Integrated frequency conversion speed regulation control box

Abstract

The utility model provides an integrated frequency conversion speed regulation control box, which relates to the technical field of electrical engineering, and comprises a rear cover and a front cover covering the rear cover, the front cover and the rear cover enclose to form an accommodating space for accommodating an electrical assembly, and the electrical assembly comprises a liquid crystal display, a touch panel, an adapter plate, a mainboard, a speed regulation circuit and a control circuit. A touch drive circuit and a liquid crystal drive circuit are integrated on the adapter plate, the speed regulation circuit and the control circuit are arranged on the mainboard, the touch panel is connected with the input end of the control circuit through the touch drive circuit, and the output end of the control circuit is connected with the input end of the speed regulation circuit. The output end of the speed regulation circuit is connected with the liquid crystal display through the liquid crystal driving circuit. The device effectively improves the system response speed and is high in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical engineering technical field especially relates to an integrated frequency control box. BACKGROUND

[0002] In the field of electrical engineering, frequency control technology is widely used in various driving devices. In the past, the frequency control system and the control system were independent of each other, and data interaction was carried out through communication. The delay phenomenon inevitably occurred in the communication process of the separated design, which greatly reduced the system reliability.

[0003] The frequency control circuit generates strong electromagnetic interference (EMI) when working. When the LCD liquid crystal display and the touch screen are too close to the frequency control circuit, electromagnetic interference can cause the LCD liquid crystal display to display abnormally, and the touch screen may also have problems such as touch response insensitivity and misoperation. This makes it difficult to integrate the LCD liquid crystal and the touch screen with the frequency control circuit, limits the integrated design and compact layout of the equipment, and increases the volume and cost of the equipment. SUMMARY

[0004] The utility model discloses a kind of integrated frequency control boxes, to solve the technical problem of slow response speed, low reliability in prior art.

[0005] To solve the above problems, the integrated frequency control box of the utility model relates to the following technical solutions:

[0006] The utility model provides a kind of integrated frequency control box, including back cover, cover is set on the front cover of back cover, and the front cover and back cover are enclosed and constitute the containing space of containing electrical components, and electrical components include liquid crystal display, touch panel, adapter plate, mainboard, speed regulation circuit, control circuit, adapter plate is integrated with touch drive circuit and liquid crystal drive circuit, speed regulation circuit and control circuit are respectively set on mainboard, touch panel is connected with the input end of control circuit by touch drive circuit, the input end of speed regulation circuit is connected to the output end of control circuit, and the output end of speed regulation circuit is connected with liquid crystal display by liquid crystal drive circuit.

[0007] Preferably, the outer side of the liquid crystal display and the touch panel is covered with a metal shielding shell in electrical communication with the front cover or / and the back cover, the metal shielding shell is fixed to the inner side of the front cover, and the liquid crystal display and the touch panel are located between the front cover and the metal shielding shell.

[0008] Preferably, it further includes a fixing seat and a heat sink arranged in the fixing seat, the fixing seat is arranged between the metal shielding shell and the mainboard, the fixing seat is recessed inward on the side facing the metal shielding shell, the fixing seat is covered on the outer side of the metal shielding shell, and the metal shielding shell is located in the recess.

[0009] Preferably, a plurality of relays are arranged on the main board, and a plurality of dismounting openings corresponding to positions of the relays are arranged on the rear cover.

[0010] Preferably, the fixing seat comprises a fixing base and a fixing cover arranged on the fixing base, the fixing base and the fixing cover enclose a heat dissipation space for accommodating the heat dissipation fins, a fan is arranged on the fixing base at one end of the heat dissipation fins, a through opening is arranged on the fixing base at the other end of the heat dissipation fins, and a heat dissipation hole is arranged on the fixing base at one side of the heat dissipation fins.

[0011] The utility model discloses the beneficial effects are as follows:

[0012] The utility model provides an integrated frequency conversion speed regulation control box, including rear cover, cover is arranged on the front cover of rear cover, and the front cover and rear cover enclose the containing space of containing electrical component, and the electrical component includes liquid crystal display, touch -control panel, adapter board, mainboard, speed regulation circuit, control circuit, and the adapter board has integrated touch drive circuit and liquid crystal drive circuit, reduces signal transmission link, reduces signal transmission delay, and speed regulation circuit and control circuit are arranged on the mainboard respectively, and touch -control panel is connected through touch drive circuit with the input end of control circuit, and the output end of control circuit is connected the input end of speed regulation circuit, and the output end of speed regulation circuit is connected through liquid crystal drive circuit with liquid crystal display, and liquid crystal display and touch -control panel are away from frequency conversion speed regulation circuit through adapter board, and the electromagnetic interference of frequency conversion speed regulation circuit is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the technical scheme of the utility model embodiment more clearly, the following will be briefly introduced to the drawing needed to be used in the embodiment:

[0014] Figure 1 It is the explosion map of integrated frequency conversion speed regulation control box

[0015] Figure 2 It is the whole structure schematic diagram of integrated frequency conversion speed regulation control box;

[0016] Figure 3 It is Figure 2 Another view of the utility model.

[0017] In the drawing: 1, film; 2, front cover; 4, liquid crystal display; 5, metal shielding shell; 6, adapter board; 7, fixed cover; 8, heat dissipation fin; 9, fixed base; 10, mainboard; 11, rear cover; 12, dismounting opening; 13, fan. DETAILED DESCRIPTION

[0018] In order to make the technical scheme of the utility model embodiment more clearly, the following will be briefly introduced to the drawing needed to be used in the embodiment:

[0019] The utility model provides a kind of integrated frequency conversion speed regulation control box, including the box body with accommodating space being arranged in it, electrical assembly being arranged in the box body, specifically, box body includes the rear cover 11 with the open side being opened, the front cover 2 of the cover being arranged at the open side of rear cover 11, and the front cover 2 and rear cover 11 are enclosed to constitute the accommodating space of accommodating electrical assembly, and electrical assembly includes liquid crystal display 4, touch panel, adapter plate 6, mainboard 10, speed regulation circuit, control circuit, adapter plate 6 is integrated with touch drive circuit and liquid crystal drive circuit, speed regulation circuit and control circuit are provided on mainboard 10, speed regulation circuit is responsible for the speed of external device adjustment, and control circuit is accurately controlled to speed regulation circuit, touch panel is connected with the input end of control circuit by touch drive circuit, so that the operating signal of user on touch panel is transmitted to control circuit after being handled by touch drive circuit, the input end of speed regulation circuit is connected with the output end of control circuit, so that speed regulation circuit is adjusted according to control signal to external device, and the output end of speed regulation circuit is connected with liquid crystal display 4 by liquid crystal drive circuit, to display the information such as the running state of external device on liquid crystal display 4.

[0020] In order to reduce the influence of electromagnetic interference generated by speed regulation circuit on liquid crystal display 4 and touch panel, metal shielding shell 5 is arranged outside liquid crystal display 4 and touch panel, metal shielding shell 5 is fixed to the inner side of front cover 2, so that liquid crystal display 4 and touch panel are located between front cover 2 and metal shielding shell 5, the box body is made of metal material, metal shielding shell 5 is electrically connected with front cover 2 or / and rear cover 11 through wire, so that metal shielding shell 5 and the box body of control box form equipotential shielding body, which can effectively shield electromagnetic interference, and the window is opened on the front cover 2 corresponding to the position of liquid crystal display 4 and touch panel, and bright pvc film 1 is attached to the front side of front cover 2.

[0021] Further, the control box is further provided with a heat dissipation structure, the heat dissipation structure comprises a fixing seat, heat dissipation fins 8 arranged in the fixing seat, the fixing seat is arranged between the metal shielding shell 5 and the mainboard 10, a recess is inwardly recessed on the side of the fixing seat facing the metal shielding shell 5, the metal shielding shell 5 is covered with the fixing seat, and the metal shielding shell 5 is located in the recess, so that the heat dissipation space layout is effectively optimized, the fixing seat comprises a fixing base 9 and a fixing cover 7 covered on the fixing base 9, the fixing base 9 and the fixing cover 7 enclose a heat dissipation space for accommodating the heat dissipation fins 8, a fan 13 is arranged on one end of the fixing base 9 and located at the heat dissipation fins 8, the fan 13 serves as a power source for heat dissipation, and introduces external cold air into the heat dissipation space, a through opening is formed on the other end of the fixing base 9 and located at the heat dissipation fins 8, and hot air is discharged through the through opening, meanwhile, a heat dissipation hole is further formed on one side of the fixing base 9 and located at the heat dissipation fins 8, so that the heat dissipation effect is further enhanced, through the cooperative work of the fan 13, the through opening and the heat dissipation hole, a good heat dissipation channel is formed, the heat generated on the mainboard 10 can be timely dissipated, and the mainboard 10 and the circuits can stably operate in a suitable temperature environment.

[0022] A plurality of relays are further arranged on the mainboard 10, in order to facilitate the maintenance and repair of the relays, a dismounting opening 1212 corresponding to the positions of the relays is formed on the rear cover 11, further, the relay output is protected by a detachable fuse, when the corresponding fuse is removed, the relay output is a dry contact, and when the fuse is inserted, the relay controls the on-off of the live wire or the zero line.

[0023] Further, the speed regulation circuit and the control circuit are arranged on the mainboard 10 in a left-right layout or an up-down layout, and an electrical isolation layer (metal partition plate) is arranged between the speed regulation circuit and the control circuit.

[0024] Finally, it should be noted that the above embodiments are only used for illustration but not for limiting the technical scheme of the utility model, any equivalent replacement, modification or partial replacement of the utility model without departing from the spirit and scope of the utility model should be covered in the protection scope of the utility model claim.

Claims

1. An integrated variable frequency speed control box comprising a rear cover, a front cover covered on the rear cover, the front cover and the rear cover enclosing a containing space for containing electrical components, characterized in that, The electrical components include a liquid crystal display, a touch panel, a conversion board, a main board, a speed regulation circuit, and a control circuit. The conversion board is integrated with a touch drive circuit and a liquid crystal drive circuit. The speed regulation circuit and the control circuit are arranged on the main board. The touch panel is connected to the input end of the control circuit through the touch drive circuit. The output end of the control circuit is connected to the input end of the speed regulation circuit. The output end of the speed regulation circuit is connected to the liquid crystal display through the liquid crystal drive circuit.

2. The integrated variable frequency speed control box of claim 1, wherein, The outer side of the liquid crystal display and the touch panel is covered with a metal shielding shell in electrical communication with the front cover or / and the rear cover. The metal shielding shell is fixed to the inner side of the front cover, and the liquid crystal display and the touch panel are located between the front cover and the metal shielding shell.

3. The integrated variable frequency drive control box of claim 2, wherein, The fixing seat, the heat sink arranged in the fixing seat, the fixing seat is arranged between the metal shielding shell and the main board, the side of the fixing seat facing the metal shielding shell is inwardly recessed with a groove, the fixing seat is covered on the outer side of the metal shielding shell, and the metal shielding shell is located in the groove.

4. The integrated variable frequency speed control box of claim 3, wherein, A plurality of relays are arranged on the main board, and a dismounting opening corresponding to the positions of the relays is arranged on the rear cover.

5. The integrated variable frequency drive control box of claim 3, wherein, The fixing seat includes a fixing base and a fixing cover covered on the fixing base. The fixing base and the fixing cover enclose a heat dissipation space for accommodating the heat sink. A fan is arranged on the fixing base at one end of the heat sink. A through opening is arranged on the fixing base at the other end of the heat sink. A heat dissipation hole is arranged on the fixing base at one side of the heat sink.

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