CN108808836B

CN108808836B - Support for installing capacitor and temperature sensing element in UPS and UPS

Info

Publication number: CN108808836B
Application number: CN201810338340.3A
Authority: CN
Inventors: 张晓磊; 刘洛平; 李江莉; 郑大为
Original assignee: Santak Electronic Shenzhen Co Ltd
Current assignee: Santak Electronic Shenzhen Co Ltd
Priority date: 2018-04-16
Filing date: 2018-04-16
Publication date: 2021-09-17
Anticipated expiration: 2038-04-16
Also published as: CN108808836A; TW201944692A; TWI826435B

Abstract

The invention relates to a support for installing a capacitor and a temperature sensing element in a UPS and the UPS, wherein the temperature sensing element is used for acquiring the temperature of the capacitor, and the support comprises: a top plate configured to mount a temperature sensing element; the limiting piece and the top plate are arranged at intervals in a mode of adjustable distance, and a clamping space for receiving the capacitor is defined between the top plate and the limiting piece; and a connecting portion including an elastic arm having a first section and a second section, one end of the first section being connected to the stopper and the other end being connected to the second section, one end of the second section remote from the first section being connected to the top plate, and the second section being arranged at an angle with respect to the first section, the elastic arm being configured to have an elasticity allowing the elastic arm to apply a force to the top plate and the stopper to clamp the capacitor when the capacitor is mounted in the clamping space such that an angle between the first section and the second section increases.

Description

Support for installing capacitor and temperature sensing element in UPS and UPS

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a bracket for mounting a capacitor and a temperature sensing element in a UPS and the UPS.

Background

Capacitors (e.g., film capacitors) are often used in conventional UPSs (Uninterruptible Power systems). There is a problem in that the capacitor is often damaged due to overheating, which affects the normal operation of the UPS. Therefore, there is a need for temperature monitoring of the capacitor in the UPS to alarm or switch to bypass mode operation in time when the temperature of the capacitor reaches a threshold. To ensure that this monitoring process is performed reliably, it is necessary to install a detection device for the capacitance in the UPS, which generally includes a temperature sensing element and a control element. The reasonable installation of the temperature sensing element and the capacitor is the premise of reliably monitoring the temperature of the capacitor.

Disclosure of Invention

The invention aims to provide a bracket for mounting a capacitor and a temperature sensing element in a UPS (uninterrupted power supply), which can ensure that a relatively stable position relation is kept between the capacitor and the temperature sensing element for acquiring the temperature of the capacitor, so that a capacitor temperature signal acquired by the temperature sensing element is relatively reliable.

The invention also aims to provide the UPS applying the capacitor, the temperature sensing element and the bracket.

According to an aspect of the present invention, there is provided a mount for mounting a capacitor and a temperature sensing element in a UPS, wherein the temperature sensing element is configured to sense a temperature of the capacitor, the mount comprising: a top plate configured to mount the temperature sensing element; the limiting piece and the top plate are arranged at intervals in an adjustable distance mode, and a clamping space for receiving the capacitor is defined between the top plate and the limiting piece; and a connecting portion including an elastic arm having a first section and a second section, one end of the first section being connected to the stopper and the other end being connected to the second section, one end of the second section remote from the first section being connected to the top plate, and the second section being arranged at an angle with respect to the first section, the elastic arm being configured to allow the elastic arm to apply a force to the top plate and the stopper that causes them to clamp the capacitor when the capacitor is mounted in the clamping space such that an angle between the first section and the second section increases.

In one embodiment, the first section extends perpendicularly to the ceiling and the second section extends obliquely between the first section and the ceiling.

In one embodiment, the second section extends obliquely from the top plate in a direction away from the stopper.

Preferably, the extending end of the second section has a bent section parallel to the top plate, and the bent section is connected with the end of the first section.

In one embodiment, at least one pair of elastic arms is arranged at two opposite ends of the top plate, and each elastic arm is integrally bent and formed with the limiting piece at the end part far away from the top plate.

In one embodiment, the top plate is connected with a plurality of elastic arms, the connecting portion further includes a connecting plate connected between two adjacent elastic arms and adapted to surround an outer circumferential surface of the capacitor, and the stopper is disposed on the connecting plate.

In one embodiment, the top plate has an opening adapted to receive the temperature sensing element and communicating with the clamping space, and at least one pair of stoppers are disposed on opposite sides of the opening, at least one of which stoppers has a protruding catching portion formed thereon, the at least one pair of stoppers and the catching portion defining a space for receiving the temperature sensing element.

In one embodiment, the top plate is provided with a positioning post adapted to pass through a through hole in the temperature-sensing element, the positioning post being capable of forming an interference fit with a gland or being capable of forming a threaded fit with a compression nut to compress the temperature-sensing element against the top plate, at least the top plate being made of a thermally conductive sheet material in the holder.

Preferably, the top plate has a rotation stopper extending away from the holding space and adapted to prevent the temperature sensing element from rotating around the positioning post.

According to another aspect of the present invention there is provided a UPS comprising a capacitor, wherein the UPS further comprises a temperature sensing element for sensing the temperature of the capacitor, the capacitor and the temperature sensing element being mounted on a support, wherein the support is as claimed in any one of claims 1 to 9.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.

Drawings

Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of a stent according to a first embodiment of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic view of an angle of the holder of the first embodiment of FIG. 1 after assembly with a capacitor and temperature-sensing element;

FIG. 4 is a schematic view at another angle than FIG. 3;

FIG. 5 is a schematic view of yet another angle different from that of FIGS. 3 and 4;

FIG. 6 is a schematic view of a stent according to a second embodiment of the present invention;

FIG. 7 is a schematic view of an angle of the bracket of the second embodiment of FIG. 6 after assembly with a capacitor and temperature sensing element;

FIG. 8 is a schematic view at another angle than FIG. 7;

fig. 9 is a schematic view of yet another angle different from fig. 7 and 8.

Description of reference numerals:

1. capacitor with a capacitor element

3. Temperature sensing element

5. Support frame

50. Top board

501. Opening of the container

503. Rotary blocking piece

51. Inclined plane

52. Position limiting piece

54. Clamping space

56. Connecting part

561. Elastic arm

562. Connecting plate

563. First section

564. Slit

565. Second section

567. Bending section

57. Clamping part

58. Stop piece

59. Positioning column

6. Compression nut

Detailed Description

Referring now to the drawings, illustrative versions of the disclosed apparatus will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

In the present invention, "elastic" or "elastically" refers to a state that a component/assembly/structure can be transformed from an initial state to a deformed state under an external force, and the component/assembly/structure in the deformed state has the capability of self-returning to the initial state, or the tendency of self-returning to the initial state. The "elasticity" may be due to material properties, such as plastic parts, or may be due to factors such as the morphology, thickness, etc. of the component/assembly/structure, such as sheet metal parts.

In the present invention, "connected" or "connected" encompasses both meanings, i.e., direct connection between two members without an intermediate connecting structure (e.g., third member)/material (e.g., adhesive), and indirect connection through an intermediate connecting structure (e.g., third member)/material (e.g., adhesive).

Fig. 1 to 5 show a first embodiment of the present invention. As shown in fig. 1 and 2, in this embodiment, the support 5 is integrally formed in a frame-type structure to surround the capacitor 1. The bracket 5 includes a top plate 50, a connecting portion 56 connected to the top plate 50, and a stopper 52 provided on the connecting portion 56. Wherein the top plate 50 and the stopper 52 are disposed on opposite sides of the connecting portion 56, and a clamping space 54 for placing the capacitor 1 is defined between the top plate 50 and the stopper 52. At least a portion of the connecting portion 56 is elastically deformable to allow the distance between the top plate 50 and the stopper 52 at both ends thereof to be appropriately adjusted.

In the illustrated embodiment, the connecting portion 56 includes four resilient arms 561 spaced around the periphery of the top plate 50 and each being resiliently deformable, wherein each resilient arm 561 is made up of a first section 563 and a second section 565. The first sections 563 are vertically arranged and the top plate 50 is horizontally arranged perpendicular thereto, and the four first sections 563 form part of a frame that can enclose the capacitor 1. A first end of the second section 565 is connected to the top plate 50, and a second end opposite to the first end extends obliquely with respect to the first section 563 in a direction away from the stopper 52 and is connected to the first section 563. After mounting the capacitor 1, the second section 565 is substantially suspended above the capacitor 1 without contacting the capacitor 1. An included angle is formed between the first section 563 and the second section 565. The elasticity of the elastic arms 561 allows the angle to be elastically changed and allows the distance between the top plate 50 and the stopper 52 to be appropriately adjusted.

It is reasonably contemplated by those skilled in the art that the configuration of the resilient arms 561 is not limited to that shown in the figures. For example, in one embodiment not shown, both the first section 563 and the second section 565 extend obliquely relative to the top plate 50, wherein the second section 565 extends obliquely downward from the top plate 50. In another embodiment, not shown, the first section 563 is perpendicular to the top plate 50, while the second section 565 extends obliquely downward from the top plate 50 and is directly connected to the first section 563. In yet another embodiment, not shown, there is a direct connection between the first section 563 and the second section 565, but an intermediate connecting section. No matter how the elastic arm 561 is modified, as long as the elasticity of the elastic arm 561 can allow the inclination angle of the second section 565 to change relative to the first section 563, the effect of adjusting the distance between the top plate 50 and the limiting member 52 can be achieved, and the invention falls into the protection scope of the present invention.

A connecting plate 562 is provided at one end of the four elastic arms 561 remote from the top plate 50. As shown, four connection plates 562 connect two adjacent elastic arms 561 in sequence, and constitute a part of a frame capable of surrounding the capacitor 1. A plurality of stoppers 52 are arranged in pairs on the connection plates 562, and each pair of stoppers 52 is arranged on two opposite connection plates 562. When the capacitor 1 is accommodated in the holding space 54, the outer periphery thereof is surrounded by these first sections 563 and the connection plates 562, and the upper and lower ends of the capacitor 1 are clamped by the top plate 50 and the stopper 52 due to the elastic deformation of the elastic arms 561.

It is conceivable that the number of resilient arms 561 can be adjusted according to actual needs, e.g. 1, 2, 3, 5, etc.

In a preferred embodiment, the connection plate 562, particularly the relatively long-sized connection plate 562, may be provided with a plurality of vertically extending slits 564, each slit 564 being open towards a bottom end facing away from the resilient arm 561. It is preferable that the limiting member 52 is provided on the connection plate 562 between the adjacent two slits 564 of the connection plate 562 so that the limiting member 52 is located at a position that can be easily expanded outward to fit the capacitor 1.

The temperature sensing element 3 is fixed at the top plate 50 of the holder 5 as a temperature signal acquiring element of the capacitor 1. The temperature sensing element 3 may be a thermistor or other temperature sensor. In this first embodiment, the top plate 50 is formed at a substantially central position thereof with an opening 501 communicating with the nip space 54, and the size of the opening 501 is adapted to the size of the temperature sensing element 3 so that the temperature sensing element 3 can pass through the opening 501. A stopper 58 is disposed around the periphery of the opening 501. In the illustrated embodiment, four stopper pieces 58 are arranged in pairs, and each pair of stopper pieces 58 is arranged on opposite sides of the opening 501, with the upper ends of the pair of stopper pieces 58 being formed with protruding catching portions 57. The movement of the temperature sensing element 3 is limited by the stopper 58 and the engaging portion 57, wherein the engaging portion 57 applies a force to the temperature sensing element 3 to press the temperature sensing element 3 toward the capacitor 1, thereby ensuring a stable relative positional relationship between the temperature sensing element 3 and the capacitor 1.

To facilitate mounting of the temperature sensing element 3, the inward-facing side surface of the click portion 57 is formed with the inclined surface 51, and the stopper 58, which is not formed with the click portion, is similarly formed with the inclined surface 51. Thus, the temperature sensing element 3 can smoothly fall into the space surrounded by the snap portion 57 and the stopper 58 along the inclined surface 51.

As shown in fig. 3 to 5, schematic views in which the capacitor 1 and the temperature-sensitive element 3 are equipped to the holder 5 are shown at various angles. After the capacitor 1 is placed in the holding space 54, the distance between the top plate 50 and the limiting member 52 is "widened" due to its own volume, so that the included angle between the first section 563 and the second section 565 of the elastic arm 561 is increased, and the increased included angle causes the elastic arm 561 to exert a force on the top plate 50 and the limiting member 52 by virtue of its elasticity, so that they clamp the capacitor 1, and further the temperature sensing element 3 is firmly pressed against the capacitor 1 by the clamping portion 57 mounted on the top plate 50.

Referring to fig. 6 to 8, a second embodiment of the present invention is shown. As shown in fig. 6, in this embodiment, the bracket 5 includes a top plate 50, a connecting portion 56 connected to the top plate 50, and a stopper 52 connected to the connecting portion 56, wherein the top plate 50 and the stopper 52 are arranged at opposite ends of the connecting portion 56 so as to form a clamping space 54 therebetween for accommodating the capacitor 1. The top plate 50, the connecting portion 56, and the stopper 52 are preferably integrally formed by bending a sheet metal. Unlike the first embodiment, the connecting portion 56 is not provided with the connecting plate 562 in the second embodiment. As shown, one elastic arm 561 is connected to each of opposite ends of the horizontally disposed top plate 50, and each elastic arm 561 includes a first section 563 disposed vertically and a second section 565 disposed obliquely to the first section 563. In the illustrated embodiment, the second section 565 has a first end connected to the top plate 50, a second end opposite to the first end extending obliquely in a direction away from the stopper 52, and a horizontal bending section 567 formed at the extending end. After mounting the capacitor 1, the second section 565 is substantially suspended above the capacitor 1 without contacting the capacitor 1. An included angle is formed between the first section 563 and the second section 565. The elasticity of the elastic arms 561 allows the angle to be elastically changed and allows the distance between the top plate 50 and the stopper 52 to be appropriately adjusted. The first section 563 has one end connected to the bending section 567 of the second section 565 and the other end integrally bent to form a stopper 52. Here, the first section 563 and the second section 565 are shaped in the same manner as in the first embodiment, and various variations in the inclination/arrangement direction are possible in order to clamp the capacitor 1 by the top plate 50 and the stopper 52 by virtue of the elastic property of the elastic arm 561.

It is also conceivable that the number of resilient arms 561 can be adjusted according to actual needs, e.g. 3, 4, etc.

In order to fix the temperature sensing element 3 to the top plate 50, positioning posts 59 are provided on the top plate 50. The locating post 59 may be externally threaded as shown to form a threaded engagement with a compression nut 6. Correspondingly, the temperature sensing element 3 is provided with a through hole through which the positioning post 59 is passed and is screw-engaged at its projecting end with the pressing nut 6, so that the pressing nut 6 presses the temperature sensing element 3 against the top plate 50. Alternatively, the positioning post 59 may have no screw thread on its outer periphery, and the temperature sensing element 3 may be pressed against the top plate 50 by a pressing cover that is in interference fit therewith. Since the bracket 50 in the second embodiment is a relatively thin sheet metal part and has thermal conductivity, the function of acquiring the temperature of the capacitor 1 by the temperature sensing element 3 is not greatly affected, and the function can be corrected by adjusting the threshold value of the monitored temperature.

It is conceivable that the bracket 5 is not made entirely of a thermally conductive sheet/sheet metal part, but that only the top plate 50 is made of a thermally conductive sheet.

In order to prevent the rotation of the temperature sensing element 3 around the positioning post 59, an integrally bent section inclined upward is formed at one end of the top plate 50, which constitutes a rotation stopper 503.

The principle of the holder of the second embodiment is similar to that of the holder of the first embodiment. As shown in fig. 7 to 9, schematic views in which the capacitor 1 and the temperature-sensitive element 3 are equipped to the support 5 are shown at various angles. After the capacitor 1 is placed in the clamping space 54, the distance between the top plate 50 and the limiting member 52 is "enlarged" due to its own volume, so that the included angle between the first section 563 and the second section 565 of the elastic arm 561 is increased, and the increase of the included angle causes the elastic arm 561 to apply a force to the top plate 50 and the limiting member 52 by virtue of its elasticity, so that they clamp the capacitor 1, and further the temperature sensing element 3 is firmly pressed against the capacitor 1 by the clamping portion 57.

It should be understood that although the description is in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.

Claims

1. A mount for mounting a capacitor and a temperature sensing element in a UPS, wherein the temperature sensing element is configured to obtain a temperature of the capacitor, the mount comprising:

a top plate configured to mount the temperature sensing element;

the limiting piece and the top plate are arranged at intervals in an adjustable distance mode, and a clamping space for receiving the capacitor is defined between the top plate and the limiting piece; and

a connecting portion including a resilient arm having a first section and a second section, the first section having one end connected to the stopper and the other end connected to the second section, the second section having one end connected to the top plate away from the first section and being arranged at an angle with respect to the first section, the resilient arm being configured such that when a capacitor is mounted in the clamping space such that the angle between the first section and the second section increases, the resilient arm has a resiliency allowing the resilient arm to apply a force to the top plate and the stopper that causes them to clamp the capacitor;

the top plate is connected with a plurality of elastic arms, and the connecting part further comprises a connecting plate which is connected between two adjacent elastic arms and is suitable for surrounding the outer peripheral surface of the capacitor.

2. The bracket of claim 1, wherein the first section extends perpendicular to the top plate and the second section extends obliquely between the first section and the top plate.

3. The bracket of claim 1 or 2, wherein the second section extends obliquely from the top plate in a direction away from the stop.

4. The bracket of claim 3, wherein the extended end of the second section has a bent section parallel to the top plate, the bent section being connected to the end of the first section.

5. The bracket according to claim 1 or 2, wherein at least one pair of resilient arms are provided at opposite ends of the top plate, each resilient arm being integrally formed with the stopper at an end thereof remote from the top plate.

6. The bracket according to claim 1 or 2, wherein the retaining member is provided on the connecting plate.

7. A support according to claim 1 or 2, wherein the top plate has an opening adapted to receive the temperature sensing element and communicating with the clamping space, at least one pair of stops being disposed on opposite sides of the opening, at least one of the stops having a protruding snap-in portion formed thereon, the at least one pair of stops and the snap-in portion defining a space in which the temperature sensing element is received.

8. A support according to claim 1 or 2, wherein the top plate is provided with location posts adapted to pass through holes in the temperature-sensing element, the location posts being capable of forming an interference fit with a gland or being capable of forming a threaded fit with a gland nut to press the temperature-sensing element against the top plate, in which support at least the top plate is made of a thermally conductive sheet material.

9. The holder of claim 8, wherein said top plate has a rotational stop extending away from said holding space and adapted to prevent rotation of said temperature sensing element about said locating post.

10. A UPS comprising a capacitor, wherein the UPS further comprises a temperature sensing element for sensing a temperature of the capacitor, the capacitor and the temperature sensing element being mounted on a support, wherein the support is according to any of claims 1 to 9.