CN214795639U

CN214795639U - High-protection servo driver

Info

Publication number: CN214795639U
Application number: CN202120813609.6U
Authority: CN
Inventors: 闫轲; 王锁海
Original assignee: Suzhou Inovance Technology Co Ltd
Current assignee: Suzhou Inovance Technology Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-19
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a high-protection servo driver, which comprises a base, a first sealing element and a first circuit board provided with a power device; the first sealing element is in a closed ring shape, the first sealing element and the first circuit board are both installed on the base, the power device is located on the surface of one side, back to the base, of the first circuit board, and the first sealing element surrounds the first circuit board. The utility model discloses a high protection servo driver can solve current driver protection mode with high costs and use inconvenient technical problem.

Description

High-protection servo driver

Technical Field

The utility model belongs to the technical field of the driver, concretely relates to high protection servo driver.

Background

At present, the driver products on the market can be provided with the heat dissipation holes on the shell of the driver generally due to heat dissipation requirements, and in the industry with severe working environment, impurities such as dust, conductive wires and the like can enter the driver along with air flow from the heat dissipation holes, so that short circuit failure of electronic devices such as power devices in the driver is caused.

To avoid this, the existing countermeasure is to plug the heat dissipation hole or install the driver in the high-protection control cabinet. The former method obstructs the flow of air, reduces the heat dissipation capacity of the driver, causes the driver to be used in a derating way, influences the use effect and increases the use cost; the latter method has requirements on the model of the control cabinet, the control cabinet of the same model is difficult to match with drivers of different models, the replacement of the drivers is inconvenient, the manufacturing cost of the high-protection control cabinet is higher, and the material cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned shortcoming of prior art, the utility model aims at providing a high protection servo driver aims at solving current driver protection mode and is with high costs and use inconvenient technical problem.

The utility model discloses a reach its purpose, the technical scheme who adopts as follows:

a high-protection servo driver comprises a base, a first sealing element and a first circuit board provided with a power device; wherein the content of the first and second substances,

the first sealing element is in a closed ring shape, the first sealing element and the first circuit board are both mounted on the base, the power device is located on one side surface, back to the base, of the first circuit board, and the first sealing element surrounds the first circuit board.

Furthermore, the inner wall of the first sealing member has a first flange portion extending toward the power device, and a bottom surface of the first flange portion is attached to a side surface of the first circuit board facing away from the base.

Furthermore, a plurality of reinforcing ribs arranged at intervals are convexly arranged on the inner wall of the first sealing element, and the plurality of reinforcing ribs are connected with the top surface of the first flange part.

Furthermore, a barrier strip is arranged in the first sealing element; wherein the content of the first and second substances,

one end of the barrier strip is connected with the inner wall of one side of the first sealing element, and the other end of the barrier strip is connected with the inner wall of the other side of the first sealing element; the first sealing element is provided with a first mounting space and a second mounting space on two sides of the barrier strip respectively, and the first circuit board is located in the first mounting space.

Furthermore, a protruding portion is arranged on the outer side wall of the first sealing element, a positioning hole is formed in the protruding portion, a positioning column corresponding to the positioning hole is arranged on the base, and the positioning column is matched with the positioning hole.

Further, high protection servo driver is still including the second circuit board of installing binding post, the second circuit board install in on the base, just the second circuit board orientation a side surface of base with the top surface of first sealing member is laminated mutually.

Further, a second flange portion is arranged on the top surface of the first sealing element, and the second flange portion is attached to the second circuit board.

Further, the high-protection servo driver further comprises a second sealing piece matched with the wiring terminal, the second sealing piece is matched with the wiring terminal, and the wiring terminal is wrapped by the second sealing piece.

Further, the second sealing element comprises a first surrounding baffle part, a second surrounding baffle part, a third surrounding baffle part and a fourth surrounding baffle part; wherein the content of the first and second substances,

first enclose fender portion respectively with the second enclose fender portion the third encloses fender portion and is connected, just the second enclose fender portion with the third encloses fender portion and sets up relatively, the fourth enclose fender portion respectively with first enclose fender portion the second enclose fender portion the third enclose fender portion be connected and enclose and close and form the holding tank, binding post cooperate in the holding tank, just the second enclose fender portion the third enclose fender portion the fourth enclose fender portion all with the surface of second circuit board is laminated mutually.

Furthermore, the wiring terminals are arranged on the second circuit board at intervals, at least one limiting rib is arranged in the accommodating groove, the limiting rib is connected with the first surrounding blocking part and the fourth surrounding blocking part respectively, and the limiting rib is embedded between the two adjacent wiring terminals.

Furthermore, a convex edge is arranged on the surface of the connecting terminal, which is in contact with the first enclosing part, a groove is formed in the surface of the first enclosing part, which faces the connecting terminal, and the convex edge is matched with the groove.

Further, binding post is located the second circuit board orientation a side of base is surperficial, first fender portion of enclosing is dorsad binding post is provided with a plurality of boss on the surface, the spacing groove has been seted up on the boss, be equipped with on the base and correspond the spacing arch that the spacing groove set up, just spacing arch with the spacing groove cooperatees.

Further, the first sealing element is made of silica gel or rubber; and/or the second sealing element is made of silica gel or rubber.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a high protection servo driver, through setting up the first sealing member of closed loop in the inside power device installation position department of driver, and install the first circuit board that contains power device in the region that first sealing member surrounds, thus, the power device of usable closed loop on to the first circuit board carries out the omnidirectional protection, make the dust, even impurity such as conductive wire enters into the driver from the louvre inside, also can be by the separation of first sealing member and unable power device of contacting, important electronic device such as the inside power device of driver has effectively been avoided because of receiving external impurity's interference and short circuit failure. Therefore, the utility model provides a high protection servo driver has replaced traditional protection mode, need not to block up the radiating hole, also need not to join in marriage high protection switch board with adding, has reached with convenient efficient mode under the prerequisite that does not influence driver result of use and has separated the effect of removing external impurity, has saved the material cost and the use cost of equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a high-protection servo driver according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first sealing member according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a partial structure of a high-protection servo driver according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second sealing member according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a high protection servo driver according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a high-protection servo driver according to an embodiment of the present invention (including a rectifier bridge).

Description of reference numerals:

1-base, 11-positioning column, 12-limiting protrusion, 2-first sealing element, 21-first flange part, 22-reinforcing rib, 23-barrier strip, 231-first installation space, 232-second installation space, 24-protrusion part, 241-positioning hole, 25-second flange part, 3-first circuit board, 4-power device, 5-second circuit board, 6-wiring terminal, 61-rib, 7-second sealing element, 71-first surrounding part, 711-groove, 72-second surrounding part, 73-third surrounding part, 74-fourth surrounding part, 75-accommodating groove, 76-limiting rib, 77-boss, 771-limiting groove and 8-rectifying bridge.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a high protection servo driver, which includes a base 1, a first sealing member 2, and a first circuit board 3 mounted with a power device 4; wherein the content of the first and second substances,

first sealing member 2 is closed ring-shaped, and first sealing member 2 and first circuit board 3 all install on base 1, and power device 4 is located one side surface that first circuit board 3 dorsad base 1, and first sealing member 2 surrounds first circuit board 3 and sets up.

In the present embodiment, the first sealing element 2 may be in a shape of a circle, an ellipse, a rectangle, etc., which is not specifically limited in the present embodiment as long as the effect of sealing protection is achieved, and illustratively, the first sealing element 2 is in a rectangular or approximately rectangular frame-type structure. When the sealing device is specifically implemented, the first circuit board 3 can be fixedly connected to the base 1 through modes such as threaded connection and the like, the edge of the first circuit board 3 is attached to the inner wall of the first sealing element 2, and therefore the edge of the first circuit board 3 can be used for limiting the first sealing element 2. Since the power device 4 on the first circuit board 3 is located in the area surrounded by the first sealing member 2, the air-tight effect of the first sealing member 2 can be used to block impurities such as dust in the external air flow from the area surrounded by the first sealing member 2, thereby realizing shielding protection of the power device 4.

The high protection servo driver of this embodiment, through set up closed loop first sealing member 2 in the inside power device 4 installation position department of driver, and install the first circuit board 3 that contains power device 4 in the region that first sealing member 2 surrounds, so, usable closed loop first sealing member 2 carries out the omnidirectional protection to power device 4 on the first circuit board 3, make inside the dust, impurity such as conductive wire enters into the driver from the louvre, also can be by the separation of first sealing member 2 and can't contact power device 4, effectively avoided important electronic device such as power device 4 of driver inside to be short circuit inefficacy because of receiving the interference of external impurity. Compare in traditional protection mode, the high protection servo driver of this practical embodiment need not to block up the radiating hole, also need not to join in marriage high protection switch board, has reached with convenient efficient mode and has separated the effect of removing external impurity under the prerequisite that does not influence driver result of use, has saved the material cost and the use cost of equipment.

Further, referring to fig. 3 and 5, in an exemplary embodiment, the high-protection servo driver further includes a second circuit board 5 mounted with a connection terminal 6, the second circuit board 5 is mounted on the base 1, and a side surface of the second circuit board 5 facing the base 1 is attached to the top surface of the first sealing member 2. In practical implementation, the second circuit board 5 may be mounted on the base 1 by a screw connection or the like.

In the embodiment, the top of the first sealing member 2 is completely covered by the second circuit board 5, so that a closed space can be formed inside the first sealing member 2, and thus, impurities such as dust in the outside air can be better prevented from entering the area surrounded by the first sealing member 2 to cause short circuit failure of electronic devices such as the power device 4.

Further, referring to fig. 2, in an exemplary embodiment, the inner wall of the first sealing member 2 has a first flange portion 21 extending toward the power device 4, and a bottom surface of the first flange portion 21 is attached to a side surface of the first circuit board 3 facing away from the base 1.

In the present embodiment, since the first circuit board 3 has a small thickness, the reliability of limiting the first sealing member 2 by only the edge of the first circuit board 3 is low. Therefore, in the embodiment, the first flange portion 21 is arranged to increase the contact area between the first sealing element 2 and the first circuit board 3, so that the first circuit board 3 has a better limiting effect on the first sealing element 2, and the first sealing element 2 is not easy to slide relative to the first circuit board 3. Illustratively, the first flange portion 21 is preferably formed in a continuous closed loop shape along the inner wall of the first seal 2, so that the structural continuity is ensured and the overall strength of the first seal 2 can be increased to some extent. In addition, only the first flange portion 21 may be provided on the inner wall corresponding to several sides of the first seal 2.

Further, referring to fig. 2, in an exemplary embodiment, a plurality of ribs 22 are protruded from an inner wall of the first sealing member 2, and the plurality of ribs 22 are connected to a top surface of the first flange portion 21.

In this embodiment, based on the above structural design, the reinforcing rib 22 is additionally arranged on the inner wall of the first sealing element 2, so that the overall strength of the first sealing element 2 can be effectively enhanced, and it is ensured that the pressure generated by the second circuit board 5 on the top of the first sealing element 2 does not cause the side wall of the first sealing element 2 to bend and cause the deformation of the first sealing element 2 when the second circuit board 5 is subsequently installed. In practical applications, the number of the reinforcing ribs 22 may be set according to practical needs, and this embodiment is not particularly limited thereto. During specific implementation, in order to further enhance the overall strength of the first sealing element 2, the reinforcing ribs 22 extend longitudinally, the longitudinal sections of the reinforcing ribs 22 are triangular with a narrow top and a wide bottom, and the reinforcing ribs 22 are uniformly arranged at intervals.

Further, with reference to fig. 2, in an exemplary embodiment, a barrier strip 23 is provided within the first seal 2; wherein the content of the first and second substances,

one end of the barrier strip 23 is connected with the inner wall of one side of the first sealing element 2, and the other end of the barrier strip 23 is connected with the inner wall of the other side of the first sealing element 2; the first sealing member 2 is formed with a first mounting space 231 and a second mounting space 232 at both sides of the barrier strip 23, respectively, and the first circuit board 3 is positioned in the first mounting space 231.

In this embodiment, the both sides inner wall that first sealing member 2 and separation strip 23 both ends are connected respectively is relative, and separation strip 23 has the effect of further strengthening first sealing member 2 bulk strength for first sealing member 2 is more difficult for taking place to warp, guarantees simultaneously that first sealing member 2 is mutually noninterfere between two installation space that are demarcated by separation strip 23. In addition, besides the wiring terminal 6, electronic components such as the rectifier bridge 8 are also installed on the second circuit board 5, and therefore in a specific application scenario, the rectifier bridge 8 in the partitioned second installation space 232 can be used for accommodating the rectifier bridge 8 on the second circuit board 5, so that after the second circuit board 5 completely covers the top of the first sealing member 2, the electronic components such as the power device 4 and the rectifier bridge 8 can be protected by the first sealing member 2, and the situation that impurities in the outside air enter an area surrounded by the first sealing member 2 to cause short circuit failure of the power device 4 and the rectifier bridge 8 is prevented. In practical implementation, the first flange portion 21 and the bead 22 may be disposed on both side walls of the barrier rib 23.

Further, referring to fig. 1 and 2, in an exemplary embodiment, a protrusion 24 is disposed on an outer side wall of the first sealing element 2, a positioning hole 241 is disposed on the protrusion 24, a positioning column 11 corresponding to the positioning hole 241 is disposed on the base 1, and the positioning column 11 is matched with the positioning hole 241.

In this embodiment, the protruding portion 24 is disposed on the outer wall of the first sealing element 2 on the side close to the installation position of the rectifier bridge 8, and the protruding portion 24 with the positioning hole 241 is sleeved on the positioning column 11, so that the first sealing element 2 is stretched under the action of the tensile force, and the basic shape of the first sealing element 2 can be maintained while the strength of the first sealing element 2 is increased, thereby effectively avoiding the interference between the first sealing element 2 and the rectifier bridge 8 due to the deformation.

Further, referring to fig. 2 and 5, in an exemplary embodiment, a second flange portion 25 is provided on the top surface of the first sealing member 2, and the second flange portion 25 is attached to the second circuit board 5.

In this embodiment, the second circuit board 5 further limits the first sealing element 2, so that the fitting firmness of the first sealing element 2 is increased. Meanwhile, the air tightness at the top surface of the first sealing member 2 is further improved and the sealing effect is enhanced by the interference fit between the second flange portion 25 and the second circuit board 5; preferably, the width of the second flange portion 25 is narrower, so that the strength of the second flange portion 25 can be reduced, and the pressure applied by the second flange portion 25 on the second circuit board 5 can be reduced, so that the second circuit board 5 is not easy to deform, and the damage and failure of the devices on the second circuit board 5 caused by the deformation of the second circuit board 5 can be avoided.

Further, referring to fig. 3, in an exemplary embodiment, the high protection servo drive further comprises a second seal 7 fitted to the terminal 6, the second seal 7 is fitted to the terminal 6 and the second seal 7 wraps around the terminal 6.

In this embodiment, second sealing member 7 has insulating effect, and mainly used forms at binding post 6's pin department and encloses the fender barrier layer, can prevent effectively that conductive impurities such as electrically conductive dust, conductive silk in the air from piling up at binding post 6's pin root and making two adjacent pins department form conductive loop to cause binding post 6 short circuit to become invalid. Secondly, the second sealing member 7 can also prevent impurities in the outside air from entering the second circuit board 5 from the gap at the connecting terminal 6, so as to play a certain protection role for the electronic components mounted on the second circuit board 5.

Further, referring to fig. 3 and 4, in an exemplary embodiment, the second seal 7 includes a first barrier 71, a second barrier 72, a third barrier 73, and a fourth barrier 74; wherein the content of the first and second substances,

the first surrounding blocking part 71 is connected with the second surrounding blocking part 72 and the third surrounding blocking part 73 respectively, the second surrounding blocking part 72 and the third surrounding blocking part 73 are arranged oppositely, the fourth surrounding blocking part 74 is connected with the first surrounding blocking part 71, the second surrounding blocking part 72 and the third surrounding blocking part 73 respectively and surrounds to form an accommodating groove 75, the wiring terminal 6 is matched in the accommodating groove 75, and the second surrounding blocking part 72, the third surrounding blocking part 73 and the fourth surrounding blocking part 74 are attached to the surface of the second circuit board 5.

In this embodiment, enclose the holding tank 75 that closes formation by four fender portions and can form the inseparable parcel effect of omnidirectional to binding post 6, guarantee that second sealing member 7 firmly laminates on binding post 6 when being the external impurity of the all-round separation of binding post 6. In practical application, the number and combination mode of the surrounding blocking parts can be flexibly adjusted according to the number and arrangement mode of the terminals, and the method is not limited to the form of the embodiment.

Further, referring to fig. 3 and 4, in an exemplary embodiment, the plurality of wire connecting terminals 6 are disposed on the second circuit board 5 at intervals, at least one limiting rib 76 is disposed in the accommodating groove 75, the limiting rib 76 is respectively connected to the first surrounding barrier portion 71 and the fourth surrounding barrier portion 74, and the limiting rib 76 is embedded between two adjacent wire connecting terminals 6.

In this embodiment, spacing muscle 76 and two adjacent binding post 6 interference fit make second sealing member 7 and binding post 6 laminate more inseparabler through increasing area of contact, and the cooperation firmness between second sealing member 7 and the binding post 6 promotes greatly to make the second sealing member 7 that has assembled difficult the droing at the assembly of all the other devices and turnover in-process, also guaranteed simultaneously in driver working process that second sealing member 7 can not take off from binding post 6 because of the vibrations of equipment. The number and thickness of the stopper ribs 76 are determined according to the number of the terminals 6 and the gap between the terminals 6.

Further, referring to fig. 3 and 4, in an exemplary embodiment, the surface of the terminal 6 contacting the first surrounding stop 71 has a rib 61, the surface of the first surrounding stop 71 facing the terminal 6 has a groove 711, and the rib 61 is matched with the groove 711.

In the present embodiment, the rib 61 on the surface of the terminal 6 is usually designed for the structural design of the terminal 6 itself, and the groove 711 can play a role of avoiding the rib 61, so as to prevent the second sealing member 7 from arching at the rib 61.

Further, referring to fig. 4 and 5, in an exemplary embodiment, the connection terminal 6 is located on a side surface of the second circuit board 5 facing the base 1, a plurality of bosses 77 are disposed on a surface of the first shielding portion 71 facing away from the connection terminal 6, a limiting groove 771 is disposed on the bosses 77, a limiting protrusion 12 corresponding to the limiting groove 771 is disposed on the base 1, and the limiting protrusion 12 is matched with the limiting groove 771.

In this embodiment, the height of boss 77 is decided according to the distance between second sealing member 7 and the base 1 surface, spacing groove 771 and spacing arch 12 are interference fit, through the further limiting displacement of base 1 to second sealing member 7, the cooperation firmness of second sealing member 7 has been increased, make the second sealing member 7 that has assembled difficult the droing in the assembly and the turnover process of all the other devices, also guaranteed simultaneously in the driver course of operation, second sealing member 7 can not take off from binding post 6 because of the vibrations of equipment.

Further, referring to fig. 1 to 6, in an exemplary embodiment, the first sealing element 2 is made of silicone or rubber; and/or the material of the second sealing element 7 is silica gel or rubber.

In the embodiment, in specific implementation, the first sealing member 2 and the second sealing member 7 may be integrally molded by injection molding or the like, so as to reduce the production cost.

It should be noted that other contents of the high-protection servo driver disclosed in the present invention can be referred to in the prior art, and are not described herein again.

In addition, it should be noted that the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Above only be the utility model discloses an optional embodiment to not consequently restrict the utility model discloses a patent range, all be in the utility model discloses a under the design, utilize the equivalent structure transform of doing of the contents of description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A high-protection servo driver is characterized by comprising a base, a first sealing element and a first circuit board provided with a power device; wherein the content of the first and second substances,

2. The high-protection servo driver as claimed in claim 1, wherein the inner wall of the first sealing member has a first flange portion extending toward the power device, and a bottom surface of the first flange portion is attached to a side surface of the first circuit board facing away from the base.

3. The high shield servo driver of claim 2 wherein said first seal member further comprises a plurality of spaced ribs projecting from an inner wall thereof, said ribs being connected to a top surface of said first flange portion.

4. The high shield servo driver of claim 1 wherein a barrier strip is provided within the first seal; wherein the content of the first and second substances,

5. The high-protection servo driver as claimed in claim 1, wherein a protrusion is disposed on an outer sidewall of the first sealing member, a positioning hole is disposed on the protrusion, a positioning post is disposed on the base corresponding to the positioning hole, and the positioning post is engaged with the positioning hole.

6. The high-protection servo driver as claimed in any one of claims 1 to 5, further comprising a second circuit board mounted with a terminal, wherein the second circuit board is mounted on the base, and a side surface of the second circuit board facing the base is attached to the top surface of the first sealing member.

7. The high shield servo driver of claim 6 wherein a second flange portion is provided on a top surface of the first seal member, the second flange portion being attached to the second circuit board.

8. The high shield servo driver of claim 6 further comprising a second seal adapted to fit over said terminal, said second seal cooperating with said terminal and said second seal encasing said terminal.

9. The high shield servo drive of claim 8 wherein the second seal comprises a first dam, a second dam, a third dam, and a fourth dam; wherein the content of the first and second substances,

10. The servo driver of claim 9, wherein the plurality of terminals are disposed on the second circuit board at intervals, at least one limiting rib is disposed in the accommodating groove, the limiting rib is connected to the first surrounding portion and the fourth surrounding portion, and the limiting rib is engaged between two adjacent terminals.

11. The high protection servo driver of claim 10, wherein the surface of the terminal contacting the first surrounding portion has a rib, the surface of the first surrounding portion facing the terminal has a groove, and the rib is engaged with the groove.

12. The servo driver of claim 9, wherein the connecting terminal is disposed on a side surface of the second circuit board facing the base, a plurality of bosses are disposed on a surface of the first enclosing portion facing away from the connecting terminal, limiting grooves are disposed on the bosses, limiting protrusions corresponding to the limiting grooves are disposed on the base, and the limiting protrusions are matched with the limiting grooves.

13. The high-protection servo driver as claimed in any one of claims 8 to 12, wherein the first sealing member is made of silicone or rubber; and/or the second sealing element is made of silica gel or rubber.