goes wrong, the problem of the whole distribution structure can be replaced, and the cost is effectively reduced.

Drawings

Fig. 1 is a schematic perspective view of a power distributor according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

figure 3 is an assembly view of a circuit breaker of a power distributor with a distribution pole and a communication connection board according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a circuit breaker according to an embodiment of the present invention;

fig. 5 is a front view of the circuit breaker with the upper housing removed in accordance with an embodiment of the present invention;

fig. 6 is a schematic perspective view of a circuit breaker according to an embodiment of the present invention with an upper housing removed;

FIG. 7 is an enlarged view at A in FIG. 6;

fig. 8 is a schematic perspective view of an upper housing of a circuit breaker according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a control scheme provided by an embodiment of the present invention;

fig. 10 is a schematic perspective view of an angle of a circuit breaker according to an embodiment of the present invention;

fig. 11 is a schematic perspective view of another angle of the circuit breaker according to the embodiment of the utility model;

fig. 12 is a schematic perspective view of a lower housing of a circuit breaker according to an embodiment of the utility model.

In the figure:

1. a housing; 11. a lower housing; 111. a second heat removal tank; 112. a first heat removal groove; 113. a third heat removal tank; 114. a first window; 12. an upper housing; 124. a fourth heat removal groove; 125. a sixth heat removal tank; 126. A second window; 127. a fifth heat discharge groove; 1201. a third limit frame; 1202. a fourth limit frame; 1203. A tenth limit frame body; 121. a guide bar; 122. a seventh limiting frame body; 123. an eighth limit frame body; 14. Raised lines;

20. a first limit frame; 21. a first interface; 22. a first wiring board;

30. a second limit frame; 31. a second interface; 32. a second wiring board; 33. a third wiring board;

4. a circuit board; 41. a power panel; 42. a main board;

51. a first elastic terminal; 511. a fifth limiting frame body; 52. a second elastic terminal; 522. a sixth limiting frame body;

61. a communication interface; 62. a ninth limit frame body;

71. a moving member; 711. a guide groove; 72. an action block; 721. a bevel; 73. an elastic member;

8. a microswitch;

9. pressing a key;

10. an indicator; 100. a light guide pillar; 200. a first load interface; 201. a second load interface;

300. a circuit breaker; 400. a chassis; 401. a lower box shell; 4011. a limiting part; 402. an upper box shell; 501. A positive distribution board; 502. a negative distribution board; 600. communication connecting board.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the utility model or equivalent substitutions of parts of technical features without departing from the spirit of the utility model are intended to be covered by the scope of the claims of the utility model.

Referring to fig. 1 to 12, the present invention provides a power distributor including a cabinet 400, a distribution pole, and a plurality of circuit breakers 300. The distribution pole is disposed in the case 400, and one end of the distribution pole is electrically connected to a power supply line outside the distributor. A plurality of circuit breakers 300 set up in quick-witted case 400 and with a plurality of settings at the outside a plurality of loads one-to-one setting of distributor, circuit breaker 300's one end is connected with the distribution pole electricity, the other end is connected with the load electricity, a circuit breaker is connected with a load electricity and is formed distribution circuit all the way, so set up, when the circuit breaker among them in the distributor distribution circuit all the way or among many distribution circuits goes wrong, only need change or maintain the circuit breaker that goes wrong can, and then solved among the prior art, when distribution circuit of wherein all the way goes wrong, only can change the problem of whole distributor, effectively the cost is reduced.

Optionally, the circuit breaker includes a housing 1, a circuit board 4, a first wiring assembly and a second wiring assembly. The wiring board 4 is provided in the housing 1. The first wiring member 2 is disposed in the housing 1, and the first wiring member 2 includes a first interface 21 and a first wiring board 22 electrically connected to the first interface 21. The second wiring member 3 is provided in the housing 1, the second wiring member 3 includes a second interface 31, and a second wiring board 32 and a third wiring board 33 electrically connected to the second interface 31, and the first wiring board 22, the second wiring board 32, or the third wiring board 33 is electrically connected to the wiring board 4.

Alternatively, the first interface 21 is electrically connected to the positive pole of the distribution bar of the power distributor and the second interface 31 is electrically connected to the negative pole of the distribution bar of the power distributor. The first port 21 is provided at a first end of the case 1, a first end of a first terminal block 22 is electrically connected to the first port 21, a second end is electrically connected to a first load port 200 of the circuit breaker, and the first terminal block 22 is provided on a side of the wiring board 4. The second interface 31 is arranged at the first end of the shell 1, opposite to the first interface 21 and spaced from the first interface, the first end of the second wiring board 32 is electrically connected with the second interface 31, the second end is electrically connected with the circuit board 4, the first end of the third wiring board 33 is electrically connected with the wiring board, the second end is electrically connected with the second load interface 201 of the circuit breaker, and the second wiring board 32 is electrically connected with the circuit board 4 and arranged at the other side of the circuit board 4.

Specifically, in the present embodiment, the first interface 21 is soldered to the first wiring board 22 to achieve electrical connection between the first interface 21 and the first wiring board 22. The second interface 31 is soldered to the second wiring board 32 to achieve electrical connection between the second interface 31 and the second wiring board 32. The second wiring board 32 is soldered to the wiring board 4 to achieve electrical connection between the second wiring board 32 and the wiring board 4. The third wiring board 33 is soldered to the wiring board 4 to achieve electrical connection between the third wiring board 33 and the wiring board 4. Therefore, the assembling process of the circuit breaker is simplified, the preparation cost is reduced, and the structure is further simplified.

Optionally, the chassis 400 includes an upper box 402 and a lower box 401, the upper box 402 and the lower box 401 enclose to form an accommodating cavity, one end of the chassis 400 is provided with an opening, and the circuit breaker 300 and the power distribution pole are both disposed in the accommodating cavity and electrically connected to the load through the opening.

Optionally, the bottom side of the lower case 401 is provided with a plurality of limiting portions 4011, the bottom side of a circuit breaker 300 is disposed between two adjacent limiting portions 4011, and the two adjacent limiting portions 4011 are used for limiting the circuit breaker 300.

Alternatively, the stopper 4011 is formed by pressing down the bottom side of the box 401.

Alternatively, the distribution pole includes a positive distribution board 501 and a negative distribution board 502, one end of the first interface 21 is electrically connected to the positive distribution board 501, the other end is electrically connected to the first wiring board 22, one end of the second interface 31 is electrically connected to the negative distribution board 502, and the other end is electrically connected to the second wiring board 32.

Optionally, the housing 1 includes an upper housing 12 and a lower housing 11, the upper housing 12 and the lower housing 11 enclose a synthetic cavity, the circuit board 4, the first wiring assembly 2 and the second wiring assembly 3 are all disposed in the cavity, the first end of the lower housing 11 is provided with a first limiting frame 20 and a second limiting frame 30 opposite to the first limiting frame 20 and disposed at an interval, the first end of the upper housing 12 is provided with a third limiting frame 1201 and a fourth limiting frame 1202, the first limiting frame 20 and the third limiting frame 1201 are correspondingly disposed and enclose to form a first limiting cavity, the second limiting frame 30 and the fourth limiting frame 1202 are correspondingly disposed and enclose to form a second limiting cavity, the first interface 21 is disposed in the first limiting cavity, and the second interface 31 is disposed in the second limiting cavity, so as to implement the installation of the first interface 21 and the second interface 31 in the housing 1.

Optionally, a first elastic terminal 51 and a second elastic terminal 52 are further included, the first elastic terminal 51 is disposed between the first load interface 200 and the second end of the first wiring board 22, and the second end of the first wiring board 22 abuts against the side of the first elastic terminal 51, so as to mount the first wiring board 22 and the first interface 21 in the housing 1. The second elastic terminal 52 is provided between the second load port 201 and the second end of the third wiring board 33, and one end of the third wiring board 33 abuts on the side surface of the second elastic terminal 52, so that the third wiring board 33 and the second port 31 are mounted in the housing 1.

Optionally, a fifth limiting frame 511 and a sixth limiting frame 522 opposite to the fifth limiting frame 511 and disposed at an interval are disposed at the second end of the lower housing 11, a seventh limiting frame 122 and an eighth limiting frame 123 opposite to the seventh limiting frame 122 and disposed at an interval are disposed at the second end of the upper housing 12, the fifth limiting frame 511 and the seventh limiting frame 122 are disposed correspondingly and enclose a third limiting cavity, the sixth limiting frame 522 and the eighth limiting frame 123 are disposed correspondingly and enclose a fourth limiting cavity, the first elastic terminal 51 is disposed in the third limiting cavity, and the second elastic terminal 52 is disposed in the fourth limiting cavity.

Optionally, an electric energy metering unit is arranged on the circuit board 4, and the electric energy metering unit is used for calculating electric quantity.

According to the circuit breaker provided by the utility model, the electric energy metering unit is arranged on the circuit board 4, so that the circuit breaker has the function of independently calculating the electric quantity of any power distribution circuit in the distributor, and a user can conveniently and accurately obtain the electric quantity used by each independent power distribution circuit.

Optionally, the electric energy metering unit adopts a chip special for electric energy metering, and high-precision electric energy metering and temperature protection are realized by detecting voltage, current and temperature through a resistor divider, a current divider and a thermistor.

Optionally, the first interface 21 and the second interface 31 are both Y-shaped elastic interfaces.

Optionally, a communication unit is further arranged on the circuit board 4, and the communication unit is used for uploading information of the circuit board 4, such as electric quantity calculated by the metering unit and information for controlling the on-off of the circuit board 4, to a terminal platform, so that a user can look up the information and can also receive signals sent by the platform. For example, the circuit board 4 can control the on/off of a circuit breaker according to a signal sent by the platform. Thereby, the remote control of the circuit breaker is realized.

Optionally, the communication unit comprises a communication interface 61. The communication interface 61 is arranged at the first end of the housing and is located between the first interface 21 and the second interface 31. The communication interface 61 is electrically connected with the circuit board 4, one end of the communication interface 61 is electrically connected with the circuit board 4, the distributor further comprises a communication connection board 600, the communication connection board 600 is arranged in the case 400, and the other end of the communication interface 61 is electrically connected with the communication connection board 600.

Optionally, communication interface 61 supports the standard MODBUS protocol.

Optionally, a ninth limiting frame 62 is disposed at the first end of the lower housing 11, a tenth limiting frame 1203 is disposed at the first end of the upper housing 12, the ninth limiting frame 62 and the tenth limiting frame 1203 are disposed correspondingly and enclose a fifth limiting cavity, and the communication interface 61 is disposed in the fifth limiting cavity to implement installation of the communication interface 61 in the housing 1.

Optionally, a ninth limiting frame 62 is disposed in the housing 1, and the communication interface 61 is disposed in the ninth limiting frame 62.

Optionally, the communication unit is RS485 or CAN, and the interface of RS485 and CAN is electrically isolated from the main loop of the circuit board 4, so as to protect electrical safety.

Optionally, an overcurrent and short-circuit protection unit is further disposed on the circuit board 4, and the short-circuit protection unit is configured to close a main switch of the circuit breaker to protect the circuit breaker when an overcurrent or a short circuit occurs in the circuit breaker.

Specifically, the overcurrent and short-circuit protection unit comprises a comparator and a shunt, when short-circuit fault occurs, the shunt generates a large-current signal, the comparator quickly acts to turn off a main switch and lock output, and when the overcurrent or short-circuit fault is relieved, short-circuit protection can be automatically relieved through software matched with the circuit breaker.

Optionally, the circuit breaker can also set actual application requirements such as user type, capacity size, standby power time, overcurrent (overload) amount and the like through software.

Optionally, the main switch of the circuit breaker is a MOS switch.

Specifically, the MOS switch adopts an N-channel MOS switch with high current and low internal resistance, and a plurality of MOS switches are connected in parallel, so that the loss of the switch is reduced to the maximum extent, and the temperature rise is reduced.

Optionally, the circuit breaker further comprises a position detection structure, the position detection structure is arranged in the shell 1 and extends out of the shell 1, the position detection structure is used for detecting whether the circuit breaker is installed in place, the MOS switch is closed before the circuit breaker is installed in place, and the MOS switch is opened after the circuit breaker is installed in place, so that the non-electric operation during the installation of the circuit breaker is achieved, and the safety of operators is guaranteed.

Alternatively, the position detecting structure includes the micro switch 8, the moving member 71, and the elastic member 73. The moving piece 71 is arranged in the housing 1 and can move towards the position close to the middle part of the housing 1 relative to the housing 1 under the action of external force so as to abut against the microswitch 8, so that the microswitch 8 is disconnected, and the breaker is powered off at the moment. The elastic member 73 is disposed between the moving member 71 and the housing 1, when the moving member 71 moves toward the middle position near the housing 1, the elastic member 73 is compressed, and when the external force on the moving member 71 is removed, the moving member 71 can move toward the direction near the edge of the housing 1 under the elastic force of the elastic member 73 to disengage from the micro switch 8, so that the micro switch 8 is closed, and the circuit breaker is powered on.

Specifically, the position detection structure further comprises an action block 72, the action block 72 is mounted on the moving part 1, a through hole is further formed in the shell 1, and the action block 72 penetrates through the through hole and extends out of the shell 1. One side of action block 72 is provided with inclined plane 721, and when the circuit breaker was installed in the distributor, the distributor extruded inclined plane 721 for action block 72 moved towards the direction of being close to the casing 1 inside, thereby pushed motion 71 and moved towards the casing 1 inside and with micro-gap switch 8 butt, make micro-gap switch 8 disconnection, the circuit breaker outage.

Optionally, the position detecting structure further includes a guide structure for guiding the mover 71. Specifically, the guide structure includes a guide groove 711 and a guide rod 121, one of the guide groove 711 and the guide rod 121 is provided on the housing 1, and the other of the guide groove 711 and the guide rod 121 is provided on the moving member 71. The guide groove 711 is engaged with the guide bar 121 and moves relatively, thereby achieving a guide effect for the moving member 71 during the movement.

Optionally, the housing 1 includes an upper housing 12 and a lower housing 11, and the circuit board 4, the first wiring assembly, the second wiring assembly, the first spring terminal, the second spring terminal, and the ninth limiting frame 62 are disposed in the lower housing 11. The guide rod 121 of the guide structure is disposed in the upper case 12, and the guide groove 711 is disposed on the moving member 71.

Optionally, a power module is further disposed on the circuit board 4.

Optionally, the power module drives the circuit board 4 to operate by using a BUCK-type DC-DC circuit.

Optionally, the display device further comprises an indicator 10 and a light guide column, wherein the indicator 10 is arranged on the shell 1 and is electrically connected with the circuit board 4 through the light guide column.

Optionally, the device further comprises a key 9, the key 9 is arranged on the housing 1 and used for controlling the opening and closing of the circuit breaker and the disconnection, and address configuration can be performed by pressing the key 9 for a long time.

Optionally, the shell 1 is further provided with a raised grain 14, which plays a role in increasing friction force for fingers of an operator when a product is plugged.

Alternatively, the wiring board 4 includes a main board 42 and a power supply board 41. Wherein, the power module is arranged on the power panel 41, and the main board 42 is provided with a communication unit, an electric energy metering unit, an over-current and short-circuit protection unit and an MCU.

Alternatively, the main board 42 is disposed on the bottom side of the housing 1, and the power supply board 41 is disposed on the upper side of the main board 42 and is disposed in parallel with the main board 42.

Optionally, a heat dissipation structure is further disposed on the housing 1, and is used for dissipating heat of the circuit breaker.

Optionally, the heat dissipation structure includes a first heat discharge slot 112, a second heat discharge slot 111, and a third heat discharge slot 113. The first heat discharging groove 112 is concavely arranged on the side surface where the width and length directions of the housing of the circuit breaker are located, and the first heat discharging groove 112 extends along the plugging direction (i.e. the length direction shown in fig. 1) of the circuit breaker to convect and radiate heat in the plugging direction. The second heat discharging groove 111 is concavely arranged on the side surface of the shell where the height direction and the length direction are located, and the second heat discharging groove 111 is arranged to extend in the direction perpendicular to the first heat discharging groove 112. The third heat discharging groove 113 is concavely provided on the side of the case where the first heat discharging groove 112 is provided, and the third heat discharging groove 113 is extended in a direction perpendicular to the first heat discharging groove 112. The second heat discharging groove 111 and the third heat discharging groove 113 are provided to convect and radiate heat in a vertical direction. So, through all convecting, giving off the heat in plug direction and with plug direction vertically orientation, improved the radiating effect of circuit breaker effectively, guaranteed that the heat of circuit breaker can in time and discharge out effectively to avoided the heat gathering in the product, lead to the inside high temperature of circuit breaker, and then influence the components and parts of circuit breaker, can also avoid the circuit breaker to take place the tripping operation, guaranteed product and operating personnel's safety.

Optionally, a first window 114 is further disposed on a side surface where the first heat removal groove 112 is located, the first window 114 is opened at a groove bottom of the first heat removal groove 112, and components of the circuit breaker disposed in the housing dissipate heat through the first window 114. Specifically, heat dissipated by the components in the housing 1 flows out to the first heat dissipation groove 112 through the first window 114, and then flows along the first heat dissipation groove 112, the second heat dissipation groove 111, and the third heat dissipation groove 113, so that a heat dissipation effect on the components is achieved.

Optionally, the first window 114 is provided in plurality to ensure the heat dissipation strength of the component. The plurality of first windows 114 are uniformly arranged in the middle of the side surface where the first heat-removal groove 112 is located, so that the components arranged at the whole position of the shell can be ensured to be subjected to targeted heat dissipation, and the heat dissipation effect and the heat dissipation uniformity are improved.

Optionally, the first heat discharging groove 112 penetrates through two ends of the side surface where the width and the length direction of the housing are located, so that the length of the first heat discharging groove 112 can be longest, and the heat dissipation effect is improved.

Optionally, the second heat discharging groove 111 penetrates through two ends of the side where the height direction and the length direction of the housing are located, so that the length of the second heat discharging groove 111 can be longest, and the heat dissipation effect is improved.

Optionally, the third heat discharging groove 113 is disposed through both ends of the side of the housing where the first heat discharging groove 112 is disposed, so that the length of the third heat discharging groove 113 can be longest, thereby improving a heat dissipating effect.

Optionally, the first heat dissipation grooves 112 are provided with a plurality of first heat dissipation grooves 112, and two adjacent first heat dissipation grooves 112 are arranged at the middle position of the side surface of the housing where the width and the length directions are located at the same interval, so as to improve the heat dissipation effect and ensure the heat dissipation balance.

Optionally, the third heat discharging groove 113 is communicated with the first heat discharging groove 112 and the second heat discharging groove 111, so that heat can flow and convect in the first heat discharging groove 112, the third heat discharging groove 113 and the second heat discharging groove 111, and the heat dissipation effect is improved.

Optionally, components of the circuit breaker are installed in the cavity of the housing 1, the first heat removal groove 112 is concavely formed on the side where the width direction and the length direction of the lower housing 11 are located, the second heat removal groove 111 is concavely formed on the side where the height direction and the length direction of the lower housing 11 are located, and the third heat removal groove 113 is concavely formed on the side where the first heat removal groove 112 is located of the lower housing 11.

Optionally, a fourth heat rejection slot 124, a fifth heat rejection slot 127, and a sixth heat rejection slot 125 are also included. The fourth heat discharging groove 124 is concavely arranged on the side surface where the height direction and the length direction of the upper housing 12 are located, and the fourth heat discharging groove 124 extends along the plugging direction of the circuit breaker to convect and dissipate heat in the plugging direction. The fifth heat discharging groove 127 is recessed on the side of the upper case 12 where the width direction and the length direction are located, and the fifth heat discharging groove 127 extends in the direction perpendicular to the first heat discharging groove 112. The sixth heat discharging groove 125 is concavely provided on the side of the upper case 12 where the fifth heat discharging groove 127 is located and is vertically provided with the fifth heat discharging groove 127. The fifth heat discharging groove 127 and the sixth heat discharging groove 125 are provided to convect and dissipate heat in a vertical direction.

Specifically, the peripheral side of the housing provided by this embodiment is provided with four faces, and by providing the first heat-discharging groove 112, the second heat-discharging groove 111, the third heat-discharging groove 113, the fourth heat-discharging groove 124, the fifth heat-discharging groove 127 and the sixth heat-discharging groove 125, the peripheral side of the housing 1 is provided with a heat-dissipating structure, which is beneficial to heat dissipation of the circuit breaker.

Optionally, a second window 126 is further disposed on a side surface where the fifth heat removal groove 127 is located, the second window 126 is opened at a bottom of the fifth heat removal groove 127, and components of the circuit breaker disposed in the housing 1 dissipate heat through the second window 126. Specifically, heat dissipated by the components in the housing 1 flows out to the fifth heat dissipation groove 127 through the second window 126, and then flows along the fifth heat dissipation groove 127, the sixth heat dissipation groove 125, and the fourth heat dissipation groove 124, so that convection is generated, heat dissipation is realized, and a heat dissipation effect on the components is realized.

Optionally, the second window 126 is provided in plurality to ensure the heat dissipation strength of the component. The plurality of second windows 126 are uniformly arranged in the middle of the side surface where the second heat dissipation groove 111 is located, so that the components arranged in the middle of the shell 1 are ensured to be subjected to targeted heat dissipation, and the heat dissipation effect and the heat dissipation uniformity are improved.

Optionally, the fifth heat discharging groove 127 is disposed through two ends of the side surface where the width and length directions of the lower housing 11 are located, so that the length of the fifth heat discharging groove 127 can be longest, thereby improving the heat dissipating effect.

Optionally, the fourth heat discharging groove 124 penetrates through two ends of the side where the height direction and the length direction of the lower housing 11 are located, so that the length of the fourth heat discharging groove 124 can be longest, and the heat dissipation effect is improved.

Alternatively, the sixth heat discharging groove 125 is formed through both ends of the side of the lower case 11 where the first heat discharging groove 112 is formed, so that the length of the sixth heat discharging groove 125 can be maximized, thereby improving the heat dissipating effect.

Optionally, the fifth heat discharging grooves 127 are provided in a plurality of numbers, and two adjacent fifth heat discharging grooves 127 are arranged at the middle position of the side surface of the housing 1 in the width and length directions at the same interval, so as to improve the heat dissipation effect and ensure the heat dissipation balance.

Optionally, the fourth heat discharge groove 124, the second heat discharge groove 111, the third heat discharge groove 113, and the sixth heat discharge groove 125 are arranged in communication, so that heat perpendicular to the plugging direction can flow along the fourth heat discharge groove 124, the second heat discharge groove 111, the third heat discharge groove 113, and the sixth heat discharge groove 125, convection is generated, and thus the heat dissipation effect is improved.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims (11)

1. A power distributor, comprising:

a chassis (400);

the power distribution pole is arranged in the case (400), and one end of the power distribution pole is electrically connected with a power supply line outside the power distributor;

the breaker comprises a plurality of breakers (300), wherein the breakers (300) are arranged in the case (400) and are arranged in a one-to-one correspondence mode with a plurality of loads arranged outside the distributor, one end of each breaker (300) is electrically connected with the distribution rod, and the other end of each breaker is electrically connected with the loads.

2. A power distributor according to claim 1, wherein the circuit breaker comprises:

a housing (1);

a circuit board (4) disposed within the housing (1);

a first wiring assembly (2) disposed within the housing (1), the first wiring assembly (2) including a first interface (21) and a first wiring board (22) electrically connected to the first interface (21), the first interface (21) being electrically connected to the distribution pole;

a second wiring assembly (3) disposed within the housing (1), the second wiring assembly (3) including a second interface (31) and second and third wiring boards (32, 33) electrically connected to the second interface (31), the second interface (31) being electrically connected to the distribution pole;

the first wiring board (22), the second wiring board (32) or the third wiring board (33) is electrically connected to the wiring board (4).

3. Distributor according to claim 2, characterized in that said distribution pole comprises a positive distribution board (501) and a negative distribution board (502), said first interface (21) being electrically connected at one end to said positive distribution board (501) and at the other end to said first terminal board (22), said second interface (31) being electrically connected at one end to said negative distribution board (502) and at the other end to said second terminal board (32).

4. Distributor according to claim 2, characterized in that said first interface (21) is arranged at a first end of said casing (1), a first end of said first terminal block (22) being electrically connected to said first interface (21) and a second end being electrically connected to a first load interface (200) of said circuit breaker, said first terminal block (22) being arranged at one side of said circuit board (4);

second interface (31) set up the first end of casing (1) and with first interface (21) is relative and the interval sets up, the first end of second wiring board (32) with second interface (31) electricity is connected, the second end with circuit board (4) electricity is connected, the first end of third wiring board (33) with circuit board (4) electricity is connected, the second end with circuit breaker's second load interface (201) electricity is connected, second wiring board (32) and third wiring board (33) all set up the opposite side of circuit board (4).

5. The power distributor according to claim 4, further comprising a first elastic terminal (51) and a second elastic terminal (52), the first elastic terminal (51) being disposed between the first load port (200) and a second end of the first wiring board (22), the second end of the first wiring board (22) abutting on a side of the first elastic terminal (51), the second elastic terminal (52) being disposed between a second load port (201) and a second end of the third wiring board (33), the second end of the second wiring board (32) abutting on a side of the second elastic terminal (52).

6. Distributor according to claim 4, characterized in that said circuit board (4) is provided with:

the electric energy metering unit is used for calculating electric quantity;

the communication unit is used for uploading the information of the circuit board (4) to a terminal platform and receiving the signal sent by the terminal platform;

the short-circuit protection unit is used for closing a main switch of the circuit breaker when the circuit breaker generates overcurrent or short circuit;

and the power supply module is used for driving the electric energy metering unit, the communication unit and the short-circuit protection unit to work.

7. Distributor according to claim 6, characterized in that said communication unit comprises a communication interface (61), said communication interface (61) being arranged at a first end of said housing (1) between said first interface (21) and said second interface (31), one end of said communication interface (61) being electrically connected to said circuit board (4), said distributor further comprising a communication connection board (600), said communication connection board (600) being arranged within said cabinet (400), the other end of said communication interface (61) being electrically connected to said communication connection board (600).

8. Distributor according to claim 6, characterized in that said circuit board (4) comprises:

the main board (42) is arranged at the bottom side of the shell (1), the communication unit, the electric energy metering unit and the over-current and short-circuit protection unit are arranged on the main board (42), and the main board (42) is also provided with an MCU;

the power panel (41) is arranged on the upper side of the mainboard (42) and is arranged in parallel with the mainboard (42), and the power module is arranged on the power panel (41).

9. Distributor according to claim 2, characterized in that the main switch of the circuit breaker is a MOS switch, further comprising a position detection structure provided in the housing (1) and extending out of the housing (1) for detecting whether the circuit breaker is mounted in place, wherein the MOS switch is closed before the circuit breaker is mounted in place and opened after the circuit breaker is mounted in place.

10. A power distributor according to any of claims 2 to 9 further comprising a heat dissipating structure provided on the housing for dissipating heat from the circuit breaker.

11. A power distributor according to claim 10 wherein the heat dissipating structure comprises;

the first heat removal groove (112) is concavely arranged on the side face where the width direction and the length direction of the shell of the circuit breaker are located, and the first heat removal groove (112) extends along the plugging direction of the circuit breaker;

the second heat discharging groove (111) is concavely arranged on the side surface of the shell where the height direction and the length direction are located, and the second heat discharging groove (111) extends along the direction vertical to the first heat discharging groove (112);

and a third heat discharging groove (113) which is concavely arranged on the side surface of the shell body provided with the first heat discharging groove (112), and the third heat discharging groove (113) extends along the direction vertical to the first heat discharging groove (112).

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