Backpack type frequency converter

Abstract

The utility model discloses a backpack type frequency converter, which comprises a frequency converter main body and a control panel, and the control panel is arranged at the top of the frequency converter main body. The frequency converter main body comprises a first shell, the first shell is arranged at the top of the frequency converter main body, and the control panel is installed in the first shell in a detachable and embedded mode; the surface of the first shell is provided with a plurality of staggered groove bodies extending in different directions with the same center, and the control panel is embedded into the staggered groove bodies in one direction according to actual installation requirements. According to the backpack type frequency converter, the installation direction can be selected according to the actual installation environment, meanwhile, it is guaranteed that the installation direction of the control panel can independently meet the use convenience of operators, and therefore the installation adaptability of the backpack type frequency converter is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to a backpack frequency converter. Background Art

[0002] A frequency converter is an electronic device used to control the speed and operation mode of an AC motor. It usually includes power electronics, control circuits, and user interfaces. The main function of a frequency converter is to control the speed of an AC motor by changing the power supply frequency and voltage. Traditional AC motors are usually powered directly by a power supply, and the speed is limited by the power supply frequency. After using a frequency converter, the motor speed can be precisely controlled by adjusting the output frequency and voltage of the frequency converter. This method enables the motor to operate efficiently and accurately under different loads and working conditions, saving energy and extending the service life of the equipment. A backpack frequency converter is a portable frequency converter device that can be carried on the body. It is usually used in situations where mobile operation is required, such as maintenance, installation, and commissioning. This type of frequency converter does not require a fixed control cabinet or equipment. The backpack frequency converter is portable and flexible, usually with a lightweight design and structure, and is equipped with a strap or backpack-style support device so that the user can carry it on the body for mobile operation.

[0003] However, traditional backpack inverters currently on the market usually have a preset installation reverse direction. This is because the installation direction of the control panel on the inverter surface is preset and fixed, and the limitation of the display and operation direction causes the correct installation direction of the backpack inverter to be limited. Therefore, for application scenarios with restricted installation environments, the applicability of the operation and display direction of the control panel cannot be guaranteed, which causes inconvenience in use. Utility Model Content

[0004] Based on this, it is necessary to provide a backpack inverter to address the technical problem that the applicability and convenience of the backpack inverter decrease when the installation environment is restricted.

[0005] A backpack frequency converter comprises a frequency converter body and a control panel. The control panel is arranged on the top of the frequency converter body and is used for data display and operation control of the backpack frequency converter.

[0006] The inverter body comprises a first shell, which is arranged on the top of the inverter body for installing a control panel, wherein the control panel is installed on the first shell in a detachable and embedded manner.

[0007] The surface of the first shell is provided with a plurality of staggered slots extending in different directions with the same center, and the control panel is embedded into the staggered slots in one direction according to the actual installation requirements.

[0008] In one of the embodiments, the first shell surface is provided with a first mating groove and a second mating groove which are vertically staggered with the same center, so that the control panel can adaptively adjust its setting direction with an adjustment range of 90° according to the overall installation direction of the backpack inverter.

[0009] In one embodiment, the first matching groove and the second matching groove are alternately arranged in the middle of the top wall of the first shell, and both the first matching groove and the second matching groove penetrate from one side of the top wall of the first shell to the other side.

[0010] In one embodiment, when the control panel is matched with the first matching groove and the second matching groove respectively, the control panel passes through from the inside of the first shell to the top side of the first shell.

[0011] In one of the embodiments, the above-mentioned control panel includes a panel unit and a first PCB unit, the panel unit is arranged on the top side surface of the first PCB unit; the side edge contours of the panel unit are respectively adapted to the first mating groove and the second mating groove; the first PCB unit is connected and installed to the inner surface of the top wall of the first shell.

[0012] In one of the embodiments, a first mounting groove is disposed on the inner surface of the top wall of the first shell, the first mounting groove is sleeved on the outer circumference of the first matching groove and the second matching groove, and the first mounting groove is adapted to the surface contour of the first PCB unit.

[0013] In one of the embodiments, when the control panel is installed to the first shell, the panel unit is matched with either the first matching groove or the second matching groove, and the first PCB unit is embedded in the first installation groove.

[0014] In one of the embodiments, the backpack inverter further includes a cover plate, and the cover plate corresponding panel unit is snapped onto the outer surface of the top wall of the first shell, so that the cover plate can effectively seal the first mating groove and the second mating groove of the first shell.

[0015] In one of the embodiments, the cover plate is provided with a transparent portion, and the transparent portion is provided in the middle of the cover plate corresponding to the panel unit.

[0016] In one embodiment, the first PCB unit is provided with a plurality of connection protrusions, which are arranged along the edge of the first PCB unit on a side surface of the first PCB unit facing the first shell, and each connection protrusion extends toward the first shell by a preset height.

[0017] In one of the embodiments, the first mounting groove is provided with a plurality of connecting parts corresponding to the plurality of connecting protrusions, and the plurality of connecting parts are respectively connected to the bottom of the first mounting groove through a buffer portion; when the first PCB unit is installed to the first mounting groove, the plurality of connecting protrusions are respectively matched and connected with the plurality of connecting parts one by one.

[0018] In one embodiment, a plurality of avoidance grooves are provided at the bottom of the first installation groove corresponding to a plurality of connecting members, a plurality of connecting members are respectively embedded in the plurality of avoidance grooves, and each connecting member is connected to the groove wall of the corresponding avoidance groove through a buffer portion.

[0019] In one of the embodiments, the first shell is provided with a second mounting groove corresponding to the cover plate, and the second mounting groove is provided in the middle of the outer surface of the top wall of the first shell for receiving and mounting the cover plate.

[0020] In one embodiment, the groove wall of the second installation groove is provided with a plurality of limiting protrusions, and the edge of the cover plate is provided with a plurality of limiting grooves corresponding to the plurality of limiting protrusions. When the cover plate is installed to the second installation groove, the plurality of limiting grooves respectively correspond to the plurality of limiting protrusions one by one.

[0021] In one embodiment, the plurality of limiting protrusions are equidistantly distributed in the circumferential direction on the same circle with the intersection point of the first matching groove and the second matching groove as the center.

[0022] In one embodiment, the inverter body further includes a second shell, a second PCB unit, a heat dissipation unit and a plurality of base plates; the second shell is arranged on the bottom side of the first shell; the second PCB unit and the heat dissipation unit are accommodated and installed in the second shell; and a plurality of base plates are arranged on the bottom side of the second shell.

[0023] The backpack inverter of the utility model includes a first housing, which is arranged on the top of the inverter body for installing the control panel, wherein the control panel is installed in the first housing in a detachable and embedded manner. The conventional backpack inverters currently available on the market usually have a preset installation reverse direction. This is because the installation direction of the control panel on the inverter surface is preset and fixed, and the limitation of the display and operation direction causes the correct installation direction of the backpack inverter to be limited. Therefore, for application scenarios with limited installation environments, the applicability of the operation and display directions of the control panel cannot be guaranteed, which causes inconvenience in use. In order to solve the problem of reduced applicability and convenience of the backpack inverter under limited installation environments, a plurality of staggered slots extending in different directions are arranged on the surface of the first housing with the same center, and the control panel is embedded in the staggered slots in one direction according to the actual installation requirements. Therefore, the backpack inverter of the utility model can select the installation direction according to the actual installation environment, and at the same time ensure that the installation direction of the control panel can independently meet the convenience of the operator, and thus, the installation adaptability of the backpack transformer of the utility model is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a backpack frequency converter in one embodiment;

[0025] Figure 2 A schematic diagram of an exploded structure of a backpack inverter in one embodiment;

[0026] Figure 3 A schematic diagram of an exploded structure of a backpack inverter in one embodiment;

[0027] Figure 4 for Figure 2 An enlarged structural schematic diagram of the M portion in the illustrated embodiment;

[0028] Figure 5 for Figure 3 A schematic diagram of the enlarged structure of part N in the illustrated embodiment. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] See also Figures 1 to 5 The utility model discloses a backpack inverter 10, which includes an inverter body 110 and a control panel 120. The control panel 120 is arranged on the top of the inverter body 110 for data display and operation control of the backpack inverter 10. Specifically, the inverter body 110 includes a first shell 111, which is arranged on the top of the inverter body 110 for installation of the control panel 120, wherein the control panel 120 is installed on the first shell 111 in a detachable and embedded manner. The conventional backpack inverter 10 currently available on the market usually has a preset installation reverse direction. This is because the installation direction of the control panel 120 on the inverter surface is preset and fixed, and the limitation of the display and operation direction causes the correct installation direction of the backpack inverter 10 to be limited. Therefore, for application scenarios with limited installation environments, the applicability of the operation and display directions of the control panel 120 cannot be guaranteed, which causes inconvenience in use. In order to solve the problem of reduced applicability and convenience of the backpack inverter 10 when the installation environment is limited, a plurality of staggered slots extending in different directions are arranged on the surface of the first shell 111 with the same center, and the control panel 120 is embedded in the staggered slots in a direction selected according to the actual installation requirements, so that the backpack inverter 10 of the utility model can select the installation direction according to the actual installation environment, while ensuring that the installation direction of the control panel 120 can independently meet the convenience of use of the operator, and thus, the installation adaptability of the backpack transformer of the utility model is effectively improved. In this embodiment, the surface of the first shell 111 is provided with a first matching slot a and a second matching slot b arranged perpendicularly and staggered to each other with the same center, so that the control panel 120 can adaptively adjust its setting direction with an adjustment range of 90° according to the overall installation direction of the backpack inverter 10.

[0036] See also Figures 1 to 5Furthermore, the first matching groove a and the second matching groove b are alternately arranged in the middle of the top wall of the first shell 111, and the first matching groove a and the second matching groove b are both penetrated from one side of the top wall of the first shell 111 to the other side. Specifically, when the control panel 120 is matched with the first matching groove a and the second matching groove b respectively, the control panel 120 penetrates from the inside of the first shell 111 to the top side of the first shell 111, so that the operator can operate and use the control panel 120 from the top side of the first shell 111.

[0037] See also Figures 1 to 5 Furthermore, the control panel 120 includes a panel unit 121 and a first PCB unit 122. The panel unit 121 is arranged on the top side surface of the first PCB unit 122. The side edge contours of the panel unit 121 are respectively matched with the first matching groove a and the second matching groove b. The first PCB unit 122 is connected and installed to the inner surface of the top wall of the first shell 111. Correspondingly, the inner surface of the top wall of the first shell 111 is provided with a first mounting groove c. The first mounting groove c is sleeved on the outer periphery of the first matching groove a and the second matching groove b. The first mounting groove c is matched with the surface contour of the first PCB unit 122. Specifically, when the control panel 120 is installed to the first shell 111, the panel unit 121 is respectively matched with the first matching groove a and the second matching groove b, and the first PCB unit 122 is embedded in the first mounting groove c, thereby realizing the stable installation of the control panel 120.

[0038] See also Figures 1 to 5 Furthermore, the backpack inverter 10 further includes a cover plate 130, which is snapped onto the outer surface of the top wall of the first housing 111 corresponding to the panel unit 121, so that the cover plate 130 can effectively seal the first matching groove a and the second matching groove b of the first housing 111, thereby isolating and protecting the control panel 120 and the remaining internal structures of the first housing 111 from the outside. In this embodiment, the cover plate 130 is provided with a transparent portion 131, which is arranged in the middle of the cover plate 130 corresponding to the panel unit 121, and the setting angle of the cover plate 130 can be adjusted accordingly according to the setting direction of the panel unit 121, so that the transparent portion 131 can always match the panel unit 121, and then, the operator can operate and use the panel unit 121 through the transparent portion 131.

[0039] See also Figures 1 to 5Furthermore, the first PCB unit 122 is provided with a plurality of connecting protrusions 1221, which are provided on a side surface of the first PCB unit 122 facing the first housing 111 along the edge of the first PCB unit 122, and each connecting protrusion 1221 extends toward the first housing 111 by a preset height. Correspondingly, the first mounting groove c is provided with a plurality of connecting members 1111 corresponding to the plurality of connecting protrusions 1221, and the plurality of connecting members 1111 are respectively connected to the bottom of the first mounting groove c through a buffer portion 1112; when the first PCB unit 122 is installed in the first mounting groove c, the plurality of connecting protrusions 1221 are respectively matched and connected with the plurality of connecting members 1111 one by one, thereby further improving the installation stability of the first PCB unit 122. Specifically, a plurality of avoidance grooves d are provided at the bottom of the first installation groove c corresponding to the plurality of connecting parts 1111, and the plurality of connecting parts 1111 are respectively embedded in the plurality of avoidance grooves d, and each connecting part 1111 is connected to the groove wall of the corresponding avoidance groove d through a buffer portion 1112. Furthermore, after the first PCB unit 122 is installed in the first installation groove c, the control panel 120 has a certain buffer space relative to the first shell body 111, thereby reducing the influence of the vibration of the backpack inverter 10 on the stability and service life of the first PCB unit 122.

[0040] See also Figures 1 to 5 , further, the first shell 111 is provided with a second installation groove e corresponding to the cover plate 130, and the second installation groove e is provided in the middle of the outer surface of the top wall of the first shell 111, so as to accommodate and install the cover plate 130. Specifically, the groove wall of the second installation groove e is provided with a plurality of limiting protrusions 1113, and the edge of the cover plate 130 is provided with a plurality of limiting grooves f corresponding to the plurality of limiting protrusions 1113. When the cover plate 130 is installed in the second installation groove e, the plurality of limiting grooves f respectively correspond to the plurality of limiting protrusions 1113 one by one, thereby limiting the relative position of the cover plate 130 between the second installation grooves e. In this embodiment, with the intersection point center of the first matching groove a and the second matching groove b, the plurality of limiting protrusions 1113 are equidistantly distributed in the circumferential direction of the same circle, so that the cover plate 130 can be adaptively adjusted according to the setting direction of the panel unit 121.

[0041] See also Figures 1 to 5 Furthermore, the inverter body 110 also includes a second shell 112, a second PCB unit 113, a heat dissipation unit 114 and a plurality of bottom plates 115; the second shell 112 is arranged on the bottom side of the first shell 111; the second PCB unit 113 and the heat dissipation unit 114 are accommodated and installed in the second shell 112; a plurality of bottom plates 115 are arranged on the bottom side of the second shell 112, thereby forming the inverter body 110 to realize the frequency conversion function of the backpack inverter 10.

[0042] In summary, the backpack inverter disclosed by the utility model includes a first shell, which is arranged on the top of the inverter body for installing the control panel, wherein the control panel is installed in the first shell in a detachable and embedded manner. The conventional backpack inverter currently available on the market usually has a preset installation reverse direction. This is because the installation direction of the control panel on the inverter surface is preset and fixed, and the limitation of the display and operation direction causes the correct installation direction of the backpack inverter to be limited. Therefore, for application scenarios with limited installation environment, the applicability of the operation and display direction of the control panel cannot be guaranteed, which causes inconvenience in use. In order to solve the problem of reduced applicability and convenience of the backpack inverter under the condition of limited installation environment, a plurality of staggered slots extending in different directions are arranged on the surface of the first shell with the same center, and the control panel is embedded in the staggered slots according to the actual installation requirements. Thus, the backpack inverter of the utility model can select the installation direction according to the actual installation environment, and at the same time ensure that the installation direction of the control panel can independently meet the convenience of the operator, and thus, the installation adaptability of the backpack transformer of the utility model is effectively improved.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A backpack inverter, characterized in that: include: A frequency converter body and a control panel, wherein the control panel is arranged on the top of the frequency converter body; The inverter body comprises a first shell, which is arranged on the top of the inverter body, wherein the control panel is installed in the first shell in a detachable and embedded manner; The surface of the first shell is provided with a plurality of staggered slots extending in different directions with the same center, and the control panel is embedded into the staggered slots in one direction according to actual installation requirements.

2. The backpack inverter according to claim 1, characterized in that: The first shell surface is provided with a first matching groove and a second matching groove which are vertically staggered with each other at the same center, so that the control panel can adaptively adjust its setting direction with an adjustment range of 90° according to the overall installation direction of the backpack inverter.

3. The backpack inverter according to claim 2, characterized in that: The first matching groove and the second matching groove are alternately arranged in the middle of the top wall of the first shell, and both the first matching groove and the second matching groove penetrate from one side of the top wall of the first shell to the other side.

4. The backpack inverter according to claim 3, characterized in that: The control panel includes a panel unit and a first PCB unit, the panel unit is arranged on the top side surface of the first PCB unit; the side edge contours of the panel unit are respectively adapted to the first mating groove and the second mating groove; the first PCB unit is connected and installed to the inner surface of the top wall of the first shell.

5. The backpack inverter according to claim 4, characterized in that: A first mounting groove is disposed on the inner surface of the top wall of the first shell, and the first mounting groove is sleeved on the outer circumference of the first matching groove and the second matching groove, and the first mounting groove is adapted to the surface contour of the first PCB unit.

6. The backpack inverter according to claim 5, characterized in that: When the control panel is mounted to the first shell, the panel unit is matched with either the first matching groove or the second matching groove, and the first PCB unit is embedded in the first mounting groove.

7. The backpack inverter according to claim 6, characterized in that: The backpack inverter also includes a cover plate, and the cover plate corresponding panel unit is buckled to the outer surface of the top wall of the first shell, so that the cover plate can effectively seal the first matching groove and the second matching groove of the first shell.

8. The backpack inverter according to claim 7, characterized in that: The first PCB unit is provided with a plurality of connection protrusions, and the plurality of connection protrusions are arranged along the edge of the first PCB unit on a side surface of the first PCB unit facing the first shell, and each of the connection protrusions extends toward the first shell to a preset height.

9. The backpack inverter according to claim 8, characterized in that: The first mounting groove is provided with a plurality of connecting parts corresponding to the plurality of connecting protrusions, and the plurality of connecting parts are respectively connected to the bottom of the first mounting groove through a buffer part; when the first PCB unit is installed to the first mounting groove, the plurality of connecting protrusions are respectively matched and connected with the plurality of connecting parts one by one.

10. The backpack inverter according to claim 9, characterized in that: The first shell is provided with a second installation groove corresponding to the cover plate, and the second installation groove is arranged in the middle of the outer surface of the top wall of the first shell to be used for accommodating and installing the cover plate.

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