CN218243319U

CN218243319U - Internal short-circuit protection device of power module

Info

Publication number: CN218243319U
Application number: CN202221869972.0U
Authority: CN
Inventors: 郑章杰; 刘振; 李栋; 郑红桃; 汪志刚
Original assignee: Beijing Saiweida Technology Co ltd
Current assignee: Beijing Saiweida Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-01-06
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to an inside short-circuit protection device of power module, including casing and power module body, the inside of casing is fixed with the fixed plate, the inside of casing is equipped with installation mechanism, the upper surface of casing has supported the roof, the lower fixed surface of roof has a plurality of third springs and a plurality of telescopic link, and is a plurality of the lower fixed surface of third spring has the clamp plate, the left and right sides of roof all is equipped with fixed establishment. This inside short-circuit protection device of power module, through the installation mechanism that sets up, stimulate two pull rods, drive the baffle and remove and extrude the second spring, put the power module body inside the fixed plate, the movable plate drives the hinge bar and moves down, two movable blocks of hinge bar slip mutually opposite sides and extrude first spring, loosen the pull rod, the pull rod resets, in the card income through-hole, accomplish the installation of power module body, easy operation can effectively protect power module's safety, reduces the danger of short circuit.

Description

Internal short-circuit protection device of power module

Technical Field

The utility model relates to a power module technical field specifically is an inside short-circuit protection device of power module.

Background

Power modules are power supplies that can be mounted directly on a printed circuit board and are characterized by supplying power to Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), microprocessors, memories, field Programmable Gate Arrays (FPGAs), and other digital or analog loads, and are generally referred to as load (POL) power supply systems or point-of-use power supply systems (pops).

Because of the advantages of the modular structure, the modular power supply is widely used in the communication fields of switching equipment, access equipment, mobile communication, microwave communication, optical transmission, routers and the like, and in the fields of automotive electronics, aerospace and the like, the existing power supply module has the defect of poor protection, and due to the fact that a common power supply module lacks of a protection device, the internal short circuit of the power supply module can be caused due to collision and the like in the using process of the power supply module, so that the power supply module is damaged and the use of the power supply module is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an inside short-circuit protection device of power module possesses advantages such as protectiveness is better, has solved general power module owing to lack protection device, leads to in its use, probably causes its inside short circuit owing to reasons such as collision, leads to its damage, influences the problem of use.

In order to achieve the above object, the utility model provides a following technical scheme: a power module internal short-circuit protection device comprises a shell and a power module body, wherein a fixing plate is fixed inside the shell, an installation mechanism is arranged inside the shell, the upper surface of the shell is abutted with a top plate, a plurality of third springs and a plurality of telescopic rods are fixed on the lower surface of the top plate, pressing plates are fixed on the lower surfaces of the third springs, and fixing mechanisms are arranged on the left side and the right side of the top plate;

installation mechanism is including being fixed in the dead lever between the casing inner chamber left and right sides, the external fixed surface of dead lever has two limiting plates, two first springs have been cup jointed to dead lever and surface, the surface sliding connection of dead lever has two movable blocks, the upper surface of movable block articulates there is the hinge bar, two the upper surface of hinge bar articulates there is the movable plate, installation mechanism is still including two slide bars and two first fixed blocks that are fixed in the fixed plate lower surface, the inside sliding connection of first fixed block has the pull rod that runs through and extend to the casing outside, the external fixed surface of pull rod has the baffle, the surface of pull rod has cup jointed the second spring, installation mechanism is still including being fixed in power module body lower surface and running through and extending to the base of fixed plate below.

Furthermore, the pull rod and the slide bar are both T-shaped, the movable plate is connected to the outer surface of the slide bar in a sliding mode, and the third spring is sleeved on the outer surface of the telescopic rod.

Furthermore, one side of each first spring, which is back to the back, is fixed on one side of each of the two limiting plates, and one side of each first spring, which is opposite to the first spring, is fixed on one side of each of the two moving blocks, which is back to the back.

Furthermore, one side of each second spring back to back is fixed on one side of each first fixing block, and one side of each second spring opposite is fixed on one side of each baffle back to back.

Further, the lower surface of base butt in the lower surface of movable plate recess, the through-hole has been seted up to the inside of base, pull rod sliding connection is inside the through-hole.

Further, a rubber pad is fixed on the lower surface of the pressing plate, and the lower surface of the rubber pad abuts against the upper surface of the power module body.

Further, fixed establishment is including being fixed in two second fixed blocks of the roof left and right sides, the lower fixed surface of second fixed block has articulated seat, the inside of articulated seat articulates there is the threaded rod, the surface threaded connection of threaded rod has the nut, fixed establishment is still including being fixed in two third fixed blocks of the casing left and right sides.

Furthermore, two spacing holes are formed in the opposite sides of the third fixing blocks, the spacing holes are U-shaped, and the upper surfaces of the nuts abut against the lower surfaces of the third fixing blocks.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this inside short-circuit protection device of power module, through the installation mechanism that sets up, stimulate two pull rods, drive the baffle and remove and extrude the second spring, put the power module body inside the fixed plate, the movable plate drives the hinge bar and moves down, two movable blocks of hinge bar slip mutually opposite sides and extrude first spring, loosen the pull rod, the pull rod resets, in the card income through-hole, accomplish the installation of power module body, easy operation can effectively protect power module's safety, reduces the danger of short circuit.

2. This inside short-circuit protection device of power module through the fixed establishment who sets up, puts the roof in the upper surface of casing, two rotatory threaded rods, and during the threaded rod rotated spacing hole, upwards rotatory nut accomplished the fixed of casing and roof, easy operation, can cooperate with the casing, the safety of protection power module body improves the protectiveness to the power module body.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the mounting mechanism of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: the power module comprises a shell 1, a mounting mechanism 2, a fixing rod 201, a first spring 202, a limiting plate 203, an articulated rod 204, a moving block 205, a moving plate 206, a second spring 207, a sliding rod 208, a baffle 209, a pull rod 210, a first fixing block 211, a base 212, a fixing plate 3, a top plate 4, a third spring 5, a telescopic rod 6, a pressing plate 7, a fixing mechanism 8, a second fixing block 801, an articulated seat 802, a threaded rod 803, a nut 804, a third fixing block 805 and a power module body 9.

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.

Referring to fig. 1-2, the internal short-circuit protection device of a power module in the present embodiment includes a housing 1 and a power module body 9, a fixing plate 3 is fixed inside the housing 1, an installation mechanism 2 is disposed inside the housing 1, the power module body 9 is installed through the installation mechanism 2, a top plate 4 abuts against an upper surface of the housing 1, a plurality of third springs 5 and a plurality of telescopic rods 6 are fixed on a lower surface of the top plate 4, the third springs 5 are sleeved on an outer surface of the telescopic rods 6, the telescopic rods 6 limit the third springs 5, a pressing plate 7 is fixed on lower surfaces of the third springs 5, and fixing mechanisms 8 are disposed on left and right sides of the top plate 4 and used for fixing the housing 1 and the top plate 4.

The lower surface of the pressing plate 7 is fixed with a rubber pad which has an insulating effect, and the lower surface of the rubber pad abuts against the upper surface of the power module body 9 to further fix the power module body 9.

The mounting mechanism 2 comprises a fixed rod 201 fixed between the left side and the right side of an inner cavity of the housing 1, two limiting plates 203 are fixed on the outer surface of the fixed rod 201, two first springs 202 are sleeved on the fixed rod 201 and the outer surface, two moving blocks 205 are connected to the outer surface of the fixed rod 201 in a sliding manner, the moving blocks 205 are reset through the first springs 202, hinge rods 204 are hinged on the upper surfaces of the moving blocks 205, a moving plate 206 is hinged on the upper surfaces of the hinge rods 204, the hinge rods 204 are driven by the moving plate 206 to move, the hinge rods 204 drive the moving blocks 205 to move, the mounting mechanism 2 further comprises two sliding rods 208 and two first fixing blocks 211, the two sliding rods 208 and the two first fixing blocks 211 are fixed on the lower surface of the fixed plate 3, the moving plate 206 is connected to the outer surface of the sliding rods 208 in a sliding manner, the stability of the moving plate 206 during moving is improved, a pull rod 210 is connected to the inside of the first fixing blocks 211 in a sliding manner, penetrates through and extends to the outer surface of the housing 1, the pull rod 210 and the sliding manner, a baffle 209 are both in a T-shaped manner, the outer surface of the pull rod 210 is fixed on the lower surface of the power module body 9 and extends to the lower surface of the moving plate 206, and is abutted to be convenient for driving the moving plate 206 to be mounted on the lower surface of the fixing plate 206.

It should be noted that a through hole is opened inside the base 212, and the pull rod 210 is slidably connected inside the through hole and used for fixedly mounting the base 212 and the power module body 9.

The opposite sides of the two first springs 202 are fixed to the opposite sides of the two limiting plates 203, the opposite sides of the two first springs 202 are fixed to the opposite sides of the two moving blocks 205, the moving blocks 205 are reset through the first springs 202, the moving plate 206 moves upwards, the power module body 9 is driven to move upwards, and the power module body 9 is taken out conveniently.

In addition, the opposite sides of the two second springs 207 are respectively fixed to the opposite sides of the two first fixing blocks 211, the opposite sides of the two second springs 207 are respectively fixed to the opposite sides of the two baffles 209, and the pull rod 210 is reset through the second springs 207 and is clamped into the through hole, so that the power module body 9 is installed.

In the installation mechanism 2 of this embodiment, two pull rods 210 are pulled to drive the baffle 209 to move and press the second spring 207, the power module body 9 is placed inside the fixed plate 3, the movable plate 206 drives the hinge rod 204 to move downward, the two movable blocks 205 of the hinge rod 204 slide back to back and press the first spring 202, the pull rods 210 are loosened, the pull rods 210 reset and are clamped into the through holes, and the installation of the power module body 9 is completed.

Referring to fig. 3, in order to mount the top plate 4, the fixing mechanism 8 in this embodiment includes two second fixing blocks 801 fixed to the left and right sides of the top plate 4, a hinge base 802 is fixed to a lower surface of the second fixing block 801, a threaded rod 803 is hinged inside the hinge base 802, the threaded rod 803 is convenient to rotate, a nut 804 is connected to an outer surface of the threaded rod 803 in a threaded manner, an upper surface of the nut 804 abuts against a lower surface of a third fixing block 805, the casing 1 and the top plate 4 are fixed by the nut 804, the fixing mechanism 8 further includes two third fixing blocks 805 fixed to the left and right sides of the casing 1, limiting holes are formed in opposite sides of the two third fixing blocks 805, the limiting holes are U-shaped, the threaded rod 803 is convenient to move into the third fixing blocks 805, and the casing 1 and the top plate 4 are fixed.

In the fixing mechanism 8 of this embodiment, the top plate 4 is placed on the upper surface of the housing 1, the two threaded rods 803 are rotated, the threaded rods 803 rotate in the limiting holes, and the nuts 804 are rotated upward to complete the fixing of the housing 1 and the top plate 4.

The working principle of the above embodiment is as follows:

(1) The two pull rods 210 are pulled relatively, the pull rods 210 drive the baffle 209 to move together and press the second springs 207, the power module body 9 is placed inside the shell 1, the base 212 is inserted into the fixed plate 3, the base 212 abuts against the lower surface of the groove of the moving plate 206, the moving plate 206 moves downwards along the sliding rods 208 and drives the hinge rods 204 to move downwards, the two moving blocks 205 can slide back to back on the outer surface of the fixed rod 201 in the moving process of the hinge rods 204 and press the first springs 202 in a pressing mode in the moving process, the pull rods 210 are loosened, the pull rods 210 reset under the action of the second springs 207, the pull rods 210 are clamped into through holes in the base 212, and the power module body 9 is installed.

(2) Put roof 4 in the upper surface of casing 1, the bottom of clamp plate 7 butt in the upper surface of power module body 9, and clamp plate 7 can extrude third spring 5 and telescopic link 6, and relative rotation two threaded rods 803, threaded rod 803 rotate to the inside spacing hole of third fixed block 805, and rotatory nut 804 makes progress, and when the upper surface butt of nut 804 in the lower surface of third fixed block 805, accomplish the fixed of casing 1 and roof 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inside short-circuit protection device of power module, includes casing (1) and power module body (9), its characterized in that: a fixing plate (3) is fixed inside the shell (1), an installation mechanism (2) is arranged inside the shell (1), a top plate (4) is abutted to the upper surface of the shell (1), a plurality of third springs (5) and a plurality of telescopic rods (6) are fixed on the lower surface of the top plate (4), a pressing plate (7) is fixed on the lower surfaces of the third springs (5), and fixing mechanisms (8) are arranged on the left side and the right side of the top plate (4);

installation mechanism (2) is including being fixed in dead lever (201) between the casing (1) inner chamber left and right sides, the external surface mounting of dead lever (201) has two limiting plates (203), dead lever (201) and surface cup joint two first springs (202), the surface sliding connection of dead lever (201) has two movable blocks (205), the upper surface of movable block (205) articulates there is hinge rod (204), two the upper surface of hinge rod (204) articulates there is movable plate (206), installation mechanism (2) is still including two slide bars (208) and two first fixed blocks (211) that are fixed in fixed plate (3) lower surface, the inside sliding connection of first fixed block (211) has run through and extends to casing (1) outside pull rod (210), the surface mounting of pull rod (210) has baffle (209), the surface of pull rod (210) has cup jointed second spring (207), installation mechanism (2) is still including being fixed in power module body (9) lower surface and running through and extending to base (212) of fixed plate (3) below.

2. The internal short-circuit protection device of a power module according to claim 1, wherein: the pull rod (210) and the sliding rod (208) are both T-shaped, the moving plate (206) is connected to the outer surface of the sliding rod (208) in a sliding mode, and the third spring (5) is sleeved on the outer surface of the telescopic rod (6).

3. The internal short-circuit protection device of a power module according to claim 1, wherein: one side, back to back, of each of the two first springs (202) is fixed to the opposite side of each of the two limiting plates (203), and the opposite side of each of the two first springs (202) is fixed to the back to back side of each of the two moving blocks (205).

4. The internal short-circuit protection device of power module according to claim 1, wherein: one sides, back to back, of the two second springs (207) are respectively fixed to one sides, opposite to the two first fixing blocks (211), and one sides, opposite to the two second springs (207), are respectively fixed to one sides, back to back, of the two baffles (209).

5. The internal short-circuit protection device of power module according to claim 1, wherein: the lower surface of the base (212) abuts against the lower surface of the groove of the moving plate (206), a through hole is formed in the base (212), and the pull rod (210) is connected to the inside of the through hole in a sliding mode.

6. The internal short-circuit protection device of a power module according to claim 1, wherein: the lower surface of the pressing plate (7) is fixedly provided with a rubber pad, and the lower surface of the rubber pad is abutted against the upper surface of the power module body (9).

7. The internal short-circuit protection device of a power module according to claim 1, wherein: fixed establishment (8) are including being fixed in two second fixed blocks (801) of roof (4) left and right sides, the lower fixed surface of second fixed block (801) has articulated seat (802), the inside of articulated seat (802) articulates there is threaded rod (803), the surface threaded connection of threaded rod (803) has nut (804), fixed establishment (8) are still including being fixed in two third fixed blocks (805) of casing (1) left and right sides.

8. The internal short-circuit protection device of a power module according to claim 7, wherein: and limiting holes are formed in the opposite sides of the two third fixing blocks (805), the limiting holes are U-shaped, and the upper surfaces of the nuts (804) abut against the lower surfaces of the third fixing blocks (805).