CN203645552U - Inverter including coil - Google Patents

Abstract

The utility model discloses an inverter including a coil (10). The coil (10) is provided with a connective member which is connected to a printed circuit board (30). The shell body (1) of the inverter includes a separating wall (20) which is disposed between the printed circuit board (30) and the coil (10). A round-end contactor (15) of the coil (10) protrudes and penetrates through an opening (25) of the separating wall (20); and a cable socket (12) of the round-end contactor (15) is electrically connected to the bridge-type contactor (32) of the printed circuit board (30). The round-end contactor (15) can be screwed tightly onto the printed circuit board (30), and the cable socket (12) can be supported movably in the round-end contactor (15), so that the thermal stress which is caused by the temperature variation of the inverter can be compensated.

Description

Comprise the inverter of coil

Technical field

The utility model relates to the inverter that comprises coil.

Background technology

In the power electronic device such as such as inverter, be known that: on printed circuit board (PCB) (PCB), screw togather accordingly element, clamping element or plug connector elements and realize being electrically connected of the such as coil such as choke or transformer and printed circuit board (PCB) (PCB) by each wire of coil guided to.Because PCB in many application need to prevent dust and moistureproof and need to be exposed in the surrounding air of such pollution for cooling object coil, thus must be between PCB and coil setting example as safeguard measures such as partition walls and wire need to be guided through partition wall.Therefore, need so a kind of inverter: this inverter has degree of protection between coil and PCB, this inverter is to eliminate assembling with low cost and be easy to assembling in fault.

Utility model content

In aspect one of the present utility model, a kind of inverter comprises coil, and this coil has the connector being connected with printed circuit board (PCB).The housing of this inverter comprises the partition wall being arranged between printed circuit board (PCB) and coil, wherein, the round end contact of this coil protrudes and through the opening of this partition wall, so that the cable socket of this round end contact is electrically connected with the bridge-type contact of this printed circuit board (PCB).

Round end contact preferably includes and circumferentially encloses edge.When round end contact is during in assembling position, enclose edge and effectively seal opening.Corresponding recess can be set in partition wall to receive round end contact and to seal opening.

In one embodiment, cable socket comprises screw thread, and this screw thread is received screw in the time that cable socket is electrically connected with bridge-type contact.Screw thread round end contact is firmly held on partition wall and cable socket is provided and bridge-type contact between reliable electrical connection and mechanical connection.Can take the shape of the letter U shape have the chip-type contact of segmentation of bridge-type contact, the spacing of each chip-type contact is corresponding to the spacing of each wire of printed circuit board (PCB).In the case of not damaging the quality of electrical connection, U-shaped shape provides certain elasticity of mechanical connection.Bridge-type contact can be welded on the wire of PCB by the chip-type contact of segmentation.

In order to compensate the thermal expansion occurring in invertor operation process, cable socket is supported in round end contact movably, and can in the guide portion of round end contact, move around.For this reason, round end contact can comprise the movement of arresting lever with restriction cable socket.

Coil can be contained in cylindrical case.

Accompanying drawing explanation

With reference to accompanying drawing, the utility model is described in more detail.

Fig. 1 illustrate there is housing, the inverter structure of coil and PCB;

Fig. 2 illustrates the viewgraph of cross-section of round end contact; And

Fig. 3 illustrates round end contact and the PCB in installation constitution.

Embodiment

The inverter structure of Fig. 1 shows housing 1, and housing 1 has the one partition wall 20 that inverter case 1 is divided into two chambers.The first chamber is received printed circuit board (PCB) (PCB) 30 and can be sealed by lid (not shown).PCB30 comprises the electronic component of inverter and the bridge-type contact 32 of four U-shapeds, and bridge-type contact 32 is arranged on a side contrary with partition wall 20 of PCB30.Screw 38 is inserted in the opening 36 of bridge-type contact 32, further extends through opening in PCB30 and the opening 25 of partition wall 20, and is received by two round end contacts 15 of coil 10 of the second chamber that is arranged in inverter case 1.The coil 10 being contained in cylindrical case 11 is mechanically fixed in housing 1 and with bridge-type contact 32 and is electrically connected by means of screw 38.Each round end contact 15 uses two screws 38.Round end contact 15 covers completely or fills the respective openings 25 in partition wall 20, thereby avoids dust to be penetrated into another chamber from a chamber.In an embodiment of the present utility model, round end contact 15 extend through opening 25 and by screw 38 directly by being pressed on PCB30.In another embodiment, the size of round end contact 15 is larger than the size of opening 25, so as screw 38 by round end contact 15 by being pressed on partition wall 20.Preferably, can between partition wall 20 and PCB30, place lining (not shown), and form in this case the protuberance of round end contact 15.

In Fig. 2, show the cross section of round end contact 15.Cable socket 12 is inserted in the guide portion of round end contact 15, so that cable socket 12 can move between arresting lever 13, arresting lever 13, for cable socket 12 edge 18 that encloses around defines halt, encloses edge 18 and is configured to elastic tongue piece.The cable 14 that end is arranged on cable socket 12 is connected cable socket 12 with coil 10.Screw thread 17 in the top of cable socket 12 is configured to receive screw in the time that inverter is assembled.Can in the right part of Fig. 2, insert the second cable socket 12, but in this case overview said structure and omitted the second cable socket 12 better.

Fig. 3 shows the round end contact in assembled configuration.In screw 38 one is upper by being pressed in PCB30 securely by the screw thread of cable socket 12 17, and the electrical connection between cable socket 12 and bridge-type contact 32 is provided.Round end contact 15 extends through the opening 25 in partition wall 20.Round end contact 15 edge 16 that circumferentially encloses around seals partition wall 20.Cable socket is arranged in round end contact 15, to move, to allow, the stress being caused by thermal expansion because of the variations in temperature of inverter is compensated.

It is evident that for a person skilled in the art: in the case of the protection range being defined by the claims that does not deviate from utility model disclosed herein, disclosed technology instruction goes for other mechanical realizations and the electrical constructions such as housing, opening and the coil of round end contact, other shapes and the structure of such as different numbers.

Reference numerals list

1 inverter case

10 coils

11 shells

12 cable sockets

13 arresting levers

14 cables

15 round end contacts

16 enclose edge

17 screw threads

18 enclose edge

20 partition walls

25 openings

30 printed circuit board (PCB)s

32 bridge-type contacts

34 chip-type contacts

36 openings

38 screws

Claims (7)

1. comprise an inverter for coil (10), coil (10) has the connector being connected with printed circuit board (PCB) (30), it is characterized in that,

The housing (1) of described inverter comprises the partition wall (20) being arranged between described printed circuit board (PCB) (30) and described coil (10),

Wherein, the round end contact (15) of described coil (10) protrudes and through the opening (25) of described partition wall (20), so that the cable socket (12) of described round end contact (15) is electrically connected with the bridge-type contact (32) of described printed circuit board (PCB) (30).

2. the inverter that comprises coil (10) according to claim 1, is characterized in that,

Described round end contact (15) comprises and circumferentially encloses edge (16).

3. the inverter that comprises coil (10) according to claim 1, is characterized in that,

Described cable socket (12) comprises screw thread (17), and screw thread (17) is received screw (38) in the time that described cable socket (12) is electrically connected with described bridge-type contact (32).

4. the inverter that comprises coil (10) according to claim 3, is characterized in that,

Take the shape of the letter U shape have the chip-type contact (34) of segmentation of described bridge-type contact (32), the spacing of each chip-type contact (34) is corresponding to the spacing of each wire of described printed circuit board (PCB) (30).

5. the inverter that comprises coil (10) according to claim 1, is characterized in that,

Described cable socket (12) is supported in described round end contact (15) movably with compensate for heat expansion.

6. the inverter that comprises coil (10) according to claim 5, is characterized in that,

Described round end contact (15) comprises that arresting lever (13) is to limit the movement of described cable socket (12) in described round end contact (15).

7. the inverter that comprises coil (10) according to claim 1, is characterized in that,

Described coil (10) is contained in cylindrical case (11).

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