CN222852539U - Compact filter device and electrical cabinet with heat dissipation function - Google Patents

Abstract

The utility model discloses a compact filter device with a heat dissipation function and an electric cabinet, wherein the compact filter device comprises a reactor component, a radiator, a capacitor component and a pre-charging component, a conducting bar fixing seat is fixedly arranged on one side of the upper end of the reactor component, the radiator is fixedly arranged above the conducting bar fixing seat, the capacitor component is fixedly arranged above the radiator, the pre-charging component is fixedly arranged above the capacitor component, the reactor component is electrically connected with the capacitor component through the conducting bar fixing seat and a cable, a shell is wrapped on the outer side face of the reactor component, and the shell is formed by enclosing an insulating plate. According to the compact filter device with the heat dissipation function, the shell surrounded by the insulating plate forms a chimney effect and enables hot air flow to flow upwards, the heat dissipation device is matched with the radiator to achieve efficient heat dissipation, the components are arranged in a stacked mode to enable the internal structure to be compact, and the compact filter device is high in heat dissipation performance and can be assembled in a small-size cabinet body.

Description

Compact filter device with heat dissipation function and electric cabinet

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a compact filter device with a heat dissipation function and an electrical cabinet.

Background

The electric products such as the double-inductance filter have compact arrangement space and larger heating value due to the working characteristics. In the prior art, electric products such as a double-inductance filter and the like are arranged in a shell with larger external dimensions, so that the heat dissipation capacity is improved by enlarging an external heat dissipation space, however, the large external dimensions of the shell necessarily require a large cabinet body to place the electric products, the purpose of compact design cannot be achieved, and the electric cabinet with large occupied area is required to be used, so that the space utilization efficiency is influenced. Therefore, the dual inductor filter device in the prior art method has the problem of not compact arrangement structure.

Disclosure of utility model

The embodiment of the utility model provides a compact filter device with a heat dissipation function and an electrical cabinet, and aims to solve the problem that a double-inductance filter device in the prior art is not compact in arrangement structure.

In a first aspect, an embodiment of the present utility model provides a compact filter device with a heat dissipation function, including a reactor assembly, a heat sink, a capacitor assembly, and a precharge assembly;

The capacitor device comprises a capacitor component, a conductor bar fixing seat, a shell, a capacitor component, a pre-charging component, a conductor bar, a shell and an insulating plate, wherein the conductor bar fixing seat is fixedly arranged on one side of the upper end of the capacitor component;

the bottom end of the reactor component is provided with a supporting seat, and at least one vertical air channel is formed in the shell;

The low-temperature air flows in from the middle cavity of the supporting seat and sequentially flows through the vertical air duct, the radiator, the capacitor component and the pre-charging component and then is discharged upwards.

In a second aspect, an embodiment of the present utility model provides an electrical cabinet, where the electrical cabinet includes a cabinet body and the compact filter device with heat dissipation function of the first aspect, the compact filter device with heat dissipation function is disposed in the cabinet body;

The reactor component, the capacitor component, the pre-charging component and the inner side wall of the cabinet body are fixedly connected through side beams;

The novel cabinet is characterized in that a cabinet body through hole is formed in a position, opposite to the supporting seat, of the cabinet body, a top surface through hole is formed in the top surface of the cabinet body, a top cover is arranged above the top surface of the cabinet body, the top cover is fixedly connected with the top surface of the cabinet body through a coaming, and an exhaust hole is formed in the coaming.

According to the technical scheme, the compact filter device with the heat dissipation function and the electric cabinet comprise a reactor component, a radiator, a capacitor component and a pre-charging component, wherein a conducting bar fixing seat is fixedly arranged on one side of the upper end of the reactor component, the radiator is fixedly arranged above the conducting bar fixing seat, the capacitor component is fixedly arranged above the radiator, the pre-charging component is fixedly arranged above the capacitor component, the reactor component is electrically connected with the capacitor component through the conducting bar fixing seat and a cable, the outer side face of the reactor component is wrapped with a shell, and the shell is surrounded by an insulating plate. According to the compact filter device with the heat dissipation function, the shell surrounded by the insulating plates forms a chimney effect and enables hot air flow to flow upwards, the heat dissipation device is matched with the radiator to achieve efficient heat dissipation, the components are arranged in a stacked mode to enable the internal structure to be compact, the space utilization efficiency is improved, and the compact filter device is high in heat dissipation performance and can be assembled in a cabinet body with a small size.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an overall structure diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 2 is another overall structure diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 3 is a partial block diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 4 is another partial structure diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 5 is a schematic diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of still another part of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 7 is a diagram showing a structure of a compact filter device with heat dissipation function according to an embodiment of the present utility model;

Fig. 8 is an electrical connection structure diagram of a compact filter device with heat dissipation function according to an embodiment of the present utility model.

The device comprises the following components of 11, a shell, 12, a reactor component, 13, a radiator, 14, a capacitor component, 15, a pre-charging component, 21, a conductive bar fixing seat, 22, a cable, 23, a side beam, 24, a supporting seat, 131, an outer rotor axial flow fan, 132, a water cooling heat dissipation component, 133, a honeycomb duct, 135, a heat conducting fin, KM2, a relay, MU21, a voltage detection chip, PT, a temperature sensitive resistor, 134, a mounting substrate, 1341, a top plate, 1342, a side plate, 241, a connecting plate, 242, a supporting plate, 30, a cabinet body, 31, a top cover, 32, a coaming, 33, an exhaust hole, 25 and a copper bar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the problem of the prior art that the dual-inductance filter device is not compact in arrangement structure, the embodiment of the utility model provides a compact filter device with a heat dissipation function. Referring to fig. 1 and 2, the compact filter device with heat dissipation function comprises a reactor component 12, a radiator 13, a capacitor component 14 and a pre-charging component 15, wherein a conductive bar fixing seat 21 is fixedly arranged on one side of the upper end of the reactor component 12, the radiator 13 is fixedly arranged above the conductive bar fixing seat 21, the capacitor component 14 is fixedly arranged above the radiator 13, the pre-charging component 15 is fixedly arranged above the capacitor component 14, the reactor component 12 is electrically connected with the capacitor component 14 through the conductive bar fixing seat 21 and a cable 22, a shell 11 is wrapped on the outer side of the reactor component 12, the shell 11 is formed by enclosing an insulating plate, a supporting seat 24 is arranged at the bottom end of the reactor component 12, at least one vertical air duct is formed inside the shell 11, and low-temperature air flows into and sequentially flows through the vertical air duct, the radiator 13, the capacitor component 14 and the pre-charging component 15 through a middle cavity of the supporting seat 24 and then is discharged upwards.

Each component is arranged in a laminated manner in a compact space, the radiator 13 is arranged between the conducting bar fixing seat 21 and the capacitor component 14, the reactor component 12 and the capacitor component 14 are electrically connected through the conducting bar fixing seat 21 and the cable 22, and the electric component (the electric component with high power density comprises the reactor component 12, the capacitor component 14, the pre-charging component 15 and the like) which can be applied to high power density through forced cooling of the radiator 13 in the compact space is realized through a novel structural design. The compact filter device with the structure is easy to process and manufacture, is easy to guarantee and can improve the use reliability. Wherein the reactor assembly 12 is a dual inductance filter reactor.

Through range upon range of setting up reactor subassembly 12, radiator 13, capacitor module 14, precharge assembly 15, compact filter device wholly is vertical thin high form to satisfy the application demand that small-size carries out compact installation in the electrical cabinet, with the holistic power density of improvement electrical cabinet, save area.

The lower end of the reactor component 12 is provided with the supporting seat 24, so that the bottom surface of the reactor component 12 is hollowed out, and the reactor component 12 supports front-back and left-right exchange of incoming and outgoing lines, so that the use requirements of various scenes (such as installation of the cabinet body 30 by a wall) can be met, and the maintenance of a compact filter device in an electrical cabinet in the later stage is facilitated. Meanwhile, the bottom surface of the reactor component 12 allows the alternating current bus to pass through, so that the space utilization efficiency is improved, and a plurality of copper bars 25 are arranged on the lower side of the reactor component 12 and are used for being electrically connected with the alternating current bus.

The periphery of the reactor component is surrounded by the insulating plates to form the shell 11, so that a chimney effect can be formed in the shell 11, and hot air flows upwards spontaneously, thereby being beneficial to heat dissipation. Meanwhile, the insulating plate can also improve the IP protection level of the cabinet 30 and prevent electromagnetic waves from radiating to the outside of the housing 11.

Placing the precharge assembly 15 on top reduces damage to devices such as capacitors as they generate heat while facilitating heat dissipation from the device. As shown in fig. 3, the conductive bar fixing seat 21 is arranged on the upper end of the reactor component 12 (the conductive bar fixing seat 21 is arranged on the upper end of the reactor component) and is electrically connected with the capacitor component 14 through the cable 22, so that the length of the cable 22 between the reactor component 12 and the capacitor component 14 is shortened, meanwhile, the reactor component 12 and the capacitor component 14 are connected in series for heat dissipation, and the application effect of the capacitor component 14 is improved.

In a more specific embodiment, the radiator 13 is an outer rotor axial flow fan 131. Or, the radiator 13 includes an outer rotor axial flow fan 131 and a water cooling assembly 132, the water cooling assembly 132 includes a plurality of heat conducting fins 135 arranged in parallel, a flow guiding pipe 133 extends from a flow guiding inlet to a flow guiding outlet and sequentially penetrates through each heat conducting fin 135, the flow guiding pipe 133 forms a fluid loop between the flow guiding inlet and the flow guiding outlet, and the water cooling assembly 132 is arranged below the outer rotor axial flow fan 131.

Specifically, the radiator 13 may be an external rotor axial flow fan 131 as shown in fig. 4, and the fan may draw out the lower air upward, so as to form an air flow in the vertical direction to cool the reactor assembly 12, the capacitor assembly 14 and the precharge assembly 15 disposed inside the casing.

As shown in fig. 6 and 7, the outer rotor axial flow fan 131 and the water cooling module 132 may be combined as the radiator 13, and the air cooling and the water cooling may be combined to transfer heat of the compact filter device, thereby reducing the temperature of the reactor module 12. The water cooling assembly 132 includes a plurality of heat conducting fins 135 arranged in parallel, and for enhancing the use effect, the heat conducting fins 135 may be arranged vertically, so that gaps between adjacent heat conducting fins 135 may conduct the air flow, thereby improving the air flow speed and improving the heat dissipation effect of the water cooling assembly 132. The flow guiding inlet is used for inputting the refrigerant, the flow guiding outlet is used for outputting the refrigerant, and the refrigerant can be water. Through combining the outer rotor axial flow fan 131 with the water cooling assembly 132, the outer rotor axial flow fan 131 is started and enables airflow to circulate, the circulated air exchanges heat with the heat conducting fins 135 to take away heat, and meanwhile, the refrigerant circulated in the flow guiding pipe 133 exchanges heat with the heat conducting fins 135 to take away heat, so that the heat dissipation efficiency of the radiator 13 is further improved.

More specifically, as shown in fig. 8, the compact filter device further includes a relay KM2, a voltage detection chip MU21 disposed in the pre-charging assembly 15, and a temperature-sensitive resistor PT disposed in the reactor assembly 12, wherein the temperature-sensitive resistor PT is disposed in at least one middle phase line of the reactor assembly 12, two ends of each temperature-sensitive resistor PT are respectively electrically connected with the voltage detection chip MU21, two control connection ends of the voltage detection chip MU21 are respectively connected with an ac phase line and one control end of the relay KM2, the other control end of the relay KM2 is connected with an ac zero line, and a control switch of the relay KM2 simultaneously performs on-off control on the electrical connection between the ac phase line and the ac zero line and two voltage input ends of the outer rotor axial flow fan 131. Specifically, the two intermediate phase lines of the reactor component 12 are respectively embedded with one temperature-sensitive resistor PT.

The temperature of the intermediate phase line, which may be the L1 phase line and the L2 phase line as shown in fig. 8, may be sensed by the temperature sensitive resistor PT. When the voltage detection chip MU21 detects that the voltage variation value of any temperature-sensitive resistor PT corresponding to the channel exceeds a preset voltage value, a control instruction is sent to enable the relay KM2 to be conducted, at the moment, a control switch of the relay KM2 is used for connecting an alternating-current phase line with one voltage input end of the outer rotor axial flow fan 131, and simultaneously connecting an alternating-current zero line with the other voltage input end of the outer rotor axial flow fan 131, at the moment, the outer rotor axial flow fan 131 is electrified and starts to work.

The T end and the R end of the precharge component 15 are all connected with the incoming line end of the T0 incoming line breaker, and the T end, the S end, and the R end of the reactor component 12 are all connected with the outgoing line end of the T0 incoming line breaker. The W terminal, V terminal, and U terminal of the reactor assembly 12 are voltage-output terminals of the three-phase power. The alternating-current phase line corresponds to the ACH end, and the alternating-current zero line corresponds to the ACL end.

The radiator 13 is arranged to reduce the temperature of the conductive wires in the reactor component 12, so that the oxidation of the lap joint parts among the conductive wires is avoided, the conductive wires in the reactor component are maintained in the normal mechanical strength range, the phenomenon of annealing of the conductive wires caused by overhigh temperature is prevented, and the safety and reliability of the operation of equipment are effectively improved.

In a more specific embodiment, the heat sink 13 is fixedly disposed on the mounting substrate 134, the mounting substrate 134 includes a top plate 1341 and side plates 1342 fixedly connected to two sides of the top plate 1341, the top plate 1341 is provided with ventilation holes, and the side plates 1342 horizontally slide along two sides of the top surface of the reactor assembly 12 and then abut against the conductive bar fixing seats 21.

Specifically, the heat sink 13 may be fixed on the mounting substrate 134, and the side plates 1342 of the mounting substrate 134 may slide horizontally along two sides of the top surface of the reactor assembly 12, as shown in fig. 5, and when the mounting substrate 134 slides on the side of the conductive bar fixing base 21, it may abut against the conductive bar fixing base 21. When the heat sink 13 needs to be overhauled, the mounting substrate 134 can be pulled out, and at this time, the mounting substrate 134 slides to a side far away from the conductive bar fixing seat 21. Thereby facilitating the whole extraction of the radiator 13 for front maintenance in the application scenario of the cabinet 30 against the wall.

In a more specific embodiment, the support base 24 includes at least two connection plates 241 horizontally arranged along a first direction and at least two support plates 242 horizontally arranged along a second direction, the first direction is perpendicular to the second direction, the connection plates 241 are fixedly connected with the bottom end of the reactor assembly 12, the support plates 242 are respectively arranged below the connection plates 241 and are fixedly connected with the connection plates 241, and the gaps between the connection plates 241 and the gaps between the support plates 242 are combined to form a middle cavity of the support base 24. Wherein the height of the supporting seat 24 is 10-35cm.

In order to further improve the supporting performance of the supporting seat 24, the supporting seat 24 may be composed of a supporting plate 242 and a connecting plate 241, and in this embodiment, two connecting plates 241 and two supporting plates 242 are provided, and the specific structure is shown in fig. 3. The gaps between the connection plates 241 and the support plates 242 are combined into a central cavity of the support base 24, which can be used for upward gas circulation, and is also convenient for the ac bus to pass through. In particular, the height of the support seat 24 may be set to 10-35cm, preferably 15-25cm.

The embodiment of the application also discloses an electrical cabinet, which comprises a cabinet body 30 and the compact filter device with the heat dissipation function of the first aspect, wherein the compact filter device with the heat dissipation function is arranged in the cabinet body 30, the reactor component 12, the capacitor component 14 and the pre-charging component 15 are fixedly connected with the inner side wall of the cabinet body 30 through side beams 23, cabinet through holes are formed in the position, opposite to the supporting seat 24, of the cabinet body 30, a top surface through hole is formed in the top surface of the cabinet body 30, a top cover 31 is arranged above the top surface of the cabinet body 30, the top cover 31 is fixedly connected with the top surface of the cabinet body 30 through a coaming 32, and an exhaust hole 33 is formed in the coaming 32.

The side of the cabinet 30 is provided with a cabinet through hole, and the coaming 32 is provided with an exhaust hole 33, thereby being more beneficial to gas circulation. The reactor component 12, the capacitor component 14, the pre-charging component 15 and the inner side wall of the cabinet body 30 are fixedly connected through the side beams 23, so that the mutual contact between the components is avoided, and the components are stacked, so that the structure is more compact.

In a more specific embodiment, the cabinet 30 has a rectangular parallelepiped structure, and the length and the width of the cabinet 30 are equal and are not greater than 0.6 meter. Specifically, the compact filter device can be assembled in an electrical cabinet with the width and the length of 0.6 meter, and the electrical cabinet is of a cuboid structure as a whole.

The utility model provides a compact filter device with a heat dissipation function and an electric cabinet, wherein the compact filter device comprises a reactor component 12, a radiator 13, a capacitor component 14 and a pre-charging component 15, a conductive bar fixing seat 21 is fixedly arranged on one side of the upper end of the reactor component 12, the radiator 13 is fixedly arranged above the conductive bar fixing seat 21, the capacitor component 14 is fixedly arranged above the radiator 13, the pre-charging component 15 is fixedly arranged above the capacitor component 14, the reactor component 12 is electrically connected with the capacitor component 14 through the conductive bar fixing seat 21 and a cable 22, a shell 11 is wrapped on the outer side of the reactor component 12, and the shell 11 is formed by encircling an insulating plate. The compact filter device with heat dissipation function has the advantages that the shell 11 surrounded by the insulating plates forms a chimney effect and enables hot air flow to flow upwards, the heat dissipation is realized efficiently by matching with the use of the heat sink 13, the internal structure is compact by stacking all components, the space utilization efficiency is improved, and the compact filter device has strong heat dissipation performance and can be assembled in the cabinet body 30 with smaller size.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The compact filter device with the heat dissipation function is characterized by comprising a reactor component, a heat radiator, a capacitor component and a pre-charging component;

The capacitor device comprises a capacitor component, a conductor bar fixing seat, a shell, a capacitor component, a pre-charging component, a conductor bar, a shell and an insulating plate, wherein the conductor bar fixing seat is fixedly arranged on one side of the upper end of the capacitor component;

the bottom end of the reactor component is provided with a supporting seat, and at least one vertical air channel is formed in the shell;

The low-temperature air flows in from the middle cavity of the supporting seat and sequentially flows through the vertical air duct, the radiator, the capacitor component and the pre-charging component and then is discharged upwards.

2. The compact filter device with heat dissipation function according to claim 1, wherein the heat sink is an outer rotor axial flow fan.

3. The compact filter device with heat dissipation function according to claim 1, wherein the heat sink comprises an outer rotor axial flow fan and a water cooling assembly;

The guide pipe extends from the guide inlet to the guide outlet and sequentially penetrates through each heat conduction fin, and a fluid loop is formed between the guide inlet and the guide outlet by the guide pipe;

the water cooling assembly is arranged below the outer rotor axial flow fan.

4. A compact filter device with heat dissipation function according to any one of claims 2-3, further comprising a relay, a voltage detection chip disposed in a pre-charge assembly, and a temperature sensitive resistor disposed in the reactor assembly;

The temperature-sensitive resistors are embedded in at least one middle phase line of the reactor component, and two ends of each temperature-sensitive resistor are respectively and electrically connected with the voltage detection chip;

The two control connection ends of the voltage detection chip are respectively connected with the alternating-current phase line and one control end of the relay, the other control end of the relay is connected with the alternating-current zero line, and the control switch of the relay is used for simultaneously controlling the on-off of the electric connection between the alternating-current phase line and the alternating-current zero line and the two voltage input ends of the outer rotor axial flow fan.

5. The compact filter device with heat dissipation according to claim 4, wherein two intermediate phase lines of the reactor assembly are each embedded with one of the temperature-sensitive resistors.

6. The compact filter device with heat dissipation function according to claim 4, wherein the heat sink is fixedly disposed on a mounting substrate, the mounting substrate comprising a top plate and side plates fixedly connected to both sides of the top plate;

The top plate is provided with vent holes, and the side plates horizontally slide along the two sides of the top surface of the reactor assembly and then are abutted to the conducting bar fixing seats.

7. The compact filter device with heat dissipation function according to claim 4, wherein the support base comprises at least two connection plates horizontally arranged along a first direction and at least two support plates horizontally arranged along a second direction, wherein the first direction is perpendicular to the second direction;

The connecting plates are fixedly connected with the bottom ends of the reactor components, and the supporting plates are arranged below the connecting plates and are fixedly connected with the connecting plates respectively;

the gaps between the connecting plates and the gaps between the supporting plates are combined into a middle cavity of the supporting seat.

8. The compact filter device with heat dissipation function as recited in claim 7, characterised in that the height of the support is 10-35cm.

9. An electrical cabinet, characterized in that the electrical cabinet comprises a cabinet body and the compact filter device with the heat dissipation function as set forth in any one of claims 1-8, wherein the compact filter device with the heat dissipation function is arranged in the cabinet body;

The reactor component, the capacitor component, the pre-charging component and the inner side wall of the cabinet body are fixedly connected through side beams;

The novel cabinet is characterized in that a cabinet body through hole is formed in a position, opposite to the supporting seat, of the cabinet body, a top surface through hole is formed in the top surface of the cabinet body, a top cover is arranged above the top surface of the cabinet body, the top cover is fixedly connected with the top surface of the cabinet body through a coaming, and an exhaust hole is formed in the coaming.

10. The electrical cabinet of claim 9, wherein the cabinet body has a rectangular parallelepiped configuration, and the cabinet body has a length equal to a width and no greater than 0.6 meters.