Condition responsive switching apparatus
    1.
    发明授权
    Condition responsive switching apparatus 失效
    条件响应切换装置

    公开(公告)号:US5101188A

    公开(公告)日:1992-03-31

    申请号:US505964

    申请日:1990-04-06

    CPC classification number: H01H35/2657 H01H35/2614 H01H37/12 H01H37/26

    Abstract: A condition responsive switching apparatus with an alarm feature for use in refrigeration appliances, such as freezers or the like. The switching apparatus includes a contact operator which moves between first, second, and third positions in response to the pressure changes of a bellows. The bellows pressure increases and decreases in response to changes in temperature sensed at the appliance. The apparatus includes a first set of control contacts to provide energization of a compressor and a second set of alarm contacts to provide energization of an alarm circuit. The contact operator has a first dog which opens and closes the control set of contacts as the operator moves through a snap action increment of travel between the first and second positions. An alarm spring opposes the travel of a second dog of the contact operator beyond the second position with a preload force until the excess of the snap action energy of the operator is dissipated. The alarm spring, thereafter, opposes the contact operator with a spring gradient until the operator reaches the third position and closes the alarm contacts. The closure of the alarm contacts causes the energization of an alarm circuit which signals that the appliance temperature is in excess of the cycling temperature and that the failure of a system component is likely to have occurred.

    Abstract translation: 一种具有警报功能的状态响应型开关装置,用于诸如冷冻机等的制冷装置。 开关装置包括响应于波纹管的压力变化在第一,第二和第三位置之间移动的接触操作器。 波纹管压力响应于器具感测到的温度变化而增加和减少。 该装置包括第一组控制触点,以提供压缩机的通电和第二组报警触点,以提供报警电路的通电。 接触操作者具有第一个狗,当驾驶员通过第一和第二位置之间的快动行进增量移动时,打开和关闭控制触点组。 报警弹簧用接触操作器的第二个狗的行程超过第二个位置,以预加载力抵抗操作员的快速动作能量的过剩消散。 此后,报警弹簧与弹簧梯度相反,直到操作员到达第三位置并关闭报警触点。 报警触点的闭合导致报警电路的通电,该报警电路指示设备温度超过循环温度,并且可能发生系统组件的故障。

    Condition responsive switching apparatus
    2.
    发明授权
    Condition responsive switching apparatus 失效
    状态响应开关装置

    公开(公告)号:US4937549A

    公开(公告)日:1990-06-26

    申请号:US415662

    申请日:1989-10-02

    CPC classification number: H01H35/2614 H01H37/12

    Abstract: A condition responsive switching apparatus with an alarm feature for use in refrigeration appliances, such as freezers or the like. The switching apparatus includes a contact operator which moves between first, second, and third positions in response to the pressure changes of a bellows. The bellows pressure increases and decreases in response to changes in temperature sensed at the appliance. The apparatus includes a first set of control contacts to provide energization of a compressor and a second set of alarm contacts to provide energization of an alarm circuit. The contact operator has a first dog which opens and closes the control set of contacts as the operator moves through a snap action increment of travel between the first and second positions. An alarm spring opposes the travel of a second dog of the contact operator beyond the second position with a preload force until the excess of the snap action energy of the operator is dissipated. The alarm spring, thereafter, opposes the contact operator with a spring gradient until the operator reaches the third position and closes the alarm contacts. The closure of the alarm contacts causes the energization of an alarm circuit which signals that the appliance temperature is in excess of the cycling temperature and that the failure of a system component is likely to have occurred.

    Abstract translation: 一种具有警报功能的状态响应型开关装置,用于诸如冷冻机等的制冷装置。 开关装置包括响应于波纹管的压力变化在第一,第二和第三位置之间移动的接触操作器。 波纹管压力响应于器具感测到的温度变化而增加和减少。 该装置包括第一组控制触点,以提供压缩机的通电和第二组报警触点,以提供报警电路的通电。 接触操作者具有第一个狗,当驾驶员通过第一和第二位置之间的快动行进增量移动时,打开和关闭控制触点组。 报警弹簧用接触操作器的第二个狗的行程超过第二个位置,以预加载力抵抗操作员的快速动作能量的过剩消散。 此后,报警弹簧与弹簧梯度相反,直到操作员到达第三位置并关闭报警触点。 报警触点的闭合导致报警电路的通电,该报警电路指示设备温度超过循环温度,并且可能发生系统组件的故障。

    Constant-on, variable-stroke refrigeration thermostat
    3.
    发明授权
    Constant-on, variable-stroke refrigeration thermostat 失效
    恒定式,可变行程制冷恒温器

    公开(公告)号:US5142261A

    公开(公告)日:1992-08-25

    申请号:US748468

    申请日:1991-08-22

    CPC classification number: H01H35/2614

    Abstract: A constant-on variable-stroke refrigeration thermostat is disclosed wherein the toggle spring-biased operating lever has a fixed-position stop when the contacts are open and a variable-position stop when the contacts are closed, and wherein an air gap is provided between the actuator prong of the operating lever and the moveable contact blade of the switch contacts to allow the operating lever to travel downwardly with increased momentum before the switch contacts are opened. The primary advantage provided by the present invention is that the thermostat is of a much simpler construction, which results in a lower cost and a higher reliability.

    Abstract translation: 公开了一种恒定可变行程制冷恒温器,其中肘节弹簧偏置操作杆在触头打开时具有固定位置停止,当触点闭合时具有可变位置停止,并且其中在气缸 操作杆的致动器插脚和开关的可动触点刀片接触,以允许操作杆在开关触点打开之前以增加的动量向下行进。 本发明提供的主要优点是恒温器结构简单得多,这导致了更低的成本和更高的可靠性。

    Temperature responsive electrical switch device
    4.
    发明授权
    Temperature responsive electrical switch device 失效
    温度敏感电气开关装置

    公开(公告)号:US4774489A

    公开(公告)日:1988-09-27

    申请号:US108209

    申请日:1987-10-14

    CPC classification number: H01H37/38 H01H37/18 H01H89/04

    Abstract: A temperature responsive electrical switch device has means operable generally for switching between a pair of switching means, and temperature responsive means is operable generally at a set-point temperature for effecting the operation of the switching means. Means is linearly movable in response to an applied force exerted thereon and arranged in camming engagement with an associated part of the temperature responsive means for setting the set-point temperature.

    Abstract translation: 温度响应电开关装置具有通常用于在一对开关装置之间切换的装置,并且温度响应装置通常在设定点温度下操作以实现开关装置的操作。 装置可以响应于施加在其上的施加的力线性地移动并且布置成与用于设定设定点温度的温度响应装置的相关部分的凸轮接合。

    Methods for fabricating an electrical contact
    5.
    发明授权
    Methods for fabricating an electrical contact 失效
    制造电接点的方法

    公开(公告)号:US5020217A

    公开(公告)日:1991-06-04

    申请号:US475916

    申请日:1990-02-06

    CPC classification number: H01H11/041 H01R43/16 Y10T29/4921 Y10T29/49218

    Abstract: A method of fabricating an electrical contact formed at least in part of a precious metal which defines a contact surface on the electrical contact. In this method, an initial discrete deformation of the precious metal extends a projection of the precious metal to a first preselected height beyond the contact surface. Thereafter a further discrete deformation of at least the precious metal projection forms it into a preselected configuration and also alters the extension of the precious metal projection to another preselected height beyond the contact surface different than the first preselected height.

    Abstract translation: 一种制造形成至少部分贵金属的电触头的方法,所述贵金属限定了电触头上的接触表面。 在这种方法中,贵金属的初始离散变形将贵金属的突起延伸到超过接触表面的第一预选高度。 此后,至少贵金属突起的另外离散的变形将其形成为预选构造,并且还改变了贵金属突起延伸到超过不同于第一预选高度的接触表面的另一预选高度。

    Electrical contact having a precious metal extrusion extending from a
contact surface
    6.
    发明授权
    Electrical contact having a precious metal extrusion extending from a contact surface 失效
    具有从接触表面延伸的贵金属挤出物的电接触

    公开(公告)号:US5484971A

    公开(公告)日:1996-01-16

    申请号:US678503

    申请日:1991-04-01

    CPC classification number: H01H11/041 H01R43/16 Y10T29/4921 Y10T29/49218

    Abstract: An electrical contact comprises a body formed of a precious metal in which the precious metal defines a contact surface of the body. At least one projection of the precious metal is formed generally centrally of the contact surface so as to extend therebeyond by successive discrete extrusions of the precious metal into a preselected configuration comprising the projection. A free end portion on the projection is spaced from the contact surface and comprises a chordal section of a sphere.

    Abstract translation: 电触点包括由贵金属形成的主体,贵金属在其中限定了主体的接触表面。 贵金属的至少一个突起通常形成在接触表面的中心,以便通过贵金属的连续离散挤压成包括突起的预选构造在其上延伸。 突起上的自由端部与接触表面间隔开并且包括球体的弦状部分。

    Condition responsive electric switch system, electrical switching device
and method of operation thereof
    7.
    发明授权
    Condition responsive electric switch system, electrical switching device and method of operation thereof 失效
    状态响应电开关系统,电气开关装置及其操作方法

    公开(公告)号:US4490708A

    公开(公告)日:1984-12-25

    申请号:US391607

    申请日:1982-06-24

    CPC classification number: H01H35/2614

    Abstract: A condition responsive electric switch system comprises switch means which includes at least one set of contact elements defining a preselected open position, a preselected closed position, and a preselected initial contact make-break position, disposed between the open and closed positions. Switch actuating means is movable in actuating relation with the switch means for operating the contact elements selectively into and out of the three preselected positions. Spring means and temperature responsive means are connected to and impart motion to switch actuating means, with the spring means and temperature responsive means creating opposing forces on the switch actuating means. The condition responsive electric switch system has both positive and negative spring gradients including a force producing means having maximum absolute positive gradient forces F.sub.1 and F.sub.2 in which F.sub.1 =maximum absolute positive gradient pre-load force on the contact elements at the preselected initial contact make-break position; F.sub.2 =maximum absolute positive gradient force on the contact elements at the preselected closed position wherein the value of the expression (F.sub.2 -F.sub.1)/F.sub.2 should not be substantially less than unity. A net contact element force is also produced generally in the vicinity of zero as the contact elements pass at least through the preselected initial contact make-break position. The system further includes means for adjusting the larger negative spring gradients in the system.An electrical switch device and a method of operating the switching device are also disclosed.

    Abstract translation: 条件响应电开关系统包括开关装置,其包括设置在打开位置和关闭位置之间的至少一组限定预选打开位置,预选闭合位置和预选的初始触点断开位置的接触元件组。 开关致动装置可与开关装置致动关系,以便使接触元件选择性地进入和离开三个预选位置。 弹簧装置和温度响应装置连接到开关致动装置并使其运动,弹簧装置和温度响应装置在开关致动装置上产生相反的力。 条件响应电开关系统具有正和负的弹簧梯度,包括具有最大绝对正梯度力F1和F2的力产生装置,其中F1 =在预选的初始接触点处的接触元件上的最大绝对正梯度预加载力, 休息位置 F2 =在预选闭合位置处的接触元件上的最大绝对正梯度力,其中表达式(F2-F1)/ F2的值不应该显着小于单位。 当接触元件至少通过预选的初始触点断开位置时,网络接触元件力通常也在零附近产生。 该系统还包括用于调节系统中较大负的弹簧梯度的装置。 还公开了电开关装置和操作开关装置的方法。

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