Bridge rectifier convenient for heat dissipation

Abstract

The utility model relates to the technical field of bridge rectifiers, and discloses a bridge rectifier convenient for heat dissipation, which comprises a rectifier main body and a protection block, the rectifier main body comprises a protection groove, an electrode insertion rod and a through hole, the protection groove is arranged at the bottom of the rectifier main body, and the electrode insertion rod is arranged in the protection groove. The four groups of electrode inserting rods are uniformly arranged at the four corners of the bottom of the rectifier main body, the four groups of through holes are uniformly arranged at the four corners of the top of the rectifier main body, the protection block comprises heat conduction connecting rods, cooling fins and empty grooves, and the four groups of heat conduction connecting rods are uniformly arranged at the four corners of the bottom of the protection block. The protection block and the multiple sets of cooling fins can be connected with the rectifier body through the heat conduction connecting rod, the protection block can prevent high temperature of the cooling fins from damaging other devices, the impeller can be driven to rotate through the micro motor and the rotating shaft, heat on the cooling fins can be rapidly extracted out, and the cooling effect is good. The bridge rectifier is prevented from being damaged by high temperature, and the service life of the bridge rectifier is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge rectifiers, in particular to a bridge rectifier which is convenient for heat dissipation. Background Art

[0002] A bridge rectifier consists of four rectifier silicon chips connected in a bridge configuration and encapsulated in insulating plastic. Bridge rectifiers come in many shapes, including flat, round, square, and bench-shaped. They come in GPP and O / J configurations. Their maximum rectifier current ranges from 0.5A to 100A, and their maximum reverse peak voltage ranges from 50V to 1600V.

[0003] Application number CN202222403173.0 discloses a bridge rectifier that is easy to dissipate heat, including a housing, a housing cover, a heat sink, a rectifier assembly, an electrode rod, and a fixing mechanism. The rectifier assembly is detachably mounted in the housing... The snap-in slot is provided on the top inner wall of the housing. The utility model belongs to the technical field of rectifiers, specifically a bridge rectifier that can dissipate heat from the internal components of the bridge rectifier, is easy to install and disassemble, and is easy to use. This type of bridge rectifier dissipates heat only through natural ventilation through the heat sink, which has a poor heat dissipation effect on the bridge rectifier and cannot quickly dissipate heat from the bridge rectifier. Failure to dissipate heat in a timely manner can easily damage the bridge rectifier, shortening its service life. Utility Model Content

[0004] The purpose of the present invention is to provide a bridge rectifier that is convenient for heat dissipation, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bridge rectifier that is convenient for heat dissipation, comprising a rectifier body and a protective block, the rectifier body comprising a protective groove, an electrode plug rod and a through hole, the protective groove being opened at the bottom of the rectifier body, four groups of the electrode plug rods being evenly arranged at the four corners of the bottom of the rectifier body, four groups of the through holes being evenly arranged at the four corners of the top of the rectifier body, the protective block comprising a heat-conducting connecting rod, a heat sink and an empty slot, the four groups of the heat-conducting connecting rods being evenly arranged at the four corners of the bottom of the protective block, the heat sink being arranged below the protective block, and the empty slot being arranged at the middle position between the protective block and the heat sink.

[0006] Preferably, a mounting cylinder is provided inside the empty slot above the top of the rectifier body, and a plurality of fixing bars are provided at the top end of the outer side of the mounting cylinder.

[0007] Preferably, an installation chamber is provided inside the installation cylinder, a micro motor is installed at the bottom end of the installation chamber, an output end of the micro motor is connected to a rotating shaft, and an impeller is provided at the bottom end of the rotating shaft.

[0008] Preferably, the rectifier body is composed of a rectifier assembly and a shell, and the top end of the electrode rod is connected to the rectifier assembly.

[0009] Preferably, the bottom end of the heat-conducting connecting rod passes through the interior of the rectifier body through a through hole, and the bottom end of the heat-conducting connecting rod is welded to the rectifier assembly.

[0010] Preferably, the bottom end of the protection block is welded to the top end of the heat-conducting connecting rod, and the protection block is fixedly connected to the rectifier assembly via the heat-conducting connecting rod.

[0011] Preferably, fixing holes are provided at the four corners inside the heat sink, and the heat sink is fixedly connected to the heat-conducting connecting rod through the fixing holes.

[0012] Preferably, one end of the fixing bar is welded to the protection block, and the mounting tube is fixedly connected to the protection block via the fixing bar.

[0013] Preferably, the micro motor is detachably connected to the mounting barrel via a fixing bolt, and the impeller is transmission-connected to the micro motor via a rotating shaft.

[0014] Preferably, a connecting block is provided at the bottom end of the impeller, and the bottom end of the rotating shaft is connected to the connecting block, and the impeller is detachably connected to the rotating shaft through the connecting block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model can connect the protection block and multiple groups of heat sinks with the rectifier body through the heat-conducting connecting rod. The protection block can prevent the high temperature of the heat sink from damaging other equipment. The micro motor and the rotating shaft can drive the impeller to rotate and quickly extract the heat from the heat sink, thereby preventing the high temperature from damaging the bridge rectifier and improving the service life of the bridge rectifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without inventive effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0020] Figure 3 It is a cross-sectional view of the present invention.

[0021] In the figure: 1. Rectifier body; 101. Protection groove; 102. Electrode plug rod; 103. Through hole; 2. Protection block; 201. Thermal connecting rod; 202. Heat sink; 203. Empty slot; 3. Mounting cylinder; 301. Fixing bar; 302. Mounting compartment; 303. Micro motor; 304. Rotating shaft; 305. Impeller. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-3, the utility model provides an embodiment of a bridge rectifier that is easy to dissipate heat: a bridge rectifier that is easy to dissipate heat, including a rectifier body 1 and a protective block 2, the rectifier body 1 includes a protective groove 101, an electrode plug rod 102 and a through hole 103, the protective groove 101 is opened with the bottom of the rectifier body 1, and has a fitting effect, so as to facilitate the flat installation of the bridge rectifier, four groups of electrode plug rods 102 are evenly arranged at the four corners of the bottom of the rectifier body 1, which is convenient for the installation and use of the bridge rectifier, and four groups of through holes 103 are evenly arranged at the four corners of the top of the rectifier body 1, the protective block 2 includes a thermally conductive connecting rod 201, a heat sink 202 and an empty groove 203, the four groups of thermally conductive connecting rods 201 are evenly arranged at the four corners of the bottom of the protective block 2, which is convenient for rapid heat dissipation of the rectifier body 1, the heat sink 202 is arranged below the protective block 2, and the empty groove 203 is arranged at the middle position inside the protective block 2 and the heat sink 202.

[0027] Please refer to Figure 2 and Figure 3 A mounting cylinder 3 is provided inside the empty slot 203 above the top of the rectifier body 1, and a plurality of fixing bars 301 are provided on the top of the outer side of the mounting cylinder 3. The fixing bars 301 can be used to fix the mounting cylinder 3 and the protective block 2. A mounting chamber 302 is provided inside the mounting cylinder 3, and a micro motor 303 is installed at the bottom end of the mounting chamber 302. The micro motor 303 can be installed inside the mounting cylinder 3 through the mounting chamber 302. The output end of the micro motor 303 is connected to the rotating shaft 304, and the bottom end of the rotating shaft 304 is provided with an impeller 305. The impeller 305 can be driven to rotate by the micro motor 303 and the rotating shaft 304, so as to quickly dissipate heat from the bridge rectifier.

[0028] Please refer to Figure 1 and Figure 3 The rectifier body 1 is composed of a rectifier assembly and a shell. The top of the electrode plug rod 102 is connected to the rectifier assembly, which is convenient for fixing and installing the bridge rectifier. The bottom end of the heat-conducting connecting rod 201 passes through the through hole 103 to the interior of the rectifier body 1, which is convenient for installing and using the heat-conducting connecting rod 201. The bottom end of the heat-conducting connecting rod 201 is welded to the rectifier assembly, and the bottom end of the protective block 2 is welded to the top of the heat-conducting connecting rod 201. The protective block 2 is fixedly connected to the rectifier assembly through the heat-conducting connecting rod 201. The protective block 201 can be fixedly installed through the heat-conducting connecting rod 201. The protective block 201 can prevent the high-temperature heat sink from damaging other components. There are fixing holes at the four corners of the heat sink 202. The heat sink 202 is fixedly connected to the heat-conducting connecting rod 201 through the fixing holes, so that the heat sink 202 and the heat-conducting connecting rod 201 are fixedly connected, which is convenient for dissipating heat from the bridge rectifier.

[0029] Please refer to Figure 2 and Figure 3 One end of the fixing bar 301 is welded to the protective block 2, and the mounting cylinder 3 is fixedly connected to the protective block 2 through the fixing bar 301. The mounting cylinder 3 and the protective block 2 can be fixedly installed through the fixing bar 301. The micro motor 303 is detachably connected to the mounting cylinder 3 through a fixing bolt, so that the micro motor 303 can be installed inside the mounting cylinder 3. The impeller 305 is transmission-connected to the micro motor 303 through the rotating shaft 304. The impeller 305 can be driven to rotate by the micro motor 303 and the rotating shaft 304, which is convenient for quickly dissipating heat from the bridge rectifier. A connecting block is provided at the bottom end of the impeller 305, and the bottom end of the rotating shaft 304 is connected to the connecting block. The impeller 305 is detachably connected to the rotating shaft 304 through the connecting block, so as to connect the impeller 305 and the rotating shaft 304.

[0030] Working principle: When the utility model is in use, the electrode plug rod 102 is connected to the circuit board to fix the bridge rectifier, the protective block 2 and the heat sink 202 can be connected to the rectifier body 1 through the heat-conducting connecting rod 201, and the mounting tube 3 and the protective block 2 can be fixed through the fixing bar 301. The protective block 2 can prevent the heat sink 202 from causing damage to other components. The micro motor 303 can drive the rotating shaft 304 to rotate, and the rotating rotating shaft 304 can drive the impeller 305 to rotate. The rotation of the impeller 305 generates suction, which can draw outside air between the heat sink 202, take away the heat of the heat sink 202, and discharge the heat through the empty slot 203 on the top of the protective block 2, so as to quickly dissipate the heat of the bridge rectifier, avoid damage to the bridge circuit breaker caused by high temperature, and improve the service life of the bridge circuit breaker.

[0031] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A bridge rectifier for facilitating heat dissipation, characterized in that: include A rectifier body (1), the rectifier body (1) comprising a protective groove (101), an electrode plug rod (102) and a through hole (103), the protective groove (101) being opened at the bottom of the rectifier body (1), four groups of the electrode plug rods (102) being evenly arranged at the four corners of the bottom of the rectifier body (1), and four groups of the through holes (103) being evenly arranged at the four corners of the top of the rectifier body (1); A protective block (2), the protective block (2) comprising a heat-conducting connecting rod (201), a heat sink (202) and an empty slot (203), four groups of the heat-conducting connecting rods (201) being evenly arranged at the four corners of the bottom of the protective block (2), the heat sink (202) being arranged below the protective block (2), and the empty slot (203) being arranged at a middle position inside the protective block (2) and the heat sink (202).

2. The bridge rectifier for facilitating heat dissipation according to claim 1, characterized in that: A mounting cylinder (3) is provided inside the empty slot (203) above the top of the rectifier body (1), and a plurality of fixing bars (301) are provided at the top end of the outer side of the mounting cylinder (3).

3. The bridge rectifier for facilitating heat dissipation according to claim 2, characterized in that: An installation chamber (302) is provided inside the installation cylinder (3), a micro motor (303) is installed at the bottom end of the installation chamber (302), an output end of the micro motor (303) is connected to a rotating shaft (304), and an impeller (305) is provided at the bottom end of the rotating shaft (304).

4. The bridge rectifier for facilitating heat dissipation according to claim 1, characterized in that: The rectifier body (1) consists of a rectifier assembly and a shell, and the top end of the electrode rod (102) is connected to the rectifier assembly.

5. The bridge rectifier for facilitating heat dissipation according to claim 4, characterized in that: The bottom end of the heat-conducting connecting rod (201) passes through the through hole (103) to the interior of the rectifier body (1), and the bottom end of the heat-conducting connecting rod (201) is welded to the rectifier assembly.

6. The bridge rectifier for facilitating heat dissipation according to claim 4, characterized in that: The bottom end of the protection block (2) is welded to the top end of the heat-conducting connecting rod (201), and the protection block (2) is fixedly connected to the rectifier assembly via the heat-conducting connecting rod (201).

7. The bridge rectifier for facilitating heat dissipation according to claim 1, characterized in that: Fixing holes are provided at the four corners inside the heat sink (202), and the heat sink (202) is fixedly connected to the heat-conducting connecting rod (201) through the fixing holes.

8. The bridge rectifier for facilitating heat dissipation according to claim 2, characterized in that: One end of the fixing strip (301) is welded to the protection block (2), and the mounting tube (3) is fixedly connected to the protection block (2) via the fixing strip (301).

9. The bridge rectifier for facilitating heat dissipation according to claim 3, characterized in that: The micro motor (303) is detachably connected to the mounting cylinder (3) via a fixing bolt, and the impeller (305) is transmission-connected to the micro motor (303) via a rotating shaft (304).

10. The bridge rectifier for facilitating heat dissipation according to claim 3, characterized in that: A connecting block is provided at the bottom end of the impeller (305), and the bottom end of the rotating shaft (304) is connected to the connecting block. The impeller (305) is detachably connected to the rotating shaft (304) via the connecting block.

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