CN209692332U - A kind of electronic equipment - Google Patents

Abstract

The utility model embodiment is related to power electronic equipment field, disclose a kind of electronic equipment, it include: loading plate, the function element and electric conductor that are arranged on the loading plate, the electric conductor are electrically connected to provide voltage with the function element, it further include the varistor plate in parallel with the function element, the varistor grillage is set to above the electric conductor and is electrically connected with the electric conductor.Electronic equipment provided by the embodiment of the utility model is conducive to the miniaturization of electronic equipment.

Description

A kind of electronic equipment

Technical field

The utility model embodiment is related to power electronic equipment field, in particular to a kind of electronic equipment.

Background technique

Varistor is a kind of resistance device with nonlinear wind vibration, be mainly used for circuit bear over-voltage when into Row voltage clamping absorbs extra electric current to protect Sensitive Apparatus.The working principle of varistor are as follows: when being added on varistor Voltage when being lower than its threshold value, the electric current for flowing through it is minimum, it is equivalent to the resistance of a resistance value infinity, that is, is equivalent to The switch of one off-state；When the voltage being added on varistor is more than its threshold value, the electric current for flowing through it increases sharply, its phase When in the infinitesimal resistance of resistance value, that is, be equivalent to the switch of a closed state.It, can be with using the pressure-sensitive character of varistor Using varistor as Overvoltage suppressing element, keep it used in parallel with protected element, so as to by very high instantaneous mistake Voltage inhibits, and avoids protected element overtension and damages.

At least there are the following problems in the prior art for inventor's discovery: in the electric product of some compacts, may not have Particular space installs varistor plate, and is forced to increase electric product outer dimension, is unfavorable for the miniaturization of electronic equipment, because This, it is necessary to a kind of structure of new electronic equipment is provided to solve the above problems.

Utility model content

The utility model embodiment is designed to provide a kind of electronic equipment, is conducive to the miniaturization of electronic equipment.

In order to solve the above technical problems, the embodiments of the present invention provides a kind of electronic equipment, comprising: carrying Plate, the function element and electric conductor being arranged on the loading plate, the electric conductor are electrically connected with the function element to mention Voltage supplied, further includes the varistor plate in parallel with the function element, and the varistor grillage is set on the electric conductor The electrical connection of electric conductor described in Fang Bingyu.

The utility model embodiment in terms of existing technologies, is set on the electric conductor by varistor grillage Side is avoided " varistor plate is straight to be realized the installation of varistor plate using the space above idle electric conductor Setting electronic equipment size caused by loading plate is connect to become larger " the problem of, be conducive to the miniaturization of electronic equipment；Meanwhile again Since varistor plate is in parallel with the function element and is electrically connected with electric conductor, that is, varistor plate is in parallel with function element Node be set up directly on electric conductor, and varistor grillage is set to above the electric conductor, so as to reduce pressure-sensitive electricity Baffle-wall is used for the length of the line in parallel with function element, reduces costs.

In addition, the electric conductor is three-phase input electric conductor, the varistor plate and the three-phase input electric conductor phase Sequence is electrically connected correspondingly.

In addition, the three-phase input electric conductor is three-phase input copper bar.

In addition, the varistor plate via press copper nut column respectively with the R phase and T-phase in the three-phase input copper bar It is connected, the varistor is connected via fixed copper bar with the S phase in the three-phase input copper bar.

In addition, the varistor plate via three fixed copper bars respectively with R phase, the T-phase in the three-phase input copper bar It is connected with S phase.Since installation can be realized by screw in fixed copper bar, and resistivity is low, current-carrying capacity is big, therefore, passes through three A fixed copper bar electrical connection varistor plate and three-phase input copper bar can be improved the convenience of electronic equipment installation and reliable Property.

In addition, the fixed copper bar includes the sticking part for being fitted in three-phase input copper bar surface, from the sticking part Towards the extension of the direction bending extension far from the three-phase input copper bar and from the end of the extension, bending extends simultaneously The interconnecting piece being electrically connected with the varistor plate.

In addition, the interconnecting piece and the sticking part are located at the two sides of the extension.

Detailed description of the invention

Fig. 1 is the explosive view for the electronic equipment that the utility model first embodiment provides；

Fig. 2 is the three-dimensional structure diagram for three fixed copper bars that the utility model first embodiment provides；

Fig. 3 is the three-dimensional structure diagram for the electronic equipment that the utility model first embodiment provides；

Fig. 4 is the cross-sectional view for the electronic equipment that the utility model first embodiment provides；

Fig. 5 is the explosive view for the electronic equipment that the utility model second embodiment provides.

Specific embodiment

To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this Each embodiment of utility model is explained in detail.However, it will be understood by those skilled in the art that practical at this In novel each embodiment, many technical details are proposed in order to make reader more fully understand the utility model.But even if Without these technical details and various changes and modifications based on the following respective embodiments, the utility model also may be implemented and wanted Seek the technical solution of protection.

The first embodiment of the utility model is related to a kind of electronic equipment 100, as shown in Figure 1, Figure 2, Figure 3, Figure 4, packet Include: the function element (not shown) on loading plate 11 and electric conductor 12, electric conductor 12 and function element is arranged in loading plate 11 Electrical connection further includes the varistor plate 13 in parallel with function element, varistor plate 13 is set up in electric conductor to provide voltage 12 tops are simultaneously electrically connected with electric conductor 12.

Inventors have found that the thickness of electric conductor 12 is thinner compared to function element, cause to lead in a thickness direction The space of electric 12 top of body is idle, and the utility model embodiment in terms of existing technologies, passes through varistor plate 13 It is set up in 12 top of electric conductor, so that the installation of varistor plate 13 is realized using the space of idle 12 top of electric conductor, The problem of avoiding " varistor plate 13 is set up directly on electronic equipment 100 caused by loading plate 11 to become large-sized ", has Conducive to the miniaturization of electronic equipment 100；Meanwhile and due to varistor plate 13 is in parallel with function element and with the electricity of electric conductor 12 Connection, that is, the node in parallel with function element of varistor plate 13 is set up directly on electric conductor 12, and 13 frame of varistor plate Above electric conductor 12, so as to reduce length of the varistor plate 13 for the line in parallel with function element, reduce Cost.

Wherein, electronic equipment 100 can be frequency converter, and function element can be IGBT inversion component, certainly, this field skill Art personnel's volume is appreciated that electronic equipment 100 and function element are without being limited thereto, or other equipment and element.

Specifically, electric conductor 12 is three-phase input electric conductor, varistor plate 13 and three-phase input electric conductor phase sequence one One corresponding electrical connection, in other words, the R phase of varistor plate 13, T-phase and S phase R phase, the T-phase with input electric conductor 12 respectively It is connected with S phase.

It is electrically connected it is noted that can be arranged by harness, copper bar or aluminium with electric conductor 12, in present embodiment, three Mutually input electric conductor be three-phase input copper bar, further, varistor plate 13 via three fixed copper bars 14 respectively with three-phase R phase, the T-phase and S phase inputted in copper bar is connected, since installation can be realized by screw in fixed copper bar 14, and resistivity it is low, Current-carrying capacity is big, therefore, is electrically connected varistor plate 13 and three-phase input copper bar by three fixed copper bars 14, can be improved electronics The convenience and reliability that equipment 100 is installed, and fixed copper bar 14 has a variety of shapes and sizes, it will not be by Structural assignments Limitation, it is more flexible and convenient.

Specifically, fixed copper bar 14 includes sticking part 141, the self-bonding portion 141 for being fitted in three-phase input copper bar surface The extension 142 that extends towards the direction bending far from three-phase input copper bar and extend from the bending of the end of extension 142 and with The interconnecting piece 143 that varistor plate 13 is electrically connected.Optionally, interconnecting piece 143 and sticking part 141 are located at extension 142 Two sides, certainly, interconnecting piece 143 can also be located at the ipsilateral of extension 142 with sticking part 141.

Second embodiment of the present invention is related to a kind of electronic equipment 200, as shown in figure 5, second embodiment and first Embodiment is roughly the same, and be in place of the main distinction: in the first embodiment, varistor plate 13 is via three fixed coppers Row 14 is connected with R phase, the T-phase and S phase in three-phase input copper bar respectively.And in second embodiment of the invention, varistor Plate 13 via press copper nut column 15 respectively in three-phase input copper bar R phase and T-phase be connected, varistor is via fixed copper bar 14 are connected with the S phase in three-phase input copper bar.It is understood that the technical detail in first embodiment also can be applied to In present embodiment, also, present embodiment is similar with the technical effect of first embodiment, is not repeating herein.

Specifically, the R phase in three-phase input copper bar and T-phase using the copper nut column copper post that presses form, directly with pressure Quick resistance board 13 connects, and the S phase in three-phase input copper bar is connect by a fixed copper bar 14 with varistor plate 13, wherein The copper nut column 15 that presses is called riveting nut, and self-fastening nut, shape is rounded, and one end is with embossing tooth and guide groove, principle It is the preset hole location that metal plate is pressed by embossing tooth, it is however generally that the aperture of preset holes is slightly less than the embossing for the copper nut column 15 that presses Tooth is squeezed into plate the periphery of preset holes is made to generate plastic deformation, deformations by pressure make the to press flower tooth of copper nut column 15 It is squeezed into guide groove, to generate the effect of locking.Compared to using three fixed copper bars 14 to realize three-phase input copper bars and pressure There is cost to reduce, install the more convenient and fast advantage of varistor plate 13 for the mode that quick resistance board 13 connects, present embodiment.

It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model And range.

Claims (7)

1. a kind of electronic equipment, comprising: loading plate, the function element and electric conductor being arranged on the loading plate described are led Electric body is electrically connected with the function element to provide voltage, which is characterized in that further includes in parallel with the function element pressure-sensitive Resistance board, the varistor grillage are set to above the electric conductor and are electrically connected with the electric conductor.

2. electronic equipment according to claim 1, which is characterized in that the electric conductor is three-phase input electric conductor, described Varistor plate is electrically connected correspondingly with the three-phase input electric conductor phase sequence.

3. electronic equipment according to claim 2, which is characterized in that the three-phase input electric conductor is three-phase input copper Row.

4. electronic equipment according to claim 3, which is characterized in that the varistor plate is via the copper nut column point that presses Not in the three-phase input copper bar R phase and T-phase be connected, the varistor is via fixed copper bar and the three-phase input copper S phase in row is connected.

5. electronic equipment according to claim 3, which is characterized in that the varistor plate is via three fixed copper bars point It is not connected with R phase, the T-phase and S phase in the three-phase input copper bar.

6. according to the described in any item electronic equipments of claim 4 or 5, which is characterized in that the fixed copper bar includes being fitted in The sticking part on three-phase input copper bar surface bends extension from the sticking part towards the direction far from the three-phase input copper bar Extension and the interconnecting piece that extends and be electrically connected with the varistor plate from the bending of the end of the extension.

7. electronic equipment according to claim 6, which is characterized in that the interconnecting piece and the sticking part are located at institute State the two sides of extension.